Recombinant Human VMO1 Protein
Name :
Recombinant Human VMO1 Protein
Biological Activity :
Background :
Vitelline membrane outer layer protein 1 (VMO1), a basic protein present in the outer layer of the vitelline membrane of eggs, plays essential roles in separating the yolk from the egg white and preventing infection from bacteria by forming a barrier of fibrous layers in avian eggs. VMO1 is regulated by estrogen and target microRNAs and it is a potential diagnostic marker of ovarian cancer in laying hens.
Biological Activity :
Testing in progress
Expression Host :
Human
Source :
HEK293 Cells
Tag :
Protein Accession No. :
NP_872372.1
NCBI Gene ID :
Synonyms :
Synonyms :
vitelline membrane outer layer 1 homolog (chicken)
Amino Acid Sequence :
Molecular Weight :
The recombinant human VMO1 consists of 178 amino acids and predicts a molecular mass of 19.04 kDa.
Purity :
> 95 % as determined by SDS-PAGE.
State of Matter :
Product Concentration :
Storage and Stability :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Endotoxin Level :
< 1.0 EU per μg protein as determined by the LAL method.
Protein Construction :
A DNA sequence encoding the human VMO1 (NP_872372.1) (Met1-Ser202) was expressed with five amino acids (DDDDK) at the C-terminus.
Buffer Solution :
Lyophilized from sterile PBS, pH 7.4.Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0.01% Tween80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hardcopy of datasheet.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Redissolution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Synonyms :
ERGA6350 Protein, Human; PRO21055 Protein, Human VMO1 背景信息 Vitelline membrane outer layer protein 1 (VMO1), a basic protein present in the outer layer of the vitelline membrane of eggs, plays essential roles in separating the yolk from the egg white and preventing infection from bacteria by forming a barrier of fibrous layers in avian eggs. VMO1 is regulated by estrogen and target microRNAs and it is a potential diagnostic marker of ovarian cancer in laying hens.
References & Citations :
MedChemExpress (MCE) recombinant proteins include: cytokines, enzymes, growth factors, hormones, receptors, transcription factors, antibody fragments, etc. They are often essential for supporting cell growth, stimulating cell signaling pathways, triggering or inhibiting cell differentiation; and are useful tools for elucidating protein structure and function, understanding disease onset and progression, and validating pharmaceutical targets. At MedChemExpress (MCE), we strive to provide products with only the highest quality. Protein identity, purity and biological activity are assured by our robust quality control and assurance procedures.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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VCAM-1 Protein
Name :
VCAM-1 Protein
Description :
Vascular cell adhesion molecule 1 (VCAM-1) is a cell surface protein belonging to the immunoglobulin superfamily, the protein is expressed by activated endothelial cells and certain leukocytes (such as macrophages). IL-1 beta, IL-4, TNF-alpha and IFN-gamma induced the expression of VCAM-1. The human and mouse VCAM-1 proteins share approximately 76% amino acid similarity. Mouse VCAM-1 is Important in cell-cell recognition. it appears to function in leukocyte-endothelial cell adhesion, and interacts with integrin alpha-4/beta-1 (ITGA4/ITGB1) on leukocytes, and mediates both adhesion and signal transduction.
Species :
Mouse
Uniprotkb :
Human Cells
Tag :
C-Fc
Synonyms :
Vascular cell adhesion protein 1, Vcam1
Construction :
Recombinant Mouse Vascular Cell Adhesion Molecule 1 is produced by our Mammalian expression system and the target gene encoding Phe25-Glu698 is expressed with a human IgG1 Fc tag at the C-terminus.
Protein Purity :
Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Molecular Weight :
100-130 KDa, reducing conditions
Endotoxin :
Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Formulatione :
Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
Reconstitution :
Always centrifuge tubes before opening.Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100μg/ml.Dissolve the lyophilized protein in distilled water.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Stability & Storage :
Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt.Reconstituted protein solution can be stored at 2-8°C for 2-7 days.Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping :
The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below.
Research Background :
Vascular cell adhesion molecule 1 (VCAM-1) is a cell surface protein belonging to the immunoglobulin superfamily, the protein is expressed by activated endothelial cells and certain leukocytes (such as macrophages). IL-1 beta, IL-4, TNF-alpha and IFN-gamma induced the expression of VCAM-1. The human and mouse VCAM-1 proteins share approximately 76% amino acid similarity. Mouse VCAM-1 is Important in cell-cell recognition. it appears to function in leukocyte-endothelial cell adhesion, and interacts with integrin alpha-4/beta-1 (ITGA4/ITGB1) on leukocytes, and mediates both adhesion and signal transduction.
References and Literature :
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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Asp f 28 Protein
Name :
Asp f 28 Protein
Description :
Species :
Aspergillus Fumigatus
Uniprotkb :
E. coli
Tag :
Tag Free
Synonyms :
Construction :
Protein Purity :
≥ 95 % as determined by SDS-PAGE.
Molecular Weight :
Approxiamtely 12.9 kDa
Endotoxin :
Please contact us for more information.
Formulatione :
Lyophilized from sterile 20mM Tris, 300mM NaCl, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
References and Literature :
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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tPA Protein
Name :
tPA Protein
Description :
Tissue plasminogen activator (abbreviated tPA or PLAT), is traditionally viewed as a simple serine protease whose main function is to convert plasminogen into biologically active plasmin. As a protease, tPA plays a crucial role in regulating blood fibrinolysis, in maintaining the homeostasis of extracellular matrix and in modulating the post-translational activation of growth factors. tPA is synthesized and secreted as a single chain polypeptide precursor which is cleaved in turn by plasmin. Proteolytic cleavage at the C-terminal side of Arg275 generates the enzyme composed of two subunits, designated as α and β chains which are held together by a single disulfide bond. Unlike the other members of the chymotrypsin family, tPA has one particular distinction in that the catalytic efficiency of the single-chain enzyme is only slightly lower than that of the proteolytically cleaved form and is therefore not a true zymogen. tPA is found not only in the blood, where its primary function is as a thrombolytic enzyme, but also in the central nervous system (CNS). It participates in a number of physiological and pathological events in the CNS, as well as the role of neuroserpin as the natural regulator of tPA’s activity in these processes. Increased or decreased activity of tPA leads to hyperfibrinolysis or hypofibrinolysis, respectively. Besides, as a cytokine, tPA plays a pivotal role in the pathogenesis of renal interstitial fibrosis through diverse mechanisms. Thus, as a fibrogenic cytokine, it promotes the progression of kidney diseases.
Species :
Mouse
Uniprotkb :
HEK293
Tag :
hFc
Synonyms :
plasminogen activator, tissue, AU020998, tPA, AW212668, D8Ertd2e
Construction :
A DNA sequence encoding the mouse PLAT (P11214) (Ile309-Gln559) was was expressed with the fused Fc region of human IgG1 at the N-terminus.
Protein Purity :
> 80 % as determined by SDS-PAGE
Molecular Weight :
Approxiamtely 56.4 kDa
Endotoxin :
Formulatione :
Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
Tissue plasminogen activator (abbreviated tPA or PLAT), is traditionally viewed as a simple serine protease whose main function is to convert plasminogen into biologically active plasmin. As a protease, tPA plays a crucial role in regulating blood fibrinolysis, in maintaining the homeostasis of extracellular matrix and in modulating the post-translational activation of growth factors. tPA is synthesized and secreted as a single chain polypeptide precursor which is cleaved in turn by plasmin. Proteolytic cleavage at the C-terminal side of Arg275 generates the enzyme composed of two subunits, designated as α and β chains which are held together by a single disulfide bond. Unlike the other members of the chymotrypsin family, tPA has one particular distinction in that the catalytic efficiency of the single-chain enzyme is only slightly lower than that of the proteolytically cleaved form and is therefore not a true zymogen. tPA is found not only in the blood, where its primary function is as a thrombolytic enzyme, but also in the central nervous system (CNS). It participates in a number of physiological and pathological events in the CNS, as well as the role of neuroserpin as the natural regulator of tPA’s activity in these processes. Increased or decreased activity of tPA leads to hyperfibrinolysis or hypofibrinolysis, respectively. Besides, as a cytokine, tPA plays a pivotal role in the pathogenesis of renal interstitial fibrosis through diverse mechanisms. Thus, as a fibrogenic cytokine, it promotes the progression of kidney diseases.
References and Literature :
1. Yepes M,et al.(2004) New functions for an old enzyme: nonhemostatic roles for tissue-type plasminogen activator in the central nervous system. Exp Biol Med (Maywood). 229(11): 1097-104. 2. Samson AL,et al.(2006) Tissue-type plasminogen activator: a multifaceted modulator of neurotransmission and synaptic plasticity. Neuron. 50(5): 673-8. 3. Skrzypiec AE,et al.(2008) Tissue plasminogen activator in the amygdala: a new role for an old protease. J Physiol Pharmacol. 59 Suppl 8: 135-46. 4. Hu K, et al. (2008) Novel actions of tissue-type plasminogen activator in chronic kidney disease. Front Biosci. 13: 5174-86.
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ARL2BP Protein
Name :
ARL2BP Protein
Description :
ADP-ribosylation factor (ARF)-like proteins (ARLs) comprise a functionally distinct group of the ARF family of RAS-related GTPases. ARL2BP binds to ARL2.GTP with high affinity but does not interact with ARL2.GDP, activated ARF, or RHO proteins. The lack of detectable membrane association of ARL2BP or ARL2 upon activation of ARL2 is suggestive of actions distinct from those of the ARFs. ARL2BP is considered to be the first ARL2-specific effector identified, due to its interaction with ARL2.GTP but lack of ARL2 GTPase-activating protein activity. ARL2BP, together with ARL2, plays a role in the nuclear translocation, retention and transcriptional activity of STAT3. ARL2BP may play a role as an effector of ARL2.
Species :
Human
Uniprotkb :
E. coli
Tag :
His
Synonyms :
RP66, ADP-ribosylation factor-like 2 binding protein, BART1, BART
Construction :
A DNA sequence encoding the mature form of human ARL2BP (Q9Y2Y0-1) (Met1-His163) was expressed with a polyhistidine tag at the N-terminus.
Protein Purity :
> 85 % as determined by SDS-PAGE
Molecular Weight :
Approxiamtely 20.7 kDa
Endotoxin :
Please contact us for more information.
Formulatione :
Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
ADP-ribosylation factor (ARF)-like proteins (ARLs) comprise a functionally distinct group of the ARF family of RAS-related GTPases. ARL2BP binds to ARL2.GTP with high affinity but does not interact with ARL2.GDP, activated ARF, or RHO proteins. The lack of detectable membrane association of ARL2BP or ARL2 upon activation of ARL2 is suggestive of actions distinct from those of the ARFs. ARL2BP is considered to be the first ARL2-specific effector identified, due to its interaction with ARL2.GTP but lack of ARL2 GTPase-activating protein activity. ARL2BP, together with ARL2, plays a role in the nuclear translocation, retention and transcriptional activity of STAT3. ARL2BP may play a role as an effector of ARL2.
References and Literature :
1. Qiu J. et al., 2011, PLoS Pathog. 7 (8): e1002193. 2. Taniuchi K. et al., 2012, PLoS One. 7 (4): e35674. 3. Taniuchi K. et al., 2012, Neoplasia. 14 (5): 440-50.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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TCCR Protein
Name :
TCCR Protein
Description :
The interleukin-27 receptor is a type I cytokine receptor for interleukin-27. It is a heterodimer composed of the interleukin 27 receptor, alpha subunit, and glycoprotein 130. WSX-1/IL-27R, a class I cytokine receptor that is homologous to the β2 chain of the IL-12R in both sequence and structure, is highly expressed by resting/naive CD4+ T cells and CD8+ T cells. WSX-1/IL-27R belongs to the IL-6/IL-12 family of cytokines and induced proliferation of naive CD4(+) T cells and the generation of a Th1-type adaptive immune response. WSX-1/IL-27R functions as a receptor for IL27. IL-27 not only contributes to the development of an adaptive immune response through its action on CD4(+) T cells, it also directly acts on cells of the innate immune system. WSX-1/IL-27R requires IL6ST/gp130 to mediate signal transduction in response to IL27. This signaling system acts through STAT3 and STAT1. It is involved in the regulation of Th1-type immune responses. IL-27R also appears to be involved in innate defense mechanisms. IL27RA is essential for transcriptional activation of STAT1 and for augmenting the induction of T-bet expression during initiation of Th1 cell differentiation.
Species :
Human
Uniprotkb :
HEK293
Tag :
hFc
Synonyms :
WSX1, interleukin 27 receptor, α, IL27R, TCCR, IL-27RA, interleukin 27 receptor, alpha, zcytor1, CRL1
Construction :
A DNA sequence encoding the extracellular domain (Met 1-Arg 514) of human IL27Rα (NP_004834.1) was fused with the Fc region of human IgG1 at the C-terminus.
Protein Purity :
> 95 % as determined by SDS-PAGE
Molecular Weight :
Approxiamtely 79 kDa
Endotoxin :
Formulatione :
Lyophilized from sterile PBS, pH 7.4, 8% trehalose, 8% mannitolPlease contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
The interleukin-27 receptor is a type I cytokine receptor for interleukin-27. It is a heterodimer composed of the interleukin 27 receptor, alpha subunit, and glycoprotein 130. WSX-1/IL-27R, a class I cytokine receptor that is homologous to the β2 chain of the IL-12R in both sequence and structure, is highly expressed by resting/naive CD4+ T cells and CD8+ T cells. WSX-1/IL-27R belongs to the IL-6/IL-12 family of cytokines and induced proliferation of naive CD4(+) T cells and the generation of a Th1-type adaptive immune response. WSX-1/IL-27R functions as a receptor for IL27. IL-27 not only contributes to the development of an adaptive immune response through its action on CD4(+) T cells, it also directly acts on cells of the innate immune system. WSX-1/IL-27R requires IL6ST/gp130 to mediate signal transduction in response to IL27. This signaling system acts through STAT3 and STAT1. It is involved in the regulation of Th1-type immune responses. IL-27R also appears to be involved in innate defense mechanisms. IL27RA is essential for transcriptional activation of STAT1 and for augmenting the induction of T-bet expression during initiation of Th1 cell differentiation.
References and Literature :
1. Pflanz S,et al.. (2004) WSX-1 and glycoprotein 130 constitute a signal-transducing receptor for IL-27. J Immunol. 172(4): 2225-31. 2. Yoshida H,et al.. (2001) WSX-1 is required for the initiation of Th1 responses and resistance to L. major infection. Immunity. 215(4): 569-78. 3. Villarino A,et al.. (2003) The IL-27R (WSX-1) is required to suppress T cell hyperactivity during infection. Immunity. 19(5): 645-55.
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SLC27A4/FATP4 Protein
Name :
SLC27A4/FATP4 Protein
Description :
SLC27A4/ATG4B complex might act as a new potential therapeutic target of lung tumor chemotherapy. The solute carrier 27A (SLC27A) gene family encodes fatty acid transport proteins (FATPs) and includes 6 members. Autism spectrum disorders (ASD) are now recognized as disorders caused by impaired early brain development, it is possible that functional abnormalities of SLC27A genes may contribute to the pathogenesis of ASD. The expression of SLC27A3 and SLC27A4 in human neural stem cells derived from human induced pluripotent stem cells, which suggested their involvement in the developmental stage of the central nervous system.
Species :
Human
Uniprotkb :
HEK293
Tag :
His
Synonyms :
FATP4, IPS, solute carrier family 27 (fatty acid transporter), member 4, ACSVL4
Construction :
A DNA sequence encoding the human SLC27A4 (NP_005085.2) (Gln483-Leu643) was expressed with a N-terminal polyhistidine tag.
Protein Purity :
> 85 % as determined by SDS-PAGE
Molecular Weight :
Approxiamtely 20.5 kDa
Endotoxin :
Formulatione :
Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
SLC27A4/ATG4B complex might act as a new potential therapeutic target of lung tumor chemotherapy. The solute carrier 27A (SLC27A) gene family encodes fatty acid transport proteins (FATPs) and includes 6 members. Autism spectrum disorders (ASD) are now recognized as disorders caused by impaired early brain development, it is possible that functional abnormalities of SLC27A genes may contribute to the pathogenesis of ASD. The expression of SLC27A3 and SLC27A4 in human neural stem cells derived from human induced pluripotent stem cells, which suggested their involvement in the developmental stage of the central nervous system.
References and Literature :
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
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Shiga toxin II subunit B Protein
Name :
Shiga toxin II subunit B Protein
Description :
E. Coli STX2B is a subunit of Stx2. Stx2, together with Stx1, formed a family of related toxins which are known as shiga toxins. Shiga toxins are mainly produced by the bacteria S. dysenteriae and the Shigatoxigenic group of Escherichia coli, which includes serotypes O157:H7, O104:H4, and other enterohemorrhagic E. coli (EHEC). A total of 3222 outbreak cases (including 39 deaths) have been reported in northern Germany in May through June 2011. The outbreak strain was typed as an enteroaggregative Shiga-toxin–producing E. coli O104:H4, producing extended-spectrum beta-lactamase. The toxin has two subunits—A and B. E. Coli STX2B is the B subunit. It is a pentamer that binds to specific glycolipids on the host cell, specifically globotriaosylceramide. Following this, the A subunit is internalised and cleaved into two parts. Stx2 has been found to be approximately 400 times more toxic (as quantified by LD50 in mice) than Stx-1. The Stx1 and Stx2 B subunits form a pentameric structure that binds to globotriaosylceramide receptors on eukaryotic cells and promotes endocytosis.
Species :
E. coli
Uniprotkb :
E. coli
Tag :
His
Synonyms :
Construction :
A DNA sequence encoding the E.Coli STX2B (Q93EY4) (Met 1-Asp 89) was expressed, with a polyhistide tag at the N-terminus.
Protein Purity :
> 95 % as determined by SDS-PAGE
Molecular Weight :
Approxiamtely 10.6 kDa
Endotoxin :
Please contact us for more information.
Formulatione :
Lyophilized from sterile PBS, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
E. Coli STX2B is a subunit of Stx2. Stx2, together with Stx1, formed a family of related toxins which are known as shiga toxins. Shiga toxins are mainly produced by the bacteria S. dysenteriae and the Shigatoxigenic group of Escherichia coli, which includes serotypes O157:H7, O104:H4, and other enterohemorrhagic E. coli (EHEC). A total of 3222 outbreak cases (including 39 deaths) have been reported in northern Germany in May through June 2011. The outbreak strain was typed as an enteroaggregative Shiga-toxin–producing E. coli O104:H4, producing extended-spectrum beta-lactamase. The toxin has two subunits—A and B. E. Coli STX2B is the B subunit. It is a pentamer that binds to specific glycolipids on the host cell, specifically globotriaosylceramide. Following this, the A subunit is internalised and cleaved into two parts. Stx2 has been found to be approximately 400 times more toxic (as quantified by LD50 in mice) than Stx-1. The Stx1 and Stx2 B subunits form a pentameric structure that binds to globotriaosylceramide receptors on eukaryotic cells and promotes endocytosis.
References and Literature :
1. Obata F.et al. (2008) Shiga Toxin 2 Affects the Central Nervous System through Receptor Globotriaosylceramide Localized to Neurons. J Infect Dis. 198 (9): 1398-406. 2. Tironi-Farinati C.et al. (2010) Intracerebroventricular Shiga toxin 2 increases the expression of its receptor globotriaosylceramide and causes dendritic abnormalities. J Neuroimmunol. 222 (1-2): 48-61. 3. Asakura H.et al. (2001) Phylogenetic diversity and similarity of active sites of Shiga toxin (stx) in Shiga toxin-producing Escherichia coli (STEC) isolates from humans and animals. Epidemiol Infect. 127 (1): 27-36.
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SARS-CoV-2 XE(BA.1 x BA.2) Nucleocapsid Protein (His)
Name :
SARS-CoV-2 XE(BA.1 x BA.2) Nucleocapsid Protein (His)
Description :
Coronaviruses are enveloped viruses with a positive-sense RNA genome and with a nucleocapsid of helical symmetry. Coronavirus nucleoproteins localize to the cytoplasm and the nucleolus, a subnuclear structure, in both virus-infected primary cells and in cells transfected with plasmids that express N protein. The coronavirus N protein is required for coronavirus RNA synthesis and has RNA chaperone activity that may be involved in template switch. Nucleocapsid protein is the most abundant protein of coronavirus. During virion assembly, N protein binds to viral RNA and leads to the formation of the helical nucleocapsid. Nucleocapsid protein is a highly immunogenic phosphoprotein also implicated in viral genome replication and in modulating cell signaling pathways. Because of the conservation of the N protein sequence and its strong immunogenicity, the N protein of coronavirus is chosen as a diagnostic tool.
Species :
SARS-CoV-2
Uniprotkb :
E. coli
Tag :
His
Synonyms :
Construction :
A DNA sequence encoding the SARS-CoV-2 XE(BA.1 x BA.2) Nucleocapsid (YP_009724397.2, with mutations P13L, R203K, G204R, S413R)(Met1-Ala419) was expressed with a polyhistidine tag at the N-terminus. The mutations were identified in the SARS-CoV-2 variant (known as variant XE(BA.1 x BA.2)).
Protein Purity :
> 95 % as determined by SDS-PAGE.
Molecular Weight :
Approxiamtely 46.75 kDa
Endotoxin :
Please contact us for more information.
Formulatione :
Lyophilized from sterile 50mM PB, 500mM NaCl, pH 7.4. Please contact us for any concerns or special requirements. Normally 5 % – 8 % trehalose, mannitol and 0. 01% Tween 80 are added as protectants before lyophilization. Please refer to the specific buffer information in the hard copy of CoA.
Reconstitution :
A hardcopy of datasheet with reconstitution instructions is sent along with the products. Please refer to it for detailed information.
Stability & Storage :
Samples are stable for up to twelve months from date of receipt at -20℃ to -80℃. Store it under sterile conditions at -20℃ to -80℃. It is recommended that the protein be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Shipping :
In general, recombinant proteins are provided as lyophilized powder which are shipped at ambient temperature.Bulk packages of recombinant proteins are provided as frozen liquid. They are shipped out with blue ice unless customers require otherwise.
Research Background :
Coronaviruses are enveloped viruses with a positive-sense RNA genome and with a nucleocapsid of helical symmetry. Coronavirus nucleoproteins localize to the cytoplasm and the nucleolus, a subnuclear structure, in both virus-infected primary cells and in cells transfected with plasmids that express N protein. The coronavirus N protein is required for coronavirus RNA synthesis and has RNA chaperone activity that may be involved in template switch. Nucleocapsid protein is the most abundant protein of coronavirus. During virion assembly, N protein binds to viral RNA and leads to the formation of the helical nucleocapsid. Nucleocapsid protein is a highly immunogenic phosphoprotein also implicated in viral genome replication and in modulating cell signaling pathways. Because of the conservation of the N protein sequence and its strong immunogenicity, the N protein of coronavirus is chosen as a diagnostic tool.
References and Literature :
1. Van Boheemen S, et al. (2012), MBio. 3(6):e00473-12.Bisht H. et al., 2004, Proc Natl Acad Sci. 101 (17): 6641-6.Li W. et al., 2005, Science. 309 (5742): 1864-8.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
CD204 Antibody Cancer Estrone Endogenous Metabolite PMID:34708424 MedChemExpress (MCE) offers a wide range of high-quality research chemicals and biochemicals (novel life-science reagents, reference compounds and natural compounds) for scientific use. We have professionally experienced and friendly staff to meet your needs. We are a competent and trustworthy partner for your research and scientific projects.Related websites: https://www.medchemexpress.com
Biotinylated Human IL-18 R1 Protein
Product Name :
Biotinylated Human IL-18 R1 Protein
EN
CD218a; IL18Ra; IL18R1; IL1RRP; IL-1 R5; IL-1 Rrp; IL-18 R alpha; IL-18 R1; IL-18Ra
Description:
| Biotinylated Human IL-18 R1/CD218a Protein with the C-His-Avi Tag |Source: The reco|>95% by SEC-HPLC and SDS-|Less than 1 EU per ug of protein as determined by LAL method. |Formulation: Lyophilized from 0.22 um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization. |Reconstitution: It is recommended to reconstitute the lyophilized reco|The recombinant Biotinylated Human IL-18 R1/CD218a Protein is shipped with ice |Use a manual defrost freezer and avoid repeated freeze-thaw cycles. 12 months from date of receipt, -20 to -70°C as supplied. 1 week, 2 to 8°C under sterile conditions after reconstitution. 6 months, -20 to -70°C under sterile conditions after reconstitution.
Source:
The recombinant Biotinylated Human IL-18 R1/CD218a Protein, (amino acids Ala19-Arg329) fused with a His-Avi tag at the C-terminus, was produced in HEK 293 cells.
Molecular Weight :
The recombinant Biotinylated Human IL-18 R1/CD218a protein with the His-Avi tag at the C-terminus has a predicted MW of 38.8 kDa. Due to glycosylation, the protein migrates to 60-70 kDa based on Tris-Bis PAGE result.
Activity:
The affinity constant of 1.24 nM as determined in SPR assay (Biacore T200).
Purity :
>95% by SEC-HPLC and SDS-PAGE under reducing conditions.
Endotoxin:
LevelLess than 1 EU per ug of protein as determined by LAL method.
Formulation :
Lyophilized from 0.22 um filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
Reconstitution:
It is recommended to reconstitute the lyophilized recombinant Biotinylated Human IL-18 R1/CD218a Protein in sterile H2O to a protein concentration not less than 100 ug/ml. Centrifuge the tube before opening.
Shipping:
The recombinant Biotinylated Human IL-18 R1/CD218a Protein is shipped with ice pack. Upon receipt, store it immediately at the temperature recommended below.
Stability & Storage :
/strong>Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
Related category websites: https://www.medchemexpress.com/recombinant-proteins.html
114798-26-4 IUPAC Name 134678-17-4 MedChemExpress PMID:30860698 MedChemExpress (MCE) offers a wide range of high-quality research chemicals and biochemicals (novel life-science reagents, reference compounds and natural compounds) for scientific use. We have professionally experienced and friendly staff to meet your needs. We are a competent and trustworthy partner for your research and scientific projects.Related websites: https://www.medchemexpress.com