s-100 protein b chain

Involved in countering the first line of host defense mechanisms. Specifically inhibits the response of human neutrophils and monocytes to complement anaphylatoxin C5a and formylated peptides, like N-formyl-methionyl-leucyl-phenylalanine (fMLP). Acts by binding directly to the C5a receptor (C5aR) and formylated peptide receptor (FPR), thereby blocking the C5a- and fMLP-induced calcium responses. Prevents phagocytosis of the bacterium. Chemotaxis inhibitory Protein, S. aureus (strain MRSA252), Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 16.1 kDa and the accession number is Q6GFB3.

S100-B, is an acidic protein with a molecular weight of 21 kDa belonging to the S100 family. S100-B contains two EF-hand-type calcium-binding motifs separated by a hinge region with a hydrophobic cleft. S100-B plays an important role in neurodevelopment, differentiation, and brain construction. S100-B has neuroprotective effects, but at high concentrations S100-B is neurotoxic. Extracellular concentration of S100-B increases following brain damage, which easily penetrates into cerebrospinal fluid in brain damage and then into the blood. S100-B is expressed and produced by astrocytes in vertebrate brains and in the CNS, and the astrocytes are the major cells producing S100-B protein in gray matter, as well as oligodendrocytes are the predominant S100-B in protein producing cells in white matter. The major advantage of using S100-B is that elevations in serum or CSF levels provide a sensitive measure for determining CNS injury at the molecular level before gross changes develop, enabling timely delivery of crucial medical intervention before irreversible damage occurs. In addition, S100-B, which is also present in Mouse melanocytes, is a reliable marker for melanoma malignancy both in bioptic tissue and in serum.

JAM-B Protein, Human, Recombinant (His) is expressed in HEK293 mammalian cells with C-6xHis tag. The predicted molecular weight is 35-39 KDa and the accession number is P57087.

JAM-B Protein, Human, Recombinant (hFc) is expressed in HEK293 mammalian cells with C-Fc tag. The predicted molecular weight is 60-75 KDa and the accession number is P57087.

Cholera toxin is protein complex secreted by the bacterium Vibrio cholerae. It is responsible for the massive, watery diarrhea characteristic of cholera infection. Cholera enterotoxin subunit B (CTXB) pentameric ring directs the A subunit to its target by binding to the GM1 gangliosides present on the surface of the intestinal epithelial cells. It can bind five GM1 gangliosides. It has no toxic activity by itself.

The biological activity of the toxin is produced by the A chain, which activates intracellular adenyl cyclase.

PGLYRP1 PGRP-S Protein, Bovine, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 26.3 kDa and the accession number is Q8SPP7.

The S-layer is a paracrystalline mono-layered assembly of proteins which coats the surface of bacteria. This protein is critical for virulence. S-layer Protein, Campylobacter fetus, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 33.0 kDa and the accession number is P35827.

Non-enzymatic component of C3 and C5 convertases and thus essential for the propagation of the classical complement pathway. Covalently binds to immunoglobulins and immune complexes and enhances the solubilization of immune aggregates and the clearance of IC through CR1 on erythrocytes. Catalyzes the transacylation of the thioester carbonyl group to form ester bonds with carbohydrate antigens.

Granzyme B Protein, Human, Recombinant (E. coli, His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 31.0 kDa and the accession number is P10144.

Carries out three functions: biotin carboxyl carrier protein, biotin carboxylase and carboxyltransferase. Involved in the synthesis of very-long-chain fatty acid synthesis which is required to maintain a functional nuclear envelope. Required for acylation and vacuolar membrane association of VAC8 which is necessary to maintain a normal morphology of the vacuole. ACC1 Protein, S. cerevisiae, Recombinant (aa 2-581, His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 69.9 kDa and the accession number is Q00955.

Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate. Required for repair of UV radiation- and etoposide-induced DNA damage. NDPK Protein, S. cerevisiae, Recombinant (E. coli, His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 21.2 kDa and the accession number is P36010.

Major role in the synthesis of nucleoside triphosphates other than ATP. The ATP gamma phosphate is transferred to the NDP beta phosphate via a ping-pong mechanism, using a phosphorylated active-site intermediate. Required for repair of UV radiation- and etoposide-induced DNA damage. NDPK Protein, S. cerevisiae, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 19.2 kDa and the accession number is P36010.

Interconversion of 3- and 2-phosphoglycerate with 2,3-bisphosphoglycerate as the primer of the reaction. Can also Catalyzes the reaction of EC 5.4.2.4 (synthase), but with a reduced activity. GPM1 Protein, S. cerevisiae, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 29.5 kDa and the accession number is P00950.

The biological function of streptavidin is not known. Forms a strong non-covalent specific complex with biotin (one molecule of biotin per subunit of streptavidin). Streptavidin Protein, S. avidinii, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 18.5 kDa and the accession number is P22629.

Inhibits a wide variety of beta lactamases. BLIP Protein, S. clavuligerus, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 33.5 kDa and the accession number is P35804.

Virulence factor that is important for the establishment of infection in the host. EsxA is required for EsxB synthesis as well as secretion. Modulates host cell apoptotic pathways and mediates together with EsxB the release of S.aureus from the host cell. By acting on apoptosis, plays a role in the modulation of dendritic cell-mediated immunity. EsxA Protein, S. aureus, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 27.0 kDa and the accession number is Q6GCJ0.

Toxin that seems to act by forming pores in the membrane of the cell. Has a hemolytic and a leucotoxic activity. HlgC Protein, S. aureus, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 34.6 kDa and the accession number is Q7A3S2.

Removes the formyl group from the N-terminal Met of newly synthesized proteins. Requires at least a dipeptide for an efficient rate of reaction. N-terminal L-methionine is a prerequisite for activity but the enzyme has broad specificity at other positions. Peptide deformylase Protein, S. aureus, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 22.6 kDa and the accession number is P68826.

Bacterial hemolysins are exotoxins that attack blood cell membranes and cause cell rupture. Beta-hemolysin is a phospholipase C with specific activity toward sphingomyelins. Has a high specificity for sphingomyelin, hydrolyzes lysophosphatidylcholine at a much lower rate, but has no activity towards phosphatidylcholine, phosphatidylethanolamine, or phosphatidylserine. Phospholipase C Protein, S. aureus, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 35.7 kDa and the accession number is P09978.

Serine protease that cleaves specifically after the sequence Trp-Glu-Leu-Gln. SplB Protein, S. aureus, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 29.8 kDa and the accession number is A7X3Q8.

Involved in countering the first line of host defense mechanisms. Efficiently inhibits opsonization, phagocytosis and killing of S.aureus by human neutrophils. Acts by binding and stabilizing human C3 convertases (C4b2a and C3bBb), leading to their inactivation. The convertases are no longer able to cleave complement C3, therefore preventing further C3b deposition on the bacterial surface and phagocytosis of the bacterium. Also prevents C5a-induced neutrophil responses. SCIN Protein, S. aureus, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 17.2 kDa and the accession number is A7X482.

Key enzyme in folate metabolism. Catalyzes an essential reaction for de novo glycine and purine synthesis, and for DNA precursor synthesis. Dihydrofolate reductase Protein, S. epidermidis, Recombinant (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 22.0 kDa and the accession number is P0C0P1.

Toxic component of a type II toxin-antitoxin (TA) system. Ribosome-independent, sequence-specific endoribonuclease that cleaves mRNA, thus inhibiting protein synthesis and inducing bacterial stasis. It cuts between the first and nucleotides of 5'-UACAU-3' in single-stranded RNA. Neutralized by coexpression with cognate antitoxin MazE. MazF Protein, S. epidermidis, Recombinant (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 19.0 kDa and the accession number is Q9F7V5.

Staphylococcal enterotoxin that activates the host immune system by binding as unprocessed molecules to major histocompatibility (MHC) complex class II and T-cell receptor (TCR) molecules. In turn, this ternary complex activates a large number of T-lymphocytes initiating a systemic release of proinflammatory cytokines. Causes also the intoxication staphylococcal food poisoning syndrome.

Sucrose-cleaving enzyme that provides UDP-glucose and fructose for various metabolic pathways. SUS1 Protein, S. cerevisiae, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 41.3 kDa and the accession number is P31925.

Catalyzes the transfer of the alpha-amino group from S-adenosyl-L-methionine (SAM) to 7-keto-8-aminopelargonic acid (KAPA) to form 7,8-diaminopelargonic acid (DAPA). It is the only aminotransferase known to utilize SAM as an amino donor. BIO3 Protein, S. cerevisiae, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 58.7 kDa and the accession number is P50277.

Polymerizes chitin, a structural polymer of the cell wall and septum, by transferring the sugar moiety of UDP-GlcNAc to the non-reducing end of the growing chitin polymer. Required for mitotic division septum formation during adverse conditions. CHS1 Protein, S. cerevisiae, Recombinant (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 26.6 kDa and the accession number is P08004.

Highly cationic enzyme that can bind human or rat immunoglobulins as well as serum albumin, and could therefore be involved in post-infectious sequelae. NPTase Protein, S. aureus, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 19.7 kDa and the accession number is P21222.

Influenza B (B Victoria 02 1987) Hemagglutinin HA1 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 38.9 kDa and the accession number is A4D5N9.

Human cytomegalovirus (HCMV) Glycoprotein B gB Protein (aa 1-700, hFc) is expressed in HEK293 mammalian cells with Fc tag. The predicted molecular weight is 104 kDa and the accession number is P13201.

Granzyme B, also known as GZMB, is the most prominent member of the granzyme family of cell death-inducing serine proteases expressed in the granules of cytotoxic T lymphocytes (CTLs) and NK cells. Granzyme B enters the target cells depending on another membrane-binding granule protein, perforin, results in the activation of effector caspases and mitochondrial depolarization through caspase-dependent and -independent pathways, and consequently induces rapid cell apoptosis. Over 3 substrates of GZMB have been identified including the key substrate caspase-3, ICAD, and Bid. GZMB is suggested to protect the host by lysing cells bearing on their surface 'nonself' antigens such as bacterial and viral infected-cells and tumor cells and accordingly plays an essential role in immunosurveillance.

HIV-1 (group M, subtype B, strain 92418) p24 Protein (His) is expressed in E. coli expression system with His tag. The predicted molecular weight is 26.5 kDa and the accession number is B6DRA0.

Coagulation factor XIII B chain, also known as Fibrin-stabilizing factor B subunit, Protein-glutamine gamma-glutamyltransferase B chain, Transglutaminase B chain and F13B, is a secreted protein which contains 1 Sushi ( CCP SCR ) domains. Coagulation factor XIII is the last zymogen to become activated in the blood coagulation cascade. Plasma factor XIII is a heterotetramer composed of 2 A subunits and 2 B subunits. The A subunits have catalytic function, and the B subunits do not have enzymatic activity and may serve as a plasma carrier molecules. Platelet factor XIII is composed of just 2 A subunits, which are identical to those of plasma origin. The B chain of factor XIII is not catalytically active, but is thought to stabilize the A subunits and regulate the rate of transglutaminase formation by thrombin. Factor XIII acts as a transglutaminase to catalyze the formation of gamma-glutamyl-epsilon-lysine crosslinking between fibrin molecules, thus stabilizing the fibrin clot. Factor XIII deficiency is classified into two categories: type I deficiency, characterized by the lack of both the A and B subunits; and type II deficiency, characterized by the lack of the A subunit alone. These defects can result in a lifelong bleeding tendency, defective wound healing, and habitual abortion. Defects in F13B are the cause of factor XIII subunit B deficiency ( FA13BD ) which is an autosomal recessive disorder characterized by a life-long bleeding tendency, impaired wound healing and spontaneous abortion in affected women.

Endothelin B Receptor Protein, Human, Recombinant (mFc) is expressed in HEK293 mammalian cells with mFc tag. The predicted molecular weight is 34.4 kDa and the accession number is P24530-1.

PPP3R1 belongs to the calcineurin regulatory subunit family. It is a regulatory subunit of calcineurin. Calcineurin is composed of two subunits: calcineurin A (CnA) and calcineurin B (CnB). Dephosphorylation of the nuclear factor of activated T-cells (NF-AT) by Calcineurin is essential for NF-AT activation, nuclear translocation, and early gene expression in T-cells. PPP3R1 is a Ser Thr-specific calcium and calmodulin-dependent protein phosphatase which takes a vital part in the T cell activation pathway. PPP3R1 is involved in protein dephosphorylation, NFAT protein import into nucleus (ortholog) and epithelial to mesenchymal transition (ortholog). It participates in calcineurin signaling pathway; mitogen activated protein kinase signaling pathway. PPP3R1 interacts with (+)-pilocarpine, 2,4-dinitrotoluene and ammonium chloride. It contains four EF-hand domains and four functional calcium-binding sites. PPP3R1 plays an important role in the T cell activation pathway.

NKG2A CD159a Protein, Human, Recombinant (aa 100-233, His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 17.7 kDa and the accession number is P26715-1.

HIV-p66 RT-p66 (group M, subtype B (isolate HXB2) Gag-Pol polyprotein Protein (His) is expressed in E. coli expression system with His tag. The predicted molecular weight is 66.7 kDa and the accession number is P04585.

HIV-1 (group M, subtype B, strain HXB2) p24 Protein (His) is expressed in E. coli expression system with His tag. The predicted molecular weight is 26.5 kDa and the accession number is P04591.

Influenza B (B Massachusetts 03 2010) Hemagglutinin HA1 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 39.1 kDa and the accession number is M9QWB8.

Influenza A H5N1 (A Indonesia 5 2005) Hemagglutinin HA-specific B cell probe Protein (His) is expressed in Baculovirus insect cells with His tag. The predicted molecular weight is 58.2 kDa and the accession number is AHJ09886.1.

Influenza B (B Hong Kong 05 1972) Hemagglutinin HA1 Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 38.6 kDa and the accession number is Q1K9F2.

Cathepsin B Protein, Rat, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 37.1 kDa and the accession number is F7FAT8.

Influenza B (B Brisbane 60 2008) Neuraminidase NA Protein is expressed in HEK293 mammalian cells. The predicted molecular weight is 51.1 kDa and the accession number is 4CPL_A.

Hepatitis B virus (HBV) capsid assembly is a critical step in the propagation of the virus and is mediated by the core protein. The first cytoplasmic step in the formation of an infectious HBV virion is the formation of a capsid containing pregenomic RNA (pgRNA) and the viral polymerase (Pol). HBV capsid assembly is an attractive target for new antiviral therapies.

Influenza B (B Maryland 1959) Hemagglutinin HA Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 59.7 kDa and the accession number is AAA43701.

Influenza B (B Ann Arbor 1 1986) Hemagglutinin HA Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 59.5 kDa and the accession number is Q1K9G3.

Influenza B (B Oita 15 1992) Hemagglutinin HA Protein (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 59.6 kDa and the accession number is A4D5U4.