protein s-100

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

Protein S/PROS1 Protein, Mouse, Recombinant (His) is expressed in HEK293 mammalian cells with His tag. The predicted molecular weight is 73.75 kDa and the accession number is Q08761.

Hum s 1 Protein, Humulus scandens, Recombinant is expressed in E. coli expression system. The predicted molecular weight is 27.32 kDa.

The spike protein (S) of coronavirus (CoV) attaches the virus to its cellular receptor, angiotensin-converting enzyme 2 (ACE2). A defined receptor-binding domain (RBD) on S mediates this interaction.The S protein plays key parts in the induction of neutralizing-antibody and T-cell responses, as well as protective immunity. SARS-COV-2 Spike S Trimer Protein (His & Avi), Biotinylated is expressed in HEK293 mammalian cells with C-His-Avi tag. The predicted molecular weight is 136.6 kDa and the accession number is A0A6G7K2L4.

Glutathione Synthetase belongs to the eukaryotic GSH synthase family. Glutathione Synthetase is the second enzyme in the glutathione biosynthesis pathway. It catalyses the condensation of gamma-glutamylcysteine and glycine to form glutathione. Glutathione play an important role in a variety of biological functions, including detoxification of xenobiotics, protection of cells from oxidative damage by free radicals, and membrane transport. The protein functions as a homodimer to catalyze the second step of glutathione biosynthesis, which is the ATP-dependent conversion of gamma-L-glutamyl-L-cysteine to glutathione. Defects in Glutathione Synthetase can also cause the glutathione synthetase deficiency of erythrocytes, which is a mild form causing hemolytic anemia.

Major allergen Ani s 1 Protein, Anisakis simplex, 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 Q7Z1K3.

Packages the positive strand viral genome RNA into a helical ribonucleocapsid (RNP) and plays a fundamental role during virion assembly through its interactions with the viral genome and membrane protein M. Plays an important role in enhancing the efficiency of subgenomic viral RNA transcription as well as viral replication. IBV (strain Vic S) Nucleoprotein/NP Protein (E. coli, His) is expressed in E. coli expression system with C-6xHis tag. The predicted molecular weight is 46.1 kDa and the accession number is Q96598.

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 217-775, His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 67.6 kDa and the accession number is Q00955.

Mannosyltransferase involved in adding the 4th and 5th mannose residues of O-linked glycans. MNT3 Protein, S. cerevisiae, Recombinant (His) is expressed in Baculovirus insect cells with N-10xHis tag. The predicted molecular weight is 71.2 kDa and the accession number is P40549.

Responsible for the proteolytic maturation of the alpha-factor precursor. STE13 Protein, S. cerevisiae, Recombinant (His) is expressed in E. coli expression system with N-6xHis tag. The predicted molecular weight is 18.0 kDa and the accession number is P33894.

Involved in DNA double-strand break (DSB) repair and recombination. Promotes the annealing of complementary single-stranded DNA and by stimulation of the RAD51 recombinase. RAD52 Protein, S. cerevisiae, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 41.1 kDa and the accession number is P06778.

Active on 2-DOG-6P, also very active on fructose-1P. DOG1 Protein, S. cerevisiae, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 29.1 kDa and the accession number is P38774.

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. Enterotoxin type B Protein, S. aureus, Recombinant (GST) is expressed in E. coli expression system with N-GST tag. The predicted molecular weight is 55.4 kDa and the accession number is P01552.

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. Enterotoxin type C-3 Protein, S. aureus, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 43.6 kDa and the accession number is P0A0L5.

Staphylococcal enterotoxins cause the intoxication staphylococcal food poisoning syndrome. The illness is characterized by high fever, hypotension, diarrhea, shock, and in some cases death. Enterotoxin type G Protein, S. aureus (strain N315), Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 43.0 kDa and the accession number is P0A0L7.

Toxin that seems to act by forming pores in the membrane of the cell. Has a hemolytic and a leucotoxic activity. HlgA 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 39.4 kDa and the accession number is P0A073.

Toxin that seems to act by forming pores in the membrane of the cell. Has a hemolytic and a leucotoxic activity. HlgB Protein, S. aureus, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 36.1 kDa and the accession number is P0A075.

Part of an ATP-driven transport system. PsaA Protein, S. oralis, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 40.1 kDa and the accession number is Q9L5W9.

Important streptococcal virulence factor which cleaves human fibronectin and degrades vitronectin. Also cleaves human IL1B precursor to form biologically active IL1B. Can induce apoptosis in human monocytes and epithelial cells in vitro, and reduces phagocytic activity in monocytic cells. Thus, may play a role in bacterial colonization, invasion, and inhibition of wound healing. Streptopain Protein, S. pyogenes serotype M28, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 43.6 kDa and the accession number is Q48R29.

Acts as a pH-gated potassium ion channel; changing the cytosolic pH from 7 to 4 opens the channel. KcsA Protein, S. coelicolor, Recombinant (His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 23.7 kDa and the accession number is P0A333.

Required for the biosynthesis of type 5 capsular polysaccharide (Cap5/CP5). Might act as the chain-length regulator. Cap5A Protein, S. aureus, Recombinant (His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 26.4 kDa and the accession number is P95695.

May enhance ubiquitin ligase activity of RING-type zinc finger-containing E3 ubiquitin-protein ligases. Proposed to act through recruitment and/or stabilization of the Ubl-conjugating enzyme (E2) at the E3:substrate complex. Cap8A Protein, S. aureus, Recombinant (His) is expressed in E. coli expression system with N-10xHis tag. The predicted molecular weight is 26.4 kDa and the accession number is O15479.

Carrier of the growing fatty acid chain in fatty acid biosynthesis. Is able to confer high methicillin resistance to S.aureus when overproduced. ACP Protein, S. aureus, Recombinant (GST) is expressed in E. coli expression system with N-GST tag. The predicted molecular weight is 35.5 kDa and the accession number is P0A001.

Protease that has a low substrate specificity. Glucagon is preferentially cleaved between aromatic (Phe) and hydrophobic (Val) amino acids. Hydrolyzes casein and elastin. Extracellular elastase Protein, S. epidermidis, Recombinant (His & Myc) is expressed in E. coli expression system with N-10xHis and C-Myc tag. The predicted molecular weight is 37.7 kDa and the accession number is P0C0Q4.

Toxic component of a type II toxin-antitoxin (TA) system. Phosphorylates UDP-N-acetyl-D-glucosamine (UNAG) on the 3'-hydroxyl group of the N-acetyl-D-glucosamine moiety, yielding UNAG-3P. UNAG-3P inhibits MurA, the first committed step in cell wall synthesis, which is then blocked. Phosphorylation is inhibited by cognate epsilon antitoxin. Part of a postsegregational killing (PSK) system involved in the killing of plasmid-free cells. The zeta toxin induces programmed cell death. Toxin zeta Protein, S. agalactiae, Recombinant (His) is expressed in yeast with N-6xHis tag. The predicted molecular weight is 34.7 kDa and the accession number is P0A4M2.

Glutathione peroxidase-like protein that protects cells from phospholipid hydroperoxides and nonphospholipid peroxides during oxidative stress. Plays an important role in the oxidative stress-induced response in the presence of Ca(2+). Has peroxidase activity using preferentially thioredoxin as a reducing power. The redox state of the mitochondrial GPX2 is regulated by TRX1 and TRX2 (cytoplasmic thioredoxin), and by TRX3 (mitochondrial matrix thioredoxin). Involved in sporulation. GPX2 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 23.4 kDa and the accession number is P38143.

Plays a role in the inhibition of both the innate and adaptive immune responses. Possesses two N-terminal domains that bind the Fc region of IgG and two domains that form a tripartite complex with complement factors C3b and CFH. By recruiting CFH and C3b, the secreted form acts as a potent complement inhibitor of the alternative pathway-mediated lysis. Sbi Protein, S. aureus, Recombinant (Avi & His & MBP), Biotinylated is expressed in E. coli expression system with N-MBP and C-6xHis-Avi tag. The predicted molecular weight is 94.8 kDa and the accession number is Q2FVK5.

MCAT Protein, S. aureus, Recombinant (His & SUMO) is expressed in E. coli expression system with N-6xHis-SUMO tag. The predicted molecular weight is 49.6 kDa and the accession number is Q5HGK3.