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Catalog Number: (89361-260)
Supplier: Genetex
Description: Cystatins are a superfamily of cysteine proteinase inhibitors found in both plants and animals. They comprise a group of proteinase inhibitors, widely distributed in tissues and body fluids, and form tight complexes with cysteine proteases such as cathepsin B, H, L and S. Cystatin C, a secreted molecule of this family, is of interest from biochemical, medicine and evolutionary points of view. Cystatin C, with molecular weight of 13260 Da, is composed of 120 amino acids, lacks carbohydrate and has two disulfide bridges located near the carboxyl terminus. Cystatin C is increased in patients with malignant diseases, and is related to the insufficiency of renal function and appears to be a better marker than creatinine. On the other hand, low levels of cystatin C involve cause the breakdown of the elastic laminae and, subsequently, the atherosclerosis and abdominal aortic aneurysm.


Catalog Number: (10077-950)
Supplier: Prosci
Description: MST1R/Ron, a HGF Receptor/MET-type protein kinase, mediates the biological activities of macrophage-stimulating protein (MSP), a multifunctional cytokine that regulates cell adhesion, motility, growth, and survival. The protein is a membrane-spanning, disulfide-linked heterodimer, which results from cleavage of a glycosylated precursor into 35-kD (alpha) and 150-kD (beta) subunits. Ligand binding results in tyrosine phosphorylation of the beta chain. In knockout studies, MST1R/RON (-/-) mice failed to survive past the periimplantation period. The MST1R/RON gene has been mapped to 3p21, a region of frequent deletion or mutation in small cell lung and renal carcinoma, and has been implicated in the progression of several epithelial cancers.


Catalog Number: (10344-048)
Supplier: Bioss
Description: The protein encoded by this gene, a member of the peptidase C1 family, is a lysosomal cysteine proteinase that appears to be a central coordinator for activation of many serine proteinases in immune/inflammatory cells. It is composed of a dimer of disulfide-linked heavy and light chains, both produced from a single protein precursor, and a residual portion of the propeptide acts as an intramolecular chaperone for the folding and stabilization of the mature enzyme. This enzyme requires chloride ions for activity and can degrade glucagon. Defects in the encoded protein have been shown to be a cause of Papillon-Lefevre syndrome, an autosomal recessive disorder characterized by palmoplantar keratosis and periodontitis. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq].


Catalog Number: (89360-418)
Supplier: Genetex
Description: The insulin receptor is a tetrameric transmembranous glycoprotein composed of two alpha subunits (120kD) and two beta subunits (90kD). The alpha subunits are disulfide linked, totally extracellular and are the insulin binding site. The beta subunits are transmembranous and contain an intracellular tyrosine kinase domain. The biological effects of insulin are mediated primarily through the insulin receptor. The interaction of insulin with the alpha-subunit of the insulin receptor activates the protein tyrosine kinase of the beta-subunit which then undergoes an autophosphorylation that increases its tyrosine kinase activity. Three adaptor proteins, IRS-1, IRS-2 and Shc, become phosphorylated on tyrosine residues following insulin receptor activation. These three phosphorylated proteins then interact with SH2 domain-containing signaling proteins.


Catalog Number: (75791-142)
Supplier: Prosci
Description: Peroxiredoxin-1(PRDX1) contains 1 thioredoxin domain and belongs to the AhpC/TSA family. PRDX1 constitutively expressed in most human cells and it is induced to higher levels upon serum stimulation in untransformed and transformed cells. PRDX1 is involved in redox regulation of the cell. It reduces peroxides with reducing equivalents provided through the thioredoxin system but not from glutaredoxin and play an important role in eliminating peroxides generated during metabolism. PRDX1 might participate in the signaling cascades of growth factors and tumor necrosis factor-alpha by regulating the intracellular concentrations of H2O2. It reduces an intramolecular disulfide bond in GDPD5 that gates the ability to GDPD5 to drive postmitotic motor neuron differentiation. It may contribute to the antiviral activity of CD8(+) T-cells and have a proliferative effect in cancer development or progression.


Catalog Number: (H-1558.0001BA)
Supplier: Bachem Americas
Description: The amphibian skin is a rich source of antimicrobial peptides, please see the same-named product family Other amphibian peptides as bombesin, caerulein, deltorphin, dermorphin, pseudin, sauvagine, and xenin show considerable pharmacological activity.


Catalog Number: (10395-958)
Supplier: Bioss
Description: Cav2.1 is a voltage-sensitive calcium channels (VSCC) which belongs to the calcium channel alpha-1 subunit family. Cav2.1 mediates the entry of calcium ions into excitable cells and is also involved in a variety of calcium-dependent processes, including muscle contraction, hormone or neurotransmitter release, gene expression, cell motility, cell division and cell death. Cav2.1 (isoform alpha-1A) gives rise to P and/or Q-type calcium currents. Voltage-dependent calcium channels are multisubunit complexes, consisting of alpha-1, alpha-2, beta and delta subunits in a 1:1:1:1 ratio. The channel activity is directed by the pore-forming and voltage-sensitive alpha-1 subunit. In many cases, this subunit is sufficient to generate voltage-sensitive calcium channel activity. The auxiliary subunits beta and alpha-2/delta linked by a disulfide bridge regulate the channel activity.


Catalog Number: (102869-466)
Supplier: R&D Systems
Description: The Recombinant Rat sTNF RII/TNFRSF1B Protein from R&D Systems is derived from NS0. The Recombinant Rat sTNF RII/TNFRSF1B Protein has been validated for the following applications: Bioactivity.


Supplier: Bachem Americas
Description: Melanin-concentrating hormone (MCH), originally isolated from salmon pituitary glands, has also been found in the mammalian CNS. In lower vertebrates, salmon MCH alters pigmentation by inducing melanosome aggregation within melanocytes of teleost fish, whereas it causes melanosome dispersion in amphibians and reptiles. The biological role of MCH in higher vertebrates, however, is not yet fully understood, but it may function as a neuromodulator and hypophysiotropic agent in the secretion of α-MSH, ACTH, and GH.

Catalog Number: (10458-226)
Supplier: Bioss
Description: Endoplasmic reticulum Marker. The sequence Lys-Asp-Glu-Leu (KDEL) or a closely related sequence, is present at the carboxy-terminus of soluble endoplasmic reticulum (ER) resident proteins and some membrane proteins. 78 and 94 kDa glucose regulated proteins (GRP 78) and GRP 94 respectively and protein disulfide isomerase (PDI) all share the C-terminal KDEL sequence. The presence of carboxy-terminal KDEL appears to be necessary for ER retention and appears to be sufficient to reduce the secretion of proteins from the ER. This retention is reported to be mediated by a KDEL receptor.


Catalog Number: (10465-122)
Supplier: Bioss
Description: TXNDC5 is a protein-disulfide isomerase. Its expression is induced by hypoxia and its role may be to protect hypoxic cells from apoptosis. ERp19 and ERp46 are two newly discovered ER luminal proteins, related to protein disulphide isomerase. Western and Northern blot analyses have revealed that both ERp19 and ERp46 and their respective mRNAs are highly expressed in the liver as compared with other tissues. Both proteins are enriched in purified liver ER vesicles and were localized specifically to the ER in McA-RH7777 hepatocytes. See Knoblach et al. for details.


Supplier: G-Biosciences
Description: The conjugation and modification reactions used to cross-link proteins or couple labels to proteins, such as biotin, enzymes, and fluorescent dyes, require certain conditions, including pH and chemical composition, for optimal conjugation

Catalog Number: (10072-882)
Supplier: Prosci
Description: The Trefoil Factor peptides (TFF1, TFF2 and TFF3) are secreted in the gastrointestinal tract, and appear to play an important role in intestinal mucosal defense and repair. TFF-3 is expressed by goblet cells and in the uterus, and has also been shown to express in certain cancers, including colorectal, hepatocellular, and in biliary tumors. TFF3 may be useful as a molecular marker for certain types of cancer, but its role, if any, in tumorigenesis is unknown. TFF3 also promotes airway epithelial cell migration and differentiation. Recombinant human TFF3 is a 13.2 kDa homodimeric protein consisting of two 59 amino acid chains, which includes a 40-amino acid trefoil motif containing three conserved intramolecular disulfide bonds.


Catalog Number: (10467-580)
Supplier: Bioss
Description: Relaxin is a peptide hormone produced by the corpora lutea of ovaries during pregnancy in many mammalian species, including man. The secretion of the hormone into the blood stream just before parturition results in a marked softening and lengthening of the pubic symphysis and a softening of the cervix, which facilitates the birth process. By inhibiting uterine contractions, relaxin may influence the timing of parturition. Like insulin, relaxin consists of two peptide chains, A and B, covalently linked by disulfide bonds. By further analogy to insulin, the two peptides are synthesized as a single-chain precursor polypeptide with the B chain at the NH2-terminus.


Catalog Number: (10069-968)
Supplier: Prosci
Description: FUNCTION: Also acts as the receptor for echovirus 7 and related viruses (echoviruses 13, 21, 29 and 33).
SUBUNIT: Monomer (major form) and non-disulfide-linked, covalent homodimer (minor form).
PTM: The Ser/Thr-rich domain is heavily O-glycosylated.
SIMILARITY: Contains 4 Sushi (CCP/SCR) domains.
SUBCELLULAR LOCATION: Attached to the membrane by a GPI-anchor (isoform 2).
TISSUE SPECIFICITY: Expressed on the plasma membranes of all cell types that are in intimate contact with plasma complement proteins. It is also found on the surfaces of epithelial cells lining extracellular compartments, and variants of the molecule are present in body fluids and in extracellular matrix.


Catalog Number: (102869-480)
Supplier: R&D Systems
Description: The Recombinant Human Angiostatin Fc Chimera Protein from R&D Systems is derived from NS0. The Recombinant Human Angiostatin Fc Chimera Protein has been validated for the following applications: Bioactivity.


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