英文名称
P4HB Recombinant Rabbit mAb
英文别名
CLCRP1; DSI; ERBA2L; GIT; P4Hbeta; PDI; PDIA1; PHDB; PO4DB; PO4HB; PROHB; ERp59; Thbp; PDIR; PDIA1_HUMAN; P4HB; Cellular thyroid hormone-binding protein; Prolyl 4-hydroxylase subunit beta; p55; 5.3.4.1; PDIA1_MOUSE; Endoplasmic reticulum resident protein 59 (ER protein 59 | ERp59); PDIA1_RAT; procollagen-proline, 2-oxoglutarate 4-dioxygenase (proline 4-hydroxylase), beta polypeptide (protein disulfide isomerase; thyroid hormone binding protein p55); procollagen-proline, 2-oxoglutarate 4-dioxygenase (proline 4-hydroxylase), beta polypeptide (protein disulfide isomerase-associated 1); procollagen-proline, 2-oxoglutarate 4-dioxygenase (proline 4-hydroxylase), beta polypeptide; prolyl 4-hydroxylase, beta polypeptide; protein disulfide isomerase-associated 1; protein disulfide isomerase family A, member 1; collagen prolyl 4-hydroxylase beta
免疫原
A synthesized peptide derived from human PDI: 440-508
纯化方法
affinity purified by Protein A
储存液
10mM phosphate buffered saline(pH 7.4) with 150mM sodium chloride, 0.05% BSA, 0.02% Proclin300 and 50% glycerol.
保存条件
Store at 4℃ for short term. Store at -20℃ for long term. Avoid repeated freeze/thaw cycles.
注意事项
This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications.
产品介绍
蛋白质二硫键异构酶(PDI,Protein Disulfide lsomerase)是一种亚基分子量为57kD的二聚体蛋白,一般认为它参与细胞内蛋白质天然二硫键的形成,它催化蛋白质巯基和二硫键的交换反应.
背景资料
This multifunctional protein catalyzes the formation, breakage and rearrangement of disulfide bonds. At the cell surface, seems to act as a reductase that cleaves disulfide bonds of proteins attached to the cell.
蛋白名
Protein disulfide-isomerase
亚基
Homodimer. Monomers and homotetramers may also occur. Also constitutes the structural subunit of prolyl 4-hydroxylase and of the microsomal triacylglycerol transfer protein MTTP in mammalian cells. Stabilizes both enzymes and retain them in the ER without contributing to the catalytic activity (By similarity). Binds UBQLN1. Binds to CD4, and upon HIV-1 binding to the cell membrane, is part of a P4HB/PDI-CD4-CXCR4-gp120 complex.
亚细胞定位
Endoplasmic reticulum lumen. Melanosome. Cell membrane; Peripheral membrane protein (Potential). Note=Highly abundant. In some cell types, seems to be also secreted or associated with the plasma membrane, where it undergoes constant shedding and replacement from intracellular sources (Probable). Localizes near CD4-enriched regions on lymphoid cell surfaces. Identified by mass spectrometry in melanosome fractions from stage I to stage IV.
组织特异性
Detected in the flagellum and head region of spermatozoa (at protein level).
相似性
Belongs to the protein disulfide isomerase family.
Contains 2 thioredoxin domains.
功能
This multifunctional protein catalyzes the formation, breakage and rearrangement of disulfide bonds. At the cell surface, seems to act as a reductase that cleaves disulfide bonds of proteins attached to the cell. May therefore cause structural modifications of exofacial proteins. Inside the cell, seems to form/rearrange disulfide bonds of nascent proteins. At high concentrations, functions as a chaperone that inhibits aggregation of misfolded proteins. At low concentrations, facilitates aggregation (anti-chaperone activity). May be involved with other chaperones in the structural modification of the TG precursor in hormone biogenesis. Also acts a structural subunit of various enzymes such as prolyl 4-hydroxylase and microsomal triacylglycerol transfer protein MTTP.