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MABT130 Sigma-Aldrich

Anti-Protein disulfide-isomerase Antibody, clone 1D3

This Anti-Protein disulfide-isomerase Antibody, clone 1D3 is validated for use in WB, IC for the detection of Protein disulfide-isomerase.

Synonym: Cellular thyroid hormone-binding protein, PDI, Prolyl 4-hydroxylase subunit beta, Protein disulfide-isomerase, p55



Related Categories Antibodies, Primary Antibodies More...
format   Purified
control   Human adrenal gland tissue lysate
molecular weight   ~57 kDa observed
application(s)   Western Blotting
isotype   IgG1κ
clone   Monoclonal Antibody
purification method   Protein G Purified
concentration   Please refer to the Certificate of Analysis for the lot-specific concentration.
host   Mouse
species reactivity   Human
NCBI accession no.   NP_000909
UniProt accession no.   P07237
gene symbol   P4HB(5034)
material size   100 µg
shipped in   wet ice
storage conditions   Stable for 1 year at 2-8°C from date of receipt.


Background information

Protein disulfide-isomerase, also known as PDI, is an abundant component of the ER that catalyzes disulfide bond formation in the biosynthesis of various secretory and cell surface proteins. It is a multifunctional polypeptide identical to the β-subunit of prolyl 4-hydroxylase, a α2β2 tetramer that catalyzes the formation of 4-hydroxyproline in collagen by the hydroxylation of proline residues in peptide linkages. PDI has two thioredoxin-like regions, each containing a Cys-Gly-His-Cys sequence that may represent two independently acting catalytic sites of PDI activity. The C-terminus of PDI has a KDEL sequence, which acts as retention signal for proteins of the ER lumen. The PDI/β-subunit of prolyl-4-hydroxylase is required for its retention in the ER.

Physical form

Purified mouse monoclonal IgG1κ in buffer containing 0.1 M Tris-Glycine (pH 7.4), 150 mM NaCl with 0.05% sodium azide.


Immunocytochemistry Analysis: A representative lot was used by an independent laboratory in methanol-fixed NRK cells (Vaux, D., et al. (1990). Nature. 345(7):495-502).


Linear peptide corresponding to human Protein disulfide-isomerase.

Quality Assurance

Evaluated by Western Blot in human adrenal gland tissue lysate.

Western Blot Analysis: 0.5 µg/mL of this antibody detected Protein disulfide-isomerase in 10 µg of human adrenal gland tissue lysate.

Usage Statement

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.
Protocols & Articles


Western Blot Protocol | Immunoblotting Protocol

Western Blotting refers to the electrophoretic transfer of proteins from sodium dodecyl sulfate polyacrylamide gels to sheets of PVDF or nitrocellullose membrane, followed by immunodetection of prote...
Keywords: AGE, Buffers, Cell disruption, Detergents, Dialysis, Electroblotting, Electrophoresis, Enzyme activity, Gel electrophoresis, Immunoprecipitation, PAGE, Protein extraction, Purification, Sample preparations, Western blot

Peer-Reviewed Papers


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