The three dimensional structure of many extracellular proteins is stabilized by the formation of disulphide bonds.
Studies suggest that a microsomal enzyme known as Protein Disulphide Isomerase (PDI) is involved in disulphide-bond formation via its oxidase activity and isomerization via its isomerase activity, as well as the reduction of disulphide bonds in proteins (1).
Studies suggest BiP and PDI work together sequentially to increase oxidation of these proteins (2, 3).
PDI has also been found to function as a chaperone to prevent the aggregation of unfolded substrates, and serves as a subunit of prolyl 4-hydroxylase and microsomal triglyceride transferase (4, 5).
PDI is an abundant 55kD protein located primarily in the ER, however studies have also proved its presence in the cytosol (1).
PDI has the ability to reside in the ER permanently due to the highly conserved KDEL sequence at its C-terminal (6).
It uses C-terminal KDEL as a retention signal, and this appears to be sufficient to reduce the secretion of proteins from the ER.
This retention is reported to be mediated by a KDEL receptor (7).
Applications:Suitable for use in Western Blot, Immunocytochemistry/Immunofluorescence, Immunohistochemistry, Immunoprecipitation.
Other applications not tested.
Recommended Dilution:Western Blot: 1:1000Immunocytochemistry/Immunofluorescence: 1:100Optimal dilutions to be determined by the researcher.
Storage and Stability:May be stored at 4°C for short-term only.
Aliquot to avoid repeated freezing and thawing.
Store at -20°C.
Aliquots are stable for 12 months after receipt.
For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap.
仕様
Size:100ul
Host:rabbit
Source Antibody:rat
Grade:Affinity Purified
Purity:Purified by peptide affinity chromatography.
Form:Supplied as a liquid in PBS, pH 7.4, 0.09% sodium azide, 50% glycerol.
Specificity:Recognizes rat PDI at ~58kD. Species Crossreactivity: canine, human, monkey, mouse, xenopus laevis, bovine, guinea pig, hamster, mollusk, mussel, porcine, sheep.
Isotype:IgG
Calc Applications Abbrev:IC IF IHC IP WB
Calc Crossreactivity:Bo Ca Gp Hm Hu Mk Mo Po Rt Xe
Immunogen:Synthetic peptide corresponding to rat PDI, conjugated to KLH.