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UGT1A1 (Glucuronosyltransferase 1A1, UDP-glucuronosyltransferase 1

Cat no: U1275-27

UGT1A1 (Glucuronosyltransferase 1A1, UDP-glucuronosyltransferase 1

UGT1A1 is a 52-57kD member of the UGT1A subfamily, UGT family of enzymes. UGT1A1 is expressed by the liver, and catalyzes the conjugation of glucuronic acid (GA) from UDPGA to lipophilic acceptors such as (anti-cancer) drugs and bilirubin. Addition of glucuronic acid increases target solubility and facilitates elimination. Mature human UGT1A1 is a 508aa type I transmembrane ER glycoprotein. It contains a 465aa luminal domain (aa26-490) plus a 26aa cytoplasmic region. The luminal domain is unusual in that aa157-176 are embedded in the ER membrane. aa29-444 contain the enzyme active site. The cytoplasmic tail appears to mediate noncovalent homodimerization, and heterodimerization with UGT2B. The signal sequence aa1-25 is normally cleaved, but a Lys15Arg mutation blocks insertion into the ER membrane. There are multiple point mutations that impact enzyme activity. One potential splice form is reported that shows a six aa substitution for aa289-533. Over aa60-186, human UGT1A1 shares 64% aa identity with mouse UGT1A1.\n\nApplications:\nSuitable for use in Western Blot. Other applications not tested.\n\nRecommended Dilution:\nWestern Blot: 1ug/ml\nOptimal dilutions to be determined by the researcher.\n\nStorage and Stability:\nLyophilized powder may be stored at -20 degrees C. Stable for 12 months at -20 degrees C. Reconstitute with sterile PBS. Aliquot to avoid repeated freezing and thawing. Store at -20 degrees C. Reconstituted product is stable for 12 months at -20 degrees C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.

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SPECIFICATIONS

Catalog Number

U1275-27

Size

100ug

Hosts

Goat

Reactivities

Hum

Form

Supplied as a lyophilized powder in PBS, trehalose. Reconstitute with sterile PBS to 200ug/ml.

P Type

Pab

Purity

Purified by immunoaffinity chromatography.

Isotype

IgG

Additional Info

Recognizes human Glucuronosyltransferase 1A1. Species sequence homology: mouse (64%).

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