Purification and characterization of aldose reductase and aldehyde reductase from human kidney

Naseem Ansari, A. Bhatnagar, S. Liu, Satish Srivastava

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Aldose reductase and aldehyde reductases have been purified to homogeneity from human kidney and have molecular weights of 32,000 and 40,000 and isoelectric pH 5.8 and 5.3, respectively. Aldose reductase, beside catalyzing the reduction of various aldehydes, reduces aldo-sugars, whereas aldehyde reductase, does not reduce aldo-sugars. Aldose reductase activity is expressed with either NADH or NADPH as cofactor, whereas aldehyde reductase utilizes only NADPH. Both enzymes are inhibited to varying degrees by aldose reductase inhibitors. Antibodies against bovine lens aldose reductase precipitated aldose reductase but not aldehyde reductase. The sequence of addition of the substrates to aldehyde reductase is ordered and to aldose reductase is random, whereas for both the enzymes the release of product is ordered with NADP released last.

Original languageEnglish (US)
Pages (from-to)755-765
Number of pages11
JournalBiochemistry International
Volume25
Issue number4
StatePublished - 1991

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Aldehyde Reductase
Purification
Kidney
NADP
Sugars
Enzymes
Aldehydes
NAD
Lenses
Molecular Weight

ASJC Scopus subject areas

  • Biochemistry

Cite this

Purification and characterization of aldose reductase and aldehyde reductase from human kidney. / Ansari, Naseem; Bhatnagar, A.; Liu, S.; Srivastava, Satish.

In: Biochemistry International, Vol. 25, No. 4, 1991, p. 755-765.

Research output: Contribution to journalArticle

Ansari, Naseem ; Bhatnagar, A. ; Liu, S. ; Srivastava, Satish. / Purification and characterization of aldose reductase and aldehyde reductase from human kidney. In: Biochemistry International. 1991 ; Vol. 25, No. 4. pp. 755-765.
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