| Structural highlights
Function
[AK1BA_HUMAN] Acts as all-trans-retinaldehyde reductase. Can efficiently reduce aliphatic and aromatic aldehydes, and is less active on hexoses (in vitro). May be responsible for detoxification of reactive aldehydes in the digested food before the nutrients are passed on to other organs.[1]
Publication Abstract from PubMed
The antineoplastic target aldo-keto reductase family member 1B10 (AKR1B10) and the critical polyol pathway enzyme aldose reductase (AKR1B1) share high structural similarity. Crystal structures reported here reveal a surprising Trp112 native conformation stabilized by a specific Gln114-centered hydrogen bond network in the AKR1B10 holoenzyme, and suggest that AKR1B1 inhibitors could retain their binding affinities toward AKR1B10 by inducing Trp112 flip to result in an "AKR1B1-like" active site in AKR1B10, while selective AKR1B10 inhibitors can take advantage of the broader active site of AKR1B10 provided by the native Trp112 side-chain orientation.
Inhibitor selectivity between aldo-keto reductase superfamily members AKR1B10 and AKR1B1: Role of Trp112 (Trp111).,Zhang L, Zhang H, Zhao Y, Li Z, Chen S, Zhai J, Chen Y, Xie W, Wang Z, Li Q, Zheng X, Hu X FEBS Lett. 2013 Oct 4. pii: S0014-5793(13)00726-6. doi:, 10.1016/j.febslet.2013.09.031. PMID:24100137[2]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
- ↑ Gallego O, Ruiz FX, Ardevol A, Dominguez M, Alvarez R, de Lera AR, Rovira C, Farres J, Fita I, Pares X. Structural basis for the high all-trans-retinaldehyde reductase activity of the tumor marker AKR1B10. Proc Natl Acad Sci U S A. 2007 Dec 26;104(52):20764-9. Epub 2007 Dec 17. PMID:18087047
- ↑ Zhang L, Zhang H, Zhao Y, Li Z, Chen S, Zhai J, Chen Y, Xie W, Wang Z, Li Q, Zheng X, Hu X. Inhibitor selectivity between aldo-keto reductase superfamily members AKR1B10 and AKR1B1: Role of Trp112 (Trp111). FEBS Lett. 2013 Oct 4. pii: S0014-5793(13)00726-6. doi:, 10.1016/j.febslet.2013.09.031. PMID:24100137 doi:http://dx.doi.org/10.1016/j.febslet.2013.09.031
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