期刊
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
卷 3, 期 3, 页码 195-204出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.cbd.2008.05.002
关键词
mammals; amino acid sequence; genomics; carboxylesterase; CES5; drug detoxification
资金
- NIH [P01 HL028972]
- Research Facilities Improvement Program [1 C06 RR13556, 1 C06 RR15456, 1 C06 RR017515]
- [P51 RRO13986]
Carboxylesterase 5 (CES5) (also called cauxin or CES7) is one of at least five mammalian CES gene families encoding enzymes of broad substrate specificity and catalyzing hydrolytic and transesterification reactions. In silica methods were used to predict the amino acid sequences, secondary structures and gene locations for CES5 genes and gene products. Amino acid sequence alignments of mammalian CES5 enzymes enabled identification of key CES sequences previously reported for human CES1, as well as other sequences that are specific to the CES5 gene family, which were consistent with being monomeric in subunit structure and available for secretion into body fluids. Predicted secondary structures for mammalian CESS demonstrated significant conservation with human CES1 as well as distinctive mammalian CES5-like structures. Mammalian CES5 genes are located in tandem with the CES1 gene(s), are transcribed on the reverse strand and contained 13 exons. CES5 has been previously reported in high concentrations in the urine (cauxin) of adult male cats, and within a protein complex of mammalian male epididymal fluids. Role.; for CES5 may include regulating urinary levels of male cat pheromones; catalyzing lipid transfer reactions within mammalian male reproductive fluids; and protecting neural tissue from drugs and xenobiotics. (C) 2008 Elsevier Inc. All rights reserved.
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