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Biochim Biophys Acta. 1985 Oct 18;831(3):330-4.

The active-site and amino-terminal amino acid sequence of bovine intestinal alkaline phosphatase.

Abstract

The active site of bovine intestinal alkaline phosphatase (orthophosphoric-monoester phosphohydrolase (alkaline optimum), EC 3.1.3.1) was labeled with [32P]Pi, a radioactive CNBr peptide was isolated and the amino acid sequence was determined. The sequence of the active-site peptide has limited homology (26%) with the active-site sequence of Escherichia coli alkaline phosphatase except for the ten residues immediately flanking the active-site serine (70%). A possible amino acid sequence deduced from the amino acid composition of an active-site tryptic peptide from human placental alkaline phosphatase is very similar to the bovine intestinal active-site sequence. The amino-terminal sequence of bovine intestinal alkaline phosphatase is homologous (69%) with the human placental enzyme but not with the E. coli phosphatase.

PMID:
3902089
DOI:
10.1016/0167-4838(85)90115-3
[Indexed for MEDLINE]

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