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The primary structure of chicken muscle acylphosphatase isozyme Ch2

Journal of Biochemistry 102(5): 1221-1229
The primary structure of chicken muscle acylphosphatase isozyme Ch2
The amino acid sequence of one, Ch2, of the two isozymes of chicken muscle acylphosphatase was determined. It consists of 98 amino acid residues with N-acetylalanine at the amino(N)-terminus and contains no cysteine: Ac-Ala-Gly-Ser-Glu-Gly-Leu-Met-Ser-Val-Asp-Tyr-Glu-Val-Ser-Gly-Arg-Val-Gln-Gly-Val-Phe-Phe-Arg-Lys-Tyr-Thr-Gln-Ser-Glu-Ala-Lys-Arg-Leu-Gly-Leu-Val-Gly-Trp-Val-Arg-Asn-Thr-Ser-His-Gly-Thr-Val-Gln-Gly-Gln-Ala-Gln-Gly-Pro-Ala-Ala-Arg-Val-Arg-Glu-Leu-Gln-Glu-Trp-Leu-Arg-Lys-Ile-Gly-Ser-Pro-Gln-Ser-Arg-Ile-Ser-Arg-Ala-Glu-Phe-Thr-Asn-Glu-Lys-Glu-Ile-Ala-Ala-Leu-Glu-His-Thr-Asp-Phe-Gln-Ile-Arg-Lys-COOH. The sequence differs in 44% of the total positions from the other isozyme, Ch1. Comparison of the sequence and the predicted conformational profile of Ch2 with those of Ch1 suggests that they share a common evolutionary origin and appear to have retained similar conformations throughout their evolutionary origin and appear to have retained similar conformation throughout their evolutionary development.

Accession: 006740879

PMID: 2830254

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