Products of two common alleles at the locus for human placental alkaline phosphatase differ by seven amino acids.
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Henthorn PS, Knoll BJ, Raducha M, Rothblum KN, Slaughter C, Weiss M, Lafferty MA, Fischer T, Harris H
Products of two common alleles at the locus for human placental alkaline phosphatase differ by seven amino acids.
Proc Natl Acad Sci U S A. 1986 Aug;83(15):5597-601.
- PubMed ID
- 3461452 [ View in PubMed]
- Abstract
Amino-terminal amino acid sequences (42 residues) were determined for the products of the three common alleles at the human placental alkaline phosphatase [orthophosphoric-monoester phosphohydrolase (alkaline optimum), EC 3.1.3.1] gene locus. The sequences differ at position 3, which is proline in types 1 and 2 but is leucine in type 3. cDNA libraries were constructed in phage lambda gt11 and used to isolate clones covering the coding regions of types 1 and 3 cDNAs. Comparison of the deduced amino acid sequences of the types 1 and 3 proteins showed 7 differences out of 513 amino acids, each due to a single base substitution. cDNA sequence comparisons showed three silent substitutions in the coding regions and three base differences in the greater than 1 kilobase pairs of 3' untranslated sequences.