Molecular evolution of group II phospholipases A2

Tomohisa Ogawa, Masato Kitajima, Kinichi Nakashima, Yoshiyuki Sakaki, Motonori Ohno

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

The nucleotide sequences of 13 cDNAs encoding group II phospholipases A2 (PLA2S), which are from viperidae snake venoms and from mammalian sources, were aligned and analyzed by phylogenetic trees constructed using various components of the sequences. The evolutionary trees derived from the combined sequences of the untranslated (5′ and 3′) region and the signal peptide region of cDNAs were in accord with the consequences from taxonomy. In contrast, the evolutionary trees from the mature protein-coding region sequences of cDNAs and from the amino acid sequences showed random patterns. These observations indicated that the mature protein-coding region has evolved through a process differently from the untranslated and signal peptide regions. The trees built from the nucleotide differences at each of three positions of codons in the mature protein-coding region suggested that snakevenom-gland PLA2 genes have evolved via a process different from mammalian PLA2 genes. The occurrence of accelerated evolution has been recently discovered in Trimeresurus flavoviridis venom-gland group II PLA2 isozyme genes (Nakashima et al. 1993, Proc Natl Acad Sci USA 90:5964–5968), so the present phylogenetic analysis together with the estimation of nucleotide divergence of cDNAs provides further evidence that snakevenom-group II PLA2 isozyme genes have evolved by accelerated evolution to gain diverse physiological activities.

Original languageEnglish
Pages (from-to)867-877
Number of pages11
JournalJournal of Molecular Evolution
Volume41
Issue number6
DOIs
Publication statusPublished - Jan 1 1995

Fingerprint

Group II Phospholipases A2
phospholipase A2
Molecular Evolution
Complementary DNA
Open Reading Frames
open reading frames
venom
gene
venoms
Protein Sorting Signals
signal peptide
peptide
Isoenzymes
Genes
protein
Trimeresurus flavoviridis
isozymes
genes
Nucleotides
nucleotides

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

Cite this

Molecular evolution of group II phospholipases A2. / Ogawa, Tomohisa; Kitajima, Masato; Nakashima, Kinichi; Sakaki, Yoshiyuki; Ohno, Motonori.

In: Journal of Molecular Evolution, Vol. 41, No. 6, 01.01.1995, p. 867-877.

Research output: Contribution to journalArticle

Ogawa, Tomohisa ; Kitajima, Masato ; Nakashima, Kinichi ; Sakaki, Yoshiyuki ; Ohno, Motonori. / Molecular evolution of group II phospholipases A2. In: Journal of Molecular Evolution. 1995 ; Vol. 41, No. 6. pp. 867-877.
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