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Genome Biol. 2002;3(1):REVIEWS1001. Epub 2001 Dec 14.

Evolution of the initiating enzymes of the complement system.

Author information

  • 1Department of Biological Sciences, Graduate School of Science, University of Tokyo, Hongo, Tokyo 113-0033, Japan. mnonaka@biol.s.u-tokyo.ac.jp

Abstract

Analysis of the human MASP-1/3 gene, which encodes two proteases of the lectin-triggered complement cascade, has revealed alternatively used serine-protease-encoding regions for the gene's two protein products. Phylogenetic studies indicate that one arose by retrotransposition early in vertebrate evolution, supporting the idea that the lectin branch of the complement cascade arose earlier than the 'classical' pathway.

PMID:
11806831
[PubMed - indexed for MEDLINE]
PMCID:
PMC150455
Free PMC Article

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