CDNA cloning of human calpastatin: Sequence homology among human, pig, and rabbit calpastatins

Kiyozo Asada, Yoshizumi Ishino, Masamitsu Shimada, Tomoko Shimojo, Masahiro Endo, Fusao Kimizuka, Ikunoshin Kato, Masatoshi Maki, Masakazu Hatanaka, Takashi Murachi

Research output: Contribution to journalArticlepeer-review

62 Citations (Scopus)


cDNA of human calpastatin, an inhibitor protein specific for calpain (EC3.4.22.17; Ca2+-dependent cysteine proteinase) was isolated by screening of a library prepared from human liver mRNA with pig calpastatin cDNA fragment as a probe. The primary stnkture of human calpastatin was deduced from the nucleotide sequence of the cDNA and compared with that of pig and rabbit calpastatins already reported. Human calpastatin consisted of 673 amino acid residues and had 78% and 77% indentity to pig or rabbit calpastatins. respectively. Human calpastatin had a domain structure with four internally repetitive sequences and one N-terminal non-homologous sequence like the other calpastatins. Human calpastatin had two deletions, 22 and 13 residues long in domain L and domain 1, respectively, compared to pig or rabbit calpastatins.

Original languageEnglish
Pages (from-to)49-56
Number of pages8
JournalJournal of Enzyme Inhibition and Medicinal Chemistry
Issue number1
Publication statusPublished - 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Pharmacology
  • Drug Discovery


Dive into the research topics of 'CDNA cloning of human calpastatin: Sequence homology among human, pig, and rabbit calpastatins'. Together they form a unique fingerprint.

Cite this