Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Comparative Study
. 1994 Jan;13(1):9-13.
doi: 10.1007/BF01891987.

Abalone myoglobins evolved from indoleamine dioxygenase: the cDNA-derived amino acid sequence of myoglobin from Nordotis madaka

Affiliations
Comparative Study

Abalone myoglobins evolved from indoleamine dioxygenase: the cDNA-derived amino acid sequence of myoglobin from Nordotis madaka

T Suzuki. J Protein Chem. 1994 Jan.

Abstract

The cDNA for the unusual 41 kD myoglobin of the abalone Nordotis madaka was amplified by polymerase chain reaction (PCR), and the cDNA-derived amino acid sequence of 378 residues was determined. As with the myoglobin of the related abalone Sulculus diversicolor (Suzuki and Takagi, J. Mol. Biol. 228, 698-700, 1992), the sequence of Nordotis myoglobin showed no significant homology with any other globins, but showed high homology (35% identity) with vertebrate indoleamine 2,3-dioxygenase, a tryptophan degrading enzyme containing heme. The amino acid sequence homology between Nordotis and Sulculus myoglobins was 87%. These results support our previous idea that the abalone myoglobins evolved from a gene for indoleamine dioxygenase, but not from a globin gene, and therefore all of the hemoglobins ard myoglobins are not homologous. Thus, abalone myoglobins appear to be a typical case of convergent evolution.

PubMed Disclaimer

Similar articles

Cited by

References

    1. J Mol Biol. 1992 Nov 20;228(2):698-700 - PubMed
    1. Nature. 1981 Jul 2;292(5818):81-2 - PubMed
    1. Nature. 1987 Oct 29-Nov 4;329(6142):858-60 - PubMed
    1. J Mol Evol. 1987;25(4):351-60 - PubMed
    1. Nucleic Acids Res. 1990 Jan 25;18(2):367 - PubMed

Publication types

Associated data

LinkOut - more resources