Dedicated to Professor Adolf Neckel on the occasion of his 60th birthday.
Nucleotide sequence of the Saccharomyces cerevisiae CTT1 gene and deduced amino-acid sequence of yeast catalase T
Article first published online: 3 MAR 2005
European Journal of Biochemistry
Volume 160, Issue 3, pages 487–490, November 1986
How to Cite
HARTIG, A. and RUIS, H. (1986), Nucleotide sequence of the Saccharomyces cerevisiae CTT1 gene and deduced amino-acid sequence of yeast catalase T. European Journal of Biochemistry, 160: 487–490. doi: 10.1111/j.1432-1033.1986.tb10065.x
- Issue published online: 3 MAR 2005
- Article first published online: 3 MAR 2005
- (Received June 26, 1986) – EJB 86 0685
A 2642-base-pair DNA fragment containing the catalase T (CTT1) structural gene of the yeast Saccharomyces cerevisiae and its flanking regions has been sequenced. The gene codes for a protein of 562 amino acids (relative molecular mass 64,449) and appears to contain no intron. The amino acid sequence of catalase T derived from the DNA sequence shows 40.7% homology (52.2% including conservative replacements) to that of bovine liver catalase. All amino acids previously postulated to participate directly in catalysis by liver catalase and most of the amino acids of the immediate environment of hemin, the prosthetic group of catalase, are conserved in catalase T. The data obtained indicate that the folding of polypeptide chains of the two catalases compared has been conserved within a central region consisting mainly of the β-barrel domain, which bears the prosthetic group, and a major part of the “wrapping domain”. N- and C-terminal regions involved in subunit interactions are less well conserved. It is suggested that their structure is more similar to that of the corresponding regions of Penicillium vitale catalase. However, catalase T lacks the C-terminal flavodoxin-like domain present in this protein.