Isolation and Structural Organization of the Neurospora Crassa Copper Metallothionein Gene

Overview

Journal EMBO J

Specialties Biotechnology
Molecular Biology

Date 1985 Oct 1

PMID 2932331

Citations 22

Authors

K Munger

U A Germann

K Lerch

Affiliations

Soon will be listed here.

Abstract

The Neurospora crassa copper metallothionein gene was cloned and its complete nucleotide sequence is reported. Enriched metallothionein mRNA was used as a template for cDNA synthesis, primed by a metallothionein-specific, synthetic undecanucleotide. The sequence of the cDNA obtained allowed the synthesis of a unique 21-mer which was used to screen a genomic DNA library of N. crassa. In agreement with the published amino acid sequence, the gene codes for a polypeptide 26 amino acid residues in length. The coding region is interrupted by a small intron (94 nucleotides). The gene structure is compared with those of mammalian metallothioneins. In both cases, the coding regions are split by introns, the intron-exon boundaries, however, are in different positions. The neurospora copper metallothionein gene is, to our knowledge, the smallest gene interrupted by an intron isolated so far.

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