Reference: Goyon C, et al. (1988) Molecular cloning and characterization of the met2 gene from Ascobolus immersus. Gene 63(2):297-308

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Abstract


We have cloned the met2 gene from Ascobolus immersus by heterologous hybridization with the MET2 gene of Saccharomyces cerevisiae. This gene codes for the homoserine O-transacetylase, one of the methionine biosynthetic enzymes. The complete nucleotide sequence of a 2910-bp DNA fragment carrying the met2 gene has been determined. The gene contains a 165-bp intron which is similar in structure to other fungal introns. The deduced amino acid (aa) sequence (518 aa residues; Mr of 57726) shows three domains with a significant level of homology with the corresponding yeast protein. Northern-blot analysis reveals at least two transcripts (2.4 and 2.1 kb) probably due to transcription termination heterogeneity, as suggested by S1-mapping experiments. Polymorphism has been observed in the met2 gene flanking regions of Ascobolus strains from two different stocks.

Reference Type
Comparative Study | Journal Article | Research Support, Non-U.S. Gov't
Authors
Goyon C, Faugeron G, Rossignol JL
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