Extreme divergence of a novel wheat thionin generated by a mutational burst specifically affecting the mature protein domain of the precursor

Castagnaro, Atilio and Maraña, Carmen and Carbonero Zalduegui, Pilar and García Olmedo, Francisco (1992). Extreme divergence of a novel wheat thionin generated by a mutational burst specifically affecting the mature protein domain of the precursor. "Journal of Molecular Biology", v. 224 (n. 4); pp. 1003-1009. ISSN 0022-2836. https://doi.org/10.1016/0022-2836(92)90465-V.

Description

Title: Extreme divergence of a novel wheat thionin generated by a mutational burst specifically affecting the mature protein domain of the precursor
Author/s:
  • Castagnaro, Atilio
  • Maraña, Carmen
  • Carbonero Zalduegui, Pilar
  • García Olmedo, Francisco
Item Type: Article
Título de Revista/Publicación: Journal of Molecular Biology
Date: April 1992
ISSN: 0022-2836
Volume: 224
Subjects:
Faculty: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Department: Biotecnologia [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

A new type of neutral thionin (type V), specifically expressed in developing wheat endosperm, has been found to be encoded by a set of single-copy genes located in the long arms of chromosomes 1A, 1B and 1D, within less than 10,000 base-pairs of those corresponding to the highly basic type-I thionins. Divergence between types I and V has occurred through a process of accelerated evolution that has affected the amino acid sequence of the mature thionin but not the precursor domains corresponding to the N-terminal signal peptide and the long C-terminal acidic peptide. This process involved a deletion and a non-synonymous nucleotide substitution rate equal to the synonymous rate in the thionin sequence.

More information

Item ID: 6038
DC Identifier: http://oa.upm.es/6038/
OAI Identifier: oai:oa.upm.es:6038
DOI: 10.1016/0022-2836(92)90465-V
Official URL: http://www.sciencedirect.com/science/article/pii/002228369290465V
Deposited by: Memoria Investigacion
Deposited on: 16 Feb 2011 12:49
Last Modified: 27 Nov 2015 09:52
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