NDLI: Characterization of a putative murine mitochondrial transporter homology of hMRS3/4

Content Provider	Springer Nature Link
Author	Li, Fang Yuan Leibiger, Barbara Leibiger, Ingo Larsson, Catharina
Copyright Year	2002
Abstract	We report here a novel murine gene, Mrs3/4, encoding a putative mitochondrial transporter homologous to the yeast mitochondrial RNA splicing protein 3 and 4 (yMRS3&4) and its human counterpart hMRS3/4. By analyses of radiation hybrids, Mrs3/4 was mapped to mouse Chromosome (Chr) 19 between D19Mit66 and D19Mit24 with a distance of 22.4 cR to D19Mit66, a region that is syntenic to human Chromosome 10q24, where the human gene is located. Structural analysis shows that these proteins belong to the mitochondrial carrier family (MCF), which is characterized by three repeats with two transmembrane domains in each repeat. The murine Mrs3/4 gene has two splicing forms similar to the human homolog. The long form corresponds to the 341-amino acid (aa) protein with six transmembrane domains, and the short form corresponds to the 177-aa protein with three transmembrane domains. Both forms have well-conserved signature sequences of MCF. Targeting experiments showed that both forms have mitochondrial localization. Northern blot analyses showed that Mrs3/4 is ubiquitously expressed as a 1.8-kb transcript with a relative abundance in the heart, liver, kidney, and testis. In conclusion, the reported Mrs3/4 gene shows a strong conservation, mitochondrial protein localization, and a ubiquitous expression, which suggests that it has an important role in mammalian cells, most likely as an ion transporter across the mitochondrial inner membrane.
Starting Page	20
Ending Page	23
Page Count	4
File Format	PDF
ISSN	09388990
Journal	Mammalian Genome
Volume Number	13
Issue Number	1
e-ISSN	14321777
Language	English
Publisher	Springer-Verlag
Publisher Date	2014-02-19
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cell Biology Anatomy Zoology
Content Type	Text
Resource Type	Article
Subject	Genetics

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