Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
2001-6-22
pubmed:abstractText
RBMX and RBMY are members of an ancient pair of genes located on the sex chromosomes that encode RNA-binding proteins involved in splicing. These genes have differentiated and evolved separately on the X and Y Chromosomes. RBMY has acquired a testis-specific function, whereas, as shown here, RBMX is ubiquitously expressed and is subject to X inactivation. We have also found that multiple processed copies of RBMX are present in the human genome. RBMX-like sequences (RBMXLs) located on human Chrs 1, 4, 6, 9 (9p13 and 9p24), 11, 20, and X lack introns and thus probably result from retroposition events. We found RBMXLs to be conserved in primates and great apes at corresponding chromosomal locations, indicating that they arose prior to the divergence of human. Some of the RBMXLs show insertions, deletions, and stop codons, which would probably result in nonfunctional proteins. The RBMXL on Chr 20 is deleted in some individuals. Two of the largely intact RBMXLs, located on Chrs 1 and 9p13, are expressed in different tissues and may encode novel proteins involved in splicing in a tissue-specific manner. The RBMXL located at 9p13 is specifically expressed in testis, and to a lesser extent in brain, and may therefore play a role in testis function. This autosomal, testis-specific copy of RBMX could potentially compensate for RBMX that is presumably inactivated in male germ cells, in a manner analogous to autosomal retroposed copies of other X-linked genes.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0938-8990
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
538-45
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed-meshheading:11420617-Amino Acid Sequence, pubmed-meshheading:11420617-Chromosome Mapping, pubmed-meshheading:11420617-DNA Primers, pubmed-meshheading:11420617-Humans, pubmed-meshheading:11420617-Hybrid Cells, pubmed-meshheading:11420617-In Situ Hybridization, Fluorescence, pubmed-meshheading:11420617-Male, pubmed-meshheading:11420617-Molecular Sequence Data, pubmed-meshheading:11420617-Nuclear Proteins, pubmed-meshheading:11420617-Phylogeny, pubmed-meshheading:11420617-Polymerase Chain Reaction, pubmed-meshheading:11420617-RNA Splicing, pubmed-meshheading:11420617-RNA-Binding Proteins, pubmed-meshheading:11420617-Retroelements, pubmed-meshheading:11420617-Sequence Homology, Amino Acid, pubmed-meshheading:11420617-Spermatogenesis, pubmed-meshheading:11420617-Testis, pubmed-meshheading:11420617-X Chromosome
pubmed:year
2001
pubmed:articleTitle
Expression and conservation of processed copies of the RBMX gene.
pubmed:affiliation
Department of Pathology, BOX 357470, University of Washington, Seattle, Washington 98195-7470, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't