Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
2005-4-11
pubmed:abstractText
Emerin is an integral protein of the inner nuclear membrane in the majority of differentiated vertebrate cells. In humans, deficiency of emerin causes a progressive muscular dystrophy of the Emery-Dreifuss type. The physiological role of emerin is poorly understood. By screening and sequencing of EST clones we have identified two emerin homologues in Xenopus laevis, Xemerin1 and Xemerin2. Xemerins share with mammalian emerins the N-terminal LEM domain and a single transmembrane domain at the C-terminus. As shown by immunoblot analysis with Xemerin-specific antibodies, both proteins have an apparent molecular mass of 24 kDa but differ in their isoelectric points. Xemerin1 and Xemerin2 proteins are not detectable in oocytes nor during early embryogenesis. Protein expression is first found at stage 43 and persists in somatic cells. However, RT-PCR and Northern blot analysis show Xemerin mRNAs of approximately 4.0 kb to be present in oocytes and throughout embryogenesis. During embryogenesis the level of Xemerin mRNAs increases at stage 22 and is particularly abundant in mesodermal and neuro-ectodermal regions of the embryo. These data provide the necessary background to further investigate the role of emerin in nuclear envelope assembly, gene expression and organ development of X. laevis as a model organism.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0171-9335
pubmed:author
pubmed:issnType
Print
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
295-309
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Emerin expression in early development of Xenopus laevis.
pubmed:affiliation
Department of Cell and Developmental Biology, University of Würzburg, Biozentrum, Am Hubland, D-97074 Würzburg, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't