Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1999-11-5
pubmed:abstractText
The gene (HSD-1) coding a human sperm membrane protein (hSMP-1) was isolated from a human testis cDNA expression library using antibodies found in the serum of an infertile woman. HSD-1 was localized to a single locus on chromosome 9 and assigned to band 9p12-p13 by fluorescent in situ hybridization (FISH) mapping and DAPI (4,6-diamidino-2-phenylindole) banding, using rat/human somatic cell hybrids and metaphase chromosomes of human lymphocytes. In rescreening a testis lambdagt10 cDNA expression library, the full-length cDNA (HSD-1) and several truncated cDNAs with heterologous regions were isolated from positive clones. The heterology consisted of deletion, insertion and alteration of the 5'-end. These heterologous truncated fragments may be produced by alternative splicing of mRNAs. Two recombinant prokaryotic expression vectors were constructed with one of the heterologous fragment (clone #26) with and without the alternative 5'-end. Escherichia coli transfected with the construct containing the alternative 5'-end failed to produce the recombinant product, whereas those transfected with the vector lacking the 5'-end produced hSMP-1. DNASIS analysis of the structure of #26 mRNA suggests that the 5'-end has a stable secondary configuration that may maintain the mRNA in an inactivated state, whereby hindering its translation and preventing the expression of the gene.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:day
6
pubmed:volume
1447
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
119-24
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed-meshheading:10500252-Amino Acid Sequence, pubmed-meshheading:10500252-Antigens, Surface, pubmed-meshheading:10500252-Base Sequence, pubmed-meshheading:10500252-Chromosomes, Human, Pair 9, pubmed-meshheading:10500252-Consensus Sequence, pubmed-meshheading:10500252-DNA, Complementary, pubmed-meshheading:10500252-Escherichia coli, pubmed-meshheading:10500252-Gene Library, pubmed-meshheading:10500252-Humans, pubmed-meshheading:10500252-In Situ Hybridization, Fluorescence, pubmed-meshheading:10500252-Lymphocytes, pubmed-meshheading:10500252-Male, pubmed-meshheading:10500252-Membrane Proteins, pubmed-meshheading:10500252-Molecular Sequence Data, pubmed-meshheading:10500252-Nucleic Acid Conformation, pubmed-meshheading:10500252-RNA, Messenger, pubmed-meshheading:10500252-Testis, pubmed-meshheading:10500252-Transfection
pubmed:year
1999
pubmed:articleTitle
Assignment of chromosomal locus and evidence for alternatively spliced mRNAs of a human sperm membrane protein (hSMP-1).
pubmed:affiliation
National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Faculty of Basic Medicine, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, PR China.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't