RGD Reference Report - Cloning and characterization of a testis-specific thymosin beta 10 cDNA. Expression in post-meiotic male germ cells. - Rat Genome Database

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Cloning and characterization of a testis-specific thymosin beta 10 cDNA. Expression in post-meiotic male germ cells.

Authors: Lin, SC  Morrison-Bogorad, M 
Citation: Lin SC and Morrison-Bogorad M, J Biol Chem 1991 Dec 5;266(34):23347-53.
RGD ID: 729947
Pubmed: PMID:1744129   (View Abstract at PubMed)

Thymosin beta 10 is one of a small family of proteins closely related in sequence to thymosin beta 4, recently identified as an actin-sequestering protein. A single molecular weight species of thymosin beta 10 mRNA is present in a number of rat tissues. In adult rat testis, an additional thymosin beta 10 mRNA of higher molecular weight was identified. Nucleotide sequencing of cDNA clones complementary to the testis-specific thymosin mRNA indicated that this mRNA differed from the ubiquitous thymosin beta 10 mRNA only in its 5'-untranslated region, beginning 14 nucleotides upstream of the translation initiation codon. These results, together with primer extension experiments, suggest that the two thymosin beta 10 mRNAs are transcribed from the same gene through a combination of differential promoter utilization and alternative splicing. The novel thymosin beta 10 mRNA could be detected only in RNA isolated from sexually mature rat testis. Both mRNAs were present in pachytene spermatocytes; only the testis-specific mRNA was detected in postmeiotic haploid spermatids. Immunoblot analysis using specific antibodies showed that the thymosin beta 10 protein synthesized in adult testis was identical in size to that synthesized in brain. Immunohistochemical analysis showed that the protein was present in differentiating spermatids, suggesting that the testis-specific thymosin beta 10 mRNA is translated in haploid male germ cells.



Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Tmsb10Ratactin cytoskeleton organization  TAS  RGD 
Tmsb10Ratspermatid development involved_inTAS PMID:1744129PINC 

Molecular Function

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
Tmsb10Ratactin monomer binding  TAS  RGD 

Objects Annotated

Genes (Rattus norvegicus)
Tmsb10  (thymosin, beta 10)

Objects referenced in this article
Gene Tmsb10-ps6 thymosin, beta 10, pseudogene 6 Rattus norvegicus

Additional Information