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Biochem Biophys Res Commun. 1998 Feb 13;243(2):561-5.

Cloning of a novel human testis mRNA specifically expressed in testicular haploid germ cells, having unique palindromic sequences and encoding a leucine zipper dimerization motif.

Author information

1
Genes and Proteins Laboratory, National Institute of Immunology, Aruna Asaf Ali Marg, New Delhi, India.

Abstract

A novel gene coding for a human sperm surface protein (HSS) has been cloned from a human testis cDNA library. The 2.5 kb cDNA (hss) contains five direct repeats, three mirror repeats, three possible stem loop structures and three unique palindromic motifs located at functionally relevant positions. Open reading frame encodes a protein of 766 amino acids. The deduced protein analysis revealed a NH2 terminus extracellular domain having a leucine zipper (LZ) motif, a transmembrane helical domain and a cytoplasmic domain at the COOH terminus. Tissue specific expression studies demonstrated the presence of hss transcript only in testis. Cell type expression of hss mRNA was observed only on the round spermatids suggesting haploid germ cell expression.

PMID:
9480848
DOI:
10.1006/bbrc.1997.7943
[Indexed for MEDLINE]
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