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Updated: Aug 18, 2026
Enhanced Crosslinking Immunoprecipitation (eCLIP) Method for Efficient Identification of Protein-bound RNA in Mouse Testis
Published on: May 10, 2019
[Cloning and characterization of a novel rat gene RSD-7 differentially expressed in testis]
Xiao-dong Zhang1, Da-wei Gou, Shi-ying Miao
1State Key Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, CAMS, PUMC, Beijing 100005, China.
Objective:
To isolate and identify the differentially expressed genes in spermatogenesis for the understanding molecular mechanism of spermatogenesis.
Methods:
Screening of the cDNA library, Northern blot, expression and purification in E. coli with GST expression system, immunocytochemical staining of testis sections were used.
Results:
(1) A cDNA fragment designated as RSD-7 was isolated from rat testis cDNA library. It was 1,238 bp in length, coding a protein of 232 amino acids with the GenBank accession number AF315467. The encoding protein of RSD-7 cDNA had a Ubiquitin-like domain. (2) Northern blot indicated that RSD-7 was uniquely expressed in rat testis, and in the testis RSD-7 emerged on the 30th postnatal day and expressed until 120th postnatal day. (3) Expression and purification of RSD-7 protein in E. coli with GST expression system and were used to obtain anti-RSD-7 antibody. (4) Immunolocalization of RSD-7 in rat testis revealed that it is expressed only in Sertoli cells.
Conclusions:
Transcription pattern of RSD-7 and localization of RSD-7 protein in testis have been made, which established the base for the functional study of RSD-7.
