Journal
DNA RESEARCH
Volume 15, Issue 3, Pages 115-122Publisher
OXFORD UNIV PRESS
DOI: 10.1093/dnares/dsn005
Keywords
human epididymis cDNA library; transcriptomes for human epididymis; sperm maturation
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Funding
- Shandong Province Science & Technology Key Program [032050102]
- 973 Program [2006CB504002, 2006CB944002]
- National Natural Sciences Foundation of China [30230190]
- Shanghai Science and Technology Funding [05DZ22103]
- CAS Knowledge Creative Program [KSCX1-YW-R-54]
- State 863 High Technology R & D project of China [2004AA221120]
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Mammalian Gene Collection (MGC) verified over 9000 human full-ORF genes and FLJ Program reported 21 243 cDNAs of which 14 409 were unique ones and 5416 seemed to be protein-coding. The pity is that epididymis cDNA library was missing in their sequencing target list. Epididymis is a very important male accessory sex organ for sperm maturation and storage. Fully differentiated spermatozoa left from testis acquire their motility and capacity for fertilization via interactions with the epididymal epithelium duct lumen during passage through this convoluted duct. Here, we report that 20 000 clones from a healthy male epididymis cDNA library have been sequenced. The sequencing data provided 8234 known sequences and 650 unknown cDNA fragments. Hundred and six of 650 unknown cDNA clone inserts were randomly selected for fully sequencing. There were 2 5 unknown unique sequences and 19 released but unreported sequences came out. By northern blot analysis, four sequences randomly selected from the 19 released sequences with no known function showed positive mRNA signals in epididymis and testis. The signals for three of six from those unknown group showed as epididymis abundant in a region-specific manner but not in the testis and other tissues tested. All the sequencing data will be available on the website www.sdscli.com.
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