## Abstract In most mammalian species the aromatase is encoded by a single gene (__cyp19__), which contains 18 exons, 9 of them being translated. In adult rats, together with Leydig cells germ cells represent an additional source of estrogens. The amount of P450arom transcript is threefold higher i
Phytoagglutinins and Mammalian Sperm Penetration
โ Scribed by A., C. R.
- Book ID
- 109684762
- Publisher
- Nature Publishing Group
- Year
- 1973
- Tongue
- English
- Weight
- 116 KB
- Volume
- 241
- Category
- Article
- ISSN
- 0028-0836
- DOI
- 10.1038/241237a0
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
## Abstract An actinโlike substance has been detected in the postโacrosomal region of mammalian spermatozoa by indirect immunofluorescence. The antigen was localized using an antiโactin antiserum from a patient with active chronic hepatitis. The actinโlike contractile proteins may be important in s
## Abstract Times of sperm entry into the oviduct from the uterus, into the ampulla from the isthmus; of sperm penetration into oocytes, and of cleavage, were determined using three mating regions. Time intervals and their errors of estimation were calculated. Spermatozoa were first found in the is
Boar seminal plasma was separated into five protein fractions (I-V) (> 100, 55, 45, 30, 5-15 kDa) by gel chromatography on Sephadex G-75 SF at pH 7.2. RP-HPLC of protein fractions I-V and N-terminal sequencing of their individual components revealed that the high-molecular-weight aggregates consiste