Biomaterial Database

RNA synthesis and poly(adenosine diphosphoribosyl) synthetase activity in developing mouse testis. 1982

A Momii, and S S Koide

RNA polymerase I and II and poly(ADP-ribosyl) synthetase activities were determined in isolated nuclei prepared from mouse testes at 1, 3, and 8 weeks after birth. RNA polymerase II and poly(ADP-ribosyl) synthetase activities increased with progression of spermatogenesis and age while RNA polymerase I activity decreased. The observed inverse relationship of RNA polymerase I and II parallels the shift in species of RNA, produced during spermatogenesis. Poly(ADP-ribosyl) synthetase activity increased with age, reaching a peak at 8 weeks. These enzymatic activities in aged mouse testis nuclei were equivalent to that of 8-week-old mice. Germ cells from the adult testis were separated by unit gravity velocity sedimentation. The enriched fractions containing pachytene and round spermatids possessed RNA polymerase and poly(ADP-ribosyl) synthetase activities. The present results suggest that transcriptional events during spermatogenesis may be modulated by changes in the activities of variants of RNA polymerase.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D009244	NAD+ Nucleosidase	An enzyme that catalyzes the hydrolysis of nicotinamide adenine dinucleotide (NAD) to NICOTINAMIDE and ADENOSINE DIPHOSPHATE RIBOSE. Some are extracellular (ectoenzymes).The enzyme from some sources also catalyses the hydrolysis of nicotinamide adenine dinucleotide phosphate (NADP).	DPNase,Diphosphopyridine Nucleotidase,NAD+ Glycohydrolase,NADase,Diphosphopyridine Nucleotidases,Ecto-NAD+ Glycohydrolase,NAD(P) Nucleosidase,NAD+ Nucleosidases,NAD-Glycohydrolase,NAD-Glycohydrolases,NADP Nucleosidase,NADP-Glycohydrolase,NADases,Ecto NAD+ Glycohydrolase,Glycohydrolase, Ecto-NAD+,Glycohydrolase, NAD+,NAD Glycohydrolase,NAD Glycohydrolases,NADP Glycohydrolase,Nucleosidase, NAD+,Nucleosidase, NADP,Nucleosidases, NAD+,Nucleotidase, Diphosphopyridine,Nucleotidases, Diphosphopyridine
D011065	Poly(ADP-ribose) Polymerases	Enzymes that catalyze the transfer of multiple ADP-RIBOSE groups from nicotinamide-adenine dinucleotide (NAD) onto protein targets, thus building up a linear or branched homopolymer of repeating ADP-ribose units i.e., POLY ADENOSINE DIPHOSPHATE RIBOSE.	ADP-Ribosyltransferase (Polymerizing),Poly ADP Ribose Polymerase,Poly(ADP-Ribose) Synthase,Poly(ADP-ribose) Polymerase,PARP Polymerase,Poly ADP Ribose Transferase,Poly ADP-Ribose Synthase,Poly(ADP-Ribose) Transferase,Poly(ADPR) Polymerase,Poly(ADPribose) Polymerase,Poly ADP Ribose Synthase,Polymerase, PARP,Synthase, Poly ADP-Ribose
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D012313	RNA	A polynucleotide consisting essentially of chains with a repeating backbone of phosphate and ribose units to which nitrogenous bases are attached. RNA is unique among biological macromolecules in that it can encode genetic information, serve as an abundant structural component of cells, and also possesses catalytic activity. (Rieger et al., Glossary of Genetics: Classical and Molecular, 5th ed)	RNA, Non-Polyadenylated,Ribonucleic Acid,Gene Products, RNA,Non-Polyadenylated RNA,Acid, Ribonucleic,Non Polyadenylated RNA,RNA Gene Products,RNA, Non Polyadenylated
D012321	DNA-Directed RNA Polymerases	Enzymes that catalyze DNA template-directed extension of the 3'-end of an RNA strand one nucleotide at a time. They can initiate a chain de novo. In eukaryotes, three forms of the enzyme have been distinguished on the basis of sensitivity to alpha-amanitin, and the type of RNA synthesized. (From Enzyme Nomenclature, 1992).	DNA-Dependent RNA Polymerases,RNA Polymerases,Transcriptases,DNA-Directed RNA Polymerase,RNA Polymerase,Transcriptase,DNA Dependent RNA Polymerases,DNA Directed RNA Polymerase,DNA Directed RNA Polymerases,Polymerase, DNA-Directed RNA,Polymerase, RNA,Polymerases, DNA-Dependent RNA,Polymerases, DNA-Directed RNA,Polymerases, RNA,RNA Polymerase, DNA-Directed,RNA Polymerases, DNA-Dependent,RNA Polymerases, DNA-Directed
D013091	Spermatogenesis	The process of germ cell development in the male from the primordial germ cells, through SPERMATOGONIA; SPERMATOCYTES; SPERMATIDS; to the mature haploid SPERMATOZOA.	Spermatocytogenesis,Spermiogenesis
D013737	Testis	The male gonad containing two functional parts: the SEMINIFEROUS TUBULES for the production and transport of male germ cells (SPERMATOGENESIS) and the interstitial compartment containing LEYDIG CELLS that produce ANDROGENS.	Testicles,Testes,Testicle
D051379	Mice	The common name for the genus Mus.	Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus

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