PMID: 3967033Feb 4, 1985

Human seminal ribonuclease. A tool to check the role of basic charges and glycosylation of a ribonuclease in the action of the enzyme on double-stranded RNA

Biochimica Et Biophysica Acta
S SorrentinoM Libonati

Abstract

Human seminal ribonuclease (a basic protein occurring in a glycosylated and in a non-glycosylated form) is very active against double-stranded RNAs (De Prisco, R., Sorrentino, S., Leone, E. and Libonati, M. (1984) Biochim. Biophys. Acta 788, 356-363). The action of the two enzyme forms on single-stranded and double-stranded substrates was studied as a function of pH and ionic strength. Results indicate (1) that glycosylation of the RNAase molecule does not affect enzyme action on single-stranded RNAs, while (2) degradation of double-stranded RNAs is moderately increased by the presence of carbohydrates in the enzyme molecule. Human seminal RNAase shows a marked helix-destabilizing activity on poly(dA-dT) X poly(dA-dT). Under various conditions, this action (1) is definitely stronger than that of bovine RNAase A, and (2) seems to be less dependent on the glycosylation than on the basicity of the enzyme protein. The remarkable activity of human seminal RNAase on double-stranded RNA may, at least partly, be related to the enzyme properties mentioned above.

References

Jan 1, 1984·Analytical Biochemistry·J J BeintemaD G Glitz
Jun 26, 1981·Biochimica Et Biophysica Acta·R L KarpelM D Delahunty
Apr 14, 1981·Biochemistry·R H SugiyamaC A Dekker
Oct 1, 1963·Proceedings of the National Academy of Sciences of the United States of America·G FELSENFELDP H VONHIPPEL

Citations

Jun 2, 2006·Nucleic Acids Research·Nicoletta PotenzaAniello Russo
Aug 1, 2016·Journal of Photochemistry and Photobiology. B, Biology·Amit Kumar DindaSwagata Dasgupta
Feb 16, 2019·Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America·Keonte J GravesChristina A Muzny
Dec 17, 1997·Journal of Biomolecular Structure & Dynamics·G YakovlevM Libonati
Sep 11, 2003·The Journal of Biological Chemistry·Giovanni GotteDouglas V Laurents

Related Concepts

Neoglycoproteins
Hydrogen-Ion Concentration
Osmolality
Alkaline Ribonuclease
RNA, Double-Stranded
Seminal Plasma
Structure-Activity Relationship
Substrate Specificity

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