Studies on interaction of oligoadenylates with proteins in vitro by MALDI-TOF mass spectrometry
Aim. To investigate the ability of «core» 2'-5'- and 3'-5'-oligoadenylates (OA) to interact with α-interferon – a key protein of the 2'- 5'-OAS/RNAase L system responsible for antiviral cell defense. Methods. MALDI-TOF mass spectrometry was used in the studies on protei...
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| Date: | 2013 |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Інститут молекулярної біології і генетики НАН України
2013
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| Series: | Вiopolymers and Cell |
| Subjects: | |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Studies on interaction of oligoadenylates with proteins in vitro by MALDI-TOF mass spectrometry / S.M. Levchenko, A.V. Rebriev, V.V. Tkachuk, L.V. Dubey, I.Ya. Dubey, Z.Yu. Tkachuk // Вiopolymers and Cell. — 2013. — Т. 29, №. 1. — С. 42-48. — Бібліогр.: 39 назв. — укр. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| Summary: | Aim. To investigate the ability of «core» 2'-5'- and 3'-5'-oligoadenylates (OA) to interact with α-interferon – a key protein of the 2'- 5'-OAS/RNAase L system responsible for antiviral cell defense. Methods. MALDI-TOF mass spectrometry was used in the studies on protein-ligand interactions. Results. It was shown that 2'-5'-A3 and its epoxy-modified analog 2'-5'-A3-epo can bind to α-interferon in vitro. 3'-5'-tri- adenylate is also capable of binding to this protein. One to five ligand molecules can bind simultaneously to the molecule of α-interferon. At the same time, all studied oligonucleotides do not bind to insulin. Conclusions. It was established that «core» 2'-5'- and 3'-5'-triadenylates are capable of multiple interaction with α-interferon to form stable complexes. However, they do not bind to insulin which is not involved in the 2'-5'-OAS/RNAase L system. |
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