User:ManVhv/Sandbox/EBOV Proteins
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The genome is non-segmented negative-sense RNA (nsnsRNA).
The gene order is 3′ – leader – NP – VP35 – VP40 – GP/sGP – VP30 – VP24 – L – trailer – 5′
- NP
- VP35
- VP40
- GP/sGP
- VP30
- VP24
- L - "Large" polymerase - complex with VP35 constitutes RNA-dependent RNA polymerase (RdRp)
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- Determined Nucletoide sequence of L encoding gene and 5' end of RNA.
- RNA has some folded structure, with self-complementary regions on 5' end, and 3' is complemetary to 5'.
- L protein has conserved amino acid sequences with other nsnsRNA viruses
- Conserved functionality is RNA-dependent RNA polymerase (RdRp)
- VSV L protein is catalyst for 5'-end capping
- VSV mRNA is capped with GDP instead of GTP
- VSV L caps mRNA via "RNA:GDP polyribonucleotidyltransferase activity, in which a 5'-monophosphorylated viral mRNA-start sequence is transferred to GDP generated from GTP via a covalent enzyme-RNA intermediate"
NP | VP35 | VP40 | GP/sGP | VP30 | VP24 | L | |
---|---|---|---|---|---|---|---|
NP | nucleocapsid | nucleocapsid | nucleocapsid | ||||
VP35 | RdRp | RdRp | |||||
VP40 | |||||||
GP/sGP | |||||||
VP30 | nucleocapsid | RdRp | |||||
VP24 | |||||||
L | |||||||
EBOV dsRNA | X | ||||||
EBOV mRNA | capping 5' with GDP | ||||||
NPC-1 | entry |