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PKB-number: PKB61
Definition: Pseudoknot PK2 of the upstream pseudoknot domain (UPD2) of the 3'-UTR of odontoglossum ringspot virus, Singapore isolate
Organism: odontoglossum ringspot virus
Abbreviation: ORSV-S1_UPD2-PK2
RNA type: Viral 3 UTR
Keywords: tobamovirus; translational regulation
EMBL number: U34586
Submitted by: A.P.Gultyaev (
Supported by: Sequence comparison
References: [1] Chng C.G. et al. (1996). Gene 171:155-161.
[2] Gultyaev A.P. et al. (1994). J.Gen.Virol. 75:2851-2856.
Comment: The 3'-UTR of ORSV RNA contains three (slightly different) upstream pseudoknot domains (UPD1, UPD2 and UPD3, numbered from the 3'end). The UPD2 includes only PK2 and PK3; there is no homologue of PK1 (present in the UPD3).
Stem sizes:
Loop sizes:
3 6
1 0 3
Position Paired:
6340-6342; 6350-6352
6344-6349; 6356-6361
Bracket view of structure:
         6340      6350      6360
     #      |123456789|123456789|1
     % 6340 (((:[[[[[[))):::]]]]]]

© final design and maintenance: F.H.D.(Eke) van Batenburg; 1999-5-27 PKB00061.html