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4HKQ

XMRV reverse transcriptase in complex with RNA/DNA hybrid

Summary for 4HKQ
Entry DOI10.2210/pdb4hkq/pdb
DescriptorReverse transcriptase/ribonuclease H p80, RNA (5'-R(*AP*AP*CP*AP*GP*AP*GP*UP*GP*CP*GP*AP*CP*AP*CP*CP*UP*GP*AP*UP*UP*CP*CP*AP*U)-3'), DNA (5'-D(*TP*GP*GP*AP*AP*TP*CP*A*GP*GP*TP*GP*TP*CP*GP*CP*AP*CP*TP*CP*TP*G)-3'), ... (4 entities in total)
Functional Keywordsprotein-dna-rna complex, reverse transcription, transcription-rna-dna complex, transcription/rna/dna
Biological sourceXenotropic MuLV-related virus (XMRV)
More
Cellular locationGag-Pol polyprotein: Host cell membrane; Lipid-anchor (Potential). Matrix protein p15: Virion (Potential). Capsid protein p30: Virion (Potential). Nucleocapsid protein p10: Virion (Potential): A1Z651
Total number of polymer chains3
Total formula weight90967.72
Authors
Nowak, E.,Potrzebowski, W.,Konarev, P.V.,Rausch, J.W.,Bona, M.K.,Svergun, D.I.,Bujnicki, J.M.,Le Grice, S.F.J.,Nowotny, M. (deposition date: 2012-10-15, release date: 2013-02-20, Last modification date: 2023-11-08)
Primary citationNowak, E.,Potrzebowski, W.,Konarev, P.V.,Rausch, J.W.,Bona, M.K.,Svergun, D.I.,Bujnicki, J.M.,Le Grice, S.F.,Nowotny, M.
Structural analysis of monomeric retroviral reverse transcriptase in complex with an RNA/DNA hybrid
Nucleic Acids Res., 41:3874-3887, 2013
Cited by
PubMed Abstract: A key step in proliferation of retroviruses is the conversion of their RNA genome to double-stranded DNA, a process catalysed by multifunctional reverse transcriptases (RTs). Dimeric and monomeric RTs have been described, the latter exemplified by the enzyme of Moloney murine leukaemia virus. However, structural information is lacking that describes the substrate binding mechanism for a monomeric RT. We report here the first crystal structure of a complex between an RNA/DNA hybrid substrate and polymerase-connection fragment of the single-subunit RT from xenotropic murine leukaemia virus-related virus, a close relative of Moloney murine leukaemia virus. A comparison with p66/p51 human immunodeficiency virus-1 RT shows that substrate binding around the polymerase active site is conserved but differs in the thumb and connection subdomains. Small-angle X-ray scattering was used to model full-length xenotropic murine leukaemia virus-related virus RT, demonstrating that its mobile RNase H domain becomes ordered in the presence of a substrate-a key difference between monomeric and dimeric RTs.
PubMed: 23382176
DOI: 10.1093/nar/gkt053
PDB entries with the same primary citation
Experimental method
X-RAY DIFFRACTION (3.04 Å)
Structure validation

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