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Information on EC 3.1.13.2 - exoribonuclease H and Organism(s) Moloney murine leukemia virus and UniProt Accession P03355

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EC Tree
     3 Hydrolases
         3.1 Acting on ester bonds
             3.1.13 Exoribonucleases producing 5′-phosphomonoesters
                3.1.13.2 exoribonuclease H
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Moloney murine leukemia virus
UNIPROT: P03355 not found.
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The taxonomic range for the selected organisms is: Moloney murine leukemia virus
The enzyme appears in selected viruses and cellular organisms
Reaction Schemes
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid
Synonyms
rnase h, rnase h1, rnase hi, rnaseh, rt rnase h, hiv rnase h, t4 rnase h, rt/rnase h, lc11-rnase h1, retroviral rnase h, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
RNase H
retroviral reverse transcriptase RNaseH
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-
-
-
RNase H
additional information
-
the enzyme is part of the viral reverse transcriptase
REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
3'-end directed exonucleolytic cleavage of viral RNA-DNA hybrid
show the reaction diagram
REACTION TYPE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
hydrolysis of phosphoric ester
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-
-
-
CAS REGISTRY NUMBER
COMMENTARY hide
9050-76-4
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SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
DNA-RNA hybrid + H2O
?
show the reaction diagram
-
-
-
?
DNA-RNA hybrid + H2O
?
show the reaction diagram
DNA-RNA hybrid duplex + H2O
oligonucleotides terminated with 5'-phosphate and 3'-hydroxyl moiety
show the reaction diagram
DNA/DNA + H2O
?
show the reaction diagram
RNase H catalysis by the retroviral enzyme appears to involve a two-metal ion mechanism. Unlike cellular RNases H, the retroviral RNase H displays three different modes of cleavage: internal, 3'-end-DNA-directed, and 5'-end-RNA-directed, all three modes of cleavage appear to have essential roles in reverse transcription, overview, RNase H activities of murine retroviral reverse transcriptases preferentially cleave between two ribonucleotide residues in an RNA chain, and between the penultimate and last ribonucleotide of an extended RNA primer rather than precisely at the RNA-DNA junction
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-
?
HTS-1 RNA-DNA + H2O
?
show the reaction diagram
-
-
-
-
?
HTS-2 RNA-DNA + H2O
?
show the reaction diagram
-
-
-
-
?
RNA/DNA hybrid + H2O
?
show the reaction diagram
additional information
?
-
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
DNA-RNA hybrid + H2O
?
show the reaction diagram
-
-
-
?
DNA-RNA hybrid duplex + H2O
oligonucleotides terminated with 5'-phosphate and 3'-hydroxyl moiety
show the reaction diagram
RNA/DNA hybrid + H2O
?
show the reaction diagram
-
-
-
-
?
additional information
?
-
METALS and IONS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
INHIBITOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
Ca2+
competitive inhibitor
non-nucleotide or non-nucleoside reverse transcriptase inhibitor
targets the DNA polymerasec activity of reverse transcriptase. Non-competitive inhibitor that binds a hydrophobic pocket near the polymerase active site of the p66 subunit in HIV-1 reverse transcriptase
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nucleotide or nucleoside reverse transcriptase inhibitor
targets the DNA polymerasec activity of reverse transcriptase. NRTIs inhibit replication by competing with cellular dNTPs for incorporation into the nascent DNAchain; upon incorporation, the absence of a 3' hydroxyl group on the NRTI prevents additional synthesis and causes premature chain termination
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3'-azido-3'-deoxythymidine
a nucleoside analog RT inhibitor
4-[(4'-aminomethyl-1,1'-biphenyl)methyl]-1-hydroxy-1,8-naphthyridin-2-one
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potent inhibitor
7-(furan-2-yl)-2-hydroxy-isoquinoline-1,3(2H,4H)-dione
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-
beta-thujaplicinol
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-
non-nucleoside reverse transcriptase inhibitors
i.e. NNRTIs
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nucleoside analog RT inhibitors
i.e. NRTIs, nucleoside analog RT inhibitors are non-competitive inhibitors
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trihydroxybenzoylbiphenyl carboxylate hydrazone
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-
trihydroxybenzoylnaphthyl hydrazone
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-
additional information
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
additional information
additional information
-
TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
additional information
additional information
-
SPECIFIC ACTIVITY [µmol/min/mg]
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
44 - 50
Moloney murine leukemia virus reverse transcriptase shows a curve with the optimal temperature range of around 44-50°C
TEMPERATURE RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
80000
additional information
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
monomer
-
RNase H domain occupies the C-terminal of the protein
additional information
CRYSTALLIZATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
purified recombinant mutant Mo-MLV RNase H lacking the putative helix C complexed with the DNA/RNA hybrid substrate, DELTAC monomers and dimers, equilibration against a reservoir solution of 30% PEG 4000 and 0.2 M ammonium sulfate, protein solution, containing 7-10 mg/ml, 10 mM HEPES, pH 7.0, 150 mM NaCl, 5 mM DTT, and 0.1 mM EDTA, is mixed with reservoir solution at pH 5.2-6.0, DELTAC monomer crystallization fails to yield single, large crystals, DELTAC monomer crystals are soaked in 15% PEG 4000, 20% PEG 400, 0.1 M ammonium sulfate, 150 mM NaCl, 1% 2-propanol, 1.25% PEG MME 550, 5 mM MES, pH 6.5, and 0.5 mM zinc sulfate for 5 min, X-ray diffractions tructure determination and analysis at 1.6 A resolution, modelling
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PROTEIN VARIANTS
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
D224A
two Moloney murine leukemia virus reverse transcriptase variants (named MRT-D224A and MRT-D524A) as a negative control, in which the catalytically important residue for the reverse transcription activity, Asp224 and that for the RNase H activity, Asp524, are substituted with Ala, respectively
D524A
two Moloney murine leukemia virus reverse transcriptase variants (named MRT-D224A and MRT-D524A) as a negative control, in which the catalytically important residue for the reverse transcription activity, Asp224 and that for the RNase H activity, Asp524, are substituted with Ala, respectively
additional information
TEMPERATURE STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
additional information
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
GST column chromatography and gel filtration
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recombinant wild-type and mutant enzymes, containing a Factor Xa cleavage site and a GST-tag, from Escherichia coli strain BL21(DE3) by glutathione affinity chromatograpy and by cleavage through Factor Xa, followed by anion and cation exchang chromatography, and gel filtration
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CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli
expressed in Escherichia coli
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expression of wild-type and mutant enzymes, containing a Factor Xa cleavage site and a GST-tag, in Escherichia coli strain BL21(DE3)
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APPLICATION
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
drug development
reverse transcriptase is a primary target for antiretroviral therapy of HIV-1 infected patients. While the vast majority of anti-virals are specific for the polymerase domain, the RNaseH activity of reverse transcriptase represents an excellent target for antiretroviral drugs as well
drug development
RNase H is an anti-viral target
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Verma, I.M.
Studies on reverse transcriptase of RNA tumor viruses III. Properties of purified Moloney murine leukemia virus DNA polymerase and associated RNase H
J. Virol.
15
843-854
1975
Moloney murine leukemia virus, Moloney murine leukemia virus M-MuLV, More
Manually annotated by BRENDA team
Grandgenett, D.P.; Gerard, G.F.; Green, M.
Ribonuclease H: a ubiquitous activity in virions of ribonucleic acid tumor viruses
J. Virol.
10
1136-1142
1972
Avian myeloblastosis virus, feline leukemia virus, Harvey murine sarcoma virus, Mason-Pfizer monkey virus, Moloney murine leukemia virus, More, Rauscher leukemia virus, RD-feline leukemia virus, Rous sarcoma virus, Harvey murine sarcoma virus MSV-MLV(H)
Manually annotated by BRENDA team
Schultz, S.J.; Zhang, M.; Champoux, J.J.
Sequence, distance, and accessibility are determinants of 5'-end-directed cleavages by retroviral RNases H
J. Biol. Chem.
281
1943-1955
2006
Human immunodeficiency virus 1, Moloney murine leukemia virus
Manually annotated by BRENDA team
Schultz, S.J.; Zhang, M.; Champoux, J.J.
Recognition of internal cleavage sites by retroviral RNases H
J. Mol. Biol.
344
635-652
2004
Human immunodeficiency virus 1, Moloney murine leukemia virus
Manually annotated by BRENDA team
Lim, D.; Gregorio, G.G.; Bingman, C.; Martinez-Hackert, E.; Hendrickson, W.A.; Goff, S.P.
Crystal structure of the moloney murine leukemia virus RNase H domain
J. Virol.
80
8379-8389
2006
Moloney murine leukemia virus
Manually annotated by BRENDA team
Schultz, S.J.; Champoux, J.J.
RNase H activity: structure, specificity, and function in reverse transcription
Virus Res.
134
86-103
2008
Moloney murine leukemia virus, Moloney murine leukemia virus (P03355), Human immunodeficiency virus 1 (P03366), Human immunodeficiency virus 1
Manually annotated by BRENDA team
Champoux, J.J.; Schultz, S.J.
Ribonuclease H: properties, substrate specificity and roles in retroviral reverse transcription
FEBS J.
276
1506-1516
2009
Moloney murine leukemia virus, Avian sarcoma leukosis virus, Human immunodeficiency virus 1 (P03366)
Manually annotated by BRENDA team
Yasukawa, K.; Mizuno, M.; Inouye, K.
Characterization of Moloney murine leukaemia virus/avian myeloblastosis virus chimeric reverse transcriptases
J. Biochem.
145
315-324
2009
Avian myeloblastosis virus, Moloney murine leukemia virus (P03355), Moloney murine leukemia virus
Manually annotated by BRENDA team
Kirby, K.A.; Marchand, B.; Ong, Y.T.; Ndongwe, T.P.; Hachiya, A.; Michailidis, E.; Leslie, M.D.; Sietsema, D.V.; Fetterly, T.L.; Dorst, C.A.; Singh, K.; Wang, Z.; Parniak, M.A.; Sarafianos, S.G.
Structural and inhibition studies of the RNase H function of xenotropic murine leukemia virus-related virus reverse transcriptase
Antimicrob. Agents Chemother.
56
2048-2061
2012
Human immunodeficiency virus 1, Moloney murine leukemia virus, Xenotropic MuLV-related virus (A1Z651), Xenotropic MuLV-related virus
Manually annotated by BRENDA team
Babu, C.S.; Dudev, T.; Lim, C.
Differential role of the protein matrix on the binding of a catalytic aspartate to Mg2+ vs Ca2+: application to ribonuclease H
J. Am. Chem. Soc.
135
6541-6548
2013
Escherichia coli, Moloney murine leukemia virus (P03355)
Manually annotated by BRENDA team