ID RNH2_META3 Reviewed; 277 AA.
AC A6UUM1;
DT 20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT 21-AUG-2007, sequence version 1.
DT 27-MAR-2024, entry version 88.
DE RecName: Full=Ribonuclease HII {ECO:0000255|HAMAP-Rule:MF_00052};
DE Short=RNase HII {ECO:0000255|HAMAP-Rule:MF_00052};
DE EC=3.1.26.4 {ECO:0000255|HAMAP-Rule:MF_00052};
GN Name=rnhB {ECO:0000255|HAMAP-Rule:MF_00052}; OrderedLocusNames=Maeo_0608;
OS Methanococcus aeolicus (strain ATCC BAA-1280 / DSM 17508 / OCM 812 /
OS Nankai-3).
OC Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC Methanococcaceae; Methanococcus.
OX NCBI_TaxID=419665;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-1280 / DSM 17508 / OCM 812 / Nankai-3;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Lykidis A.,
RA Sieprawska-Lupa M., Whitman W.B., Richardson P.;
RT "Complete sequence of Methanococcus aeolicus Nankai-3.";
RL Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC hybrids. {ECO:0000255|HAMAP-Rule:MF_00052}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00052};
CC Note=Manganese or magnesium. Binds 1 divalent metal ion per monomer in
CC the absence of substrate. May bind a second metal ion after substrate
CC binding. {ECO:0000255|HAMAP-Rule:MF_00052};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00052}.
CC -!- SIMILARITY: Belongs to the RNase HII family. {ECO:0000255|HAMAP-
CC Rule:MF_00052}.
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DR EMBL; CP000743; ABR56193.1; -; Genomic_DNA.
DR RefSeq; WP_011973325.1; NC_009635.1.
DR AlphaFoldDB; A6UUM1; -.
DR SMR; A6UUM1; -.
DR STRING; 419665.Maeo_0608; -.
DR GeneID; 75305678; -.
DR KEGG; mae:Maeo_0608; -.
DR eggNOG; arCOG04121; Archaea.
DR HOGENOM; CLU_036532_0_4_2; -.
DR OrthoDB; 33866at2157; -.
DR Proteomes; UP000001106; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0030145; F:manganese ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0003723; F:RNA binding; IEA:InterPro.
DR GO; GO:0004523; F:RNA-DNA hybrid ribonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006401; P:RNA catabolic process; IEA:UniProtKB-UniRule.
DR CDD; cd07180; RNase_HII_archaea_like; 1.
DR Gene3D; 3.30.420.10; Ribonuclease H-like superfamily/Ribonuclease H; 1.
DR Gene3D; 1.10.10.460; Ribonuclease hii. Domain 2; 1.
DR HAMAP; MF_00052_A; RNase_HII_A; 1.
DR InterPro; IPR004649; RNase_H2_suA.
DR InterPro; IPR001352; RNase_HII/HIII.
DR InterPro; IPR024567; RNase_HII/HIII_dom.
DR InterPro; IPR020787; RNase_HII_arc.
DR InterPro; IPR023160; RNase_HII_hlx-loop-hlx_cap_dom.
DR InterPro; IPR012337; RNaseH-like_sf.
DR InterPro; IPR036397; RNaseH_sf.
DR NCBIfam; TIGR00729; ribonuclease HII; 1.
DR PANTHER; PTHR10954; RIBONUCLEASE H2 SUBUNIT A; 1.
DR PANTHER; PTHR10954:SF7; RIBONUCLEASE H2 SUBUNIT A; 1.
DR Pfam; PF01351; RNase_HII; 1.
DR SUPFAM; SSF53098; Ribonuclease H-like; 1.
DR PROSITE; PS51975; RNASE_H_2; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Endonuclease; Hydrolase; Manganese; Metal-binding; Nuclease.
FT CHAIN 1..277
FT /note="Ribonuclease HII"
FT /id="PRO_0000334979"
FT DOMAIN 20..250
FT /note="RNase H type-2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT BINDING 26
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT BINDING 27
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT BINDING 141
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ SEQUENCE 277 AA; 32046 MW; A9F257FC658E65CD CRC64;
MNDNDNIDKD NIDTMNDNNK LIIGLDEAGR GPVLGPMVIA LVKIKGQDLK NFEKLDIKDS
KKHSKNRREE LFEMIINNYD VRYEILEAKT IDKLMNTINL NKIELMAFTK LINSVLKEEY
PNYKENSKIQ TATPQIEIYI DACSSNEKAF ANQIKSKLIV NDENNIKIIA EHKADENYKI
VSAASIIAKV IRDRKIEEYK KIYGEIGSGY PSDKITQKYL ANYVEKNREL PEIARKSWNT
SKKLLKKIED KNTVDKIKDS KRIKTNIELK QTKLVEF
//
