ID RNH2_METTH Reviewed; 206 AA.
AC O27102;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 01-JAN-1998, sequence version 1.
DT 27-MAR-2024, entry version 127.
DE RecName: Full=Ribonuclease HII;
DE Short=RNase HII;
DE EC=3.1.26.4;
GN Name=rnhB; OrderedLocusNames=MTH_1023;
OS Methanothermobacter thermautotrophicus (strain ATCC 29096 / DSM 1053 / JCM
OS 10044 / NBRC 100330 / Delta H) (Methanobacterium thermoautotrophicum).
OC Archaea; Euryarchaeota; Methanomada group; Methanobacteria;
OC Methanobacteriales; Methanobacteriaceae; Methanothermobacter.
OX NCBI_TaxID=187420;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29096 / DSM 1053 / JCM 10044 / NBRC 100330 / Delta H;
RX PubMed=9371463; DOI=10.1128/jb.179.22.7135-7155.1997;
RA Smith D.R., Doucette-Stamm L.A., Deloughery C., Lee H.-M., Dubois J.,
RA Aldredge T., Bashirzadeh R., Blakely D., Cook R., Gilbert K., Harrison D.,
RA Hoang L., Keagle P., Lumm W., Pothier B., Qiu D., Spadafora R., Vicare R.,
RA Wang Y., Wierzbowski J., Gibson R., Jiwani N., Caruso A., Bush D.,
RA Safer H., Patwell D., Prabhakar S., McDougall S., Shimer G., Goyal A.,
RA Pietrovski S., Church G.M., Daniels C.J., Mao J.-I., Rice P., Noelling J.,
RA Reeve J.N.;
RT "Complete genome sequence of Methanobacterium thermoautotrophicum deltaH:
RT functional analysis and comparative genomics.";
RL J. Bacteriol. 179:7135-7155(1997).
CC -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC hybrids. {ECO:0000250}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC -!- COFACTOR:
CC Name=Mn(2+); Xref=ChEBI:CHEBI:29035; Evidence={ECO:0000250};
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
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:0000250};
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the RNase HII family. {ECO:0000305}.
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DR EMBL; AE000666; AAB85519.1; -; Genomic_DNA.
DR PIR; E69003; E69003.
DR RefSeq; WP_010876654.1; NC_000916.1.
DR AlphaFoldDB; O27102; -.
DR SMR; O27102; -.
DR STRING; 187420.MTH_1023; -.
DR PaxDb; 187420-MTH_1023; -.
DR EnsemblBacteria; AAB85519; AAB85519; MTH_1023.
DR GeneID; 1471431; -.
DR KEGG; mth:MTH_1023; -.
DR PATRIC; fig|187420.15.peg.1006; -.
DR HOGENOM; CLU_036532_0_4_2; -.
DR InParanoid; O27102; -.
DR Proteomes; UP000005223; 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;
KW Reference proteome.
FT CHAIN 1..206
FT /note="Ribonuclease HII"
FT /id="PRO_0000111666"
FT DOMAIN 1..206
FT /note="RNase H type-2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT BINDING 7
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
FT BINDING 8
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
FT BINDING 105
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000250"
SQ SEQUENCE 206 AA; 23643 MW; 203DB7227BA735B5 CRC64;
MKVLGIDEAG RGPVIGPLVV AGVMIPERKF SILRKMGVKD SKKLTPERRR FLARKIRRIA
RVFTVKISAS DIDRMRERGF NLNEIEKIAI KRIIPEAQPD RVIIDSVDVK PERLEEEIRS
HFGEIEVTAE HGADTRYYPV AAASIIAKVE RDLEIESIQK KNRKLGDIGS GYPSDPRTRE
FLESFTYDEL PDFVRRSWAT VQKKKQ
//
