ID   RNH2_SYNWW              Reviewed;         255 AA.
AC   Q0AWX1;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   03-AUG-2022, entry version 87.
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=Swol_1478;
OS   Syntrophomonas wolfei subsp. wolfei (strain DSM 2245B / Goettingen).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Syntrophomonadaceae;
OC   Syntrophomonas.
OX   NCBI_TaxID=335541;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 2245B / Goettingen;
RX   PubMed=21966920; DOI=10.1111/j.1462-2920.2010.02237.x;
RA   Sieber J.R., Sims D.R., Han C., Kim E., Lykidis A., Lapidus A.L.,
RA   McDonnald E., Rohlin L., Culley D.E., Gunsalus R., McInerney M.J.;
RT   "The genome of Syntrophomonas wolfei: new insights into syntrophic
RT   metabolism and biohydrogen production.";
RL   Environ. Microbiol. 12:2289-2301(2010).
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; CP000448; ABI68783.1; -; Genomic_DNA.
DR   RefSeq; WP_011640882.1; NC_008346.1.
DR   AlphaFoldDB; Q0AWX1; -.
DR   SMR; Q0AWX1; -.
DR   STRING; 335541.Swol_1478; -.
DR   EnsemblBacteria; ABI68783; ABI68783; Swol_1478.
DR   KEGG; swo:Swol_1478; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_3_2_9; -.
DR   OMA; YPTKLHL; -.
DR   OrthoDB; 1685277at2; -.
DR   Proteomes; UP000001968; 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; cd07182; RNase_HII_bacteria_HII_like; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00052_B; RNase_HII_B; 1.
DR   InterPro; IPR022898; RNase_HII.
DR   InterPro; IPR001352; RNase_HII/HIII.
DR   InterPro; IPR024567; RNase_HII/HIII_dom.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR036397; RNaseH_sf.
DR   PANTHER; PTHR10954; PTHR10954; 1.
DR   PANTHER; PTHR10954:SF18; PTHR10954:SF18; 1.
DR   Pfam; PF01351; RNase_HII; 1.
DR   SUPFAM; SSF53098; SSF53098; 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..255
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000334967"
FT   DOMAIN          58..247
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         64
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         65
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         156
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   255 AA;  28634 MW;  8D87E4B6C32327AA CRC64;
     MRSEQPLYNK RLFSDIIDKS THFKEGLGLD KQKYLLDEVK RIEDLKRYEY EAYNNGFRYI
     AGIDEAGRGP IAGPVMAAAV ILSRDFFCPG INDSKKLTAL KRSKLAAEIK KQAISWSVAA
     VFPSYLDKVN ILNATREAML LAVKNLSPRP EFLLIDAVQL PDIDIKQYPL IKGDSLSVSI
     AAASILAKVE RDRVMEAFDS LYPGYGFSRH KGYATREHLQ SLLRLGTCAL HRVSFEPVKS
     MVLGARYGEQ PALFE