ID   RNH2_ANADF              Reviewed;         315 AA.
AC   A7H722;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 2.
DT   03-AUG-2022, entry version 77.
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};
GN   OrderedLocusNames=Anae109_0302;
OS   Anaeromyxobacter sp. (strain Fw109-5).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Myxococcales;
OC   Cystobacterineae; Anaeromyxobacteraceae; Anaeromyxobacter;
OC   unclassified Anaeromyxobacter.
OX   NCBI_TaxID=404589;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Fw109-5;
RX   PubMed=25614562; DOI=10.1128/genomea.01449-14;
RA   Hwang C., Copeland A., Lucas S., Lapidus A., Barry K., Glavina Del Rio T.,
RA   Dalin E., Tice H., Pitluck S., Sims D., Brettin T., Bruce D.C.,
RA   Detter J.C., Han C.S., Schmutz J., Larimer F.W., Land M.L., Hauser L.J.,
RA   Kyrpides N., Lykidis A., Richardson P., Belieav A., Sanford R.A.,
RA   Loeffler F.E., Fields M.W.;
RT   "Complete genome sequence of Anaeromyxobacter sp. Fw109-5, an anaerobic,
RT   metal-reducing bacterium isolated from a contaminated subsurface
RT   environment.";
RL   Genome Announc. 3:0-0(2015).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABS24518.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000769; ABS24518.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041448046.1; NC_009675.1.
DR   AlphaFoldDB; A7H722; -.
DR   SMR; A7H722; -.
DR   STRING; 404589.Anae109_0302; -.
DR   EnsemblBacteria; ABS24518; ABS24518; Anae109_0302.
DR   KEGG; afw:Anae109_0302; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_2_0_7; -.
DR   OrthoDB; 1685277at2; -.
DR   Proteomes; UP000006382; 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..315
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000334860"
FT   DOMAIN          78..267
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   REGION          273..292
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         84
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         85
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT   BINDING         176
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ   SEQUENCE   315 AA;  34111 MW;  5465CDEA26FD9655 CRC64;
     MRPEDLARMS VAELRERFLD RNRALSPECE AALTTDPRAG AREVLRLILK RRHANRAEGQ
     RLRHLLRYEG ELWDGGVTLV AGVDEAGMAP LAGPVVAGAC ILPRDYRPRG IDDSKQLDRR
     ERERLAEDIK ANAVCWAVAR AEVEEIDRLN IYRAGLLALT RAVQALTPAP GHVLVDARKL
     PELRLPQTPI IHGDALSLTI AAASILAKTT RDELMGELDA LYPGYGFCNH KGYPTAEHFQ
     ALERLGACPI HRRSFQPVRE ALGLAPLQGE LFAPPPESAA EPGGEGAIAG IAPGSAPCDV
     AEPLPARTPA SARGI