RNH2_HERA2
ID RNH2_HERA2 Reviewed; 207 AA.
AC A9B6H3;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 15-JAN-2008, sequence version 1.
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}; OrderedLocusNames=Haur_0224;
OS Herpetosiphon aurantiacus (strain ATCC 23779 / DSM 785 / 114-95).
OC Bacteria; Chloroflexi; Chloroflexia; Herpetosiphonales; Herpetosiphonaceae;
OC Herpetosiphon.
OX NCBI_TaxID=316274;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 23779 / DSM 785 / 114-95;
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., Kiss H., Brettin T., Bruce D., Detter J.C., Han C.,
RA Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Kim E.,
RA Bryant D.A., Richardson P.;
RT "Complete sequence of chromosome of Herpetosiphon aurantiacus ATCC 23779.";
RL Submitted (OCT-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; CP000875; ABX02876.1; -; Genomic_DNA.
DR AlphaFoldDB; A9B6H3; -.
DR SMR; A9B6H3; -.
DR STRING; 316274.Haur_0224; -.
DR EnsemblBacteria; ABX02876; ABX02876; Haur_0224.
DR KEGG; hau:Haur_0224; -.
DR eggNOG; COG0164; Bacteria.
DR HOGENOM; CLU_036532_3_2_0; -.
DR OMA; YPTKLHL; -.
DR Proteomes; UP000000787; 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..207
FT /note="Ribonuclease HII"
FT /id="PRO_1000091629"
FT DOMAIN 17..207
FT /note="RNase H type-2"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT BINDING 23
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT BINDING 24
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
FT BINDING 120
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00052"
SQ SEQUENCE 207 AA; 22256 MW; 68645500DBA97F63 CRC64;
MTIGIHEEQQ LWRNGARIVA GVDEVGRGCW AGPVVAAAVS FPTHLLNDPV ALAGINDSKT
LSAEARQAMA QQIRHLASGI GLGVVSAHLI DLFGIAEATK WAMMHAVLSL PSLPDGLVID
WVKLPELPLL QRSLPKGDAI SISVAAASII AKVYRDNLMH EYDQRDPRYG WAAHKGYGTA
QHQRALAAHG PSGLHRRSFK PLAAFVD
