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RNH2_MYCLE
ID   RNH2_MYCLE              Reviewed;         240 AA.
AC   O33022;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1998, sequence version 1.
DT   03-AUG-2022, entry version 116.
DE   RecName: Full=Ribonuclease HII;
DE            Short=RNase HII;
DE            EC=3.1.26.4;
GN   Name=rnhB; OrderedLocusNames=ML1611; ORFNames=MLCB250.40;
OS   Mycobacterium leprae (strain TN).
OC   Bacteria; Actinobacteria; Corynebacteriales; Mycobacteriaceae;
OC   Mycobacterium.
OX   NCBI_TaxID=272631;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TN;
RX   PubMed=11234002; DOI=10.1038/35059006;
RA   Cole S.T., Eiglmeier K., Parkhill J., James K.D., Thomson N.R.,
RA   Wheeler P.R., Honore N., Garnier T., Churcher C.M., Harris D.E.,
RA   Mungall K.L., Basham D., Brown D., Chillingworth T., Connor R.,
RA   Davies R.M., Devlin K., Duthoy S., Feltwell T., Fraser A., Hamlin N.,
RA   Holroyd S., Hornsby T., Jagels K., Lacroix C., Maclean J., Moule S.,
RA   Murphy L.D., Oliver K., Quail M.A., Rajandream M.A., Rutherford K.M.,
RA   Rutter S., Seeger K., Simon S., Simmonds M., Skelton J., Squares R.,
RA   Squares S., Stevens K., Taylor K., Whitehead S., Woodward J.R.,
RA   Barrell B.G.;
RT   "Massive gene decay in the leprosy bacillus.";
RL   Nature 409:1007-1011(2001).
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; Z97369; CAB10634.1; -; Genomic_DNA.
DR   EMBL; AL583922; CAC30562.1; -; Genomic_DNA.
DR   PIR; E87110; E87110.
DR   RefSeq; NP_302110.1; NC_002677.1.
DR   RefSeq; WP_010908431.1; NC_002677.1.
DR   AlphaFoldDB; O33022; -.
DR   SMR; O33022; -.
DR   STRING; 272631.ML1611; -.
DR   EnsemblBacteria; CAC30562; CAC30562; CAC30562.
DR   KEGG; mle:ML1611; -.
DR   PATRIC; fig|272631.5.peg.3037; -.
DR   Leproma; ML1611; -.
DR   eggNOG; COG0164; Bacteria.
DR   HOGENOM; CLU_036532_1_0_11; -.
DR   OMA; YPTKLHL; -.
DR   Proteomes; UP000000806; 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..240
FT                   /note="Ribonuclease HII"
FT                   /id="PRO_0000111591"
FT   DOMAIN          33..222
FT                   /note="RNase H type-2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01319"
FT   BINDING         39
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000250"
FT   BINDING         40
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000250"
FT   BINDING         131
FT                   /ligand="a divalent metal cation"
FT                   /ligand_id="ChEBI:CHEBI:60240"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   240 AA;  25600 MW;  3789259F169454C2 CRC64;
     MATTWPPCRI IRKSGGLRGM WTLEYELQRS GLGPVAGVDE VGRGACAGPL VVAACVLGPG
     RLEESLDDSK KLSAKGREML FPLICRYALA YHVVFIPSVE VDRHGVQVAN IEGMRRAVAG
     LSVRPGYVLS DGFRVPGLSV PSLPVVGGDA VVACIAAASV LAKVSRDRLM VAMDADYPGY
     GFAAHKGYCT RAHSLALTQL GPCPEHRYSF INVRRIVTRS NTRAVAGFTP APPAEHGECR
 
 
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