ID   RNH_BORA1               Reviewed;         153 AA.
AC   Q2KV56;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Ribonuclease H {ECO:0000255|HAMAP-Rule:MF_00042};
DE            Short=RNase H {ECO:0000255|HAMAP-Rule:MF_00042};
DE            EC=3.1.26.4 {ECO:0000255|HAMAP-Rule:MF_00042};
GN   Name=rnhA {ECO:0000255|HAMAP-Rule:MF_00042}; OrderedLocusNames=BAV2934;
OS   Bordetella avium (strain 197N).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC   Alcaligenaceae; Bordetella.
OX   NCBI_TaxID=360910;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=197N;
RX   PubMed=16885469; DOI=10.1128/jb.01927-05;
RA   Sebaihia M., Preston A., Maskell D.J., Kuzmiak H., Connell T.D., King N.D.,
RA   Orndorff P.E., Miyamoto D.M., Thomson N.R., Harris D., Goble A., Lord A.,
RA   Murphy L., Quail M.A., Rutter S., Squares R., Squares S., Woodward J.,
RA   Parkhill J., Temple L.M.;
RT   "Comparison of the genome sequence of the poultry pathogen Bordetella avium
RT   with those of B. bronchiseptica, B. pertussis, and B. parapertussis reveals
RT   extensive diversity in surface structures associated with host
RT   interaction.";
RL   J. Bacteriol. 188:6002-6015(2006).
CC   -!- FUNCTION: Endonuclease that specifically degrades the RNA of RNA-DNA
CC       hybrids. {ECO:0000255|HAMAP-Rule:MF_00042}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage to 5'-phosphomonoester.; EC=3.1.26.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00042};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00042};
CC       Note=Binds 1 Mg(2+) ion per subunit. May bind a second metal ion at a
CC       regulatory site, or after substrate binding. {ECO:0000255|HAMAP-
CC       Rule:MF_00042};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00042}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00042}.
CC   -!- SIMILARITY: Belongs to the RNase H family. {ECO:0000255|HAMAP-
CC       Rule:MF_00042}.
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DR   EMBL; AM167904; CAJ50544.1; -; Genomic_DNA.
DR   RefSeq; WP_012418573.1; NC_010645.1.
DR   AlphaFoldDB; Q2KV56; -.
DR   SMR; Q2KV56; -.
DR   STRING; 360910.BAV2934; -.
DR   EnsemblBacteria; CAJ50544; CAJ50544; BAV2934.
DR   GeneID; 41394773; -.
DR   KEGG; bav:BAV2934; -.
DR   eggNOG; COG0328; Bacteria.
DR   HOGENOM; CLU_030894_6_0_4; -.
DR   OMA; MQEIEIF; -.
DR   OrthoDB; 1953872at2; -.
DR   Proteomes; UP000001977; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003676; F:nucleic acid 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; cd09278; RNase_HI_prokaryote_like; 1.
DR   Gene3D; 3.30.420.10; -; 1.
DR   HAMAP; MF_00042; RNase_H; 1.
DR   InterPro; IPR012337; RNaseH-like_sf.
DR   InterPro; IPR002156; RNaseH_domain.
DR   InterPro; IPR036397; RNaseH_sf.
DR   InterPro; IPR022892; RNaseHI.
DR   Pfam; PF00075; RNase_H; 1.
DR   SUPFAM; SSF53098; SSF53098; 1.
DR   PROSITE; PS50879; RNASE_H_1; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Endonuclease; Hydrolase; Magnesium; Metal-binding; Nuclease;
KW   Reference proteome.
FT   CHAIN           1..153
FT                   /note="Ribonuclease H"
FT                   /id="PRO_0000332564"
FT   DOMAIN          7..148
FT                   /note="RNase H type-1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00408"
FT   BINDING         16
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         16
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         54
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         76
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
FT   BINDING         140
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00042"
SQ   SEQUENCE   153 AA;  17086 MW;  A72637DFEB1BDB8F CRC64;
     MSTANPPADL VEMWTDGACK GNPGPGGWGV LMRYGSHEKT FFGGDPQTTN NRMEILAVVE
     GLRALKRACT VVIHTDSQYV MKGMTEWLPN WKRRGWLTAD KKPVKNAELW QLLDAQVARH
     EVRWQWVRGH NGDPGNEMAD MLANQGVASV ARN