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RNZ_LACLA
ID   RNZ_LACLA               Reviewed;         307 AA.
AC   Q9CHT8;
DT   16-JAN-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2001, sequence version 1.
DT   03-AUG-2022, entry version 107.
DE   RecName: Full=Ribonuclease Z {ECO:0000255|HAMAP-Rule:MF_01818};
DE            Short=RNase Z {ECO:0000255|HAMAP-Rule:MF_01818};
DE            EC=3.1.26.11 {ECO:0000255|HAMAP-Rule:MF_01818};
DE   AltName: Full=tRNA 3 endonuclease {ECO:0000255|HAMAP-Rule:MF_01818};
DE   AltName: Full=tRNase Z {ECO:0000255|HAMAP-Rule:MF_01818};
GN   Name=rnz {ECO:0000255|HAMAP-Rule:MF_01818}; OrderedLocusNames=LL0630;
GN   ORFNames=L18686;
OS   Lactococcus lactis subsp. lactis (strain IL1403) (Streptococcus lactis).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Lactococcus.
OX   NCBI_TaxID=272623;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IL1403;
RX   PubMed=11337471; DOI=10.1101/gr.gr-1697r;
RA   Bolotin A., Wincker P., Mauger S., Jaillon O., Malarme K., Weissenbach J.,
RA   Ehrlich S.D., Sorokin A.;
RT   "The complete genome sequence of the lactic acid bacterium Lactococcus
RT   lactis ssp. lactis IL1403.";
RL   Genome Res. 11:731-753(2001).
CC   -!- FUNCTION: Zinc phosphodiesterase, which displays some tRNA 3'-
CC       processing endonuclease activity. Probably involved in tRNA maturation,
CC       by removing a 3'-trailer from precursor tRNA. {ECO:0000255|HAMAP-
CC       Rule:MF_01818}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage of RNA, removing extra 3' nucleotides
CC         from tRNA precursor, generating 3' termini of tRNAs. A 3'-hydroxy
CC         group is left at the tRNA terminus and a 5'-phosphoryl group is left
CC         at the trailer molecule.; EC=3.1.26.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01818};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01818};
CC       Note=Binds 2 Zn(2+) ions. {ECO:0000255|HAMAP-Rule:MF_01818};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01818}.
CC   -!- SIMILARITY: Belongs to the RNase Z family. {ECO:0000255|HAMAP-
CC       Rule:MF_01818}.
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DR   EMBL; AE005176; AAK04728.1; -; Genomic_DNA.
DR   PIR; F86703; F86703.
DR   RefSeq; NP_266786.1; NC_002662.1.
DR   RefSeq; WP_003129545.1; NC_002662.1.
DR   AlphaFoldDB; Q9CHT8; -.
DR   SMR; Q9CHT8; -.
DR   STRING; 272623.L18686; -.
DR   PaxDb; Q9CHT8; -.
DR   EnsemblBacteria; AAK04728; AAK04728; L18686.
DR   KEGG; lla:L18686; -.
DR   PATRIC; fig|272623.7.peg.674; -.
DR   eggNOG; COG1234; Bacteria.
DR   HOGENOM; CLU_031317_2_0_9; -.
DR   OMA; GTQRQMM; -.
DR   Proteomes; UP000002196; Chromosome.
DR   GO; GO:0042781; F:3'-tRNA processing endoribonuclease activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0008270; F:zinc ion binding; IEA:UniProtKB-UniRule.
DR   CDD; cd07717; RNaseZ_ZiPD-like_MBL-fold; 1.
DR   Gene3D; 3.60.15.10; -; 1.
DR   HAMAP; MF_01818; RNase_Z_BN; 1.
DR   InterPro; IPR001279; Metallo-B-lactamas.
DR   InterPro; IPR036866; RibonucZ/Hydroxyglut_hydro.
DR   InterPro; IPR013471; RNase_Z/BN.
DR   Pfam; PF00753; Lactamase_B; 1.
DR   Pfam; PF12706; Lactamase_B_2; 1.
DR   SUPFAM; SSF56281; SSF56281; 1.
DR   TIGRFAMs; TIGR02651; RNase_Z; 1.
PE   3: Inferred from homology;
KW   Endonuclease; Hydrolase; Metal-binding; Nuclease; Reference proteome;
KW   tRNA processing; Zinc.
FT   CHAIN           1..307
FT                   /note="Ribonuclease Z"
FT                   /id="PRO_0000155871"
FT   ACT_SITE        67
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         63
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         65
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         67
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         68
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         143
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         213
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="1"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         213
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
FT   BINDING         271
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /ligand_label="2"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01818"
SQ   SEQUENCE   307 AA;  34035 MW;  95CE683276AB4A3D CRC64;
     MEIQFLGTGA GQPSKSRNTQ AIALKMLDER NEIWLFDCGE ATQHQILNTT IKPRKITKIF
     ITHLHGDHIF GLPGFLSSRS FQSSDEQTDL ELYGPVGIKD FVLTALRISG SRLAYRINFH
     EIDSAGKIFE DDSFEVHTDL LDHTIFCLGY RVVEKNRIGE LDANALKEAG LPFGPLFGKI
     KKGEIVQYEG KTFDPKDYIG ADKAGKIVTI LGDTRKSNVA VRLAYGADLL VHEATYEANE
     SKMAKAHGHS TTKQAADVAK EAGVNRLLLT HISARYVGPL VGQLVREAQT VHSNTFVVKD
     FYEEKIG
 
 
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