ID   RNPA_PROM3              Reviewed;         128 AA.
AC   A2C7A3;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Ribonuclease P protein component {ECO:0000255|HAMAP-Rule:MF_00227};
DE            Short=RNase P protein {ECO:0000255|HAMAP-Rule:MF_00227};
DE            Short=RNaseP protein {ECO:0000255|HAMAP-Rule:MF_00227};
DE            EC=3.1.26.5 {ECO:0000255|HAMAP-Rule:MF_00227};
DE   AltName: Full=Protein C5 {ECO:0000255|HAMAP-Rule:MF_00227};
GN   Name=rnpA {ECO:0000255|HAMAP-Rule:MF_00227}; OrderedLocusNames=P9303_06111;
OS   Prochlorococcus marinus (strain MIT 9303).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=59922;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9303;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
CC   -!- FUNCTION: RNaseP catalyzes the removal of the 5'-leader sequence from
CC       pre-tRNA to produce the mature 5'-terminus. It can also cleave other
CC       RNA substrates such as 4.5S RNA. The protein component plays an
CC       auxiliary but essential role in vivo by binding to the 5'-leader
CC       sequence and broadening the substrate specificity of the ribozyme.
CC       {ECO:0000255|HAMAP-Rule:MF_00227}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endonucleolytic cleavage of RNA, removing 5'-extranucleotides
CC         from tRNA precursor.; EC=3.1.26.5; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00227};
CC   -!- SUBUNIT: Consists of a catalytic RNA component (M1 or rnpB) and a
CC       protein subunit. {ECO:0000255|HAMAP-Rule:MF_00227}.
CC   -!- SIMILARITY: Belongs to the RnpA family. {ECO:0000255|HAMAP-
CC       Rule:MF_00227}.
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DR   EMBL; CP000554; ABM77363.1; -; Genomic_DNA.
DR   AlphaFoldDB; A2C7A3; -.
DR   SMR; A2C7A3; -.
DR   STRING; 59922.P9303_06111; -.
DR   EnsemblBacteria; ABM77363; ABM77363; P9303_06111.
DR   KEGG; pmf:P9303_06111; -.
DR   HOGENOM; CLU_117179_2_0_3; -.
DR   OMA; MRLKGHR; -.
DR   BioCyc; PMAR59922:G1G80-561-MON; -.
DR   Proteomes; UP000002274; Chromosome.
DR   GO; GO:0004526; F:ribonuclease P activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0001682; P:tRNA 5'-leader removal; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.230.10; -; 1.
DR   HAMAP; MF_00227; RNase_P; 1.
DR   InterPro; IPR020568; Ribosomal_S5_D2-typ_fold.
DR   InterPro; IPR014721; Ribosomal_S5_D2-typ_fold_subgr.
DR   InterPro; IPR000100; RNase_P.
DR   Pfam; PF00825; Ribonuclease_P; 1.
DR   SUPFAM; SSF54211; SSF54211; 1.
PE   3: Inferred from homology;
KW   Endonuclease; Hydrolase; Nuclease; RNA-binding; tRNA processing.
FT   CHAIN           1..128
FT                   /note="Ribonuclease P protein component"
FT                   /id="PRO_1000194660"
SQ   SEQUENCE   128 AA;  14722 MW;  0FABF58A4C2F9650 CRC64;
     MVLPASMRLR GSRCFERLQK WGYRFYGTSM VLRVIEADPQ LLKAPHRHHN STACRCAVVI
     SSKVSKRAVI RNRLRRRLHN HLRSRLEVAP EHCNHWVLIS LKPVASAIEA SPLLEECDRL
     LHQAGLLS