ID   RNPA_PICP2              Reviewed;         116 AA.
AC   B1XJD2;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   04-NOV-2026, entry version 100.
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};
GN   OrderedLocusNames=SYNPCC7002_A0989;
OS   Picosynechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6) (Agmenellum
OS   quadruplicatum).
OC   Bacteria; Bacillati; Cyanobacteriota; Cyanophyceae; Oscillatoriophycideae;
OC   Chroococcales; Geminocystaceae; Picosynechococcus.
OX   NCBI_TaxID=32049;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27264 / PCC 7002 / PR-6;
RA   Li T., Zhao J., Zhao C., Liu Z., Zhao F., Marquardt J., Nomura C.T.,
RA   Persson S., Detter J.C., Richardson P.M., Lanz C., Schuster S.C., Wang J.,
RA   Li S., Huang X., Cai T., Yu Z., Luo J., Zhao J., Bryant D.A.;
RT   "Complete sequence of Synechococcus sp. PCC 7002.";
RL   Submitted (FEB-2008) to the EMBL/GenBank/DDBJ databases.
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; CP000951; ACA98992.1; -; Genomic_DNA.
DR   RefSeq; WP_012306616.1; NC_010475.1.
DR   AlphaFoldDB; B1XJD2; -.
DR   SMR; B1XJD2; -.
DR   STRING; 32049.SYNPCC7002_A0989; -.
DR   KEGG; syp:SYNPCC7002_A0989; -.
DR   eggNOG; COG0594; Bacteria.
DR   HOGENOM; CLU_117179_9_0_3; -.
DR   OMA; AAVQCDY; -.
DR   Proteomes; UP000001688; Chromosome.
DR   GO; GO:0030677; C:ribonuclease P complex; IEA:TreeGrafter.
DR   GO; GO:0042781; F:3'-tRNA processing endoribonuclease activity; IEA:TreeGrafter.
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_Su5_D2-typ_SF.
DR   InterPro; IPR014721; Ribsml_uS5_D2-typ_fold_subgr.
DR   InterPro; IPR000100; RNase_P.
DR   InterPro; IPR020539; RNase_P_CS.
DR   NCBIfam; TIGR00188; rnpA; 1.
DR   PANTHER; PTHR33992; RIBONUCLEASE P PROTEIN COMPONENT; 1.
DR   PANTHER; PTHR33992:SF1; RIBONUCLEASE P PROTEIN COMPONENT; 1.
DR   Pfam; PF00825; Ribonuclease_P; 1.
DR   SUPFAM; SSF54211; Ribosomal protein S5 domain 2-like; 1.
DR   PROSITE; PS00648; RIBONUCLEASE_P; 1.
PE   3: Inferred from homology;
KW   Endonuclease; Hydrolase; Nuclease; Reference proteome; RNA-binding;
KW   tRNA processing.
FT   CHAIN           1..116
FT                   /note="Ribonuclease P protein component"
FT                   /id="PRO_1000100402"
SQ   SEQUENCE   116 AA;  13607 MW;  0B99F3BF2696799B CRC64;
     MGLPKEHRLK HWRDFKTIYS QGKRFRGDAL AIILLPQPAA PTKIGISISR KVSKKAVVRN
     LIKRRIRHAC RTLLPQIQPG WHIVIAVRYN ARECEYEHFL QELKRLLIQA EVFHGH
//