ID   RSGA_PROM3              Reviewed;         321 AA.
AC   A2C5M0;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   03-AUG-2022, entry version 86.
DE   RecName: Full=Small ribosomal subunit biogenesis GTPase RsgA {ECO:0000255|HAMAP-Rule:MF_01820};
DE            EC=3.6.1.- {ECO:0000255|HAMAP-Rule:MF_01820};
GN   Name=rsgA {ECO:0000255|HAMAP-Rule:MF_01820}; OrderedLocusNames=P9303_00231;
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: One of several proteins that assist in the late maturation
CC       steps of the functional core of the 30S ribosomal subunit. Helps
CC       release RbfA from mature subunits. May play a role in the assembly of
CC       ribosomal proteins into the subunit. Circularly permuted GTPase that
CC       catalyzes slow GTP hydrolysis, GTPase activity is stimulated by the 30S
CC       ribosomal subunit. {ECO:0000255|HAMAP-Rule:MF_01820}.
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01820};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_01820};
CC   -!- SUBUNIT: Monomer. Associates with 30S ribosomal subunit, binds 16S
CC       rRNA. {ECO:0000255|HAMAP-Rule:MF_01820}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01820}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class YlqF/YawG GTPase family. RsgA
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_01820}.
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DR   EMBL; CP000554; ABM76780.1; -; Genomic_DNA.
DR   AlphaFoldDB; A2C5M0; -.
DR   SMR; A2C5M0; -.
DR   STRING; 59922.P9303_00231; -.
DR   EnsemblBacteria; ABM76780; ABM76780; P9303_00231.
DR   KEGG; pmf:P9303_00231; -.
DR   HOGENOM; CLU_033617_2_1_3; -.
DR   OMA; QANFYQV; -.
DR   BioCyc; PMAR59922:G1G80-24-MON; -.
DR   Proteomes; UP000002274; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003924; F:GTPase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0019843; F:rRNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0042274; P:ribosomal small subunit biogenesis; IEA:UniProtKB-UniRule.
DR   CDD; cd01854; YjeQ_EngC; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_01820; GTPase_RsgA; 1.
DR   InterPro; IPR030378; G_CP_dom.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR004881; Ribosome_biogen_GTPase_RsgA.
DR   InterPro; IPR010914; RsgA_GTPase_dom.
DR   PANTHER; PTHR32120; PTHR32120; 1.
DR   Pfam; PF03193; RsgA_GTPase; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR00157; TIGR00157; 1.
DR   PROSITE; PS50936; ENGC_GTPASE; 1.
DR   PROSITE; PS51721; G_CP; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Hydrolase; Metal-binding; Nucleotide-binding;
KW   Ribosome biogenesis; RNA-binding; rRNA-binding; Zinc.
FT   CHAIN           1..321
FT                   /note="Small ribosomal subunit biogenesis GTPase RsgA"
FT                   /id="PRO_1000188116"
FT   DOMAIN          89..248
FT                   /note="CP-type G"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01058"
FT   BINDING         138..141
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01820"
FT   BINDING         190..198
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01820"
FT   BINDING         273
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01820"
FT   BINDING         278
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01820"
FT   BINDING         280
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01820"
FT   BINDING         286
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01820"
SQ   SEQUENCE   321 AA;  35743 MW;  A3F96878FF2A11C3 CRC64;
     MAAAEAPRLA GMVVALQANF LEVELETFNP SSLVSWRRST DAEPLRLLCT RRTRLDHRGA
     AVHVGDRVWV EAIDWQERRA VVGDVEPRQS WINRPPVANV TAVVVALAVK QPCFDADQAS
     RFLLSAEQTG VDVHLILTKR DLITSDQLEQ QLVRLRGWGY RPMAVSVQTG EGLGALKNKL
     SSTRLAVFCG PSGVGKTSLL NQLLPQLSLR VGAVSGRLQR GRHTTRHVEL FRLCEGSLVA
     DTPGFNRPEL PADPRKLAVL FPEFDGQIED YPCRFRDCFH RDEPGCGVDK SWERYPIYKR
     FLEEMECLSR SSRGGSGSGL L