ID   ERA_BUCAI               Reviewed;         283 AA.
AC   P57345;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2000, sequence version 1.
DT   03-AUG-2022, entry version 125.
DE   RecName: Full=GTPase Era {ECO:0000255|HAMAP-Rule:MF_00367};
GN   Name=era {ECO:0000255|HAMAP-Rule:MF_00367}; OrderedLocusNames=BU257;
OS   Buchnera aphidicola subsp. Acyrthosiphon pisum (strain APS) (Acyrthosiphon
OS   pisum symbiotic bacterium).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=107806;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=APS;
RX   PubMed=10993077; DOI=10.1038/35024074;
RA   Shigenobu S., Watanabe H., Hattori M., Sakaki Y., Ishikawa H.;
RT   "Genome sequence of the endocellular bacterial symbiont of aphids Buchnera
RT   sp. APS.";
RL   Nature 407:81-86(2000).
CC   -!- FUNCTION: An essential GTPase that binds both GDP and GTP, with rapid
CC       nucleotide exchange. Plays a role in 16S rRNA processing and 30S
CC       ribosomal subunit biogenesis and possibly also in cell cycle regulation
CC       and energy metabolism. {ECO:0000255|HAMAP-Rule:MF_00367}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00367}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm. Cell membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00367}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00367}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like
CC       GTPase superfamily. Era GTPase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00367, ECO:0000255|PROSITE-ProRule:PRU01050}.
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DR   EMBL; BA000003; BAB12967.1; -; Genomic_DNA.
DR   RefSeq; NP_240081.1; NC_002528.1.
DR   RefSeq; WP_010896029.1; NC_002528.1.
DR   AlphaFoldDB; P57345; -.
DR   SMR; P57345; -.
DR   STRING; 107806.10038932; -.
DR   EnsemblBacteria; BAB12967; BAB12967; BAB12967.
DR   KEGG; buc:BU257; -.
DR   PATRIC; fig|107806.10.peg.267; -.
DR   eggNOG; COG1159; Bacteria.
DR   HOGENOM; CLU_038009_1_2_6; -.
DR   OMA; WAEVDVI; -.
DR   Proteomes; UP000001806; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005886; C:plasma membrane; 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:0070181; F:small ribosomal subunit rRNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0042274; P:ribosomal small subunit biogenesis; IEA:UniProtKB-UniRule.
DR   CDD; cd04163; Era; 1.
DR   Gene3D; 3.30.300.20; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00367; GTPase_Era; 1.
DR   InterPro; IPR030388; G_ERA_dom.
DR   InterPro; IPR006073; GTP-bd.
DR   InterPro; IPR005662; GTP-bd_Era.
DR   InterPro; IPR015946; KH_dom-like_a/b.
DR   InterPro; IPR004044; KH_dom_type_2.
DR   InterPro; IPR009019; KH_sf_prok-type.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   PANTHER; PTHR42698; PTHR42698; 1.
DR   Pfam; PF07650; KH_2; 1.
DR   Pfam; PF01926; MMR_HSR1; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   SUPFAM; SSF54814; SSF54814; 1.
DR   TIGRFAMs; TIGR00436; era; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS51713; G_ERA; 1.
DR   PROSITE; PS50823; KH_TYPE_2; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Cytoplasm; GTP-binding; Membrane; Nucleotide-binding;
KW   Reference proteome; Ribosome biogenesis; RNA-binding; rRNA-binding.
FT   CHAIN           1..283
FT                   /note="GTPase Era"
FT                   /id="PRO_0000180002"
FT   DOMAIN          7..175
FT                   /note="Era-type G"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01050"
FT   DOMAIN          198..283
FT                   /note="KH type-2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00367"
FT   REGION          15..22
FT                   /note="G1"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01050"
FT   REGION          41..45
FT                   /note="G2"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01050"
FT   REGION          62..65
FT                   /note="G3"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01050"
FT   REGION          124..127
FT                   /note="G4"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01050"
FT   REGION          154..156
FT                   /note="G5"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01050"
FT   BINDING         15..22
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00367"
FT   BINDING         62..66
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00367"
FT   BINDING         124..127
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00367"
SQ   SEQUENCE   283 AA;  32902 MW;  5AC9E31E50DDBE73 CRC64;
     MKIKKKYCGH VIIVGKANVG KSTLLNNIIG KKISIVSRKK NTTQSNITGI KTEDNYQSIY
     IDTPGVVFDK NNNQMKHHKN NFYQTTQIAT LIIFIIDRID WTIHDEIILN EIKKTKIPIL
     IIINKIDKIS NKIILLPFIN FLKKKIDFIE ILPISAKKIS NLILLKNIIK SYLPENCHIY
     PECYITTNSD FFTVSEIIRE QLILFLGDEL PSIIKVEIES FKKKEKIALY IKAIIWVKNV
     RQKSIVIGHN GEKIKKISMI SRNNIEKKFY IKTHLVLWVK DKN