ID   OBG_ECO5E               Reviewed;         390 AA.
AC   B5YS72;
DT   13-OCT-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 83.
DE   RecName: Full=GTPase Obg {ECO:0000255|HAMAP-Rule:MF_01454};
DE            EC=3.6.5.- {ECO:0000255|HAMAP-Rule:MF_01454};
DE   AltName: Full=GTP-binding protein Obg {ECO:0000255|HAMAP-Rule:MF_01454};
GN   Name=obg {ECO:0000255|HAMAP-Rule:MF_01454};
GN   OrderedLocusNames=ECH74115_4505;
OS   Escherichia coli O157:H7 (strain EC4115 / EHEC).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=444450;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=EC4115 / EHEC;
RX   PubMed=22135463; DOI=10.1073/pnas.1107176108;
RA   Eppinger M., Mammel M.K., Leclerc J.E., Ravel J., Cebula T.A.;
RT   "Genomic anatomy of Escherichia coli O157:H7 outbreaks.";
RL   Proc. Natl. Acad. Sci. U.S.A. 108:20142-20147(2011).
CC   -!- FUNCTION: An essential GTPase which binds GTP, GDP and possibly
CC       (p)ppGpp with moderate affinity, with high nucleotide exchange rates
CC       and a fairly low GTP hydrolysis rate. Plays a role in control of the
CC       cell cycle, stress response, ribosome biogenesis and in those bacteria
CC       that undergo differentiation, in morphogenesis control.
CC       {ECO:0000255|HAMAP-Rule:MF_01454}.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01454};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01454}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01454}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class OBG-HflX-like GTPase
CC       superfamily. OBG GTPase family. {ECO:0000255|HAMAP-Rule:MF_01454}.
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DR   EMBL; CP001164; ACI38165.1; -; Genomic_DNA.
DR   RefSeq; WP_000673572.1; NC_011353.1.
DR   AlphaFoldDB; B5YS72; -.
DR   SMR; B5YS72; -.
DR   GeneID; 66506840; -.
DR   KEGG; ecf:ECH74115_4505; -.
DR   HOGENOM; CLU_011747_2_0_6; -.
DR   OMA; VVFDWEP; -.
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:0000287; F:magnesium ion binding; IEA:InterPro.
DR   GO; GO:0042254; P:ribosome biogenesis; IEA:UniProtKB-UniRule.
DR   CDD; cd01898; Obg; 1.
DR   Gene3D; 2.70.210.12; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_01454; GTPase_Obg; 1.
DR   InterPro; IPR031167; G_OBG.
DR   InterPro; IPR006073; GTP-bd.
DR   InterPro; IPR014100; GTP-bd_Obg/CgtA.
DR   InterPro; IPR006074; GTP1-OBG_CS.
DR   InterPro; IPR006169; GTP1_OBG_dom.
DR   InterPro; IPR036726; GTP1_OBG_dom_sf.
DR   InterPro; IPR045086; OBG_GTPase.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR11702; PTHR11702; 1.
DR   Pfam; PF01018; GTP1_OBG; 1.
DR   Pfam; PF01926; MMR_HSR1; 1.
DR   PIRSF; PIRSF002401; GTP_bd_Obg/CgtA; 1.
DR   PRINTS; PR00326; GTP1OBG.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   SUPFAM; SSF82051; SSF82051; 1.
DR   TIGRFAMs; TIGR02729; Obg_CgtA; 1.
DR   PROSITE; PS51710; G_OBG; 1.
DR   PROSITE; PS00905; GTP1_OBG; 1.
DR   PROSITE; PS51883; OBG; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Hydrolase; Magnesium; Metal-binding;
KW   Nucleotide-binding.
FT   CHAIN           1..390
FT                   /note="GTPase Obg"
FT                   /id="PRO_0000385919"
FT   DOMAIN          1..159
FT                   /note="Obg"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01231"
FT   DOMAIN          160..333
FT                   /note="OBG-type G"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   REGION          127..147
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        128..142
FT                   /note="Polar residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         166..173
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   BINDING         173
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   BINDING         191..195
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   BINDING         193
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   BINDING         213..216
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   BINDING         283..286
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
FT   BINDING         314..316
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01454"
SQ   SEQUENCE   390 AA;  43256 MW;  3A7BBF5958FB7C47 CRC64;
     MKFVDEASIL VVAGDGGNGC VSFRREKYIP KGGPDGGDGG DGGDVWMEAD ENLNTLIDYR
     FEKSFRAERG QNGASRDCTG KRGKDVTIKV PVGTRVIDQG TGETMGDMTK HGQRLLVAKG
     GWHGLGNTRF KSSVNRTPRQ KTNGTPGDKR ELLLELMLLA DVGMLGMPNA GKSTFIRAVS
     AAKPKVADYP FTTLVPSLGV VRMDNEKSFV VADIPGLIEG AAEGAGLGIR FLKHLERCRV
     LLHLIDIDPI DGTDPVENAR IIISELEKYS QDLAAKPRWL VFNKIDLLDK VEAEEKAKAI
     AEALGWEDKY YLISAASGLG VKDLCWDVMT FIIENPVVQA EEAKQPEKVE FMWDDYHRQQ
     LEEIAEEDDE DWDDDWDEDD EEGVEFIYKR