ID   HFLX_NITMS              Reviewed;         371 AA.
AC   A9A623;
DT   21-SEP-2011, integrated into UniProtKB/Swiss-Prot.
DT   15-JAN-2008, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=GTPase HflX {ECO:0000255|HAMAP-Rule:MF_00900};
DE   AltName: Full=GTP-binding protein HflX {ECO:0000255|HAMAP-Rule:MF_00900};
GN   Name=hflX {ECO:0000255|HAMAP-Rule:MF_00900}; OrderedLocusNames=Nmar_1605;
OS   Nitrosopumilus maritimus (strain SCM1).
OC   Archaea; Thaumarchaeota; Nitrosopumilales; Nitrosopumilaceae;
OC   Nitrosopumilus.
OX   NCBI_TaxID=436308;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SCM1;
RX   PubMed=20421470; DOI=10.1073/pnas.0913533107;
RA   Walker C.B., de la Torre J.R., Klotz M.G., Urakawa H., Pinel N., Arp D.J.,
RA   Brochier-Armanet C., Chain P.S., Chan P.P., Gollabgir A., Hemp J.,
RA   Hugler M., Karr E.A., Konneke M., Shin M., Lawton T.J., Lowe T.,
RA   Martens-Habbena W., Sayavedra-Soto L.A., Lang D., Sievert S.M.,
RA   Rosenzweig A.C., Manning G., Stahl D.A.;
RT   "Nitrosopumilus maritimus genome reveals unique mechanisms for
RT   nitrification and autotrophy in globally distributed marine crenarchaea.";
RL   Proc. Natl. Acad. Sci. U.S.A. 107:8818-8823(2010).
CC   -!- FUNCTION: GTPase that associates with the 50S ribosomal subunit and may
CC       have a role during protein synthesis or ribosome biogenesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00900}.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00900};
CC   -!- SUBUNIT: Monomer. Associates with the 50S ribosomal subunit.
CC       {ECO:0000255|HAMAP-Rule:MF_00900}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00900}.
CC       Note=May associate with membranes. {ECO:0000255|HAMAP-Rule:MF_00900}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class OBG-HflX-like GTPase
CC       superfamily. HflX GTPase family. {ECO:0000255|HAMAP-Rule:MF_00900}.
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DR   EMBL; CP000866; ABX13501.1; -; Genomic_DNA.
DR   AlphaFoldDB; A9A623; -.
DR   SMR; A9A623; -.
DR   STRING; 436308.Nmar_1605; -.
DR   EnsemblBacteria; ABX13501; ABX13501; Nmar_1605.
DR   KEGG; nmr:Nmar_1605; -.
DR   eggNOG; arCOG00353; Archaea.
DR   HOGENOM; CLU_019597_2_0_2; -.
DR   OMA; AEMKTGR; -.
DR   PhylomeDB; A9A623; -.
DR   Proteomes; UP000000792; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IBA:GO_Central.
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:0043022; F:ribosome binding; IBA:GO_Central.
DR   Gene3D; 3.40.50.11060; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00900; GTPase_HflX; 1.
DR   InterPro; IPR030394; G_HFLX_dom.
DR   InterPro; IPR006073; GTP-bd.
DR   InterPro; IPR032305; GTP-bd_M.
DR   InterPro; IPR016496; GTPase_HflX.
DR   InterPro; IPR025121; GTPase_HflX_N.
DR   InterPro; IPR042108; GTPase_HflX_N_sf.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   PANTHER; PTHR10229; PTHR10229; 1.
DR   Pfam; PF16360; GTP-bdg_M; 1.
DR   Pfam; PF13167; GTP-bdg_N; 1.
DR   Pfam; PF01926; MMR_HSR1; 1.
DR   PIRSF; PIRSF006809; GTP-binding_hflX_prd; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR03156; GTP_HflX; 1.
DR   PROSITE; PS51705; G_HFLX; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Magnesium; Metal-binding; Nucleotide-binding;
KW   Reference proteome.
FT   CHAIN           1..371
FT                   /note="GTPase HflX"
FT                   /id="PRO_0000412666"
FT   DOMAIN          184..355
FT                   /note="Hflx-type G"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         190..197
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         197
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         215..219
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         217
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         236..239
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         304..307
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
FT   BINDING         333..335
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00900"
SQ   SEQUENCE   371 AA;  42035 MW;  6C9508383DD22C5D CRC64;
     MKSAILITYD KEDVINEAKG LCDAAGFQVV HTIKQKFLKR PKYGISGGIL ERLEEISEKI
     RPDVIVFDEV LKPSQNYNLA AALHREILDR EALILEIFES RASSAESKLQ VKLAQLRYEM
     ARAKEKVRLS SMGEQPGFMG IGKFEVDVYY NDIKHRMNTV RSKLEKAGKQ RELHRQGRKR
     MGFKTISLAG YTSAGKTTLF NMMTGETRDQ SSELFTTLST TTRRVSINQE PFLISDTVGF
     ISKLPAYMID AFKSTLEELG HTDIIIVVID IGDSIFELKK KFSSCMRTLS ELGVEKDRMV
     YALNKSDLLE HSEIEEKIET LNLVDNKKWI PVSAKTGKNV KQLKELIGDI LESHNSHKFG
     KKIGVEETFG N