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Database: UniProt
Entry: RELA_STAEQ
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Original site: RELA_STAEQ 
ID   RELA_STAEQ              Reviewed;         729 AA.
AC   Q5HNR8;
DT   20-DEC-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-FEB-2005, sequence version 1.
DT   27-MAR-2024, entry version 120.
DE   RecName: Full=GTP pyrophosphokinase;
DE            EC=2.7.6.5;
DE   AltName: Full=(p)ppGpp synthase;
DE   AltName: Full=ATP:GTP 3'-pyrophosphotransferase;
DE   AltName: Full=ppGpp synthase I;
GN   Name=relA; OrderedLocusNames=SERP1196;
OS   Staphylococcus epidermidis (strain ATCC 35984 / RP62A).
OC   Bacteria; Bacillota; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=176279;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 35984 / RP62A;
RX   PubMed=15774886; DOI=10.1128/jb.187.7.2426-2438.2005;
RA   Gill S.R., Fouts D.E., Archer G.L., Mongodin E.F., DeBoy R.T., Ravel J.,
RA   Paulsen I.T., Kolonay J.F., Brinkac L.M., Beanan M.J., Dodson R.J.,
RA   Daugherty S.C., Madupu R., Angiuoli S.V., Durkin A.S., Haft D.H.,
RA   Vamathevan J.J., Khouri H., Utterback T.R., Lee C., Dimitrov G., Jiang L.,
RA   Qin H., Weidman J., Tran K., Kang K.H., Hance I.R., Nelson K.E.,
RA   Fraser C.M.;
RT   "Insights on evolution of virulence and resistance from the complete genome
RT   analysis of an early methicillin-resistant Staphylococcus aureus strain and
RT   a biofilm-producing methicillin-resistant Staphylococcus epidermidis
RT   strain.";
RL   J. Bacteriol. 187:2426-2438(2005).
CC   -!- FUNCTION: In eubacteria ppGpp (guanosine 3'-diphosphate 5'-diphosphate)
CC       is a mediator of the stringent response that coordinates a variety of
CC       cellular activities in response to changes in nutritional abundance.
CC       This enzyme catalyzes the formation of pppGpp which is then hydrolyzed
CC       to form ppGpp (By similarity). {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + GTP = AMP + guanosine 3'-diphosphate 5'-triphosphate;
CC         Xref=Rhea:RHEA:22088, ChEBI:CHEBI:30616, ChEBI:CHEBI:37565,
CC         ChEBI:CHEBI:142410, ChEBI:CHEBI:456215; EC=2.7.6.5;
CC   -!- PATHWAY: Purine metabolism; ppGpp biosynthesis; ppGpp from GTP: step
CC       1/2.
CC   -!- SIMILARITY: Belongs to the RelA/SpoT family. {ECO:0000305}.
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DR   EMBL; CP000029; AAW54575.1; -; Genomic_DNA.
DR   RefSeq; WP_001832683.1; NC_002976.3.
DR   AlphaFoldDB; Q5HNR8; -.
DR   SMR; Q5HNR8; -.
DR   STRING; 176279.SERP1196; -.
DR   GeneID; 50018568; -.
DR   KEGG; ser:SERP1196; -.
DR   eggNOG; COG0317; Bacteria.
DR   HOGENOM; CLU_012300_3_0_9; -.
DR   UniPathway; UPA00908; UER00884.
DR   Proteomes; UP000000531; Chromosome.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-KW.
DR   GO; GO:0008728; F:GTP diphosphokinase activity; IEA:UniProtKB-EC.
DR   GO; GO:0016301; F:kinase activity; IEA:UniProtKB-KW.
DR   GO; GO:0015970; P:guanosine tetraphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   CDD; cd04876; ACT_RelA-SpoT; 1.
DR   CDD; cd00077; HDc; 1.
DR   CDD; cd05399; NT_Rel-Spo_like; 1.
DR   CDD; cd01668; TGS_RSH; 1.
DR   Gene3D; 3.10.20.30; -; 1.
DR   Gene3D; 3.30.70.260; -; 1.
DR   Gene3D; 3.30.460.10; Beta Polymerase, domain 2; 1.
DR   Gene3D; 1.10.3210.10; Hypothetical protein af1432; 1.
DR   InterPro; IPR045865; ACT-like_dom_sf.
DR   InterPro; IPR002912; ACT_dom.
DR   InterPro; IPR012675; Beta-grasp_dom_sf.
DR   InterPro; IPR003607; HD/PDEase_dom.
DR   InterPro; IPR006674; HD_domain.
DR   InterPro; IPR043519; NT_sf.
DR   InterPro; IPR004811; RelA/Spo_fam.
DR   InterPro; IPR045600; RelA/SpoT_AH_RIS.
DR   InterPro; IPR007685; RelA_SpoT.
DR   InterPro; IPR004095; TGS.
DR   InterPro; IPR012676; TGS-like.
DR   InterPro; IPR033655; TGS_RelA/SpoT.
DR   NCBIfam; TIGR00691; spoT_relA; 1.
DR   PANTHER; PTHR21262:SF31; BIFUNCTIONAL (P)PPGPP SYNTHASE_HYDROLASE SPOT; 1.
DR   PANTHER; PTHR21262; GUANOSINE-3',5'-BIS DIPHOSPHATE 3'-PYROPHOSPHOHYDROLASE; 1.
DR   Pfam; PF13291; ACT_4; 1.
DR   Pfam; PF13328; HD_4; 1.
DR   Pfam; PF19296; RelA_AH_RIS; 1.
DR   Pfam; PF04607; RelA_SpoT; 1.
DR   Pfam; PF02824; TGS; 1.
DR   SMART; SM00471; HDc; 1.
DR   SMART; SM00954; RelA_SpoT; 1.
DR   SUPFAM; SSF55021; ACT-like; 1.
DR   SUPFAM; SSF109604; HD-domain/PDEase-like; 1.
DR   SUPFAM; SSF81301; Nucleotidyltransferase; 1.
DR   SUPFAM; SSF81271; TGS-like; 1.
DR   PROSITE; PS51671; ACT; 1.
DR   PROSITE; PS51831; HD; 1.
DR   PROSITE; PS51880; TGS; 1.
PE   3: Inferred from homology;
KW   ATP-binding; GTP-binding; Kinase; Nucleotide-binding; Reference proteome;
KW   Transferase.
FT   CHAIN           1..729
FT                   /note="GTP pyrophosphokinase"
FT                   /id="PRO_0000166562"
FT   DOMAIN          50..149
FT                   /note="HD"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01175"
FT   DOMAIN          393..454
FT                   /note="TGS"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01228"
FT   DOMAIN          655..729
FT                   /note="ACT"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01007"
SQ   SEQUENCE   729 AA;  83468 MW;  2EEE5C9BEF92E0DA CRC64;
     MNNEYPYSAD EVLYKAKSYL STSEYEYVLK SYHIAYEAHK GQFRKNGLPY IMHPIQVAGI
     LTEMRLDGPT IVAGFLHDVI EDTSYTFEDV KDMFNEEIAR IVDGVTKLKK VKYRSKEEQQ
     AENHRKLFIA IAKDVRVILV KLADRLHNMR TLKAMPREKQ VRISKETLEI YAPLAHRLGI
     NTIKWELEDT ALRYIDSVQY FRIVNLMKKK RSEREAYITN AINKIKNEMT KMNLSGEING
     RPKHIYSIYR KMIKQKKQFD QIFDLLAIRI IVNSINDCYA TLGLVHTLWK PMPGRFKDYI
     AMPKQNMYQS LHTTVVGPNG DPLEIQIRTH EMHEIAEHGV AAHWAYKEGK TVNQKTQDFQ
     NKLNWLKELA ETDHTSADAQ EFMESLKYDL QSDKVYAFTP ASDVIELPYG AVPIDFAYAI
     HSEVGNKMIG AKVNGKIVPI DYVLQTGDII EIRTSKHSYG PSRDWLKIVK SSSAKSKIKS
     FFKKQDRSSN IEKGKFMVEA EIKEQGFRVE DILTEKNLEV VNEKYHFAND EDLYAAVGFG
     GVTSIQIVNK LTERQRILDK QKALNEAQEV TKSVPIKKDI TTDSGVYVEG LENVLIKLSK
     CCNPIPGDDI VGYITKGHGI KVHRTDCPNI KNETDRLISV EWVKSKDSTQ QYQVDLEVTA
     YDRNGLLNEV LQAVNSTAGS LIKVSGRSDI DKNAVINISV MVKNVNDVYR VVEKIKQLGD
     VYTVSRVWN
//
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