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GUAC_STAEQ
ID   GUAC_STAEQ              Reviewed;         325 AA.
AC   Q5HPK5;
DT   29-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=GMP reductase {ECO:0000255|HAMAP-Rule:MF_01511};
DE            EC=1.7.1.7 {ECO:0000255|HAMAP-Rule:MF_01511};
DE   AltName: Full=Guanosine 5'-monophosphate oxidoreductase {ECO:0000255|HAMAP-Rule:MF_01511};
DE            Short=Guanosine monophosphate reductase {ECO:0000255|HAMAP-Rule:MF_01511};
GN   Name=guaC {ECO:0000255|HAMAP-Rule:MF_01511}; OrderedLocusNames=SERP0906;
OS   Staphylococcus epidermidis (strain ATCC 35984 / RP62A).
OC   Bacteria; Firmicutes; 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: Catalyzes the irreversible NADPH-dependent deamination of GMP
CC       to IMP. It functions in the conversion of nucleobase, nucleoside and
CC       nucleotide derivatives of G to A nucleotides, and in maintaining the
CC       intracellular balance of A and G nucleotides. {ECO:0000255|HAMAP-
CC       Rule:MF_01511}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=IMP + NADP(+) + NH4(+) = GMP + 2 H(+) + NADPH;
CC         Xref=Rhea:RHEA:17185, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:57783, ChEBI:CHEBI:58053, ChEBI:CHEBI:58115,
CC         ChEBI:CHEBI:58349; EC=1.7.1.7; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01511};
CC   -!- SIMILARITY: Belongs to the IMPDH/GMPR family. GuaC type 2 subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_01511}.
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DR   EMBL; CP000029; AAW54273.1; -; Genomic_DNA.
DR   RefSeq; WP_001832645.1; NC_002976.3.
DR   AlphaFoldDB; Q5HPK5; -.
DR   SMR; Q5HPK5; -.
DR   STRING; 176279.SERP0906; -.
DR   EnsemblBacteria; AAW54273; AAW54273; SERP0906.
DR   GeneID; 50018853; -.
DR   KEGG; ser:SERP0906; -.
DR   eggNOG; COG0516; Bacteria.
DR   HOGENOM; CLU_022552_5_0_9; -.
DR   OMA; AYKEYFG; -.
DR   OrthoDB; 532857at2; -.
DR   Proteomes; UP000000531; Chromosome.
DR   GO; GO:1902560; C:GMP reductase complex; IEA:InterPro.
DR   GO; GO:0003920; F:GMP reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006163; P:purine nucleotide metabolic process; IEA:UniProtKB-UniRule.
DR   CDD; cd00381; IMPDH; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   HAMAP; MF_01511; GMP_reduct_type2; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR005994; GuaC_type_2.
DR   InterPro; IPR015875; IMP_DH/GMP_Rdtase_CS.
DR   InterPro; IPR001093; IMP_DH_GMPRt.
DR   Pfam; PF00478; IMPDH; 1.
DR   PIRSF; PIRSF036500; GMP_red_Firmic; 1.
DR   TIGRFAMs; TIGR01306; GMP_reduct_2; 1.
DR   PROSITE; PS00487; IMP_DH_GMP_RED; 1.
PE   3: Inferred from homology;
KW   NADP; Oxidoreductase; Reference proteome.
FT   CHAIN           1..325
FT                   /note="GMP reductase"
FT                   /id="PRO_0000093770"
FT   ACT_SITE        174
FT                   /note="Thioimidate intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
FT   BINDING         203..226
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01511"
SQ   SEQUENCE   325 AA;  36126 MW;  E135E18B779A22E4 CRC64;
     MKIFDYEDIQ LIPNKCIVES RSECNTSVKF GPRTFKLPVV PANMQTVMNE ELAQWFAEND
     YFYIMHRFNE ENRIPFIKKM HHAGLFASIS VGVKENEFNF IEKLASSSLI PEYITIDIAH
     GHSNSVINMI KHIKKHLPNS FVIAGNVGTP EGVRELENAG ADATKVGIGP GRVCITKIKT
     GFGTGGWQLS ALNLCNKAAR KPIIADGGLR THGDIAKSIR FGATMVMIGS LFAAHEESPG
     ETVELDGKKY KEYFGSASEY QKGEHKNVEG KKMFVEHKGS LKDTLTEMEQ DLQSSISYAG
     GKDLKSLRTV DYVIVRNSIF NGDRD
 
 
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