ID   KGUA_SYNSC              Reviewed;         185 AA.
AC   Q3ALX6;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   27-MAR-2024, entry version 94.
DE   RecName: Full=Guanylate kinase {ECO:0000255|HAMAP-Rule:MF_00328};
DE            EC=2.7.4.8 {ECO:0000255|HAMAP-Rule:MF_00328};
DE   AltName: Full=GMP kinase {ECO:0000255|HAMAP-Rule:MF_00328};
GN   Name=gmk {ECO:0000255|HAMAP-Rule:MF_00328};
GN   OrderedLocusNames=Syncc9605_0632;
OS   Synechococcus sp. (strain CC9605).
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae;
OC   Synechococcus.
OX   NCBI_TaxID=110662;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CC9605;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Schmutz J., Martinez M., Larimer F.,
RA   Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Synechococcus sp. CC9605.";
RL   Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Essential for recycling GMP and indirectly, cGMP.
CC       {ECO:0000255|HAMAP-Rule:MF_00328}.
CC   -!- FUNCTION: (Microbial infection) Catalyzes the phosphorylation of dZMP
CC       to dZDP, when the bacterium is infected by a phage that produces the
CC       substrate for the synthesis of dZTP (2- amino-2'-deoxyadenosine 5'-
CC       triphosphate), which is then used by the phage as a DNA polymerase
CC       substrate. {ECO:0000250|UniProtKB:Q9KNM4}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + GMP = ADP + GDP; Xref=Rhea:RHEA:20780,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:58115, ChEBI:CHEBI:58189,
CC         ChEBI:CHEBI:456216; EC=2.7.4.8; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00328};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + dZMP = ADP + dZDP; Xref=Rhea:RHEA:67640,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:172927, ChEBI:CHEBI:172929,
CC         ChEBI:CHEBI:456216; Evidence={ECO:0000250|UniProtKB:Q9KNM4};
CC   -!- PATHWAY: Purine metabolism. {ECO:0000250|UniProtKB:Q9KNM4}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00328}.
CC   -!- SIMILARITY: Belongs to the guanylate kinase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00328}.
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DR   EMBL; CP000110; ABB34406.1; -; Genomic_DNA.
DR   RefSeq; WP_011363635.1; NC_007516.1.
DR   AlphaFoldDB; Q3ALX6; -.
DR   SMR; Q3ALX6; -.
DR   STRING; 110662.Syncc9605_0632; -.
DR   KEGG; syd:Syncc9605_0632; -.
DR   eggNOG; COG0194; Bacteria.
DR   HOGENOM; CLU_001715_1_1_3; -.
DR   OrthoDB; 9808150at2; -.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004385; F:guanylate kinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016310; P:phosphorylation; IEA:UniProtKB-KW.
DR   CDD; cd00071; GMPK; 1.
DR   Gene3D; 3.30.63.10; Guanylate Kinase phosphate binding domain; 1.
DR   Gene3D; 3.40.50.300; P-loop containing nucleotide triphosphate hydrolases; 1.
DR   HAMAP; MF_00328; Guanylate_kinase; 1.
DR   InterPro; IPR008145; GK/Ca_channel_bsu.
DR   InterPro; IPR008144; Guanylate_kin-like_dom.
DR   InterPro; IPR017665; Guanylate_kinase.
DR   InterPro; IPR020590; Guanylate_kinase_CS.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   NCBIfam; TIGR03263; guanyl_kin; 1.
DR   PANTHER; PTHR23117:SF13; GUANYLATE KINASE; 1.
DR   PANTHER; PTHR23117; GUANYLATE KINASE-RELATED; 1.
DR   Pfam; PF00625; Guanylate_kin; 1.
DR   SMART; SM00072; GuKc; 1.
DR   SUPFAM; SSF52540; P-loop containing nucleoside triphosphate hydrolases; 1.
DR   PROSITE; PS00856; GUANYLATE_KINASE_1; 1.
DR   PROSITE; PS50052; GUANYLATE_KINASE_2; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Kinase; Nucleotide-binding; Transferase.
FT   CHAIN           1..185
FT                   /note="Guanylate kinase"
FT                   /id="PRO_0000266421"
FT   DOMAIN          5..183
FT                   /note="Guanylate kinase-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00328"
FT   BINDING         12..19
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00328"
SQ   SEQUENCE   185 AA;  20507 MW;  CEEA89A225860217 CRC64;
     MSTSGKLTLI TGPSGVGKGT LVNQLLERHP QIWLSVSATT RSPRQGEQDG INYFFHSRAG
     FEALVEQGGF LEWAEFAGNC YGTPRGPVEQ QMAAGRPVLL EIELEGARQV RRSFPDGFQI
     FLAPPSFDEL ERRIRGRGTD SEDAIQRRLT RAREELEAQQ EFDAVVINDD LESALNQVET
     LMGLG
//