ID   PFKA_SPICI              Reviewed;         327 AA.
AC   P20275;
DT   01-FEB-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 2.
DT   27-MAR-2024, entry version 111.
DE   RecName: Full=ATP-dependent 6-phosphofructokinase {ECO:0000255|HAMAP-Rule:MF_00339};
DE            Short=ATP-PFK {ECO:0000255|HAMAP-Rule:MF_00339};
DE            Short=Phosphofructokinase {ECO:0000255|HAMAP-Rule:MF_00339};
DE            EC=2.7.1.11 {ECO:0000255|HAMAP-Rule:MF_00339};
DE   AltName: Full=Phosphohexokinase {ECO:0000255|HAMAP-Rule:MF_00339};
GN   Name=pfkA {ECO:0000255|HAMAP-Rule:MF_00339};
OS   Spiroplasma citri.
OC   Bacteria; Mycoplasmatota; Mollicutes; Entomoplasmatales; Spiroplasmataceae;
OC   Spiroplasma.
OX   NCBI_TaxID=2133;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 27556 / NCPPB 2647 / R8A2;
RX   PubMed=2139649; DOI=10.1128/jb.172.5.2693-2703.1990;
RA   Chevalier C., Saillard C., Bove J.M.;
RT   "Organization and nucleotide sequences of the Spiroplasma citri genes for
RT   ribosomal protein S2, elongation factor Ts, spiralin, phosphofructokinase,
RT   pyruvate kinase, and an unidentified protein.";
RL   J. Bacteriol. 172:2693-2703(1990).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 27556 / NCPPB 2647 / R8A2;
RX   PubMed=9732535; DOI=10.1007/s002849900377;
RA   Le Dantec L., Bove J.M., Saillard C.;
RT   "Gene organization and transcriptional analysis of the Spiroplasma citri
RT   rpsB/tsf/x operon.";
RL   Curr. Microbiol. 37:269-273(1998).
CC   -!- FUNCTION: Catalyzes the phosphorylation of D-fructose 6-phosphate to
CC       fructose 1,6-bisphosphate by ATP, the first committing step of
CC       glycolysis. {ECO:0000255|HAMAP-Rule:MF_00339}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + beta-D-fructose 6-phosphate = ADP + beta-D-fructose 1,6-
CC         bisphosphate + H(+); Xref=Rhea:RHEA:16109, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:32966, ChEBI:CHEBI:57634,
CC         ChEBI:CHEBI:456216; EC=2.7.1.11; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00339};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00339};
CC   -!- ACTIVITY REGULATION: Allosterically activated by ADP and other
CC       diphosphonucleosides, and allosterically inhibited by
CC       phosphoenolpyruvate. {ECO:0000255|HAMAP-Rule:MF_00339}.
CC   -!- PATHWAY: Carbohydrate degradation; glycolysis; D-glyceraldehyde 3-
CC       phosphate and glycerone phosphate from D-glucose: step 3/4.
CC       {ECO:0000255|HAMAP-Rule:MF_00339}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00339}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00339}.
CC   -!- SIMILARITY: Belongs to the phosphofructokinase type A (PFKA) family.
CC       ATP-dependent PFK group I subfamily. Prokaryotic clade 'B1' sub-
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00339}.
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DR   EMBL; AF012877; AAB69998.1; -; Genomic_DNA.
DR   PIR; E35270; E35270.
DR   RefSeq; WP_071937534.1; NZ_CP096808.1.
DR   AlphaFoldDB; P20275; -.
DR   SMR; P20275; -.
DR   STRING; 2133.SCITRI_001128; -.
DR   GeneID; 54238989; -.
DR   OrthoDB; 9802503at2; -.
DR   UniPathway; UPA00109; UER00182.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003872; F:6-phosphofructokinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0006002; P:fructose 6-phosphate metabolic process; IEA:InterPro.
DR   CDD; cd00763; Bacterial_PFK; 1.
DR   Gene3D; 3.40.50.450; -; 1.
DR   Gene3D; 3.40.50.460; Phosphofructokinase domain; 1.
DR   HAMAP; MF_00339; Phosphofructokinase_I_B1; 1.
DR   InterPro; IPR022953; ATP_PFK.
DR   InterPro; IPR012003; ATP_PFK_prok-type.
DR   InterPro; IPR012828; PFKA_ATP_prok.
DR   InterPro; IPR015912; Phosphofructokinase_CS.
DR   InterPro; IPR000023; Phosphofructokinase_dom.
DR   InterPro; IPR035966; PKF_sf.
DR   NCBIfam; TIGR02482; PFKA_ATP; 1.
DR   PANTHER; PTHR13697:SF4; ATP-DEPENDENT 6-PHOSPHOFRUCTOKINASE; 1.
DR   PANTHER; PTHR13697; PHOSPHOFRUCTOKINASE; 1.
DR   Pfam; PF00365; PFK; 1.
DR   PIRSF; PIRSF000532; ATP_PFK_prok; 1.
DR   PRINTS; PR00476; PHFRCTKINASE.
DR   SUPFAM; SSF53784; Phosphofructokinase; 1.
DR   PROSITE; PS00433; PHOSPHOFRUCTOKINASE; 1.
PE   3: Inferred from homology;
KW   Allosteric enzyme; ATP-binding; Cytoplasm; Glycolysis; Kinase; Magnesium;
KW   Metal-binding; Nucleotide-binding; Transferase.
FT   CHAIN           1..327
FT                   /note="ATP-dependent 6-phosphofructokinase"
FT                   /id="PRO_0000111975"
FT   ACT_SITE        128
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         12
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         73..74
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         103..106
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         104
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_note="catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         126..128
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         155
FT                   /ligand="ADP"
FT                   /ligand_id="ChEBI:CHEBI:456216"
FT                   /ligand_note="allosteric activator"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         163
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         170..172
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         186..188
FT                   /ligand="ADP"
FT                   /ligand_id="ChEBI:CHEBI:456216"
FT                   /ligand_note="allosteric activator"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         214..216
FT                   /ligand="ADP"
FT                   /ligand_id="ChEBI:CHEBI:456216"
FT                   /ligand_note="allosteric activator"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         223
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         245
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         251..254
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
SQ   SEQUENCE   327 AA;  35197 MW;  19D9D47E176FE2F6 CRC64;
     MLKKIGILTS GGDSQGMNAA IAGVIKTAHA KGLETYIIRD GYLGLINNWI EVVDNNFADS
     IMLLGGTVIG SARLPEFKDP EVQKKAVDIL KKQEIAALVV IGGDGSYQGA QRLTELGINC
     IALPGTIDND ITSSDYTIGF DTAINIVVEA IDRLRDTMQS HNRCSIVEVM GHACGDIALY
     AGIAGGADII SINEAALSET EIADRVAMLH QAQKRSVIVV VSEMIYPDVH KLAKLVESKS
     GYITRATVLG HTQRGGNPTA MDRYRAFQMA QFAVEQIIAG VGGLAIGNQG DQIIARPIME
     ALSIPRSSRK EIWAKFDQLN QNIYQKS
//