ID   PFKA_BUCBP              Reviewed;         320 AA.
AC   P59563;
DT   11-APR-2003, integrated into UniProtKB/Swiss-Prot.
DT   11-APR-2003, sequence version 1.
DT   04-NOV-2026, entry version 136.
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};
GN   OrderedLocusNames=bbp_284;
OS   Buchnera aphidicola subsp. Baizongia pistaciae (strain Bp).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria;
OC   Enterobacterales; Erwiniaceae; Buchnera.
OX   NCBI_TaxID=224915;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Bp;
RX   PubMed=12522265; DOI=10.1073/pnas.0235981100;
RA   van Ham R.C.H.J., Kamerbeek J., Palacios C., Rausell C., Abascal F.,
RA   Bastolla U., Fernandez J.M., Jimenez L., Postigo M., Silva F.J.,
RA   Tamames J., Viguera E., Latorre A., Valencia A., Moran F., Moya A.;
RT   "Reductive genome evolution in Buchnera aphidicola.";
RL   Proc. Natl. Acad. Sci. U.S.A. 100:581-586(2003).
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=beta-D-fructose 6-phosphate + ATP = beta-D-fructose 1,6-
CC         bisphosphate + ADP + 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; AE016826; AAO27009.1; -; Genomic_DNA.
DR   RefSeq; WP_011091410.1; NC_004545.1.
DR   AlphaFoldDB; P59563; -.
DR   SMR; P59563; -.
DR   STRING; 224915.bbp_284; -.
DR   KEGG; bab:bbp_284; -.
DR   eggNOG; COG0205; Bacteria.
DR   HOGENOM; CLU_020655_0_1_6; -.
DR   OMA; AADNMRY; -.
DR   OrthoDB; 9802503at2; -.
DR   UniPathway; UPA00109; UER00182.
DR   Proteomes; UP000000601; Chromosome.
DR   GO; GO:0005945; C:6-phosphofructokinase complex; IEA:TreeGrafter.
DR   GO; GO:0003872; F:6-phosphofructokinase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0016208; F:AMP binding; IEA:TreeGrafter.
DR   GO; GO:0005524; F:ATP binding; IEA:InterPro.
DR   GO; GO:0070095; F:fructose-6-phosphate binding; IEA:TreeGrafter.
DR   GO; GO:0042802; F:identical protein binding; IEA:TreeGrafter.
DR   GO; GO:0048029; F:monosaccharide binding; IEA:TreeGrafter.
DR   GO; GO:0061621; P:canonical glycolysis; IEA:TreeGrafter.
DR   GO; GO:0030388; P:fructose 1,6-bisphosphate metabolic process; IEA:TreeGrafter.
DR   GO; GO:0006002; P:fructose 6-phosphate metabolic process; IEA:InterPro.
DR   FunFam; 3.40.50.450:FF:000001; ATP-dependent 6-phosphofructokinase; 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   NCBIfam; NF002872; PRK03202.1; 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; Reference proteome; Transferase.
FT   CHAIN           1..320
FT                   /note="ATP-dependent 6-phosphofructokinase"
FT                   /id="PRO_0000111942"
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         22..26
FT                   /ligand="ADP"
FT                   /ligand_id="ChEBI:CHEBI:456216"
FT                   /ligand_note="allosteric activator; ligand shared between
FT                   dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         55..60
FT                   /ligand="ADP"
FT                   /ligand_id="ChEBI:CHEBI:456216"
FT                   /ligand_note="allosteric activator; ligand shared between
FT                   dimeric partners"
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; ligand shared between
FT                   dimeric partners"
FT                   /note="in other chain"
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; ligand shared between
FT                   dimeric partners"
FT                   /note="in other chain"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         212
FT                   /ligand="ADP"
FT                   /ligand_id="ChEBI:CHEBI:456216"
FT                   /ligand_note="allosteric activator; ligand shared between
FT                   dimeric partners"
FT                   /note="in other chain"
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; ligand shared between
FT                   dimeric partners"
FT                   /note="in other chain"
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         244
FT                   /ligand="substrate"
FT                   /ligand_note="ligand shared between dimeric partners"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT   BINDING         250..253
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   320 AA;  35524 MW;  FBC9E334BFBF64EE CRC64;
     MIKRIGVLTS GGDAPGMNAA IRGVVRTALS RNLEVFGIYD GYLGLYENRM ILLDRYSVSD
     IINKGGTFLG SARFSNFFKK DIRSIAIKNM QQRNIDFLVV IGGDGSYVGA QKLTEMGFPC
     ISIPGTIDND VAGTDYTIGY FTALETVVEA IDRLRDTSSS HQRISIVEVM GRNCGDLTLS
     AAIAGGCEFI VLPEIEFTKE ELVKEIKNGI KKGKKHAIVA ITEYICNVEK LAKYIQRETC
     RETRATILGH IQRGGAPVVY DRILASRMGE YSVDILLQGF QGRCIGTINE KMVHHDISDA
     LKNMKRPFKF DWLKTAKQLY
//