PFKA1_LACLL
ID PFKA1_LACLL Reviewed; 340 AA.
AC P0DOB6; Q07636;
DT 07-SEP-2016, integrated into UniProtKB/Swiss-Prot.
DT 07-SEP-2016, sequence version 1.
DT 03-AUG-2022, entry version 21.
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}; Synonyms=pfk;
OS Lactococcus lactis subsp. lactis (Streptococcus lactis).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Lactococcus.
OX NCBI_TaxID=1360;
RN [1]
RP PROTEIN SEQUENCE.
RC STRAIN=C10;
RX PubMed=8333872; DOI=10.1006/bbrc.1993.1785;
RA Xiao Q., Moore C.H.;
RT "The primary structure of phosphofructokinase from Lactococcus lactis.";
RL Biochem. Biophys. Res. Commun. 194:65-71(1993).
RN [2]
RP FUNCTION, CATALYTIC ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES, AND SUBUNIT.
RC STRAIN=C10;
RX PubMed=6218377; DOI=10.1016/s0076-6879(82)90109-4;
RA Fordyce A.M., Moore C.H., Pritchard G.G.;
RT "Phosphofructokinase from Streptococcus lactis.";
RL Methods Enzymol. 90:77-82(1982).
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 ECO:0000269|PubMed:6218377}.
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, ECO:0000269|PubMed:6218377};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-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 -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC Kinetic parameters:
CC KM=0.18 mM for ATP {ECO:0000269|PubMed:6218377};
CC KM=0.25 mM for fructose 6-phosphate {ECO:0000269|PubMed:6218377};
CC pH dependence:
CC Optimum pH is 7.2-7.8. {ECO:0000269|PubMed:6218377};
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 ECO:0000269|PubMed:6218377}.
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 PIR; A40620; JN0614.
DR AlphaFoldDB; P0DOB6; -.
DR SMR; P0DOB6; -.
DR BioCyc; MetaCyc:MON-13044; -.
DR UniPathway; UPA00109; UER00182.
DR GO; GO:0009986; C:cell surface; IDA:CAFA.
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:2001065; F:mannan binding; IDA:CAFA.
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; 3.40.50.460; -; 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 Pfam; PF00365; PFK; 1.
DR PIRSF; PIRSF000532; ATP_PFK_prok; 1.
DR PRINTS; PR00476; PHFRCTKINASE.
DR SUPFAM; SSF53784; SSF53784; 1.
DR TIGRFAMs; TIGR02482; PFKA_ATP; 1.
DR PROSITE; PS00433; PHOSPHOFRUCTOKINASE; 1.
PE 1: Evidence at protein level;
KW Allosteric enzyme; ATP-binding; Cytoplasm; Direct protein sequencing;
KW Glycolysis; Kinase; Magnesium; Metal-binding; Nucleotide-binding;
KW Transferase.
FT CHAIN 1..340
FT /note="ATP-dependent 6-phosphofructokinase"
FT /id="PRO_0000437187"
FT ACT_SITE 127
FT /note="Proton acceptor"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT BINDING 11
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT BINDING 21..25
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 72..73
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT BINDING 102..105
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT BINDING 103
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT BINDING 125..127
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 154
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 162
FT /ligand="substrate"
FT /ligand_note="ligand shared between dimeric partners"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00339"
FT BINDING 169..171
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 185..187
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 211
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 213..215
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 222
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 340 AA; 35775 MW; F327C4BCCE37371E CRC64;
MKRIAVLTSG GDAPGMNAAI RAVVRKAISE GIEVYGINHG YAGMVAGDIF PLTSASVGDK
IGRGGTFLYS ARYPEFAQVE GQLAGIEQLK KFGIEGVVVI GGDGSYHGAM RLTEHGFPAV
GLPGTIDNDI VGTDFTIGFD TAVSTVVDAL DKIRDTSSSH NRTFVVEVMG RNAGDIALNA
GIAAGADDIS IPELEFKFEN VVNNINKGYE KGKNHHIIIV AEGVMTGEEF ATKLKEAGYK
GDLRVSVLGH IQRGGSPTAR DRVLASRMGA RAVELLRDGI GGVAVGIRNE ELVESPILGT
AEEGALFSLT TEGGIKVNNP HKAGLELYRL NSALNNLNLN
