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Information on EC 4.1.2.22 - fructose-6-phosphate phosphoketolase and Organism(s) Lactococcus lactis and UniProt Accession Q9CFH4

for references in articles please use BRENDA:EC4.1.2.22
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EC Tree
     4 Lyases
         4.1 Carbon-carbon lyases
             4.1.2 Aldehyde-lyases
                4.1.2.22 fructose-6-phosphate phosphoketolase
IUBMB Comments
Also acts on D-xylulose 5-phosphate.
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This record set is specific for:
Lactococcus lactis
UNIPROT: Q9CFH4
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The taxonomic range for the selected organisms is: Lactococcus lactis
The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
fructose-6-phosphate phosphoketolase, f6ppk, xylulose-5-phosphate/fructose-6-phosphate phosphoketolase, xylulose 5-phosphate/fructose 6-phosphate phosphoketolase, all1483, all2567, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
F6PPK
-
-
-
-
Fructose-6-phosphate phosphoketolase
-
-
-
-
Phosphoketolase, fructose 6-phosphate
-
-
-
-
X5P/F6P PK
-
-
SYSTEMATIC NAME
IUBMB Comments
D-fructose-6-phosphate D-erythrose-4-phosphate-lyase (adding phosphate; acetyl-phosphate-forming)
Also acts on D-xylulose 5-phosphate.
CAS REGISTRY NUMBER
COMMENTARY hide
37290-57-6
-
SUBSTRATE
PRODUCT                       
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
Reversibility
r=reversible
ir=irreversible
?=not specified
D-Fructose 6-phosphate + phosphate
Acetyl phosphate + D-erythrose 4-phosphate + H2O
show the reaction diagram
-
-
-
-
?
D-Xylulose 5-phosphate + phosphate
Acetyl phosphate + D-glyceraldehyde 3-phosphate + H2O
show the reaction diagram
-
preferred substrate
-
-
?
NATURAL SUBSTRATE
NATURAL PRODUCT
REACTION DIAGRAM
ORGANISM
UNIPROT
COMMENTARY
(Substrate) hide
LITERATURE
(Substrate)
COMMENTARY
(Product) hide
LITERATURE
(Product)
REVERSIBILITY
r=reversible
ir=irreversible
?=not specified
D-Fructose 6-phosphate + phosphate
Acetyl phosphate + D-erythrose 4-phosphate + H2O
show the reaction diagram
-
-
-
-
?
D-Xylulose 5-phosphate + phosphate
Acetyl phosphate + D-glyceraldehyde 3-phosphate + H2O
show the reaction diagram
-
preferred substrate
-
-
?
COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
thiamine diphosphate
-
-
KM VALUE [mM]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
9.89
D-fructose 6-phosphate
-
at pH 6.5 and 37°C
3.04
D-xylulose 5-phosphate
-
at pH 6.5 and 37°C
TURNOVER NUMBER [1/s]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
117.76
D-fructose 6-phosphate
-
at pH 6.5 and 37°C
587.76
D-xylulose 5-phosphate
-
at pH 6.5 and 37°C
kcat/KM VALUE [1/mMs-1]
SUBSTRATE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
11.9
D-fructose 6-phosphate
-
at pH 6.5 and 37°C
193.15
D-xylulose 5-phosphate
-
at pH 6.5 and 37°C
pH OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
TEMPERATURE OPTIMUM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
TEMPERATURE RANGE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
30 - 40
-
the activity sharply decreases at 30 and 40°C to approximately 60% of the maximum specific activity observed at 37°C
SUBUNIT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
?
-
x * 95700, SDS-PAGE
PURIFICATION (Commentary)
ORGANISM
UNIPROT
LITERATURE
CLONED (Commentary)
ORGANISM
UNIPROT
LITERATURE
expressed in Escherichia coli BL21(DE3)RIL cells
-
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Petrareanu, G.; Balasu, M.; Vacaru, A.; Munteanu, C.; Ionescu, A.; Matei, I.; Szedlacsek, S.
Phosphoketolases from Lactococcus lactis, Leuconostoc mesenteroides and Pseudomonas aeruginosa Dissimilar sequences, similar substrates but distinct enzymatic characteristics
Appl. Microbiol. Biotechnol.
98
7855-7867
2014
Lactococcus lactis, Lactococcus lactis subsp. lactis (Q9CFH4), Lactococcus lactis subsp. lactis IL1403 (Q9CFH4), Leuconostoc mesenteroides, Leuconostoc mesenteroides subsp. mesenteroides, Leuconostoc mesenteroides subsp. mesenteroides J18, Pseudomonas aeruginosa, Pseudomonas aeruginosa (Q9HY13)
Manually annotated by BRENDA team