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Literature summary for 2.7.7.9 extracted from

  • Bosco, M.B.; Machtey, M.; Iglesias, A.A.; Aleanzi, M.
    UDPglucose pyrophosphorylase from Xanthomonas spp. Characterization of the enzyme kinetics, structure and inactivation related to oligomeric dissociation (2009), Biochimie, 91, 204-213.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
expressed in Escherichia coli BL21(DE3) Xanthomonas campestris pv. campestris
expressed in Escherichia coli BL21(DE3) Xanthomonas citri

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.06
-
alpha-D-glucose 1-phosphate
-
Xanthomonas campestris pv. campestris
0.11
-
UTP
-
Xanthomonas citri
0.21
-
UTP
-
Xanthomonas campestris pv. campestris
0.35
-
TTP
-
Xanthomonas citri
0.36
-
TTP
-
Xanthomonas campestris pv. campestris
0.48
-
diphosphate
-
Xanthomonas campestris pv. campestris
0.58
-
Mg2+ pyrophosphorolysis direction Xanthomonas campestris pv. campestris
0.99
-
UDP-glucose
-
Xanthomonas campestris pv. campestris
1.11
-
Mg2+
-
Xanthomonas campestris pv. campestris

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
32000
-
2 * 32000, SDS-PAGE, oligomerization detected after crosslinking Xanthomonas campestris pv. campestris

Organism

Organism UniProt Comment Textmining
Xanthomonas campestris pv. campestris A0A0H2X8N4
-
-
Xanthomonas citri Q8PK83
-
-

Purification (Commentary)

Purification (Comment) Organism
ammonium sulfate fractionation, ion-exchange chromatography (DEAE) Xanthomonas campestris pv. campestris
ammonium sulfate fractionation, ion-exchange chromatography (DEAE) Xanthomonas citri

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
TTP + alpha-D-glucose 1-phosphate
-
Xanthomonas campestris pv. campestris TDP-glucose + diphosphate
-
r
TTP + alpha-D-glucose 1-phosphate
-
Xanthomonas citri TDP-glucose + diphosphate
-
r
UTP + alpha-D-glucose 1-phosphate in the presence of a divalent metal cation (mainly Mg2+) Xanthomonas campestris pv. campestris UDP-glucose + diphosphate
-
r
UTP + alpha-D-glucose 1-phosphate in the presence of a divalent metal cation (mainly Mg2+) Xanthomonas citri UDP-glucose + diphosphate
-
r

Subunits

Subunits Comment Organism
homodimer 2 * 32000, SDS-PAGE, oligomerization detected after crosslinking Xanthomonas campestris pv. campestris

Synonyms

Synonyms Comment Organism
UDPglucose pyrophosphorylase
-
Xanthomonas campestris pv. campestris
UDPglucose pyrophosphorylase
-
Xanthomonas citri

Turnover Number [1/s]

Turnover Number Minimum [1/s] Turnover Number Maximum [1/s] Substrate Comment Organism Structure
6.8
-
TTP
-
Xanthomonas campestris pv. campestris
10
-
TTP
-
Xanthomonas citri
29.3
-
UTP
-
Xanthomonas citri
40
-
UTP
-
Xanthomonas campestris pv. campestris

pI Value

Organism Comment pI Value Maximum pI Value
Xanthomonas campestris pv. campestris calculated
-
5.45
Xanthomonas citri calculated
-
5.64

kcat/KM [mM/s]

kcat/KM Value [1/mMs-1] kcat/KM Value Maximum [1/mMs-1] Substrate Comment Organism Structure
18.3
-
TTP
-
Xanthomonas campestris pv. campestris
28.3
-
TTP
-
Xanthomonas citri
183.3
-
UTP
-
Xanthomonas campestris pv. campestris
266.7
-
UTP
-
Xanthomonas citri