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Literature summary for 2.4.1.13 extracted from

  • Baroja-Fernandez, E.; Munoz, F.J.; Li, J.; Bahaji, A.; Almagro, G.; Montero, M.; Etxeberria, E.; Hidalgo, M.; Sesma, M.T.; Pozueta-Romero, J.
    Sucrose synthase activity in the sus1/sus2/sus3/sus4 Arabidopsis mutant is sufficient to support normal cellulose and starch production (2012), Proc. Natl. Acad. Sci. USA, 109, 321-326.
    View publication on PubMedView publication on EuropePMC
Search for more literature for 2.4.1.13

KM Value [mM]

KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
0.15
-
 ADP pH 7.0, 37°C Arabidopsis thaliana
0.17
-
 ADP pH 7.0, 37°C Arabidopsis thaliana
0.25
-
 UDP pH 7.0, 37°C Arabidopsis thaliana
0.39
-
 UDP pH 7.0, 37°C Arabidopsis thaliana
48
-
 sucrose cosubstrate UDP, pH 7.0, 37°C Arabidopsis thaliana
53
-
 sucrose cosubstrate UDP, pH 7.0, 37°C Arabidopsis thaliana
145
-
 sucrose cosubstrate ADP, pH 7.0, 37°C Arabidopsis thaliana
185
-
 sucrose cosubstrate ADP, pH 7.0, 37°C Arabidopsis thaliana

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana P49040 isoform SUS1
-
Arabidopsis thaliana Q9M111 isoform Sus3
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
ADP + sucrose
-
 Arabidopsis thaliana ADP-glucose + D-fructose
-
 r
UDP + sucrose
-
 Arabidopsis thaliana UDP-glucose + D-fructose
-
 r

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
7
-
 recombinant isoforms SUS1 and SUS3 Arabidopsis thaliana

pH Range

pH Minimum pH Maximum Comment Organism
9.5
-
 about 10-15% of maximum activity Arabidopsis thaliana

General Information

General Information Comment Organism
physiological function mutant lacking isoforms sus1/sus2/sus3/sus4 displays wild-type SUS5 and SUS6 expression levels in leaf, whereas leaves of the sus5/sus6 mutant display wild-type SUS1-4 expression levels. Sucrose synthase activity in leaves and stems of the sus1/sus2/sus3/sus4 and sus5/sus6 plants is about 85% of that of wild-type leaves, which can support normal cellulose and starch biosynthesis Arabidopsis thaliana