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Literature summary extracted from

  • Noji, M.; Inoue, K.; Kimura, N.; Gouda, A.; Saito, K.
    Isoform-dependent differences in feedback regulation and subcellular localization of serine acetyltransferase involved in cysteine biosynthesis from Arabidopsis thaliana (1998), J. Biol. Chem., 273, 32739-32745.
    View publication on PubMed

Cloned(Commentary)

EC Number Cloned (Comment) Organism
2.3.1.30 expression of 3 isozymes SAT-m, SAT-p, SAT-c as GFP-fusion proteins in Arabidopsis thaliana Arabidopsis thaliana
2.3.1.30 overexpression of 3 isozymes SAT-m, SAT-p, SAT-c in Escherichia coli BL21 (DE3) Arabidopsis thaliana

Inhibitors

EC Number Inhibitors Comment Organism Structure
2.3.1.30 L-cysteine feed-back inhibition of cytosolic isozyme SAT-c, not of mitochondrial and plastidic isozymes SAT-m and SAT-p Arabidopsis thaliana

KM Value [mM]

EC Number KM Value [mM] KM Value Maximum [mM] Substrate Comment Organism Structure
2.3.1.30 0.02
-
acetyl-CoA mitochondrial isozyme SAT-m Arabidopsis thaliana
2.3.1.30 0.16
-
acetyl-CoA chloroplastidic isozyme SAT-p Arabidopsis thaliana
2.3.1.30 0.28
-
acetyl-CoA cytosolic isozyme SAT-c Arabidopsis thaliana
2.3.1.30 1.64
-
L-serine chloroplastidic isozyme SAT-p Arabidopsis thaliana
2.3.1.30 1.68
-
L-serine mitochondrial isozyme SAT-m Arabidopsis thaliana
2.3.1.30 2.71
-
L-serine cytosolic isozyme SAT-c Arabidopsis thaliana

Localization

EC Number Localization Comment Organism GeneOntology No. Textmining
2.3.1.30 chloroplast isozyme SAT-p, stroma Arabidopsis thaliana 9507
-
2.3.1.30 cytosol isozyme SAT-c Arabidopsis thaliana 5829
-
2.3.1.30 mitochondrion isozyme SAT-m, matrix Arabidopsis thaliana 5739
-

Natural Substrates/ Products (Substrates)

EC Number Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2.3.1.30 acetyl-CoA + L-serine Arabidopsis thaliana regulatory role in cysteine biosynthesis CoA + O-acetyl-L-serine
-
?

Organism

EC Number Organism UniProt Comment Textmining
2.3.1.30 Arabidopsis thaliana
-
3 isozymes specific for subcellular compartment: SAT-c, SAT-m, SAT-p
-

Purification (Commentary)

EC Number Purification (Comment) Organism
2.3.1.30 partially, recombinant isozymes SAT-p, SAT-m, and SAT-c from E. coli Arabidopsis thaliana

Source Tissue

EC Number Source Tissue Comment Organism Textmining
2.3.1.30 leaf SAT-c, SAT-m, SAT-p Arabidopsis thaliana
-

Substrates and Products (Substrate)

EC Number Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2.3.1.30 acetyl-CoA + L-serine
-
Arabidopsis thaliana CoA + O-acetyl-L-serine
-
?
2.3.1.30 acetyl-CoA + L-serine regulatory role in cysteine biosynthesis Arabidopsis thaliana CoA + O-acetyl-L-serine
-
?

Subunits

EC Number Subunits Comment Organism
2.3.1.30 ? x * 33000-36500, 3 recombinant isozymes, SDS-PAGE Arabidopsis thaliana

Ki Value [mM]

EC Number Ki Value [mM] Ki Value maximum [mM] Inhibitor Comment Organism Structure
2.3.1.30 0.0074
-
L-cysteine versus acetyl-CoA, isozyme SAT-c Arabidopsis thaliana
2.3.1.30 0.0108
-
L-cysteine versus L-serine, isozyme SAT-c Arabidopsis thaliana