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Literature summary for 2.1.1.107 extracted from

  • Leustek, T.; Smith, M.; Murillo, M.; Singh, D.P.; Smith, A.G.; Woodcock, S.C.; Awan, S.J.; Warren, M.J.
    Siroheme biosynthesis in higher plants. Analysis of an S-adenosyl-L-methionine-dependent uroporphyrinogen III methyltransferase from Arabidopsis thaliana (1997), J. Biol. Chem., 272, 2744-2752.
    View publication on PubMed

Cloned(Commentary)

Cloned (Comment) Organism
in Escherichia coli CBK103, amino acids 202-457 responsible for EC 2.1.1.107 activity Arabidopsis thaliana

General Stability

General Stability Organism
complete loss of activity when treated with Triton X-100 Arabidopsis thaliana

Localization

Localization Comment Organism GeneOntology No. Textmining
chloroplast
-
Arabidopsis thaliana 9507
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Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
39900
-
calculated from DNA sequence Arabidopsis thaliana
41000
-
SDS-PAGE Arabidopsis thaliana
67000
-
SDS-PAGE, uncleaved fusion protein Arabidopsis thaliana

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
2 S-adenosyl-L-methionine + uroporphyrinogen III Arabidopsis thaliana involved in biosynthesis of siroheme 2 S-adenosyl-L-homocysteine + dihydrosirohydrochlorin + 2 H+ product is precorrin-2 ?
2 S-adenosyl-L-methionine + uroporphyrinogen III Arabidopsis thaliana no synthesis of cobalamin 2 S-adenosyl-L-homocysteine + dihydrosirohydrochlorin + 2 H+ product is precorrin-2 ?

Organism

Organism UniProt Comment Textmining
Arabidopsis thaliana Q96532 genomic DNA, cDNA has accession number L47479
-

Purification (Commentary)

Purification (Comment) Organism
from recombinant E. coli Arabidopsis thaliana

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0091
-
purified enzyme Arabidopsis thaliana

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
2 S-adenosyl-L-methionine + uroporphyrinogen III
-
Arabidopsis thaliana 2 S-adenosyl-L-homocysteine + dihydrosirohydrochlorin + 2 H+ product is precorrin-2 ?
2 S-adenosyl-L-methionine + uroporphyrinogen III involved in biosynthesis of siroheme Arabidopsis thaliana 2 S-adenosyl-L-homocysteine + dihydrosirohydrochlorin + 2 H+ product is precorrin-2 ?
2 S-adenosyl-L-methionine + uroporphyrinogen III no synthesis of cobalamin Arabidopsis thaliana 2 S-adenosyl-L-homocysteine + dihydrosirohydrochlorin + 2 H+ product is precorrin-2 ?
additional information no formation of sirohydrochlorin in presence of NAD+ or NADP+ Arabidopsis thaliana ?
-
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