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Literature summary for 1.3.1.111 extracted from

  • Bollivar, D.
    Molecular genetic analysis of terminal steps in bacteriochlorophyll a biosynthesis: characterization of a Rhodobacter capsulatus strain that synthesizes geranylgeraniol-esterified bacteriochlorophyll a (1994), Biochemistry, 33, 12763-12768.
    View publication on PubMed
Search for more literature for 1.3.1.111

Cloned(Commentary)

Cloned (Comment) Organism
gene bchP, recombinant expression in Escherichia coli and in the plasmid-mobilizing Rhodobacter capsulatus strain TecS Rhodobacter capsulatus

Protein Variants

Protein Variants Comment Organism
additional information construction of a chromosomal KmR insertion mutation of gene bchP performed by GTA-mediated homologous recombination Rhodobacter capsulatus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
bacteriochlorophyll a + 3 NADP+ Rhodobacter capsulatus
-
 geranylgeranyl bacteriochlorophyllide a + 3 NADPH + 3 H+
-
 ?
bacteriochlorophyll a + 3 NADP+ Rhodobacter capsulatus SB1003
-
 geranylgeranyl bacteriochlorophyllide a + 3 NADPH + 3 H+
-
 ?

Organism

Organism UniProt Comment Textmining
Rhodobacter capsulatus Q9Z5D4 gene bchP
-
Rhodobacter capsulatus SB1003 Q9Z5D4 gene bchP
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
bacteriochlorophyll a + 3 NADP+
-
 Rhodobacter capsulatus geranylgeranyl bacteriochlorophyllide a + 3 NADPH + 3 H+
-
 ?
bacteriochlorophyll a + 3 NADP+ three reductive steps, overview Rhodobacter capsulatus geranylgeranyl bacteriochlorophyllide a + 3 NADPH + 3 H+
-
 ?
bacteriochlorophyll a + 3 NADP+
-
 Rhodobacter capsulatus SB1003 geranylgeranyl bacteriochlorophyllide a + 3 NADPH + 3 H+
-
 ?
bacteriochlorophyll a + 3 NADP+ three reductive steps, overview Rhodobacter capsulatus SB1003 geranylgeranyl bacteriochlorophyllide a + 3 NADPH + 3 H+
-
 ?

Cofactor

Cofactor Comment Organism Structure
NADP+
-
 Rhodobacter capsulatus

General Information

General Information Comment Organism
malfunction a mutant in orf391 synthesizes bacteriochlorophyll a that is esterified with geranylgeraniol rather than the normal phytol. Strains that accumulate geranylgeraniol-esterified bacteriochlorophyll a exhibit reduced photosynthetic growth capability compared to that observed with the parent strain which synthesizes bacteriochlorophyll a that is esterified with phytol. But synthesis of geranylgeranyl bacteriochlorophyllide a does not per se impair function of the reaction center complex nor energy transfer from the light harvesting complex Rhodobacter capsulatus
metabolism esterification of bacteriochlorophyllide a initially involves the addition of a geranylgeraniol group followed by sequential reduction of the geranylgeraniol moiety tophytol which is the end product of the pathway. Synthesis of geranylgeraniol-esterified bacteriochlorophyll does not affect the energy transfer rate from light harvesting to reaction center complexes nor the electron transfer function as measured by the yield of electron transfer to the primary and secondary quinones, the charge recombination rate from the quinones, and the rate of cytochrome c2 oxidation. Pathway for synthesis of bacteriochlorophyll from bacteriochlorophyllide, overview Rhodobacter capsulatus