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The annotation and conditions in this rule are derived from the following entries: Q9RFD6 (BCHL_RHOS4), P0CY53 (BCHL_RHOCA), D5ANS3 (BCHL_RHOCB)

If a protein meets these conditions... i

Common conditions

    • Matches HAMAP signature MF_00355
    • taxon = Bacteria
    • fragment ≠ the sequence is fragmented
    • Matches HAMAP signature MF_00355
    • gene location = Plastid
    • fragment ≠ the sequence is fragmented

Special conditions

    • Subsequence at position 126 - 126 aligns to "C" in entry Q9RFD6 Subsequence at position 160 - 160 aligns to "C" in entry Q9RFD6
    • gene location = Plastid; Chloroplast
    • gene location = Plastid; Chloroplast
    • Subsequence at position 41 - 46 aligns to "G-[IV]-G-K-S-T" in entry Q9RFD6 (individually applies "ATP")
    • Subsequence at position 45 - 45 aligns to "S" in entry Q9RFD6 (individually applies "Magnesium")
    • Subsequence at position 70 - 70 aligns to "K" in entry Q9RFD6 (individually applies "ATP")
    • Subsequence at position 211 - 212 aligns to "N-R" in entry Q9RFD6 (individually applies "ATP")
    • Subsequence at position 235 - 237 aligns to "P-x-L" in entry Q9RFD6 (individually applies "ATP")
  • Subsequence at position 126 - 126 aligns to "C" in entry Q9RFD6 (applies "Iron-sulfur (4Fe-4S); shared with dimeric partner") Subsequence at position 160 - 160 aligns to "C" in entry Q9RFD6 (applies "Iron-sulfur (4Fe-4S); shared with dimeric partner")

... then these annotations are applied i

Protein namei

  • Recommended name:
    Light-independent protochlorophyllide reductase iron-sulfur ATP-binding protein (EC:1.3.7.7)
    Short name:
    DPOR subunit L
    Short name:
    LI-POR subunit L

Gene namesi

  • Name:chlL
  • Name:bchL

Subunit structurei

  • Homodimer. Protochlorophyllide reductase is composed of three subunits; ChlL, ChlN and ChlB.
  • Homodimer. Protochlorophyllide reductase is composed of three subunits; BchL, BchN and BchB.

Pathwayi

Cofactori

Catalytic activityi

  • Protochlorophyllide a + reduced ferredoxin + 2 ATP + 2 H2O = chlorophyllide a + oxidized ferredoxin + 2 ADP + 2 phosphate.

Subcellular locationi

Functioni

  • Component of the dark-operative protochlorophyllide reductase (DPOR) that uses Mg-ATP and reduced ferredoxin to reduce ring D of protochlorophyllide (Pchlide) to form chlorophyllide a (Chlide). This reaction is light-independent. The L component serves as a unique electron donor to the NB-component of the complex, and binds Mg-ATP.

Sequence similaritiesi

Binding sitei

  • ATP (to residues corresponding to position 70)

Nucleotide bindingi

  • ATP (to residues corresponding to positions 41 - 46)
  • ATP (to residues corresponding to positions 211 - 212)
  • ATP (to residues corresponding to positions 235 - 237)

Metal bindingi

  • Magnesium (to residues corresponding to position 45)
  • Iron-sulfur (4Fe-4S); shared with dimeric partner (to residues corresponding to position 126)
  • Iron-sulfur (4Fe-4S); shared with dimeric partner (to residues corresponding to position 160)

Keywordsi

GO (Gene Ontology) termsi

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Main funding by: National Institutes of Health

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