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The crystal structure of Arabidopsis 7-hydroxymethyl chlorophyll a reductase (HCAR)

X-ray diffraction
2.7Å resolution
PDB entry 5dqr coloured by chain, front view.
PDB entry 5dqr coloured by chain, side view.
PDB entry 5dqr coloured by chain, top view.
Source organism: Arabidopsis thaliana
Assembly composition:
homo trimer (preferred)
Entry contents: 1 distinct polypeptide molecule

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Assemblies

Assembly 1 (preferred)
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Assembly Name: 7-hydroxymethyl chlorophyll a reductase, chloroplastic
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Multimeric state: homo trimer
Accessible surface area: 48161.14 Å2
Buried surface area: 9886.17 Å2
Dissociation area: 1,715.28 Å2
Dissociation energy (ΔGdiss): 4.48 kcal/mol
Dissociation entropy (TΔSdiss): 28.61 kcal/mol
Symmetry number: 3
PDBe Complex ID: PDB-CPX-184566
Assembly 2
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Assembly Name: 7-hydroxymethyl chlorophyll a reductase, chloroplastic
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Multimeric state: homo trimer
Accessible surface area: 46367.75 Å2
Buried surface area: 10186.35 Å2
Dissociation area: 1,872.92 Å2
Dissociation energy (ΔGdiss): 5.88 kcal/mol
Dissociation entropy (TΔSdiss): 27.98 kcal/mol
Symmetry number: 1
PDBe Complex ID: PDB-CPX-184566

Macromolecules

7-hydroxymethyl chlorophyll a reductase, chloroplastic
Chains: A, B, C, D, E, F
Length: 437 amino acids
Theoretical weight: 49.07 KDa
Source organism: Arabidopsis thaliana
Expression system: Escherichia coli
UniProt:
  • Canonical: Q8GS60 (Residues: 26-462; Coverage: 95%)
Gene names: At1g04620, HCAR, HMCR, T1G11.13
Pfam:
InterPro:
7-hydroxymethyl chlorophyll a reductase, chloroplastic in PDB entry 5dqr, assembly 1, front view.
7-hydroxymethyl chlorophyll a reductase, chloroplastic in PDB entry 5dqr, assembly 1, side view.
7-hydroxymethyl chlorophyll a reductase, chloroplastic in PDB entry 5dqr, assembly 1, top view.
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