5DQR
The crystal structure of Arabidopsis 7-hydroxymethyl chlorophyll a reductase (HCAR)
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A | SCOP2 Family | FrhB/FdhB-like | 8045890 | 4004744 | SCOP2 (2022-06-29) |
A | SCOP2 Superfamily | FrhB/FdhB-like | 8045906 | 3002602 | SCOP2 (2022-06-29) |
B | SCOP2B Superfamily | FrhB/FdhB-like | 8045906 | 3002602 | SCOP2B (2022-06-29) |
C | SCOP2B Superfamily | FrhB/FdhB-like | 8045906 | 3002602 | SCOP2B (2022-06-29) |
D | SCOP2B Superfamily | FrhB/FdhB-like | 8045906 | 3002602 | SCOP2B (2022-06-29) |
E | SCOP2B Superfamily | FrhB/FdhB-like | 8045906 | 3002602 | SCOP2B (2022-06-29) |
F | SCOP2B Superfamily | FrhB/FdhB-like | 8045906 | 3002602 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | PF04422,PF04432 | e5dqrA1 | A: alpha arrays | X: F420-reducing hydrogenase subunit beta (From Topology) | H: F420-reducing hydrogenase subunit beta (From Topology) | T: F420-reducing hydrogenase subunit beta | F: PF04422,PF04432 | ECOD (1.6) |
B | PF04422,PF04432 | e5dqrB1 | A: alpha arrays | X: F420-reducing hydrogenase subunit beta (From Topology) | H: F420-reducing hydrogenase subunit beta (From Topology) | T: F420-reducing hydrogenase subunit beta | F: PF04422,PF04432 | ECOD (1.6) |
C | PF04422,PF04432 | e5dqrC1 | A: alpha arrays | X: F420-reducing hydrogenase subunit beta (From Topology) | H: F420-reducing hydrogenase subunit beta (From Topology) | T: F420-reducing hydrogenase subunit beta | F: PF04422,PF04432 | ECOD (1.6) |
D | PF04422,PF04432 | e5dqrD1 | A: alpha arrays | X: F420-reducing hydrogenase subunit beta (From Topology) | H: F420-reducing hydrogenase subunit beta (From Topology) | T: F420-reducing hydrogenase subunit beta | F: PF04422,PF04432 | ECOD (1.6) |
E | PF04422,PF04432 | e5dqrE1 | A: alpha arrays | X: F420-reducing hydrogenase subunit beta (From Topology) | H: F420-reducing hydrogenase subunit beta (From Topology) | T: F420-reducing hydrogenase subunit beta | F: PF04422,PF04432 | ECOD (1.6) |
F | PF04422,PF04432 | e5dqrF1 | A: alpha arrays | X: F420-reducing hydrogenase subunit beta (From Topology) | H: F420-reducing hydrogenase subunit beta (From Topology) | T: F420-reducing hydrogenase subunit beta | F: PF04422,PF04432 | ECOD (1.6) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF04422 | Coenzyme F420 hydrogenase/dehydrogenase, beta subunit N-term (FrhB_FdhB_N) | Coenzyme F420 hydrogenase/dehydrogenase, beta subunit N-term | - | Family | |
PF04432 | Coenzyme F420 hydrogenase/dehydrogenase, beta subunit C terminus (FrhB_FdhB_C) | Coenzyme F420 hydrogenase/dehydrogenase, beta subunit C terminus | Coenzyme F420 hydrogenase (EC:1.12.99.1) reduces the low-potential two-electron acceptor coenzyme F420. This family contains the C termini of F420 hydrogenase and dehydrogenase beta subunits [1], [2]. The N terminus of Methanobacterium formicicum fo ... | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
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7-hydroxymethyl chlorophyll a reductase, chloroplastic |
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InterPro: Protein Family Classification InterPro Database Homepage
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
7-hydroxymethyl chlorophyll A reductase (HCAR) M-CSA #990 | 7-Hydroxymethyl chlorophyll (HCAR) is a member of the family of chlorophyll catabolic enzymes (CCEs). Its a reductase that catalyses one of the reactions in chlorophyll conversion. HCAR is required for the degradation of light-harvesting complexes and is necessary for efficient photosynthesis by balancing the chlorophyll A/B ratio. Specifically, its a protein containing both 4Fe-4S complexes and FAD cofactor that converts 7-hydroxymethyl chlorophyll (HMChl) a to chlorophyll A using ferredoxin for reduction of the substrate. HCAR catalyses the reduction of a hydroxymethyl group to a methyl group. | Defined by 4 residues: ASP:D-212 [auth D-237]GLU:D-237 [auth D-262]GLN:D-307 [auth D-332]HIS:D-392 [auth D-417] | EC: 1.17.7.2 (PDB Primary Data) |