Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2 FamilyCryptochrome/photolyase FAD-binding domain 8025959 4001154 SCOP2 (2022-06-29)
ASCOP2 FamilyCryptochrome/photolyase, N-terminal domain 8031835 4003847 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyCryptochrome/photolyase FAD-binding domain 8038338 3000930 SCOP2 (2022-06-29)
ASCOP2 SuperfamilyCryptochrome/photolyase, N-terminal domain 8044213 3001644 SCOP2 (2022-06-29)
BSCOP2B SuperfamilyCryptochrome/photolyase, N-terminal domain 8044213 3001644 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCryptochrome/photolyase FAD-binding domain 8038338 3000930 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AFAD_binding_7e1dnpA1 A: alpha complex topologyX: Cryptochrome/photolyase FAD-binding domain-related (From Homology)H: Cryptochrome/photolyase FAD-binding domain-relatedT: Cryptochrome/photolyase FAD-binding domainF: FAD_binding_7ECOD (1.6)
ADNA_photolyasee1dnpA2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: DNA_photolyaseECOD (1.6)
BFAD_binding_7e1dnpB1 A: alpha complex topologyX: Cryptochrome/photolyase FAD-binding domain-related (From Homology)H: Cryptochrome/photolyase FAD-binding domain-relatedT: Cryptochrome/photolyase FAD-binding domainF: FAD_binding_7ECOD (1.6)
BDNA_photolyasee1dnpB2 A: a/b three-layered sandwichesX: HUP domain-likeH: HUP domains (From Topology)T: HUP domainsF: DNA_photolyaseECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF00875DNA photolyase (DNA_photolyase)DNA photolyaseThis domain binds a light harvesting cofactor.Domain
A, B
PF03441FAD binding domain of DNA photolyase (FAD_binding_7)FAD binding domain of DNA photolyase- Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
DNA PHOTOLYASE -

Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage

ChainsEnzyme NameDescriptionCatalytic Residues
deoxyribodipyrimidine photo-lyase  M-CSA #183

DNA is very sensitive to UV-radiation and other damaging agents. One result of UV radiation is the production of cyclobutane-type dimers formed from adjacent pyrimidine bases which block replication and thus have cytotoxic and mutagenic effects. Such damage is, however, effectively repaired by photolyases. Photoreactivation comprises several steps: damage recognition and binding of photolyase to DNA, photon absorption, interchromophoric energy transfer and electron transfer from the chromophore to the DNA. Two cofactors are required by the enzyme, the first, FAD, is essential for the light dependent repair process whilst the second (either 8-hydroxy-5-deazaflavin or 5,10-methenyltetrahydro-folic acid) acts as a light harvesting chromophore. The photolyases are divided into two groups according to their second cofactor.

Defined by 6 residues: GLU:A-274TRP:A-277TRP:A-306ASN:A-341TRP:A-359TRP:A-382
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