3JXB | pdb_00003jxb

Crystal structure of the P22 c2 repressor protein in complex with synthetic operator 9C

External Resource: Annotation


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
Dd3jxbd_ All alpha proteins lambda repressor-like DNA-binding domains lambda repressor-like DNA-binding domains Phage repressors P22 C2 repressor, DNA-binding domain Bacteriophage P22 (Lederbergvirus P22 ) [TaxId: 10754 ], SCOPe (2.08)
Cd3jxbc_ All alpha proteins lambda repressor-like DNA-binding domains lambda repressor-like DNA-binding domains Phage repressors P22 C2 repressor, DNA-binding domain Bacteriophage P22 (Lederbergvirus P22 ) [TaxId: 10754 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
DSCOP2B Superfamilylambda C1 repressor DNA-binding domain-like 8057722 3000119 SCOP2B (2022-06-29)
CSCOP2B Superfamilylambda C1 repressor DNA-binding domain-like 8057722 3000119 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
DCOesterase, BD-FAEe3jxbD1 A: alpha bundlesX: cradle loop barrelH: RIFT-relatedT: acid proteaseF: COesterase, BD-FAEECOD (develop294)
CSBDS_Ce3jxbC1 A: alpha bundlesX: EGF-likeH: EGF-relatedT: EGF/LamininF: SBDS_CECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D1.10.260.40 Mainly Alpha Orthogonal Bundle 434 Repressor (Amino-terminal Domain) lambda repressor-like DNA-binding domainsCATH (4.3.0)
C1.10.260.40 Mainly Alpha Orthogonal Bundle 434 Repressor (Amino-terminal Domain) lambda repressor-like DNA-binding domainsCATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
C, D
PF01381Helix-turn-helix (HTH_3)Helix-turn-helixThis large family of DNA binding helix-turn helix proteins includes Cro Swiss:P03036 and CI Swiss:P03034. Within the protein Swiss:Q5F9C2, the full protein fold incorporates a helix-turn-helix motif, but the function of this member is unlikely to be ...This large family of DNA binding helix-turn helix proteins includes Cro Swiss:P03036 and CI Swiss:P03034. Within the protein Swiss:Q5F9C2, the full protein fold incorporates a helix-turn-helix motif, but the function of this member is unlikely to be that of a DNA-binding regulator, the function of most other members, so is not necessarily characteristic of the whole family [1].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
C, D
Repressor protein C2 - -
5'-D(*TP*AP*TP*TP*TP*AP*AP*GP*AP*CP*GP*TP*CP*TP*TP*AP*AP*AP*TP*G)-3'---
5'-D(*CP*AP*TP*TP*TP*AP*AP*GP*AP*CP*GP*TP*CP*TP*TP*AP*AP*AP*TP*A)-3'---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
C, D
IPR015927Peptidase S24/S26A/S26B/S26CDomain
C, D
IPR001387Cro/C1-type, helix-turn-helix domainDomain
C, D
IPR039418LexA-likeDomain
C, D
IPR036286LexA/Signal peptidase-like superfamilyHomologous Superfamily
C, D
IPR050077LexA repressorFamily
C, D
IPR010982Lambda repressor-like, DNA-binding domain superfamilyHomologous Superfamily