Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyCyclin-like8044063 3000768 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyCyclin-like8044065 3000768 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyCyclin-like8044065 3000768 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyCyclin-like8044063 3000768 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
ARB_Ae2r7gA1 A: alpha arraysX: HTHH: HTHT: Cyclin-likeF: RB_AECOD (1.6)
ARB_Be2r7gA2 A: alpha arraysX: HTHH: HTHT: Cyclin-likeF: RB_BECOD (1.6)
CRB_Ae2r7gC1 A: alpha arraysX: HTHH: HTHT: Cyclin-likeF: RB_AECOD (1.6)
CRB_Be2r7gC2 A: alpha arraysX: HTHH: HTHT: Cyclin-likeF: RB_BECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A1.10.472.10 Mainly Alpha Orthogonal Bundle Cyclin A domain 1CATH (4.3.0)
C1.10.472.10 Mainly Alpha Orthogonal Bundle Cyclin A domain 1CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, C
PF01857Retinoblastoma-associated protein B domain (RB_B)Retinoblastoma-associated protein B domainThe crystal structure of the Rb pocket bound to a nine-residue E7 peptide containing the LxCxE motif, shared by other Rb-binding viral and cellular proteins, shows that the LxCxE peptide binds a highly conserved groove on the B domain [1]. The B dom ...The crystal structure of the Rb pocket bound to a nine-residue E7 peptide containing the LxCxE motif, shared by other Rb-binding viral and cellular proteins, shows that the LxCxE peptide binds a highly conserved groove on the B domain [1]. The B domain has a cyclin fold.
Domain
A, C
PF01858Retinoblastoma-associated protein A domain (RB_A)Retinoblastoma-associated protein A domainThis domain has the cyclin fold [1] as predicted [2].Domain
A, C
PF08934Rb C-terminal domain (Rb_C)Rb C-terminal domainThe Rb C-terminal domain is required for high-affinity binding to E2F-DP complexes and for maximal repression of E2F-responsive promoters, thereby acting as a growth suppressor by blocking the G1-S transition of the cell cycle. This domain has a stra ...The Rb C-terminal domain is required for high-affinity binding to E2F-DP complexes and for maximal repression of E2F-responsive promoters, thereby acting as a growth suppressor by blocking the G1-S transition of the cell cycle. This domain has a strand-loop-helix structure, which directly interacts with both E2F1 and DP1, followed by a tail segment that lacks regular secondary structure [1].
Domain
B, D, E
PF02703Early E1A protein (Adeno_E1A)Early E1A protein- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, C
Retinoblastoma-associated protein
B, D, E
Early E1A 32 kDa protein

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A, C
PharosP06400