8IJ1

Protomer 1 and 2 of the asymmetry trimer of the Cul2-Rbx1-EloBC-FEM1B ubiquitin ligase complex


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
B [auth R]SCOP2B SuperfamilyRING/U-box like 8040866 3000160 SCOP2B (2022-06-29)
C [auth B]SCOP2B SuperfamilyUbiquitin-like 8038575 3000157 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyUbiquitin-like 8038575 3000157 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, F
PF00888Cullin family (Cullin)Cullin family- Repeat
A, F
PF10557Cullin protein neddylation domain (Cullin_Nedd8)Cullin protein neddylation domainThis is the neddylation site of cullin proteins which are a family of structurally related proteins containing an evolutionarily conserved cullin domain. With the exception of APC2, each member of the cullin family is modified by Nedd8 and several cu ...This is the neddylation site of cullin proteins which are a family of structurally related proteins containing an evolutionarily conserved cullin domain. With the exception of APC2, each member of the cullin family is modified by Nedd8 and several cullins function in Ubiquitin-dependent proteolysis, a process in which the 26S proteasome recognises and subsequently degrades a target protein tagged with K48-linked poly-ubiquitin chains. Cullins are molecular scaffolds responsible for assembling the ROC1/Rbx1 RING-based E3 ubiquitin ligases, of which several play a direct role in tumorigenesis. Nedd8/Rub1 is a small ubiquitin-like protein, which was originally found to be conjugated to Cdc53, a cullin component of the SCF (Skp1-Cdc53/CUL1-F-box protein) E3 Ub ligase complex in Saccharomyces cerevisiae, and Nedd8 modification has now emerged as a regulatory pathway of fundamental importance for cell cycle control and for embryogenesis in metazoans. The only identified Nedd8 substrates are cullins. Neddylation results in covalent conjugation of a Nedd8 moiety onto a conserved cullin lysine residue [1].
Domain
B [auth R]PF12678RING-H2 zinc finger domain (zf-rbx1)RING-H2 zinc finger domainThere are 8 cysteine/ histidine residues which are proposed to be the conserved residues involved in zinc binding. The protein, of which this domain is the conserved region, participates in diverse functions relevant to chromosome metabolism and cell ...There are 8 cysteine/ histidine residues which are proposed to be the conserved residues involved in zinc binding. The protein, of which this domain is the conserved region, participates in diverse functions relevant to chromosome metabolism and cell cycle control [1].
Domain
C [auth B],
G
PF00240Ubiquitin family (ubiquitin)Ubiquitin familyThis family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry ...This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites [5].
Domain
D [auth C],
H
PF03931Skp1 family, tetramerisation domain (Skp1_POZ)Skp1 family, tetramerisation domain- Domain
E [auth D],
I
PF12796Ankyrin repeats (3 copies) (Ank_2)Ankyrin repeats (3 copies)- Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, F
Cullin-2
B [auth R]E3 ubiquitin-protein ligase RBX1
C [auth B],
G
Elongin-B
D [auth C],
H
Elongin-C
E [auth D],
I
Protein fem-1 homolog B

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
A, F
PharosQ13617
B [auth R]PharosP62877
C [auth B],
G
PharosQ15370
D [auth C],
H
PharosQ15369
E [auth D],
I
PharosQ9UK73