Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8017546 3000112 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8017546 3000112 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyE2 binding domain-like 8003942 3000147 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyCC (catalytic cysteine) domain-like 8003552 3000140 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8003540 3000112 SCOP2B (2022-06-29)
ASCOP2B SuperfamilySCCH domain-like 8003543 3000139 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyFCCH domain-like 8003532 3000138 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8003540 3000112 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8017546 3000112 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8017546 3000112 SCOP2B (2022-06-29)
DSCOP2B SuperfamilySCCH domain-like 8003543 3000139 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8003540 3000112 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyActivating enzymes of the ubiquitin-like proteins 8003540 3000112 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyFCCH domain-like 8003532 3000138 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyE2 binding domain-like 8003942 3000147 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyCC (catalytic cysteine) domain-like 8003552 3000140 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyUbiquitin-like 8066181 3000157 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyUbiquitin-like 8066181 3000157 SCOP2B (2022-06-29)
CSCOP2 FamilyUBC-related 8095690 4001046 SCOP2 (2022-06-29)
CSCOP2 SuperfamilyUBC-like 8095691 3000570 SCOP2 (2022-06-29)
FSCOP2B SuperfamilyUBC-like 8095691 3000570 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AE1_FCCHe6nyaA5 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: E1_FCCHECOD (1.6)
AUBA_e1_thiolCyse6nyaA4 A: alpha arraysX: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)H: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)T: Catalytic cysteine domain in ubiquitin-activating enzymeF: UBA_e1_thiolCysECOD (1.6)
AThiF_3e6nyaA2 A: alpha arraysX: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)H: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)T: Catalytic cysteine domain in ubiquitin-activating enzymeF: ThiF_3ECOD (1.6)
AE1_UFDe6nyaA6 A: a+b two layersX: beta-GraspH: E2-binding domain of E1 (From Topology)T: E2-binding domain of E1F: E1_UFDECOD (1.6)
AThiF_1e6nyaA3 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: Activating enzymes of the ubiquitin-like proteinsF: ThiF_1ECOD (1.6)
AThiF_3e6nyaA1 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: Activating enzymes of the ubiquitin-like proteinsF: ThiF_3ECOD (1.6)
DE1_FCCHe6nyaD1 A: beta barrelsX: cradle loop barrelH: RIFT-relatedT: Alanine racemase-CF: E1_FCCHECOD (1.6)
DUBA_e1_thiolCyse6nyaD2 A: alpha arraysX: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)H: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)T: Catalytic cysteine domain in ubiquitin-activating enzymeF: UBA_e1_thiolCysECOD (1.6)
DThiF_3e6nyaD5 A: alpha arraysX: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)H: Catalytic cysteine domain in ubiquitin-activating enzyme (From Topology)T: Catalytic cysteine domain in ubiquitin-activating enzymeF: ThiF_3ECOD (1.6)
DE1_UFDe6nyaD6 A: a+b two layersX: beta-GraspH: E2-binding domain of E1 (From Topology)T: E2-binding domain of E1F: E1_UFDECOD (1.6)
DThiF_1e6nyaD3 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: Activating enzymes of the ubiquitin-like proteinsF: ThiF_1ECOD (1.6)
DThiF_3e6nyaD4 A: a/b three-layered sandwichesX: Rossmann-likeH: Rossmann-relatedT: Activating enzymes of the ubiquitin-like proteinsF: ThiF_3ECOD (1.6)
Bubiquitin_1e6nyaB1 A: a+b two layersX: beta-GraspH: Ubiquitin-relatedT: Ubiquitin-likeF: ubiquitin_1ECOD (1.6)
Eubiquitin_1e6nyaE1 A: a+b two layersX: beta-GraspH: Ubiquitin-relatedT: Ubiquitin-likeF: ubiquitin_1ECOD (1.6)
CUQ_cone6nyaC1 A: a+b two layersX: UBC-likeH: UBC-like (From Topology)T: UBC-likeF: UQ_conECOD (1.6)
FUQ_cone6nyaF1 A: a+b two layersX: UBC-likeH: UBC-like (From Topology)T: UBC-likeF: UQ_conECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A3.50.50.80 Alpha Beta 3-Layer(bba) Sandwich FAD/NAD(P)-binding domain Ubiquitin-activating enzyme E1, inactive adenylation domain, subdomain 1CATH (utative)
A3.40.50.12550 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Ubiquitin-activating enzyme E1, inactive adenylation domain, subdomain 2CATH (utative)
A2.40.30.180 Mainly Beta Beta Barrel Elongation Factor Tu (Ef-tu) domain 3CATH (utative)
A3.40.50.720 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold NAD(P)-binding Rossmann-like DomainCATH (utative)
A1.10.10.2660 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Ubiquitin-activating enzyme E1, SCCH domainCATH (utative)
A3.10.290.60 Alpha Beta Roll Structural Genomics Hypothetical 15.5 Kd Protein In mrcA-pckA Intergenic Region Chain ACATH (utative)
D3.50.50.80 Alpha Beta 3-Layer(bba) Sandwich FAD/NAD(P)-binding domain Ubiquitin-activating enzyme E1, inactive adenylation domain, subdomain 1CATH (utative)
D3.40.50.12550 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold Ubiquitin-activating enzyme E1, inactive adenylation domain, subdomain 2CATH (utative)
D2.40.30.180 Mainly Beta Beta Barrel Elongation Factor Tu (Ef-tu) domain 3CATH (utative)
D3.40.50.720 Alpha Beta 3-Layer(aba) Sandwich Rossmann fold NAD(P)-binding Rossmann-like DomainCATH (utative)
D1.10.10.2660 Mainly Alpha Orthogonal Bundle Arc Repressor Mutant, subunit A Ubiquitin-activating enzyme E1, SCCH domainCATH (utative)
D3.10.290.60 Alpha Beta Roll Structural Genomics Hypothetical 15.5 Kd Protein In mrcA-pckA Intergenic Region Chain ACATH (utative)
C3.10.110.10 Alpha Beta Roll Ubiquitin Conjugating Enzyme Ubiquitin Conjugating EnzymeCATH (utative)
F3.10.110.10 Alpha Beta Roll Ubiquitin Conjugating Enzyme Ubiquitin Conjugating EnzymeCATH (utative)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, D
PF00899ThiF family (ThiF)ThiF familyThis domain is found in ubiquitin activating E1 family and members of the bacterial ThiF/MoeB/HesA family. It is repeated in Ubiquitin-activating enzyme E1 [1-3].Domain
A, D
PF10585Ubiquitin-activating enzyme, SCCH domain (UBA_E1_SCCH)Ubiquitin-activating enzyme, SCCH domainUbiquitin-activating enzyme (E1 enzyme) activates ubiquitin by first adenylating with ATP its C-terminal glycine residue and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding an ubiquitin-E1 thiolester and free A ...Ubiquitin-activating enzyme (E1 enzyme) activates ubiquitin by first adenylating with ATP its C-terminal glycine residue and thereafter linking this residue to the side chain of a cysteine residue in E1, yielding an ubiquitin-E1 thiolester and free AMP. Later the ubiquitin moiety is transferred to a cysteine residue on one of the many forms of ubiquitin-conjugating enzymes (E2) [1]. This domain carries the last of five conserved cysteines that is part of the active site of the enzyme, responsible for ubiquitin thiolester complex formation, the active site being represented by the sequence motif PICTLKNFP [2,3,4]. The catalytic cysteine domain contains the E1 active site cysteine, and is divided in two half-domains, FCCH and SCCH, for 'first' and 'second' catalytic cysteine half-domain, respectively. This is the SCCH domain in which resides the catalytic cysteine [5].
Domain
A, D
PF09358Ubiquitin fold domain (E1_UFD)Ubiquitin fold domainThe ubiquitin fold domain is found at the C-terminus of ubiquitin-activating E1 family enzymes. This domain binds to E2 enzymes [1].Domain
A, D
PF16190Ubiquitin-activating enzyme E1 FCCH domain (E1_FCCH)Ubiquitin-activating enzyme E1 FCCH domainThis domain is found in the ubiquitin-activating E1 family enzymes [1].Domain
A, D
PF16191Ubiquitin-activating enzyme E1 four-helix bundle (E1_4HB)Ubiquitin-activating enzyme E1 four-helix bundleThis domain is found in the ubiquitin-activating E1 family enzymes [1].Domain
B, E
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
C, F
PF00179Ubiquitin-conjugating enzyme (UQ_con)Ubiquitin-conjugating enzymeProteins destined for proteasome-mediated degradation may be ubiquitinated. Ubiquitination follows conjugation of ubiquitin to a conserved cysteine residue of UBC homologues. TSG101 is one of several UBC homologues that lacks this active site cystein ...Proteins destined for proteasome-mediated degradation may be ubiquitinated. Ubiquitination follows conjugation of ubiquitin to a conserved cysteine residue of UBC homologues. TSG101 is one of several UBC homologues that lacks this active site cysteine [4, 5].
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, D
Ubiquitin-activating enzyme E1 1
B, E
Ubiquitin -
C, F
Ubiquitin-conjugating enzyme E2-34 kDa

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, D
IPR042302Ubiquitin-activating enzyme E1, FCCH domain superfamilyHomologous Superfamily
A, D
IPR000011Ubiquitin/SUMO-activating enzyme E1-likeFamily
A, D
IPR045886ThiF/MoeB/HesA familyFamily
A, D
IPR042449Ubiquitin-activating enzyme E1, inactive adenylation domain, subdomain 1Homologous Superfamily
A, D
IPR019572Ubiquitin-activating enzyme, SCCH domainDomain
A, D
IPR042063Ubiquitin-activating enzyme E1, SCCH domainHomologous Superfamily
A, D
IPR000594THIF-type NAD/FAD binding foldDomain
A, D
IPR032420Ubiquitin-activating enzyme E1, four-helix bundleDomain
A, D
IPR018075Ubiquitin-activating enzyme E1Family
A, D
IPR032418Ubiquitin-activating enzyme E1, FCCH domainDomain
A, D
IPR018965Ubiquitin-activating enzyme E1, C-terminalDomain
A, D
IPR035985Ubiquitin-activating enzymeHomologous Superfamily
A, D
IPR033127Ubiquitin-activating enzyme E1, Cys active siteActive Site
A, D
IPR038252Ubiquitin-activating enzyme E1, C-terminal domain superfamilyHomologous Superfamily
A, D
IPR018074Ubiquitin-activating enzyme E1, conserved siteConserved Site
B, E
IPR019956Ubiquitin domainDomain
B, E
IPR019954Ubiquitin conserved siteConserved Site
B, E
IPR050158Ubiquitin and ubiquitin-likeFamily
B, E
IPR029071Ubiquitin-like domain superfamilyHomologous Superfamily
B, E
IPR000626Ubiquitin-like domainDomain
C, F
IPR050113Ubiquitin-conjugating enzymeFamily
C, F
IPR016135Ubiquitin-conjugating enzyme/RWD-likeHomologous Superfamily
C, F
IPR000608Ubiquitin-conjugating enzyme E2Domain
C, F
IPR023313Ubiquitin-conjugating enzyme, active siteActive Site