Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
I [auth F]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054845 3000071 SCOP2B (2022-06-29)
H [auth E]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054845 3000071 SCOP2B (2022-06-29)
G [auth K]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054849 3000071 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
H [auth E]e9cq4E01 A: ATPD N-terminal domain-likeX: N-terminal domain of the delta subunit of the F1F0-ATP synthaseH: Galactose-binding domain-likeT: C1-setF:ECOD (20:10:01)
F [auth B]e9cq4B01 A: ATPD N-terminal domain-likeX: N-terminal domain of the delta subunit of the F1F0-ATP synthaseH: Galactose-binding domain-likeT: C1-setF:ECOD (20:10:01)
E [auth A]e9cq4A01 A: ATPD N-terminal domain-likeX: N-terminal domain of the delta subunit of the F1F0-ATP synthaseH: Galactose-binding domain-likeT: C1-setF:ECOD (20:10:01)
B [auth D]e9cq4D01 A: ATPD N-terminal domain-likeX: N-terminal domain of the delta subunit of the F1F0-ATP synthaseH: Galactose-binding domain-likeT: C1-setF:ECOD (20:10:01)
A [auth C]e9cq4C01 A: ATPD N-terminal domain-likeX: N-terminal domain of the delta subunit of the F1F0-ATP synthaseH: Galactose-binding domain-likeT: C1-setF:ECOD (20:10:01)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth D],
D [auth L]
Light ChainIGKV4 Kappat-cell surface glycoprotein cd3 epsilon chain | t-cell surface glycoprotein cd3 gamma chain, t-cell surface glycoprotein cd3 epsilon chainSAbDab (2026-03-13)
A [auth C],
C [auth H]
Heavy ChainIGHV1 -t-cell surface glycoprotein cd3 epsilon chain | t-cell surface glycoprotein cd3 gamma chain, t-cell surface glycoprotein cd3 epsilon chainSAbDab (2026-03-13)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
B [auth D],
D [auth L]
Muromonab CD3ETherapeutic SAbDab (2026-03-13)
A [auth C],
C [auth H]
Muromonab CD3ETherapeutic SAbDab (2026-03-13)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
K [auth Y],
L [auth Z]
PF11628T-cell surface glycoprotein CD3 zeta chain (TCR_zetazeta)T-cell surface glycoprotein CD3 zeta chain- Family
J [auth G]PF16680T-cell surface glycoprotein CD3 delta chain (Ig_4)T-cell surface glycoprotein CD3 delta chainThis is an immunoglobulin-like domain. It is found on the T-cell surface glycoprotein CD3 delta chain. CD3delta and CD3epsilon complex together as part of the T-cell receptor complex [1]. Domain
H [auth E],
I [auth F]
PF16681Ig-like domain on T-cell surface glycoprotein CD3 epsilon chain (Ig_5)Ig-like domain on T-cell surface glycoprotein CD3 epsilon chainIg_5 is an immunoglobulin domain found on T-cell surface glycoprotein CD3 epsilon chain. It forms a first-order complex with T-cell surface glycoprotein CD3 delta chain as part of the T-cell receptor complex [1]. Domain
G [auth K]PF16680T-cell surface glycoprotein CD3 delta chain (Ig_4)T-cell surface glycoprotein CD3 delta chainThis is an immunoglobulin-like domain. It is found on the T-cell surface glycoprotein CD3 delta chain. CD3delta and CD3epsilon complex together as part of the T-cell receptor complex [1]. Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
K [auth Y],
L [auth Z]
T-cell surface glycoprotein CD3 zeta chain
J [auth G]T-cell surface glycoprotein CD3 gamma chain
H [auth E],
I [auth F]
T-cell surface glycoprotein CD3 epsilon chain
G [auth K]T-cell surface glycoprotein CD3 delta chain
F [auth B]G115 TCR gamma chain---
E [auth A]G115 TCR delta chain---
B [auth D],
D [auth L]
OKT3 Fab light chain---
A [auth C],
C [auth H]
OKT3 Fab heavy chain---

InterPro: Protein Family Classification InterPro Database Homepage

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
K [auth Y],
L [auth Z]
PharosP20963
J [auth G]PharosP09693
H [auth E],
I [auth F]
PharosP07766
G [auth K]PharosP04234