9IPA | pdb_00009ipa

Poly-alanine model for HL-type bispecific diabody Ex3 composed of 528 and OKT3 Fvs in ternary complex with sEGFR and CD3gamma-epsilon (open conformation)


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyGrowth factor receptor domain-like 8038763 3000398 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyL domain-like 8038760 3001010 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054845 3000071 SCOP2B (2022-06-29)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
Teplizumab CD3ETherapeutic SAbDab (2025-08-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
PF00757Furin-like cysteine rich region (Furin-like)Furin-like cysteine rich regionDomain
PF01030Receptor L domain (Recep_L_domain)Receptor L domain- Repeat
PF14843Growth factor receptor domain IV (GF_recep_IV)Growth factor receptor domain IVThis is the fourth extracellular domain of receptor tyrosine protein kinases. Interaction between this domain and the furin-like domain (Pfam:PF00757) regulates the binding of ligands to the receptor L domains (Pfam:PF01030) [1]. Domain
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
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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Epidermal growth factor receptor
HL-type bispecific diabody Ex3---
T-cell surface glycoprotein CD3 gamma chain,T-cell surface glycoprotein CD3 epsilon chain

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR016245Tyrosine protein kinase, EGF/ERB/XmrK receptorFamily
IPR020635Tyrosine-protein kinase, catalytic domainDomain
IPR000719Protein kinase domainDomain
IPR032778Growth factor receptor domain 4Domain
IPR006212Furin-like repeatRepeat
IPR017441Protein kinase, ATP binding siteBinding Site
IPR001245Serine-threonine/tyrosine-protein kinase, catalytic domainDomain
IPR009030Growth factor receptor cysteine-rich domain superfamilyHomologous Superfamily
IPR008266Tyrosine-protein kinase, active siteActive Site
IPR036941Receptor L-domain superfamilyHomologous Superfamily
IPR049328Epidermal growth factor receptor-like, transmembrane-juxtamembrane segmentDomain
IPR000494Receptor L-domainDomain
IPR011009Protein kinase-like domain superfamilyHomologous Superfamily
IPR006211Furin-like cysteine-rich domainDomain
IPR050122Receptor Tyrosine KinaseFamily
IPR036179Immunoglobulin-like domain superfamilyHomologous Superfamily
IPR013783Immunoglobulin-like foldHomologous Superfamily
IPR003110Phosphorylated immunoreceptor signalling ITAMRepeat
IPR003598Immunoglobulin subtype 2Domain
IPR015484CD3 protein, epsilon/gamma/delta subunitFamily
IPR036179Immunoglobulin-like domain superfamilyHomologous Superfamily
IPR003598Immunoglobulin subtype 2Domain
IPR032052CD3 gamma/delta subunit, Ig-like domainDomain
IPR015484CD3 protein, epsilon/gamma/delta subunitFamily
IPR013783Immunoglobulin-like foldHomologous Superfamily
IPR003110Phosphorylated immunoreceptor signalling ITAMRepeat

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
PharosP00533
PharosP09693