Annotations: 8BW0

Structure of CEACAM5 A3-B3 domain in Complex with Tusamitamab Fab

External Resource: Annotation

Domain Annotation: ECOD Classification
SAbDab Antibody Annotation
Thera-SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth L]		e8bw0L01	A: beta barrels	X: Fe-binding domain in prismane-like proteins	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v294.2)
C		e8bw0C01	A: beta barrels	X: Fe-binding domain in prismane-like proteins	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v294.2)
A [auth H]		e8bw0H01	A: beta barrels	X: Fe-binding domain in prismane-like proteins	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v294.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV12	Kappa	carcinoembryonic antigen-related cell adhesion molecule 5	SAbDab (2026-05-15)
A [auth H]	Heavy Chain	IGHV5	-	carcinoembryonic antigen-related cell adhesion molecule 5	SAbDab (2026-05-15)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

Chain	Name	Target	Provenance Source
B [auth L]	Tusamitamab	CEACAM5/CD66e	Therapeutic SAbDab (2026-05-15)
A [auth H]	Tusamitamab	CEACAM5/CD66e	Therapeutic SAbDab (2026-05-15)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF13927	Immunoglobulin domain (Ig_3)	Immunoglobulin domain	This family contains immunoglobulin-like domains.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth L]	Tusamitamab Light Chain	-	-	-
C	Carcinoembryonic antigen-related cell adhesion molecule 5	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity lipid binding phospholipid binding GPI anchor binding glycolipid binding carbohydrate derivative binding	regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death regulation of anoikis regulation of biological process regulation of cellular process negative regulation of programmed cell death regulation of apoptotic process biological regulation negative regulation of biological process regulation of programmed cell death cell death negative regulation of apoptotic process negative regulation of cellular process cellular process apoptotic process programmed cell death regulation of anoikis negative regulation of anoikis anoikis heterophilic cell-cell adhesion cell adhesion cell-cell adhesion regulation of developmental process cellular developmental process negative regulation of muscle cell differentiation regulation of cell differentiation regulation of striated muscle cell differentiation muscle cell differentiation myotube differentiation muscle structure development negative regulation of myotube differentiation cell differentiation regulation of myotube differentiation anatomical structure development negative regulation of cell differentiation developmental process negative regulation of developmental process negative regulation of striated muscle cell differentiation regulation of muscle cell differentiation striated muscle cell differentiation homophilic cell-cell adhesion homotypic cell-cell adhesion	cellular anatomical structure membrane cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle cellular anatomical structure membrane cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle cell surface basal part of cell basal plasma membrane basolateral plasma membrane side of membrane
A [auth H]	Tusamitamab Fab heavy Chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
C	IPR003598	Immunoglobulin subtype 2	Domain
C	IPR013106	Immunoglobulin V-set domain	Domain
C	IPR003599	Immunoglobulin domain subtype	Domain
C	IPR050831	Carcinoembryonic antigen-related cell adhesion	Family
C	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
C	IPR007110	Immunoglobulin-like domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
C	: P06731	cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Abortion, Spontaneous breast cancer ductal breast carcinoma in situ lung carcinoma nasopharyngeal carcinoma pancreatic intraductal papillary-mucinous carcinoma breast carcinoma cystic fibrosis lung adenocarcinoma lung disease non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm asthma cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia Abortion, Spontaneous breast cancer ductal breast carcinoma in situ lung carcinoma nasopharyngeal carcinoma pancreatic intraductal papillary-mucinous carcinoma breast carcinoma cystic fibrosis lung adenocarcinoma lung disease non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm asthma breast disease digestive system disease lung cancer malignant pancreatic neoplasm pancreatic ductal adenocarcinoma

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.