Annotations: 9P1M

Cryo-EM structure of CD73 in complex with antibody Sym024

External Resource: Annotation

Domain Annotation: ECOD Classification
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)
F	DNA_ligase_A_N	e9p1mF1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: DNA_ligase_A_N	ECOD (v295.2)
D	DNA_ligase_A_N	e9p1mD1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: DNA_ligase_A_N	ECOD (v295.2)
E	Sec23_trunk	e9p1mE1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Sec23_trunk	ECOD (v295.2)
C	Sec23_trunk	e9p1mC1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: Sec23_trunk	ECOD (v295.2)
B	PAD_N	e9p1mB1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: PAD_N	ECOD (v295.2)
A	PAD_N	e9p1mA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: PAD_N	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D, F	Heavy Chain	IGHV3	-	5'-nucleotidase	SAbDab (2026-09-25)
C, E	Light Chain	IGKV1	Kappa	5'-nucleotidase	SAbDab (2026-09-25)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00149	Calcineurin-like phosphoesterase (Metallophos)	Calcineurin-like phosphoesterase	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or ...	This family includes a diverse range of phosphoesterases [1], including protein phosphoserine phosphatases, nucleotidases, sphingomyelin phosphodiesterases and 2'-3' cAMP phosphodiesterases as well as nucleases such as bacterial SbcD Swiss:P13457 or yeast MRE11 Swiss:P32829. The most conserved regions in this superfamily centre around the metal chelating residues.	Domain
A, B	PF02872	5'-nucleotidase, C-terminal domain (5_nucleotid_C)	5'-nucleotidase, C-terminal domain		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D, F	Antibody Heavy Chain	-	-	-
C, E	Antibody Light Chain	-	-	-
A, B	5'-nucleotidase	binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding phosphoric ester hydrolase activity nucleotidase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity 5'-nucleotidase activity catalytic activity 5'-deoxynucleotidase activity cation binding binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding phosphoric ester hydrolase activity nucleotidase activity hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity 5'-nucleotidase activity catalytic activity 5'-deoxynucleotidase activity cation binding transition metal ion binding zinc ion binding ion binding metal ion binding identical protein binding protein binding	nucleoside phosphate metabolic process ribose phosphate metabolic process purine nucleoside triphosphate metabolic process ATP metabolic process carbohydrate derivative metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process ribonucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process nucleoside phosphate metabolic process ribose phosphate metabolic process purine nucleoside triphosphate metabolic process ATP metabolic process carbohydrate derivative metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process ribonucleotide metabolic process organophosphate metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process metabolic process cellular process small molecule metabolic process nucleoside triphosphate metabolic process phosphorus metabolic process purine ribonucleotide metabolic process inorganic ion homeostasis chemical homeostasis homeostatic process monoatomic ion homeostasis calcium ion homeostasis monoatomic cation homeostasis response to stimulus response to chemical response to organophosphorus response to oxygen-containing compound response to nitrogen compound response to ATP response to purine-containing compound cell adhesion cell-cell adhesion leukocyte cell-cell adhesion ribonucleotide catabolic process catabolic process organophosphate catabolic process nucleoside phosphate catabolic process AMP metabolic process purine ribonucleoside monophosphate catabolic process purine nucleoside monophosphate catabolic process purine ribonucleoside monophosphate metabolic process purine nucleoside monophosphate metabolic process ribonucleoside monophosphate catabolic process purine ribonucleotide catabolic process nucleoside monophosphate metabolic process nucleotide catabolic process purine nucleotide catabolic process carbohydrate derivative catabolic process nucleoside monophosphate catabolic process purine-containing compound catabolic process nucleobase-containing compound catabolic process AMP catabolic process ribonucleoside diphosphate metabolic process ribonucleoside diphosphate catabolic process ADP catabolic process purine nucleoside diphosphate metabolic process ADP metabolic process nucleoside diphosphate metabolic process purine nucleoside diphosphate catabolic process purine ribonucleoside diphosphate metabolic process nucleoside diphosphate catabolic process purine ribonucleoside diphosphate catabolic process developmental process animal organ development anatomical structure development biomineral tissue development tissue development animal gross anatomical part developmental process	cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle cell periphery cellular anatomical structure cell surface membrane plasma membrane external side of plasma membrane side of membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle extracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR004843	Calcineurin-like, phosphoesterase domain	Domain
A, B	IPR029052	Metallo-dependent phosphatase-like	Homologous Superfamily
A, B	IPR008334	5'-Nucleotidase, C-terminal	Domain
A, B	IPR036907	5'-Nucleotidase, C-terminal domain superfamily	Homologous Superfamily
A, B	IPR006146	5'-Nucleotidase, conserved site	Conserved Site
A, B	IPR006179	5'-Nucleotidase/apyrase	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	: P21589	hereditary arterial and articular multiple calcification syndrome Liver Cirrhosis, Experimental lung adenocarcinoma lymphoplasmacytic lymphoma malignant pancreatic neoplasm ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atopic eczema psoriasis Barrett esophagus cutaneous lupus erythematosus endometriosis gastric neoplasm hereditary diffuse gastric adenocarcinoma large cell medulloblastoma hereditary arterial and articular multiple calcification syndrome Liver Cirrhosis, Experimental lung adenocarcinoma lymphoplasmacytic lymphoma malignant pancreatic neoplasm ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia atopic eczema psoriasis Barrett esophagus cutaneous lupus erythematosus endometriosis gastric neoplasm hereditary diffuse gastric adenocarcinoma large cell medulloblastoma lung cancer malignant ependymoma medulloblastoma pancreatic intraductal papillary-mucinous carcinoma pilocytic astrocytoma atypical teratoid rhabdoid tumor Sjogren syndrome breast cancer cystic fibrosis esophageal adenocarcinoma glioblastoma invasive ductal breast carcinoma lung carcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm primitive neuroectodermal tumor B-cell chronic lymphocytic leukemia tuberculosis cancer ductal breast carcinoma in situ gastric cancer juvenile dermatomyositis