Annotations: 8PG0

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth H]	PF07686	e8pg0H1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)
C [auth L]	PF07686	e8pg0L1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF07686	ECOD (1.6)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV3	-	solute carrier organic anion transporter family member 1b3	SAbDab (2024-05-10)
C [auth L]	Light Chain	IGKV1	Kappa	solute carrier organic anion transporter family member 1b3	SAbDab (2024-05-10)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Solute carrier organic anion transporter family member 1B3	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity active transmembrane transporter activity sodium-independent organic anion transmembrane transporter activity transporter activity transmembrane transporter activity organic anion transmembrane transporter activity enzyme regulator activity molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity active transmembrane transporter activity sodium-independent organic anion transmembrane transporter activity transporter activity transmembrane transporter activity organic anion transmembrane transporter activity secondary active transmembrane transporter activity lipid transporter activity lipid transmembrane transporter activity organic hydroxy compound transmembrane transporter activity monocarboxylic acid transmembrane transporter activity carboxylic acid transmembrane transporter activity organic acid transmembrane transporter activity bile acid transmembrane transporter activity	cellular response to stimulus cellular response to chemical stimulus response to stimulus response to chemical cellular response to xenobiotic stimulus cellular metabolic process cellular process metabolic process xenobiotic metabolic process response to xenobiotic stimulus organonitrogen compound catabolic process pigment catabolic process pigment metabolic process heme metabolic process cellular response to stimulus cellular response to chemical stimulus response to stimulus response to chemical cellular response to xenobiotic stimulus cellular metabolic process cellular process metabolic process xenobiotic metabolic process response to xenobiotic stimulus organonitrogen compound catabolic process pigment catabolic process pigment metabolic process heme metabolic process organonitrogen compound metabolic process catabolic process tetrapyrrole metabolic process organic cyclic compound catabolic process organic cyclic compound metabolic process organic substance metabolic process heme catabolic process porphyrin-containing compound catabolic process porphyrin-containing compound metabolic process organic substance catabolic process tetrapyrrole catabolic process localization transport monoatomic ion transport establishment of localization organic anion transport organic substance transport sodium-independent organic anion transport carboxylic acid transport lipid localization bile acid and bile salt transport lipid transport organic hydroxy compound transport organic acid transport monocarboxylic acid transport macromolecule localization	cell periphery basal part of cell membrane plasma membrane basal plasma membrane plasma membrane region cellular anatomical entity basolateral plasma membrane
B [auth H]	Fab19 (heavy chain, variable region)	-	-	-
C [auth L]	Fab19 (light chain, variable region)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036058	Kazal domain superfamily	Homologous Superfamily
A	IPR004156	Organic anion transporter polypeptide	Family
A	IPR036259	MFS transporter superfamily	Homologous Superfamily
A	IPR002350	Kazal domain	Domain
A	IPR020846	Major facilitator superfamily domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9NPD5	Rotor syndrome malignant colon neoplasm rheumatoid arthritis ulcerative colitis benign colon neoplasm Crohn disease erectile dysfunction Lung Neoplasms malignant pancreatic neoplasm pancreatic ductal adenocarcinoma colonic neoplasm cystic fibrosis lung benign neoplasm mucocutaneous lymph node syndrome pulmonary arterial hypertension Rotor syndrome malignant colon neoplasm rheumatoid arthritis ulcerative colitis benign colon neoplasm Crohn disease erectile dysfunction Lung Neoplasms malignant pancreatic neoplasm pancreatic ductal adenocarcinoma colonic neoplasm cystic fibrosis lung benign neoplasm mucocutaneous lymph node syndrome pulmonary arterial hypertension colorectal cancer dry eye syndrome lung cancer non-small cell lung carcinoma

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier (SLC) Transporter Superfamily	OATP1B3 organic anion transporting polypeptide (SLC21A8)

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 R01GM133198.