Annotations: 8BVR

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Spt4	e8bvrB1	A: a/b three-layered sandwiches	X: RNase A-like	H: RNase A-like	T: RNase A-like	F: Spt4	ECOD (v294.1)
A		e8bvrA01	A: a/b three-layered sandwiches	X: Rossmann-like	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F:	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	solute carrier family 22 member 6	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00083	Sugar (and other) transporter (Sugar_tr)	Sugar (and other) transporter	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	Synthetic nanobody (Sybody)	-	-	-
A	Solute carrier family 22 member 6	antiporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity secondary active transmembrane transporter activity lipid transporter activity icosanoid transmembrane transporter activity lipid transmembrane transporter activity prostaglandin transmembrane transporter activity ion binding binding anion binding chloride ion binding small molecule binding antiporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity secondary active transmembrane transporter activity lipid transporter activity icosanoid transmembrane transporter activity lipid transmembrane transporter activity prostaglandin transmembrane transporter activity ion binding binding anion binding chloride ion binding small molecule binding solute:inorganic anion antiporter activity dicarboxylic acid transmembrane transporter activity alpha-ketoglutarate transmembrane transporter activity carboxylic acid transmembrane transporter activity xenobiotic transmembrane transporter activity identical protein binding protein binding	localization organic anion transport transport sodium-independent organic anion transport establishment of localization multicellular organismal process kidney epithelium development metanephric proximal tubule development nephron tubule development metanephric epithelium development renal system development multicellular organism development metanephros development renal tubule development localization organic anion transport transport sodium-independent organic anion transport establishment of localization multicellular organismal process kidney epithelium development metanephric proximal tubule development nephron tubule development metanephric epithelium development renal system development multicellular organism development metanephros development renal tubule development anatomical structure development nephron development metanephric nephron epithelium development system development nephron epithelium development developmental process epithelium development proximal tubule development tube development metanephric nephron tubule development animal organ development tissue development metanephric tubule development kidney development monoatomic anion transport monoatomic ion transport organic acid transport alpha-ketoglutarate transport carboxylic acid transport dicarboxylic acid transport excretion renal system process system process renal tubular secretion prostaglandin transport lipid localization lipid transport monocarboxylic acid transport fatty acid transport icosanoid transport macromolecule localization	cell periphery cellular anatomical structure basal part of cell membrane plasma membrane basal plasma membrane plasma membrane region membrane microdomain membrane raft plasma membrane raft caveola basolateral plasma membrane protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005828	Major facilitator, sugar transporter-like	Family
A	IPR020846	Major facilitator superfamily domain	Domain
A	IPR004749	Organic cation transport protein/SVOP	Family
A	IPR036259	MFS transporter superfamily	Homologous Superfamily

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Solute Carrier (SLC) Transporter Superfamily	organic anion transporter 1 (OAT1, SLC22A6 family) in complex with synthetic nanobody Syb, apo form

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.