Annotations: 9LSZ

Inward-open Structure of human B0AT1

External Resource: Annotation

SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth L]	Light Chain	IGKV8	Kappa	sodium-dependent neutral amino acid transporter b(0)at1	SAbDab (2026-07-24)
C [auth H]	Heavy Chain	IGHV1	-	sodium-dependent neutral amino acid transporter b(0)at1	SAbDab (2026-07-24)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth L]	Antibody Fab Light chain	-	-	-
C [auth H]	Antibody Fab Heavy chain	-	-	-
A	Sodium-dependent neutral amino acid transporter B(0)AT1	amino acid transmembrane transporter activity neutral L-amino acid transmembrane transporter activity transporter activity transmembrane transporter activity active transmembrane transporter activity symporter activity secondary active transmembrane transporter activity	localization transport neurotransmitter transport establishment of localization amino acid transport neutral amino acid transport viral process viral life cycle transmembrane transport import into cell import across plasma membrane amino acid import across plasma membrane amino acid transmembrane transport cellular process localization transport neurotransmitter transport establishment of localization amino acid transport neutral amino acid transport viral process viral life cycle transmembrane transport import into cell import across plasma membrane amino acid import across plasma membrane amino acid transmembrane transport cellular process response to nutrient levels response to stimulus response to chemical response to nutrient monoatomic ion transmembrane transport sodium ion transmembrane transport metal ion transport monoatomic cation transmembrane transport monoatomic ion transport monoatomic cation transport sodium ion transport	cell periphery cellular anatomical structure apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle vesicle cell periphery cellular anatomical structure apical part of cell membrane 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 brush border membrane cluster of actin-based cell projections plasma membrane bounded cell projection brush border cell projection cell projection membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR000175	Sodium:neurotransmitter symporter	Family
A	IPR002438	Neutral amino acid SLC6 transporter	Family
A	IPR037272	Sodium:neurotransmitter symporter superfamily	Homologous Superfamily

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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.

9LSZ | pdb_00009lsz

Inward-open Structure of human B0AT1

External Resource: Annotation

SAbDab Antibody Annotation SAbDab Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage