Annotations: 9KYO

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV4	Kappa	sodium- and chloride-dependent taurine transporter	SAbDab (2025-10-24)
A [auth H]	Heavy Chain	IGHV5	-	sodium- and chloride-dependent taurine transporter	SAbDab (2025-10-24)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth A]	PF00209	Sodium:neurotransmitter symporter family (SNF)	Sodium:neurotransmitter symporter family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	Light chain of 9D5 fab	-	-	-
B [auth A]	Sodium- and chloride-dependent taurine transporter	monoatomic cation transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:sodium symporter activity amino acid:sodium symporter activity solute:monoatomic cation symporter activity gamma-aminobutyric acid:sodium:chloride symporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity secondary active monocarboxylate transmembrane transporter activity gamma-aminobutyric acid transmembrane transporter activity amino acid:monoatomic cation symporter activity transporter activity monoatomic anion:sodium symporter activity monoatomic cation transmembrane transporter activity monoatomic anion transmembrane transporter activity chloride transmembrane transporter activity solute:sodium symporter activity amino acid:sodium symporter activity solute:monoatomic cation symporter activity gamma-aminobutyric acid:sodium:chloride symporter activity monoatomic anion:monoatomic cation symporter activity secondary active transmembrane transporter activity secondary active monocarboxylate transmembrane transporter activity gamma-aminobutyric acid transmembrane transporter activity amino acid:monoatomic cation symporter activity transporter activity monoatomic anion:sodium symporter activity monocarboxylate:sodium symporter activity sodium ion transmembrane transporter activity carboxylic acid transmembrane transporter activity sodium:chloride symporter activity chloride:monoatomic cation symporter activity amino acid transmembrane transporter activity organic acid:sodium symporter activity active transmembrane transporter activity monoatomic ion transmembrane transporter activity metal ion transmembrane transporter activity monocarboxylic acid transmembrane transporter activity transmembrane transporter activity symporter activity alanine transmembrane transporter activity neutral L-amino acid transmembrane transporter activity sulfur compound transmembrane transporter activity taurine transmembrane transporter activity taurine:sodium symporter activity	localization transport neurotransmitter transport establishment of localization trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication localization transport neurotransmitter transport establishment of localization trans-synaptic signaling regulation of biological process regulation of signaling regulation of cellular process modulation of chemical synaptic transmission signaling biological regulation cell-cell signaling chemical synaptic transmission cell communication synaptic signaling regulation of trans-synaptic signaling anterograde trans-synaptic signaling regulation of cell communication cellular process transmembrane transport amino acid transport import into cell import across plasma membrane amino acid import across plasma membrane amino acid transmembrane transport nitrogen compound transport organic anion transport taurine transmembrane transport organic acid transport alkanesulfonate transmembrane transport sulfur compound transport developmental process regulation of developmental process cellular developmental process positive regulation of biological process regulation of cell differentiation positive regulation of developmental process positive regulation of cell differentiation cell differentiation positive regulation of cellular process	cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane apical part of cell apical plasma membrane plasma membrane bounded cell projection cell projection cell periphery postsynapse cellular anatomical structure postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region synaptic membrane apical part of cell apical plasma membrane plasma membrane bounded cell projection cell projection actin-based cell projection microvillus microvillus membrane cell projection membrane basal part of cell basal plasma membrane basolateral plasma membrane GABA-ergic synapse
A [auth H]	Heavy chain of 9D5 fab	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B [auth A]	IPR000175	Sodium:neurotransmitter symporter	Family
B [auth A]	IPR037272	Sodium:neurotransmitter symporter superfamily	Homologous Superfamily
B [auth A]	IPR002434	Sodium:neurotransmitter symporter, taurine	Family

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

Chains	External Link	Comment
B [auth A]	MemProtMD	Annotated as membrane protein by MemProtMD

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.