Annotations: 9IAS

Sulfate transporter SLC26A11 in nanodiscs with nanobody Nb4

External Resource: Annotation

SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C, D	Heavy Chain	IGHV1	-	sodium-independent sulfate anion transporter	SAbDab (2026-06-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00916	Sulfate permease family (Sulfate_transp)	Sulfate permease family	-	Family
A, B	PF01740	STAS domain (STAS)	STAS domain	The STAS (after Sulphate Transporter and AntiSigma factor antagonist) domain is found in the C terminal region of Sulphate transporters and bacterial antisigma factor antagonists. It has been suggested that this domain may have a general NTP binding ...	The STAS (after Sulphate Transporter and AntiSigma factor antagonist) domain is found in the C terminal region of Sulphate transporters and bacterial antisigma factor antagonists. It has been suggested that this domain may have a general NTP binding function [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	nanobody Nb4	-	-	-
A, B	Sodium-independent sulfate anion transporter	chloride transmembrane transporter activity monoatomic anion transmembrane transporter activity bicarbonate transmembrane transporter activity bicarbonate:monoatomic anion antiporter activity secondary active transmembrane transporter activity antiporter activity active transmembrane transporter activity chloride:bicarbonate antiporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity solute:inorganic anion antiporter activity sulfate transmembrane transporter activity sulfur compound transmembrane transporter activity chloride transmembrane transporter activity monoatomic anion transmembrane transporter activity bicarbonate transmembrane transporter activity bicarbonate:monoatomic anion antiporter activity secondary active transmembrane transporter activity antiporter activity active transmembrane transporter activity chloride:bicarbonate antiporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity solute:inorganic anion antiporter activity sulfate transmembrane transporter activity sulfur compound transmembrane transporter activity passive transmembrane transporter activity monoatomic ion channel activity channel activity monoatomic anion channel activity chloride channel activity secondary active sulfate transmembrane transporter activity	organic acid transport localization carboxylic acid transport transport oxalate transport dicarboxylic acid transport establishment of localization monoatomic ion transmembrane transport chloride transport transmembrane transport chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport organic acid transport localization carboxylic acid transport transport oxalate transport dicarboxylic acid transport establishment of localization monoatomic ion transmembrane transport chloride transport transmembrane transport chloride transmembrane transport monoatomic anion transport monoatomic anion transmembrane transport monoatomic ion transport cellular process inorganic anion transport sulfate transmembrane transport sulfur compound transport	vacuolar membrane membrane-bounded organelle intracellular anatomical structure membrane lytic vacuole vacuole intracellular membrane-bounded organelle intracellular organelle lytic vacuole membrane bounding membrane of organelle cellular anatomical structure organelle lysosomal membrane cytoplasm vacuolar membrane membrane-bounded organelle intracellular anatomical structure membrane lytic vacuole vacuole intracellular membrane-bounded organelle intracellular organelle lytic vacuole membrane bounding membrane of organelle cellular anatomical structure organelle lysosomal membrane cytoplasm organelle membrane lysosome Golgi apparatus endomembrane system cell periphery apical part of cell plasma membrane plasma membrane region apical plasma membrane extracellular exosome extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle basal part of cell basal plasma membrane basolateral plasma membrane endoplasmic reticulum

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR002645	STAS domain	Domain
A, B	IPR018045	Sulphate anion transporter, conserved site	Conserved Site
A, B	IPR036513	STAS domain superfamily	Homologous Superfamily
A, B	IPR011547	SLC26A/SulP transporter domain	Domain
A, B	IPR001902	SLC26A/SulP transporter	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	: Q86WA9	medulloblastoma psoriasis ovarian cancer Pick disease

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