8TEG

Cryo-EM structure of Arabidopsis thaliana Bor1 in lipid nanodiscs (protomer-focused refinement)

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: PDBTM

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Nucleobase/cation symporter 2, NCS2-like	8092956	3002647	SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00955	HCO3- transporter integral membrane domain (HCO3_cotransp)	HCO3- transporter integral membrane domain	This family contains Band 3 anion exchange proteins that exchange CL-/HCO3- such as Swiss:P48751. This family also includes cotransporters of Na+/HCO3- such as Swiss:O15153.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Boron transporter 1	antiporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity transporter activity transmembrane transporter activity inorganic anion transmembrane transporter activity solute:inorganic anion antiporter activity secondary active transmembrane transporter activity active borate transmembrane transporter activity	chemical homeostasis homeostatic process monoatomic ion homeostasis cellular response to stimulus cellular response to nutrient levels response to nutrient levels cellular response to chemical stimulus response to stimulus response to boron-containing substance cellular response to boron-containing substance levels response to chemical cellular process transmembrane transport localization chemical homeostasis homeostatic process monoatomic ion homeostasis cellular response to stimulus cellular response to nutrient levels response to nutrient levels cellular response to chemical stimulus response to stimulus response to boron-containing substance cellular response to boron-containing substance levels response to chemical cellular process transmembrane transport localization borate transmembrane transport borate transport transport inorganic ion transmembrane transport inorganic anion transmembrane transport establishment of localization inorganic anion transport monoatomic anion transport monoatomic ion transport	endosome membrane membrane-bounded organelle intracellular anatomical structure membrane endosome intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle endosome membrane membrane-bounded organelle intracellular anatomical structure membrane endosome intracellular vesicle cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle membrane bounding membrane of organelle vesicle membrane cytoplasmic vesicle organelle cytoplasm vesicle organelle membrane cell periphery plasma membrane vacuolar membrane vacuole

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011531	Bicarbonate transporter-like, transmembrane domain	Domain
A, B	IPR003020	Bicarbonate transporter, eukaryotic	Family

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

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.