Annotations: 9R1F

Cryo-EM structure of human MATE1 in complex with metformin

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]	SPRY	e9r1fL1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: SPRY	ECOD (v295.2)
B [auth H]	DNA_ligase_A_N	e9r1fH1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: DNA_ligase_A_N	ECOD (v295.2)
A	IBR	e9r1fA1	A: alpha arrays	X: Hypothetical protein YqbG-like	H: Hypothetical protein YqbG-like	T: alpha/beta-Hydrolases	F: IBR	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV1	Kappa	multidrug and toxin extrusion protein 1	SAbDab (2026-09-18)
B [auth H]	Heavy Chain	IGHV3	-	multidrug and toxin extrusion protein 1	SAbDab (2026-09-18)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01554	MatE (MatE)	MatE	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	Light chain of Fab	-	-	-
B [auth H]	Heavy chain of Fab	-	-	-
A	Multidrug and toxin extrusion protein 1	L-arginine transmembrane transporter activity L-amino acid transmembrane transporter activity amino acid transmembrane transporter activity transporter activity carboxylic acid transmembrane transporter activity basic amino acid transmembrane transporter activity transmembrane transporter activity antiporter activity active transmembrane transporter activity secondary active transmembrane transporter activity polyamine transmembrane transporter activity putrescine transmembrane transporter activity xenobiotic transmembrane transporter activity monoatomic cation transmembrane transporter activity L-arginine transmembrane transporter activity L-amino acid transmembrane transporter activity amino acid transmembrane transporter activity transporter activity carboxylic acid transmembrane transporter activity basic amino acid transmembrane transporter activity transmembrane transporter activity antiporter activity active transmembrane transporter activity secondary active transmembrane transporter activity polyamine transmembrane transporter activity putrescine transmembrane transporter activity xenobiotic transmembrane transporter activity monoatomic cation transmembrane transporter activity proton transmembrane transporter activity monoatomic ion transmembrane transporter activity polyspecific organic cation:proton antiporter activity thiamine transmembrane transporter activity azole transmembrane transporter activity sulfur compound transmembrane transporter activity vitamin transmembrane transporter activity	import into cell nitrogen compound transport carboxylic acid transmembrane transport carboxylic acid transport transport import across plasma membrane amino acid transmembrane transport L-amino acid transport L-arginine import across plasma membrane establishment of localization basic amino acid transmembrane transport L-arginine transmembrane transport transmembrane transport organic acid transport amino acid transport import into cell nitrogen compound transport carboxylic acid transmembrane transport carboxylic acid transport transport import across plasma membrane amino acid transmembrane transport L-amino acid transport L-arginine import across plasma membrane establishment of localization basic amino acid transmembrane transport L-arginine transmembrane transport transmembrane transport organic acid transport amino acid transport localization basic amino acid transport L-alpha-amino acid transmembrane transport cellular process amino acid import across plasma membrane amine transport xenobiotic transport putrescine transport polyamine transport xenobiotic transmembrane transport xenobiotic export from cell response to stimulus xenobiotic detoxification by transmembrane export across the plasma membrane detoxification export from cell export across plasma membrane response to toxic substance response to chemical	cell periphery cellular anatomical structure apical part of cell membrane plasma membrane plasma membrane region apical plasma membrane basal part of cell basal plasma membrane basolateral plasma membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR045069	Multidrug and toxic compound extrusion family, eukaryotic	Family
A	IPR002528	Multi antimicrobial extrusion protein	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	: Q96FL8	kidney disease gastric ulcer Prevention of Radiation-Induced Nausea and Vomiting gingivitis subependymal giant cell astrocytoma HIV infectious disease acute myeloid leukemia lung cancer malaria non-small cell lung carcinoma COVID-19 pancreatic ductal adenocarcinoma Duchenne muscular dystrophy pneumocystosis gastroesophageal reflux disease kidney disease gastric ulcer Prevention of Radiation-Induced Nausea and Vomiting gingivitis subependymal giant cell astrocytoma HIV infectious disease acute myeloid leukemia lung cancer malaria non-small cell lung carcinoma COVID-19 pancreatic ductal adenocarcinoma Duchenne muscular dystrophy pneumocystosis gastroesophageal reflux disease psoriasis systemic mastocytosis human African trypanosomiasis Zollinger-Ellison syndrome adrenal cortex carcinoma lung carcinoma brain aneurysm malignant mesothelioma oligodendroglioma cutaneous lupus erythematosus peptic esophagitis duodenal ulcer pituitary cancer gastrointestinal stromal tumor relapsing-remitting multiple sclerosis toxoplasmosis idiopathic hypereosinophilic syndrome limb-girdle muscular dystrophy Becker muscular dystrophy chronic eosinophilic leukemia nephrosclerosis osteosarcoma dermatofibrosarcoma protuberans

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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.