8T60 | pdb_00008t60

CryoEM structure of an inward-facing MelBSt at a Na(+)-bound and sugar low-affinity conformation

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	MFS_1	e8t60B01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: MFS_1	ECOD (v294.1)
A	MFS_1	e8t60A01	A: a/b three-layered sandwiches	X: ATP-grasp_6	H: ATP-grasp_6	T: ATP-grasp_6	F: MFS_1	ECOD (v294.1)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth L]	Light Chain	IGKV1	Kappa	-	SAbDab (2026-03-27)
C [auth H]	Heavy Chain	IGHV3	-	-	SAbDab (2026-03-27)
B	Heavy Chain	IGHV1	-	melibiose permease	SAbDab (2026-03-27)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13347	MFS/sugar transport protein (MFS_2)	MFS/sugar transport protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth L]	NabFab_L Chain	-	-	-
C [auth H]	NabFab_H Chain	-	-	-
B	Nb725_4	-	-	-
A	Melibiose permease	active transmembrane transporter activity transporter activity symporter activity transmembrane transporter activity secondary active transmembrane transporter activity	localization transport carbohydrate transport establishment of localization transmembrane transport cellular process monoatomic ion transport monoatomic cation transport sodium ion transport metal ion transport	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR039672	Lactose permease-like	Family
A	IPR018043	Sodium:galactoside symporter, conserved site	Conserved Site
A	IPR001927	Sodium:galactoside symporter	Domain
A	IPR036259	MFS transporter superfamily	Homologous Superfamily

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.