4M64 | pdb_00004m64

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Tudor_3	e4m64A1	A: a/b three-layered sandwiches	X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	F: Tudor_3	ECOD (v294.1)
B	YonK	e4m64B2	A: a/b three-layered sandwiches	X: DP domain	H: DP domain	T: DP domain	F: YonK	ECOD (v294.1)
B	CBS	e4m64B3	A: a/b three-layered sandwiches	X: Thioredoxin-like	H: ClpP/crotonase	T: ClpP/crotonase	F: CBS	ECOD (v294.1)
C	AsnC_trans_reg_3	e4m64C3	A: a/b three-layered sandwiches	X: DEATH domain	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: AsnC_trans_reg_3	ECOD (v294.1)
D	Tudor_3	e4m64D1	A: a/b three-layered sandwiches	X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	F: Tudor_3	ECOD (v294.1)
D	HTH_24	e4m64D3	A: a/b three-layered sandwiches	X: Fusion glycoprotein F2	H: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	T: MoeA-I/Ornithine decarboxylase-C/Reverse ferredoxin-like domain in RNA-polymerase	F: HTH_24	ECOD (v294.1)

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

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Melibiose carrier protein	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

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

Chains	External Link	Type	Class	Superfamily	Family
A, B, C, D	OPM	Transmembrane	Alpha-helical polytopic	Major Facilitator Superfamily (MFS)	Glycoside-pentoside-hexuronide:cation symporter

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

Chains	External Link	Comment
A, B, C, D	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A, B, C, D	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Major Facilitator Superfamily (MFS) Transporters	MelB Na⁺/melibiose symporter

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.

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