4QTN | pdb_00004qtn

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	ERG4_ERG24	e4qtnA1	A: a/b three-layered sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: N-terminal domain of Delta(14)-sterol reductase, MaSR1	F: ERG4_ERG24	ECOD (v294.1)
B	ERG4_ERG24	e4qtnB1	A: a/b three-layered sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: N-terminal domain of Delta(14)-sterol reductase, MaSR1	F: ERG4_ERG24	ECOD (v294.1)
C	Arg_tRNA_synt_N	e4qtnC1	A: a/b three-layered sandwiches	X: Insertion subdomain in DsbA-like	H: Insertion subdomain in DsbA-like	T: Insertion subdomain in DsbA-like	F: Arg_tRNA_synt_N	ECOD (v294.1)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Nicotinamide riboside transporter PnuC	carbohydrate derivative transmembrane transporter activity nucleoside transmembrane transporter activity nucleobase-containing compound transmembrane transporter activity transporter activity nicotinamide riboside transmembrane transporter activity transmembrane transporter activity identical protein binding protein binding binding	protein-containing complex organization protein trimerization cellular component organization cellular component biogenesis cellular component assembly protein homotrimerization protein complex oligomerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A, B, C	IPR006419	Nicotinamide mononucleotide transporter PnuC	Family

Chains	External Link	Type	Class	Superfamily	Family
A, B, C	OPM	Transmembrane	Alpha-helical polytopic	Nicotinamide mononucleotide transporter	Nicotinamide mononucleotide transporter

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

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

Chains	Resource Link	Group	Subgroup	Protein
A, B, C	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	SWEET and semiSWEET Transporters, and Their Relatives	PnuC vitamin B₃ transporter

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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