4QTN | pdb_00004qtn

Crystal structure of the Vitamin B3 transporter PnuC

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM
Membrane Protein Annotation: PDBTM
Membrane Protein Annotation: MemProtMD
Membrane Protein Annotation: mpstruc

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C	NMN_transporter	e4qtnC1	A: alpha duplicates or obligate multimers	X: TOG superfamily	H: PnuC (From Topology)	T: PnuC	F: NMN_transporter	ECOD (1.6)
B	NMN_transporter	e4qtnB1	A: alpha duplicates or obligate multimers	X: TOG superfamily	H: PnuC (From Topology)	T: PnuC	F: NMN_transporter	ECOD (1.6)
A	NMN_transporter	e4qtnA1	A: alpha duplicates or obligate multimers	X: TOG superfamily	H: PnuC (From Topology)	T: PnuC	F: NMN_transporter	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF04973	Nicotinamide mononucleotide transporter (NMN_transporter)	Nicotinamide mononucleotide transporter	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

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

InterPro: Protein Family Classification InterPro Database Homepage

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

Membrane Protein Annotation: OPM OPM Database Homepage

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

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: MemProtMD MemProtMD Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

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.