4QTN

Crystal structure of the Vitamin B3 transporter PnuC

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B, C	Nicotinamide riboside transporter PnuC	polymer	244	28245.9	3	UniProt (D2ZZC1) Pfam (PF04973) In PDB	Neisseria mucosa ATCC 25996
2	A, B, C	Nicotinamide riboside	non-polymer		255.2	3	Chemie (NNR)
3	A, B, C	octyl beta-D-glucopyranoside	non-polymer		292.4	4	Chemie (BOG)

Sequence modifications

A, B, C: 3 - 238 (UniProt: D2ZZC1)

PDB	External Database	Details
Mse 1	-	expression tag
Gly 2	-	expression tag
His 239	-	expression tag
His 240	-	expression tag
His 241	-	expression tag
His 242	-	expression tag
His 243	-	expression tag
His 244	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	84737.7
Non-Polymers*	Number of molecules	7
	Total formula weight	1935.2
All*	Total formula weight	86672.9

*Water molecules are not included.