3DZK

Crystal structure of human CD38 extracellular domain, NMN complex

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	ADP-ribosyl cyclase 1	polymer	262	30380.4	2	UniProt (P28907) Pfam (PF02267)	Homo sapiens	Cyclic ADP-ribose hydrolase 1, cADPr hydrolase 1, T10, CD38 antigen
2	C, D (A, B)	BETA-NICOTINAMIDE RIBOSE MONOPHOSPHATE	non-polymer		335.2	2	Chemie (NMN)
3	E, F (A, B)	water	water		18.0	354	Chemie (HOH)

Sequence modifications

A, B: 45 - 300 (UniProt: P28907)

PDB	External Database	Details
Lys 39	-	expression tag
Arg 40	-	expression tag
Glu 41	-	expression tag
Ala 42	-	expression tag
Glu 43	-	expression tag
Ala 44	-	expression tag
Thr 49	Gln 49	engineered mutation
Asp 100	Asn 100	engineered mutation
Asp 164	Asn 164	engineered mutation
Asp 209	Asn 209	engineered mutation
Asp 219	Asn 219	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	60760.8
Non-Polymers*	Number of molecules	2
	Total formula weight	670.5
All*	Total formula weight	61431.2

*Water molecules are not included.