9S6C

B12 Binding protein - BtuK1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A (C)	Quinoprotein amine dehydrogenase-like protein	polymer	337	37401.7	1	UniProt (Q8A7N8) Pfam (PF16819)	Bacteroides thetaiotaomicron
2	B, C (A, B)	Quinoprotein amine dehydrogenase-like protein	polymer	339	37671.0	2	UniProt (Q8A7N8) Pfam (PF16819)	Bacteroides thetaiotaomicron
3	D, E, F (C, A, B)	CYANOCOBALAMIN	non-polymer		1356.4	3	Chemie (CNC)
4	G, H, I (C, A, B)	water	water		18.0	642	Chemie (HOH)

Sequence modifications

C: 16 - 351 (UniProt: Q8A7N8)

PDB	External Database	Details
Gly 15	-	expression tag

A, B: 16 - 351 (UniProt: Q8A7N8)

PDB	External Database	Details
Gly 13	-	expression tag
His 14	-	expression tag
Met 15	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	112743.7
Non-Polymers*	Number of molecules	3
	Total formula weight	4069.1
All*	Total formula weight	116812.9

*Water molecules are not included.