4DVE

Crystal structure at 2.1 A of the S-component for biotin from an ECF-type ABC transporter

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 (A, B, C)	Biotin transporter BioY	polymer	198	21952.3	3	UniProt (A2RMJ9)	Lactococcus lactis subsp. cremoris	Biotin ECF transporter S component BioY
2	D, H, K (A, B, C)	BIOTIN	non-polymer		244.3	3	Chemie (BTN)
3	E, F, G, I, J... (A, B, C)	nonyl beta-D-glucopyranoside	non-polymer		306.4	6	Chemie (BNG)
4	M, N, O (A, B, C)	water	water		18.0	116	Chemie (HOH)

Sequence modifications

A, B, C: 2 - 188 (UniProt: A2RMJ9)

PDB	External Database	Details
Mse -9	-	expression tag
His -8	-	expression tag
His -7	-	expression tag
His -6	-	expression tag
His -5	-	expression tag
His -4	-	expression tag
His -3	-	expression tag
His -2	-	expression tag
His -1	-	expression tag
Ala 0	-	expression tag
Mse 1	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	65857.0
Non-Polymers*	Number of molecules	9
	Total formula weight	2571.3
All*	Total formula weight	68428.3

*Water molecules are not included.