7KK8

Fluoride channel Fluc-Ec2 mutant S81T with bromide

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)	Putative fluoride ion transporter CrcB	polymer	126	13629.3	2	UniProt (Q6J5N4)	Escherichia coli
2	C, D (C, D)	monobody M9	polymer	97	10375.5	2		Escherichia coli
3	E, H (A, B)	BROMIDE ION	non-polymer		79.9	2	Chemie (BR) PubChem (259)
4	F (A)	SODIUM ION	non-polymer		23.0	1	Chemie (NA) PubChem (923)
5	G, J, K (A, B, C)	DECYL-BETA-D-MALTOPYRANOSIDE	non-polymer		482.6	3	Chemie (DMU) PubChem (24776995) PubChem (16396531) PubChem (24802064) PubChem (45253991) PubChem (45254001) PubChem (45253971) PubChem (49866911) PubChem (56845266) PubChem (3637526) PubChem (58112552) PubChem (59518661) PubChem (5288091) PubChem (70796430) PubChem (70839938) PubChem (71307274) PubChem (95370474) PubChem (95370475) PubChem (95370476) PubChem (98046559) PubChem (98046561) PubChem (95370473) PubChem (100941450) PubChem (100950626) PubChem (98046563) PubChem (5288728) PubChem (101207920) PubChem (102219024) PubChem (126735852) PubChem (118704896) PubChem (123134571) PubChem (124867949) PubChem (124867950) PubChem (124867951) PubChem (124867952) PubChem (126731012) PubChem (126731036) PubChem (126735974) PubChem (168490163)
6	I (B)	FLUORIDE ION	non-polymer		19.0	1	Chemie (F) PubChem (28179)
7	L (C)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
8	M, N, O (B, C, D)	water	water		18.0	36	Chemie (HOH)

Sequence modifications

A, B: 2 - 126 (UniProt: Q6J5N4)

PDB	External Database	Details
Met 1	-	initiating methionine
Lys 25	Arg 25	conflict
Thr 81	Ser 81	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	48009.7
Non-Polymers*	Number of molecules	8
	Total formula weight	1745.5
All*	Total formula weight	49755.3

*Water molecules are not included.