7KKA

Fluoride channel Fluc-Ec2 mutant S81A 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	13599.3	2	UniProt (Q6J5N4)	Escherichia coli
2	C, D (C, D)	monobody	polymer	97	10375.5	2		Homo sapiens (Human)
3	E (A)	SODIUM ION	non-polymer		23.0	1	Chemie (NA) PubChem (923)
4	F, I (A, B)	BROMIDE ION	non-polymer		79.9	2	Chemie (BR) PubChem (259)
5	G, J (A, B)	FLUORIDE ION	non-polymer		19.0	2	Chemie (F) PubChem (28179)
6	H, K, L (A, B, C)	DECYL-BETA-D-MALTOPYRANOSIDE	non-polymer		482.6	3	Chemie (DMU) PubChem (3637526) PubChem (5288091) PubChem (24776995) PubChem (45253991) PubChem (45254001) PubChem (16396531) PubChem (24802064) PubChem (45253971) PubChem (49866911) PubChem (95370473) PubChem (98046563) PubChem (5288728) PubChem (101207920) PubChem (56845266) PubChem (126735852) PubChem (58112552) PubChem (59518661) PubChem (168490163) PubChem (70796430) PubChem (70839938) PubChem (71307274) PubChem (95370474) PubChem (95370475) PubChem (95370476) PubChem (98046559) PubChem (98046561) PubChem (100941450) PubChem (100950626) PubChem (102219024) PubChem (118704896) PubChem (123134571) PubChem (124867949) PubChem (124867950) PubChem (124867951) PubChem (124867952) PubChem (126731012) PubChem (126731036) PubChem (126735974)
7	M, N, O, P (A, B, C, D)	water	water		18.0	58	Chemie (HOH)

Sequence modifications

A, B: 1 - 126 (UniProt: Q6J5N4)

PDB	External Database	Details
Lys 25	Arg 25	engineered mutation
Ala 81	Ser 81	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	47949.7
Non-Polymers*	Number of molecules	8
	Total formula weight	1668.5
All*	Total formula weight	49618.2

*Water molecules are not included.