6OLY

Full-length MthK channel at 3.1 angstrom resolution

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, D (A, B, C, D)	Calcium-gated potassium channel MthK	polymer	348	38777.7	4	UniProt (O27564) Pfam (PF07885) Pfam (PF02254) Pfam (PF02080)	Methanothermobacter thermautotrophicus
2	E, F, G, H, I... (A, B, C, D)	CALCIUM ION	non-polymer		40.1	12	Chemie (CA)
3	Q, R, S, T (A, B, C, D)	water	water		18.0	18	Chemie (HOH)

Sequence modifications

A, B, C, D: 1 - 336 (UniProt: O27564)

PDB	External Database	Details
Ile 107	Met 107	engineered mutation
Leu 337	-	expression tag
Val 338	-	expression tag
Pro 339	-	expression tag
Arg 340	-	expression tag
Gly 341	-	expression tag
Ser 342	-	expression tag
His 343	-	expression tag
His 344	-	expression tag
His 345	-	expression tag
His 346	-	expression tag
His 347	-	expression tag
His 348	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	4
	Total formula weight	155110.9
Non-Polymers*	Number of molecules	12
	Total formula weight	480.9
All*	Total formula weight	155591.8

*Water molecules are not included.