4L75

Ca2+-bound D184N mutant MthK RCK domain at 2.4 Angstrom

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, E... (A, B, C, D, E...)	Calcium-gated potassium channel MthK	polymer	242	26886.6	6	UniProt (O27564) Pfam (PF02254) Pfam (PF02080)	Methanothermobacter thermautotrophicus
2	G, H, I, J, K... (A, B, C, D, E...)	CALCIUM ION	non-polymer		40.1	6	Chemie (CA)
3	M, N, O, P, Q... (A, B, C, D, E...)	water	water		18.0	237	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: 107 - 336 (UniProt: O27564)

PDB	External Database	Details
Asn 184	Asp 184	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	6
	Total formula weight	161319.7
Non-Polymers*	Number of molecules	6
	Total formula weight	240.5
All*	Total formula weight	161560.1

*Water molecules are not included.