2A18

carboxysome shell protein ccmK4, crystal form 2

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)	Carbon dioxide concentrating mechanism protein ccmK homolog 4	polymer	125	13454.3	3	UniProt (P73407) Pfam (PF00936)	Synechocystis sp.	ccmK4
2	D, E, F (A, B, C)	AMMONIUM ION	non-polymer		18.0	3	Chemie (NH4)
3	G, H, I (A, B, C)	water	water		18.0	80	Chemie (HOH)

Sequence modifications

A, B, C: 2 - 112 (UniProt: P73407)

PDB	External Database	Details
Met 1	-	initiating methionine
Gly 113	-	expression tag
Val 114	-	expression tag
Pro 115	-	expression tag
Arg 116	-	expression tag
Gly 117	-	expression tag
Leu 118	-	expression tag
Glu 119	-	expression tag
His 120	-	expression tag
His 121	-	expression tag
His 122	-	expression tag
His 123	-	expression tag
His 124	-	expression tag
His 125	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	3
	Total formula weight	40363.0
Non-Polymers*	Number of molecules	3
	Total formula weight	54.1
All*	Total formula weight	40417.1

*Water molecules are not included.