3SSR

CcmK2 dodecamer - 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 (B, A)	Carbon dioxide concentrating mechanism protein	polymer	110	11990.7	2	UniProt (Q8DKB2) Pfam (PF00936)	Thermosynechococcus elongatus
2	C (B)	SULFATE ION	non-polymer		96.1	1	Chemie (SO4)
3	D, E (B, A)	water	water		18.0	106	Chemie (HOH)

Sequence modifications

B, A: 1 - 102 (UniProt: Q8DKB2)

PDB	External Database	Details
Leu 103	-	expression tag
Glu 104	-	expression tag
His 105	-	expression tag
His 106	-	expression tag
His 107	-	expression tag
His 108	-	expression tag
His 109	-	expression tag
His 110	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	23981.3
Non-Polymers*	Number of molecules	1
	Total formula weight	96.1
All*	Total formula weight	24077.4

*Water molecules are not included.