5SWC

The structure of the beta-carbonic anhydrase CcaA

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...)	Carbonic anhydrase	polymer	239	26871.4	6	UniProt (Q54735) Pfam (PF00484)	Synechocystis sp. (strain PCC 6803 / Kazusa)	Carbonate dehydratase
2	BA, G, JA, M, S... (E, A, F, B, C...)	ZINC ION	non-polymer		65.4	6	Chemie (ZN)
3	CA, DA, H, I, T (E, A, C)	CHLORIDE ION	non-polymer		35.5	5	Chemie (CL)
4	AA, EA, FA, GA, HA... (D, E, A, F, B...)	FORMIC ACID	non-polymer		46.0	21	Chemie (FMT)
5	MA, NA, OA, PA, QA... (A, B, C, D, E...)	water	water		18.0	1038	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F: 1 - 220 (UniProt: Q54735)

PDB	External Database	Details
Met -18	-	expression tag
Gly -17	-	expression tag
Ser -16	-	expression tag
Ser -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
His -10	-	expression tag
Ser -9	-	expression tag
Ser -8	-	expression tag
Gly -7	-	expression tag
Leu -6	-	expression tag
Val -5	-	expression tag
Pro -4	-	expression tag
Arg -3	-	expression tag
Gly -2	-	expression tag
Ser -1	-	expression tag
His 0	-	expression tag
Leu 219	Pro 219	conflict

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	161228.4
Non-Polymers*	Number of molecules	32
	Total formula weight	1536.2
All*	Total formula weight	162764.6

*Water molecules are not included.