3UK8

The crystal structure of the cd-bound domain 3 of the cadmium carbonic anhydrase from marine diatom Thalassiosira weissflogii

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B (A, B)	Cadmium-specific carbonic anhydrase	polymer	231	24826.4	2	UniProt (Q50EL4) Pfam (PF18484)	Thalassiosira weissflogii (Marine diatom)
2	C, E (A, B)	CADMIUM ION	non-polymer		112.4	2	Chemie (CD)
3	D, F (A, B)	ACETATE ION	non-polymer		59.0	2	Chemie (ACT)
4	G, H (A, B)	water	water		18.0	271	Chemie (HOH)

Sequence modifications

A, B: 433 - 642 (UniProt: Q50EL4)

PDB	External Database	Details
Met -20	-	expression tag
Gly -19	-	expression tag
Ser -18	-	expression tag
Ser -17	-	expression tag
His -16	-	expression tag
His -15	-	expression tag
His -14	-	expression tag
His -13	-	expression tag
His -12	-	expression tag
His -11	-	expression tag
Ser -10	-	expression tag
Ser -9	-	expression tag
Gly -8	-	expression tag
Leu -7	-	expression tag
Val -6	-	expression tag
Pro -5	-	expression tag
Arg -4	-	expression tag
Gly -3	-	expression tag
Ser -2	-	expression tag
His -1	-	expression tag
Met 0	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	49652.8
Non-Polymers*	Number of molecules	4
	Total formula weight	342.9
All*	Total formula weight	49995.7

*Water molecules are not included.