6VAN

Crystal structure of caltubin from the great pond snail

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)	Caltubin, EF-hand	polymer	144	16471.6	2	UniProt (Q2VA57)	Lymnaea stagnalis (Great pond snail)	Calcium-binding protein
2	C, D, E, F, G... (A, B)	STRONTIUM ION	non-polymer		87.6	16	Chemie (SR)
3	K, U (A, B)	1,2-ETHANEDIOL	non-polymer		62.1	2	Chemie (EDO)
4	L, V, W (A, B)	UNKNOWN ATOM OR ION	non-polymer			3	Chemie (UNX)
5	X, Y (A, B)	water	water		18.0	316	Chemie (HOH)

Sequence modifications

A, B: 36 - 125 (PDB: 6VAN)
A, B: 126 - 179 (UniProt: Q2VA57)

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	32943.1
Non-Polymers*	Number of molecules	21
	Total formula weight	1526.1
All*	Total formula weight	34469.2

*Water molecules are not included.