2DPR

The crystal structures of the calcium-bound con-G and con-T(K7Glu) dimeric peptides demonstrate a novel metal-dependent helix-forming motif

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A, B	Conantokin-T	polymer	21	2732.8	2	UniProt (P17684) Pfam (PF10550) In PDB	Conus tulipa	Con-T
2	A, B	CALCIUM ION	non-polymer		40.1	4	Chemie (CA)
3		water	water		18.0	142	Chemie (HOH)

Sequence modifications

A, B: 1 - 21 (UniProt: P17684)

PDB	External Database	Details
Cgu 7	Lys 7	engineered mutation

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	5465.5
Non-Polymers*	Number of molecules	4
	Total formula weight	160.3
All*	Total formula weight	5625.9

*Water molecules are not included.