1DEJ

CRYSTAL STRUCTURE OF A DICTYOSTELIUM/TETRAHYMENA CHIMERA ACTIN (MUTANT 646: Q228K/T229A/A230Y/A231K/S232E/E360H) IN COMPLEX WITH HUMAN GELSOLIN SEGMENT 1

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	S	GELSOLIN	polymer	127	14205.0	1	UniProt (P06396) Pfam (PF00626) In PDB	Homo sapiens (human)
2	A	CHIMERIC ACTIN	polymer	375	41832.7	1	UniProt (P07830) Pfam (PF00022) In PDB	Dictyostelium discoideum Tetrahymena thermophila ( )
3	S, A	CALCIUM ION	non-polymer		40.1	3	Chemie (CA)
4	A	ADENOSINE-5'-TRIPHOSPHATE	non-polymer		507.2	1	Chemie (ATP)
5		water	water		18.0	405	Chemie (HOH)

Sequence modifications

S: 4 - 127 (UniProt: P06396)

PDB	External Database	Details
Cys 35	Asn 84	engineered mutation
Met 1	-	expression tag
Gly 2	-	expression tag
Ser 3	-	expression tag

A: 1 - 375 (UniProt: P07830)

PDB	External Database	Details
His 360	Glu 360	SEE REMARK 999
Hic 73	His 73	modified residue

Contents of the asymmetric unit

Polymers	Number of chains	2
	Total formula weight	56037.7
Non-Polymers*	Number of molecules	4
	Total formula weight	627.4
All*	Total formula weight	56665.1

*Water molecules are not included.