2Z5I

Crystal structure of the head-to-tail junction of tropomyosin

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...	General control protein GCN4 and Tropomyosin alpha-1 chain	polymer	52	6056.8	8	UniProt (P03069) UniProt (P58772) Pfam (PF07716) In PDB	Saccharomyces cerevisiae (baker's yeast rabbit)	TM
2	I, J	Tropomyosin alpha-1 chain and General control protein GCN4	polymer	40	4537.4	2	UniProt (P58772) UniProt (P03069) In PDB	Oryctolagus cuniculus (rabbit baker's yeast)	TM
3	A, E	MAGNESIUM ION	non-polymer		24.3	2	Chemie (MG)
4		water	water		18.0	320	Chemie (HOH)

Sequence modifications

A, B, C, D, E, F, G, H: 234 - 253 (UniProt: P03069)

PDB	External Database	Details
Gly 233	-	expression tag

A, B, C, D, E, F, G, H: 254 - 284 (UniProt: P58772)
I, J: 1 - 24 (UniProt: P58772)

PDB	External Database	Details
Gly -3	-	expression tag
Ala -2	-	expression tag
Ala -1	-	expression tag
Ser 0	-	expression tag

I, J: 25 - 36 (UniProt: P03069)

Contents of the asymmetric unit

Polymers	Number of chains	10
	Total formula weight	57529.4
Non-Polymers*	Number of molecules	2
	Total formula weight	48.6
All*	Total formula weight	57578.0

*Water molecules are not included.