3MTU

Structure of the Tropomyosin Overlap Complex from Chicken Smooth Muscle

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 (A, B, C, D)	Tropomyosin alpha-1 chain,Microtubule-associated protein RP/EB family member 1	polymer	75	8713.4	4	UniProt (P04268) UniProt (Q15691) Pfam (PF00261) Pfam (PF03271)	Gallus gallus (Chicken)	Alpha-tropomyosin,Tropomyosin-1,APC-binding protein EB1,End-binding protein 1,EB1
2	E, F (E, F)	Capsid assembly scaffolding protein,Tropomyosin alpha-1 chain	polymer	77	8956.4	2	UniProt (P13848) UniProt (P04268) Pfam (PF11418)	Bacillus phage phi29	Gene product 7,gp7,Head morphogenesis protein,Protein p7,Scaffold protein,Alpha-tropomyosin,Tropomyosin-1
3	G, O (A, B)	CHLORIDE ION	non-polymer		35.5	2	Chemie (CL)
4	H, I, J, K, P... (A, B, C, D, F)	1,2-ETHANEDIOL	non-polymer		62.1	9	Chemie (EDO)
5	L, M, N, Q, R... (A, B, C, D)	ETHANOL	non-polymer		46.1	7	Chemie (EOH)
6	AA, BA, CA, DA, Y... (C, D, E, F, A...)	water	water		18.0	347	Chemie (HOH)

Sequence modifications

A, B, C, D: 2 - 29 (UniProt: P04268)

PDB	External Database	Details
Gly -2	-	expression tag
Ala -1	-	expression tag
Ser 0	-	expression tag
Asp 215	-	linker

A, B, C, D: 216 - 257 (UniProt: Q15691)
E, F: 2 - 256 (UniProt: P13848)

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

E, F: 257 - 283 (UniProt: P04268)

PDB	External Database	Details
Mse 284	-	expression tag

Contents of the asymmetric unit

Polymers	Number of chains	6
	Total formula weight	52766.3
Non-Polymers*	Number of molecules	18
	Total formula weight	952.0
All*	Total formula weight	53718.3

*Water molecules are not included.