7TPT

Single-particle Cryo-EM structure of Arp2/3 complex at branched-actin junction.

Entity

Entity ID	Chain ID	Description	Type	Chain length	Formula weight	Number of molecules	DB Name (Accession)	Biological source	Descriptive keywords
1	A	Actin-related protein 3	polymer	418	47428.0	1	UniProt (P61157) Pfam (PF00022) In PDB	Bos taurus (cattle)	Actin-2,Actin-like protein 3
2	B	Actin-related protein 2	polymer	394	44818.7	1	UniProt (A7MB62) Pfam (PF00022) In PDB	Bos taurus (cattle)	Actin-like protein 2
3	C	Actin-related protein 2/3 complex subunit 1B	polymer	372	41030.8	1	UniProt (Q58CQ2) Pfam (PF00400) In PDB	Bos taurus (cattle)	Arp2/3 complex 41 kDa subunit,p41-ARC
4	D	Actin-related protein 2/3 complex subunit 2	polymer	300	34402.0	1	UniProt (Q3MHR7) Pfam (PF04045) In PDB	Bos taurus (cattle)	Arp2/3 complex 34 kDa subunit,p34-ARC
5	E	Actin-related protein 2/3 complex subunit 3	polymer	178	20572.7	1	UniProt (Q3T035) Pfam (PF04062) In PDB	Bos taurus (cattle)	Arp2/3 complex 21 kDa subunit,p21-ARC
6	F	Actin-related protein 2/3 complex subunit 4	polymer	168	19697.0	1	UniProt (Q148J6) Pfam (PF05856) In PDB	Bos taurus (cattle)	Arp2/3 complex 20 kDa subunit,p20-ARC
7	G	Actin-related protein 2/3 complex subunit 5	polymer	151	16251.3	1	UniProt (Q3SYX9) Pfam (PF04699) In PDB	Bos taurus (cattle)	Arp2/3 complex 16 kDa subunit,p16-ARC
8	H, I, J, K, L...	Actin, alpha skeletal muscle	polymer	377	42110.0	14	UniProt (P68135) Pfam (PF00022) In PDB	Oryctolagus cuniculus (rabbit)	Alpha-actin-1
9	a, b, c, d, e...	Phalloidin	polymer	7	808.9	15	BIRD (PRD_002366)	Amanita phalloides
10	N, O, P, Q, R...	MAGNESIUM ION	non-polymer		24.3	16	Chemie (MG)
11	N, O, P, Q, R...	ADENOSINE-5'-DIPHOSPHATE	non-polymer		427.2	16	Chemie (ADP)

Contents of the asymmetric unit

Polymers	Number of chains	36
	Total formula weight	825873.7
Non-Polymers*	Number of molecules	32
	Total formula weight	7224.1
All*	Total formula weight	833097.8

*Water molecules are not included.