8D14: Helical ADP-Pi-F-actin

Helical ADP-Pi-F-actin. Determined by electron microscopy at 2.51 Å resolution. Released 7 Sept 2022.

Method: Electron microscopy
Resolution: 2.51 Å
Organism: Gallus gallus
Chains: 3
Atoms: 9,225
Mol. weight: 127.97 kDa
Ligands: MG, PO4, ADP
Released: 7 Sept 2022

Explore 8D14 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

8D14 contains 78 α-helices and 58 β-strands across 3 chains. Residue ranges use author residue numbering, as in the PDB file, from PDBe. To see them in 3D, choose the Cartoon representation with Secondary structure coloring: helices, sheets and coils get different colors.

Chains A and B: 26 helices, 19 β-strands

Element	Residues	Length	Sheet
α-helix	6-7	2
β-strand	8-12	5	1
β-strand	16-21	6	1
β-strand	29-32	4	1
β-strand	35-38	4	2
β-strand	53-54	2	2
α-helix	56-60	5
α-helix	62-64	3
β-strand	65-68	4	2
β-strand	71-72	2	3
β-strand	75-76	2	3
α-helix	79-88	10
α-helix	89-93	5
α-helix	98-100	3
β-strand	103-107	5	1
α-helix	113-125	13
β-strand	131-136	6	1
α-helix	137-144	8
β-strand	150-155	6	4
β-strand	160-166	7	4
β-strand	169-170	2	4
α-helix	172-174	3
β-strand	176-178	3	4
α-helix	182-192	11
α-helix	193-196	4
α-helix	203-216	14
α-helix	223-232	10
β-strand	238-241	4	5
β-strand	247-250	4	5
α-helix	253-256	4
α-helix	258-261	4
α-helix	264-267	4
α-helix	274-283	10
α-helix	290-294	5
β-strand	297-300	4	4
α-helix	302-304	3
α-helix	309-320	12
α-helix	326-327	2
β-strand	329-330	2	4
α-helix	335-337	3
α-helix	338-347	10
α-helix	351-355	5
β-strand	357-358	2	1
α-helix	359-365	7
α-helix	369-373	5

Chain C: 26 helices, 20 β-strands

Element	Residues	Length	Sheet
α-helix	6-7	2
β-strand	8-12	5	11
β-strand	16-21	6	11
β-strand	29-32	4	11
β-strand	35-38	4	12
β-strand	42	1	9
β-strand	53-54	2	12
α-helix	56-60	5
α-helix	62-64	3
β-strand	65-68	4	12
β-strand	71-72	2	13
β-strand	75-76	2	13
α-helix	79-88	10
α-helix	89-93	5
α-helix	98-100	3
β-strand	103-107	5	11
α-helix	113-125	13
β-strand	131-136	6	11
α-helix	137-144	8
β-strand	150-155	6	14
β-strand	160-166	7	14
β-strand	169-170	2	14
α-helix	172-174	3
β-strand	176-178	3	14
α-helix	182-192	11
α-helix	193-196	4
α-helix	203-216	14
α-helix	223-232	10
β-strand	238-241	4	15
β-strand	247-250	4	15
α-helix	253-256	4
α-helix	258-261	4
α-helix	264-267	4
α-helix	274-283	10
α-helix	290-294	5
β-strand	297-300	4	14
α-helix	302-304	3
α-helix	309-320	12
α-helix	326-327	2
β-strand	329-330	2	14
α-helix	335-337	3
α-helix	338-347	10
α-helix	351-355	5
β-strand	357-358	2	11
α-helix	359-365	7
α-helix	369-373	5

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Actin, alpha skeletal muscle	A, B, C	protein	377	Gallus gallus	P68139 (AlphaFold model)

Sequence of entity 1 (A, B, C), FASTA

>8D14_1 Actin, alpha skeletal muscle (chains A, B, C)
MCDEDETTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEA
QSKRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREK
MTQIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRL
DLAGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEK
SYELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNV
MSGGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWIT
KQEYDEAGPSIVHRKCF

Ligands and cofactors

ID	Name	Formula	Copies
MG	Magnesium ion	Mg	3
PO4	Phosphate ion	O4 P	3
ADP	Adenosine-5'-diphosphate	C10 H15 N5 O10 P2	3

Primary citation

Bending forces and nucleotide state jointly regulate F-actin structure. Reynolds, M.J., Hachicho, C., Carl, A.G. et al. Nature (2022) 611:380-386. DOI 10.1038/s41586-022-05366-w · PubMed

Other PDB entries of the same protein (UniProt P68139 (AlphaFold model), which also has an AlphaFold model), best resolution first:

7W4Z 1.15 Å, Crystal structure of fragmin domain-1 in complex with actin (AMPPNP-form)
7W50 1.15 Å, Crystal structure of fragmin domain-1 in complex with actin (ADP-Pi-form)
7W51 1.2 Å, Crystal structure of fragmin domain-1 in complex with actin (ADP-form)
9L2N 1.7 Å, Crystal structure of Cytochalasin D bound to a filamentous conformation actin
7W52 2.0 Å, Crystal structure of fragmin domain-1 (15-160) in complex with actin
1MDU 2.2 Å, Crystal structure of the chicken actin trimer complexed with human gelsolin segment 1…
8D13 2.43 Å, Helical ADP-F-actin
7R94 2.6 Å, T-Plastin-F-actin complex
8C4E 2.6 Å, F-actin decorated by SipA426-685
9JW0 2.69 Å, Structure of the N-terminal 3 domains (V1-V3) villin bound to actin
7YNE 2.7 Å, Crystal structure of fragmin domain-1 (1-160) in complex with G-form actin
8C4C 2.7 Å, F-actin decorated by SipA497-669

Browse structure collections

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