4K41: Actin

Crystal structure of actin in complex with marine macrolide kabiramide C. Determined by X-ray diffraction at 1.4 Å resolution. Released 1 Oct 2014.

Method: X-ray diffraction
Resolution: 1.4 Å
Organism: Oryctolagus cuniculus
Chains: 1
Atoms: 3,375
Mol. weight: 43.59 kDa
Ligands: KAB, ATP, CA
Released: 1 Oct 2014

Explore 4K41 in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

4K41 contains 26 α-helices and 19 β-strands across 1 chain. 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.

Chain A: 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	55-60	6
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	89-94	6
α-helix	98-100	3
β-strand	103-107	5	1
α-helix	113-121	9
α-helix	122-126	5
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	182-196	15
α-helix	203-216	14
α-helix	223-232	10
β-strand	238-241	4	5
α-helix	246	1
β-strand	247-250	4	5
α-helix	253-259	7
α-helix	264-267	4
α-helix	271-273	3
α-helix	274-282	9
α-helix	287-294	8
β-strand	297-300	4	4
α-helix	302-304	3
α-helix	309-320	12
β-strand	329-330	2	4
α-helix	335-337	3
α-helix	338-346	9
α-helix	350-354	5
β-strand	357-358	2	1
α-helix	359-365	7
α-helix	369-373	5

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Actin, alpha skeletal muscle	A	protein	375	Oryctolagus cuniculus	P68135 (AlphaFold model)

Sequence of entity 1 (A), FASTA

>4K41_1 Actin, alpha skeletal muscle (chains A)
DEDETTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQS
KRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMT
QIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDL
AGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSY
ELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMS
GGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQ
EYDEAGPSIVHRKCF

Ligands and cofactors

ID	Name	Formula	Copies
KAB	Kabiramide C	C48 H75 N5 O14	1
ATP	Adenosine-5'-triphosphate	C10 H16 N5 O13 P3	1
CA	Calcium ion	Ca	2

Water and common crystallization additives (MES) are not listed.

Primary citation

Structural and biochemical studies of actin in complex with synthetic macrolide tail analogues. Pereira, J.H., Petchprayoon, C., Hoepker, A.C. et al. ChemMedChem (2014) 9:2286-2293. DOI 10.1002/cmdc.201402150 · PubMed

Other PDB entries of the same protein (UniProt P68135 (AlphaFold model), which also has an AlphaFold model), best resolution first:

4B1Y 1.29 Å, Structure of the Phactr1 RPEL-3 bound to G-actin
2FXU 1.35 Å, X-ray Structure of Bistramide A- Actin Complex at 1.35 A resolution.
1QZ5 1.45 Å, Structure of rabbit actin in complex with kabiramide C
1WUA 1.45 Å, The structure of Aplyronine A-actin complex
2Q0U 1.45 Å, Structure of Pectenotoxin-2 and Latrunculin B Bound to Actin
2V52 1.45 Å, Structure of MAL-RPEL2 complexed to G-actin
3MN5 1.5 Å, Structures of actin-bound WH2 domains of Spire and the implication for filament nucleation
2PBD 1.5 Å, Ternary complex of profilin-actin with the poly-PRO-GAB domain of VASP*
5ZZA 1.53 Å, OdinProfilin/Rabbit Actin Complex
1J6Z 1.54 Å, Uncomplexed actin
1QZ6 1.6 Å, Structure of rabbit actin in complex with jaspisamide A
1S22 1.6 Å, Absolute Stereochemistry of Ulapualide A

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