2Q0U: Pectenotoxin-2 and Latrunculin B

Structure of Pectenotoxin-2 and Latrunculin B Bound to Actin. Determined by X-ray diffraction at 1.45 Å resolution. Released 17 Jul 2007.

Method: X-ray diffraction
Resolution: 1.45 Å
Organism: Oryctolagus cuniculus
Chains: 1
Atoms: 3,194
Mol. weight: 43.72 kDa
Ligands: CA, ATP, LAB, PXT
Released: 17 Jul 2007

Explore 2Q0U in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

2Q0U contains 24 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: 24 helices, 19 β-strands

Element	Residues	Length	Sheet
β-strand	8-12	5	1
β-strand	16-21	6	1
β-strand	29-32	4	1
β-strand	35-36	2	2
β-strand	53-54	2	2
α-helix	55-59	5
β-strand	67-68	2	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	113-121	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	272-273	2
α-helix	274-283	10
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	338-347	10
α-helix	350-352	3
β-strand	357-358	2	1
α-helix	359-365	7
α-helix	366-368	3
α-helix	369-373	5

Molecules and chains

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

Sequence of entity 1 (A), FASTA

>2Q0U_1 Actin (chains A)
DEDETTALVCDNGSGLVKAGFAGDDAPRAVFPSIVGRPRHQGVMVGMGQKDSYVGDEAQS
KRGILTLKYPIEHGIITNWDDMEKIWHHTFYNELRVAPEEHPTLLTEAPLNPKANREKMT
QIMFETFNVPAMYVAIQAVLSLYASGRTTGIVLDSGDGVTHNVPIYEGYALPHAIMRLDL
AGRDLTDYLMKILTERGYSFVTTAEREIVRDIKEKLCYVALDFENEMATAASSSSLEKSY
ELPDGQVITIGNERFRCPETLFQPSFIGMESAGIHETTYNSIMKCDIDIRKDLYANNVMS
GGTTMYPGIADRMQKEITALAPSTMKIKIIAPPERKYSVWIGGSILASLSTFQQMWITKQ
EYDEAGPSIVHRKCF

Ligands and cofactors

ID	Name	Formula	Copies
CA	Calcium ion	Ca	2
ATP	Adenosine-5'-triphosphate	C10 H16 N5 O13 P3	1
LAB	Latrunculin B	C20 H29 N O5 S	1
PXT	Pectenotoxin-2	C47 H68 O14	1

Primary citation

A structural basis for regulation of actin polymerization by pectenotoxins. Allingham, J.S., Miles, C.O., Rayment, I. J Mol Biol (2007) 371:959-970. DOI 10.1016/j.jmb.2007.05.056 · 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.
4K41 1.4 Å, Crystal structure of actin in complex with marine macrolide kabiramide C
1QZ5 1.45 Å, Structure of rabbit actin in complex with kabiramide C
1WUA 1.45 Å, The structure of Aplyronine A-actin complex
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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