3BAS: PDB entry 3BAS

Crystal structure of the N-terminal region of the scallop myosin rod, monoclinic (C2) form. Determined by X-ray diffraction at 2.3 Å resolution. Released 8 Jan 2008.

Method: X-ray diffraction
Resolution: 2.3 Å
Organisms: Argopecten irradians, Saccharomyces cerevisiae
Chains: 2
Atoms: 1,445
Mol. weight: 21.25 kDa
Released: 8 Jan 2008

Explore 3BAS in 3D Show helices and sheets RCSB PDB PDBe

Secondary structure: helices and β-sheets

3BAS contains 2 α-helices and 0 β-strands across 2 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.

Chain A: 1 helix, 0 β-strands

Element	Residues	Length	Sheet
α-helix	841-916	76

Chain B: 1 helix, 0 β-strands

Element	Residues	Length	Sheet
α-helix	838-916	79

Molecules and chains

Molecule	Chains	Type	Length	Organism	UniProt
Myosin heavy chain, striated muscle/General control protein GCN4 chimera	A, B	protein	89	Argopecten irradians, Saccharomyces cerevisiae	P03069 (AlphaFold model), P24733 (AlphaFold model)

Sequence of entity 1 (A, B), FASTA

>3BAS_1 Myosin heavy chain, striated muscle/General control protein GCN4 chimera (chains A, B)
GSHMPLLSIARQEEEMKEQLKQMDKMKEDLAKTERIKKELEEQNVTLLEQKNDLFGSMKQ
LEDKVEELLSKNYHLENEVARLKKLVGER

Primary citation

An unstable head-rod junction may promote folding into the compact off-state conformation of regulated myosins. Brown, J.H., Yang, Y., Reshetnikova, L. et al. J Mol Biol (2008) 375:1434-1443. DOI 10.1016/j.jmb.2007.11.071 · PubMed

Other PDB entries of the same protein (UniProt P03069 (AlphaFold model), which also has an AlphaFold model), best resolution first:

3AZD 0.98 Å, Crystal structure of tropomyosin N-terminal fragment at 0.98A resolution
2WQ1 1.08 Å, GCN4 leucine zipper mutant with three IxxNTxx motifs coordinating bromide
2WQ0 1.12 Å, GCN4 leucine zipper mutant with three IxxNTxx motifs coordinating chloride
4OWI 1.2 Å, peptide structure
2WQ3 1.22 Å, GCN4 leucine zipper mutant with three IxxNTxx motifs coordinating chloride and nitrate
2HY6 1.25 Å, A seven-helix coiled coil
2WPZ 1.25 Å, GCN4 leucine zipper mutant with two VxxNxxx motifs coordinating chloride
6PSA 1.3 Å, PIE12 D-peptide against HIV entry (in complex with IQN17 Q577R resistance mutant)
2IPZ 1.35 Å, A Parallel Coiled-Coil Tetramer with Offset Helices
2YNY 1.35 Å, Salmonella enterica SadA 255-302 fused to GCN4 adaptors (SadAK1)
5APU 1.35 Å, Sequence IANKEDKAD inserted between GCN4 adaptors - Structure A9b black
2WQ2 1.36 Å, GCN4 leucine zipper mutant with three IxxNTxx motifs coordinating iodide

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