6ZYX image
Deposition Date 2020-08-03
Release Date 2021-01-20
Last Version Date 2024-05-01
Entry Detail
PDB ID:
6ZYX
Keywords:
MOTOR PROTEIN
Title:
Outer Dynein Arm-Shulin complex - Shulin region from Tetrahymena thermophila
Biological Source:
Source Organism:
Tetrahymena thermophila CU428 (Taxon ID: 452467)
Host Organism:
Spodoptera frugiperda
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
4.30 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
6ZYX validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein heavy chain, outer arm protein
Gene (Uniprot):TTHERM_01276420
Chain IDs:A (auth: C)
Chain Length:4620
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q22A67 Pfam ID:PF08385, PF08393, PF12774, PF17852, PF12775, PF17857, PF12780, PF12777, PF12781, PF03028, PF18198, PF18199
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein light chain
Gene (Uniprot):TTHERM_00971840
Chain IDs:B (auth: J)
Chain Length:93
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q24DI9 Pfam ID:PF01221
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein light chain
Gene (Uniprot):TTHERM_00023950
Chain IDs:C (auth: K)
Chain Length:111
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q22R86 Pfam ID:PF01221
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein light chain
Gene (Uniprot):TTHERM_000442909
Chain IDs:D (auth: L)
Chain Length:111
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:W7XJB1 Pfam ID:PF01221
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein light chain
Gene (Uniprot):TTHERM_01079060
Chain IDs:E (auth: M)
Chain Length:87
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q24CE5 Pfam ID:PF01221
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein light chain 2A
Chain IDs:F (auth: N)
Chain Length:132
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q1HGH8 Pfam ID:PF03645
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein light chain tctex-type 1 protein
Gene (Uniprot):TTHERM_00392979
Chain IDs:G (auth: O)
Chain Length:117
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:A4VEB3 Pfam ID:PF03645
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Shulin
Gene (Uniprot):TTHERM_00122270
Chain IDs:H (auth: Y)
Chain Length:1200
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q22YU3
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Dynein intermediate chain 2
Gene (Uniprot):TTHERM_00487150
Chain IDs:I (auth: d)
Chain Length:667
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:I7M008 Pfam ID:PF00400
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Flagellar outer dynein arm intermediate protein, putative
Gene (Uniprot):TTHERM_00079230
Chain IDs:J (auth: e)
Chain Length:670
Number of Molecules:1
Biological Source:Tetrahymena thermophila CU428
UniProt ID:Q23FU1
Ligand Molecules
GTP
Primary Citation
Shulin packages axonemal outer dynein arms for ciliary targeting.
Science 371 910 916 (2021)
PMID: 33632841 DOI: 10.1126/science.abe0526

Abstact

The main force generators in eukaryotic cilia and flagella are axonemal outer dynein arms (ODAs). During ciliogenesis, these ~1.8-megadalton complexes are assembled in the cytoplasm and targeted to cilia by an unknown mechanism. Here, we used the ciliate Tetrahymena to identify two factors (Q22YU3 and Q22MS1) that bind ODAs in the cytoplasm and are required for ODA delivery to cilia. Q22YU3, which we named Shulin, locked the ODA motor domains into a closed conformation and inhibited motor activity. Cryo-electron microscopy revealed how Shulin stabilized this compact form of ODAs by binding to the dynein tails. Our findings provide a molecular explanation for how newly assembled dyneins are packaged for delivery to the cilia.

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Disease

Primary Citation of related structures
6ZYX