8DMK image
Deposition Date 2022-07-08
Release Date 2023-02-01
Last Version Date 2024-11-06
Entry Detail
PDB ID:
8DMK
Keywords:
STRUCTURAL PROTEIN
Title:
Cryo-EM reveals the molecular basis of laminin polymerization and LN-lamininopathies
Biological Source:
Source Organism:
Mus musculus (Taxon ID: 9606)
Host Organism:
Homo sapiens
Method Details:
Experimental Method:
ELECTRON MICROSCOPY
Resolution:
3.70 Å
Aggregation State:
PARTICLE
Reconstruction Method:
SINGLE PARTICLE
8DMK validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Laminin subunit alpha-1
Gene (Uniprot):Lama1
Chain IDs:A
Chain Length:305
Number of Molecules:1
Biological Source:Mus musculus
UniProt ID:P19137 Pfam ID:PF00055, PF00053
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Laminin subunit beta-1
Gene (Uniprot):LAMB1
Chain IDs:B
Chain Length:307
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P07942 Pfam ID:PF00055, PF00053
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Laminin subunit gamma-1
Gene (Uniprot):LAMC1
Chain IDs:C (auth: G)
Chain Length:305
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P11047 Pfam ID:PF00055, PF00053
Ligand Molecules
CA
NAG
Primary Citation
Cryo-EM reveals the molecular basis oflaminin polymerization and LN-lamininopathies.
Nat Commun 14 317 317 (2023)
PMID: 36658135 DOI: 10.1038/s41467-023-36077-z

Abstact

Laminin polymerization is the major step in basement membranes assembly. Its failures cause laminin N-terminal domain lamininopathies including Pierson syndrome. We have employed cryo-electron microscopy to determine a 3.7 Å structure of the trimeric laminin polymer node containing α1, β1 and γ1 subunits. The structure reveals the molecular basis of calcium-dependent formation of laminin lattice, and provides insights into polymerization defects manifesting in human disease.

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Protein

Chemical

Disease

Primary Citation of related structures
8DMK