1F95

SOLUTION STRUCTURE OF DYNEIN LIGHT CHAIN 8 (DLC8) AND BIM PEPTIDE COMPLEX

1F95 の概要

• エントリーDOI: 10.2210/pdb1f95/pdb
• 関連するPDBエントリー: 1F3C
• 分子名称: DYNEIN, BCL2-LIKE 11 (APOPTOSIS FACILITATOR) (2 entities in total)
• 機能のキーワード: dynein, light chain, dlc8, bim, apoptosis, contractile protein-peptide complex, contractile protein/peptide
• 由来する生物種: Rattus norvegicus (Norway rat); 詳細
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 22766.03

構造登録者

Fan, J.-S.,Zhang, Q.,Tochio, H.,Li, M.,Zhang, M. (登録日: 2000-07-07, 公開日: 2001-02-28, 最終更新日: 2024-05-01)

主引用文献

Fan, J.,Zhang, Q.,Tochio, H.,Li, M.,Zhang, M.
Structural basis of diverse sequence-dependent target recognition by the 8 kDa dynein light chain.
J.Mol.Biol., 306:97-108, 2001

PubMed Abstract: Dyneins are multi-subunit molecular motors that translocate molecular cargoes along microtubules. Other than acting as an essential component of the dynein motor complex, the 89-residue subunit of dynein light chain (DLC8) also regulates a number of other biological events by binding to various proteins and enzymes. Currently known DLC8 targets include neuronal nitric oxide synthase; the proapoptotic Bcl-2 family member protein designated Bim; a Drosophila RNA localization protein Swallow, myosin V, neuronal scaffolding protein GKAP, and IkappaBalpha, an inhibitor of the NFkappaB transcription factor. The DLC8-binding domains of the various targets are confined within a short, continuous stretch of amino acid residues. However, these domains do not share any obvious sequence homology with each other. Here, the three-dimensional structures of DLC8 complexed with two peptides corresponding to the DLC8-binding domains of neuronal nitric oxide synthase and Bim, respectively, were determined by NMR spectroscopy. Although the two DLC8-binding peptides have entirely different amino acid sequences, both peptides bind to the protein with a remarkable similar conformation by engaging the symmetric DLC8 dimer through antiparallel beta-sheet augmentation via the beta2 strand of the protein. Structural comparison indicates that the two target peptides use different regions within the conformational flexible peptide-binding channels to achieve binding specificity. We have also re-determined the apo-form solution structure of DLC8 in this work. The structures of the DLC8/target peptide complexes, together with the dynamic properties of the protein, provide a molecular basis of DLC8's diverse amino acid sequence-dependent target recognition.

PubMed: 11178896
DOI: 10.1006/jmbi.2000.4374

実験手法

SOLUTION NMR