National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R35 GM132120
米国
National Research Foundation (NRF, Singapore)
MOH-000155
シンガポール
引用
ジャーナル: Cell / 年: 2021 タイトル: Structural Basis of WLS/Evi-Mediated Wnt Transport and Secretion. 著者: Rie Nygaard / Jia Yu / Jonathan Kim / Daniel R Ross / Giacomo Parisi / Oliver B Clarke / David M Virshup / Filippo Mancia / 要旨: Wnts are evolutionarily conserved ligands that signal at short range to regulate morphogenesis, cell fate, and stem cell renewal. The first and essential steps in Wnt secretion are their O- ...Wnts are evolutionarily conserved ligands that signal at short range to regulate morphogenesis, cell fate, and stem cell renewal. The first and essential steps in Wnt secretion are their O-palmitoleation and subsequent loading onto the dedicated transporter Wntless/evenness interrupted (WLS/Evi). We report the 3.2 Å resolution cryogenic electron microscopy (cryo-EM) structure of palmitoleated human WNT8A in complex with WLS. This is accompanied by biochemical experiments to probe the physiological implications of the observed association. The WLS membrane domain has close structural homology to G protein-coupled receptors (GPCRs). A Wnt hairpin inserts into a conserved hydrophobic cavity in the GPCR-like domain, and the palmitoleate protrudes between two helices into the bilayer. A conformational switch of highly conserved residues on a separate Wnt hairpin might contribute to its transfer to receiving cells. This work provides molecular-level insights into a central mechanism in animal body plan development and stem cell biology.
EMPIAR-10699 (タイトル: Human WLS in complex with WNT8A / Data size: 1.9 TB Data #1: Unaligned multi frame micrographs of WNT8A WLS complex [micrographs - multiframe])
Proteinwntlesshomolog / Integral membrane protein GPR177 / Protein evenness interrupted homolog / EVI / Putative NF-kappa-B- ...Integral membrane protein GPR177 / Protein evenness interrupted homolog / EVI / Putative NF-kappa-B-activating protein 373
名称: Complex of WLS/Evi and WNT8A in nanodisc / タイプ: COMPLEX / 詳細: Nanodisc were formed using MSP1E3D1 and POPG lipid / Entity ID: #1-#2 / 由来: RECOMBINANT
分子量
値: 0.1056 MDa / 実験値: NO
由来(天然)
生物種: Homo sapiens (ヒト)
由来(組換発現)
生物種: Homo sapiens (ヒト) / 株: FreeStyle 293-F Cells
緩衝液
pH: 8
緩衝液成分
ID
濃度
名称
式
Buffer-ID
1
100mM
Tris
1
2
150mM
NaCl
1
試料
濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES
試料支持
グリッドの材料: GOLD / グリッドのタイプ: Quantifoil R0.6/1
急速凍結
装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 277 K