+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 5ye5 | ||||||
---|---|---|---|---|---|---|---|
タイトル | structure of endo-lysosomal TRPML1 channel inserting into nanodisc | ||||||
要素 | mammalian endo-lysosomal TRPML1 channel | ||||||
キーワード | MEMBRANE PROTEIN / mTRPML1 / mucolipidosis type IV / structual comparisons / combined regulation mechanism | ||||||
機能・相同性 | 機能・相同性情報 Transferrin endocytosis and recycling / calcium ion export / positive regulation of lysosome organization / intracellularly phosphatidylinositol-3,5-bisphosphate-gated monatomic cation channel activity / phagosome maturation / NAADP-sensitive calcium-release channel activity / iron ion transmembrane transporter activity / iron ion transmembrane transport / cellular response to pH / monoatomic anion channel activity ...Transferrin endocytosis and recycling / calcium ion export / positive regulation of lysosome organization / intracellularly phosphatidylinositol-3,5-bisphosphate-gated monatomic cation channel activity / phagosome maturation / NAADP-sensitive calcium-release channel activity / iron ion transmembrane transporter activity / iron ion transmembrane transport / cellular response to pH / monoatomic anion channel activity / TRP channels / sodium channel activity / endosomal transport / intracellular vesicle / monoatomic cation transmembrane transport / phagocytic cup / potassium channel activity / autophagosome maturation / monoatomic cation channel activity / release of sequestered calcium ion into cytosol / cellular response to calcium ion / cell projection / calcium channel activity / phagocytic vesicle membrane / late endosome / late endosome membrane / protein homotetramerization / adaptive immune response / lysosome / receptor complex / lysosomal membrane / lipid binding / Golgi apparatus / nucleoplasm / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能 | ||||||
生物種 | Mus musculus (ハツカネズミ) | ||||||
手法 | 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 5.8 Å | ||||||
データ登録者 | Yang, M. / Gao, N. | ||||||
引用 | ジャーナル: Protein Cell / 年: 2017 タイトル: Cryo-EM structures of the mammalian endo-lysosomal TRPML1 channel elucidate the combined regulation mechanism. 著者: Sensen Zhang / Ningning Li / Wenwen Zeng / Ning Gao / Maojun Yang / 要旨: TRPML1 channel is a non-selective group-2 transient receptor potential (TRP) channel with Ca permeability. Located mainly in late endosome and lysosome of all mammalian cell types, TRPML1 is ...TRPML1 channel is a non-selective group-2 transient receptor potential (TRP) channel with Ca permeability. Located mainly in late endosome and lysosome of all mammalian cell types, TRPML1 is indispensable in the processes of endocytosis, membrane trafficking, and lysosome biogenesis. Mutations of TRPML1 cause a severe lysosomal storage disorder called mucolipidosis type IV (MLIV). In the present study, we determined the cryo-electron microscopy (cryo-EM) structures of Mus musculus TRPML1 (mTRPML1) in lipid nanodiscs and Amphipols. Two distinct states of mTRPML1 in Amphipols are added to the closed state, on which could represent two different confirmations upon activation and regulation. The polycystin-mucolipin domain (PMD) may sense the luminal/extracellular stimuli and undergo a "move upward" motion during endocytosis, thus triggering the overall conformational change in TRPML1. Based on the structural comparisons, we propose TRPML1 is regulated by pH, Ca, and phosphoinositides in a combined manner so as to accommodate the dynamic endocytosis process. | ||||||
履歴 |
|
-構造の表示
ムービー |
ムービービューア |
---|---|
構造ビューア | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 5ye5.cif.gz | 251.5 KB | 表示 | PDBx/mmCIF形式 |
---|---|---|---|---|
PDB形式 | pdb5ye5.ent.gz | 164.8 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 5ye5.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
文書・要旨 | 5ye5_validation.pdf.gz | 907.8 KB | 表示 | wwPDB検証レポート |
---|---|---|---|---|
文書・詳細版 | 5ye5_full_validation.pdf.gz | 935.7 KB | 表示 | |
XML形式データ | 5ye5_validation.xml.gz | 46.8 KB | 表示 | |
CIF形式データ | 5ye5_validation.cif.gz | 74.8 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/ye/5ye5 ftp://data.pdbj.org/pub/pdb/validation_reports/ye/5ye5 | HTTPS FTP |
-関連構造データ
-リンク
-集合体
登録構造単位 |
|
---|---|
1 |
|
-要素
#1: タンパク質 | 分子量: 65573.617 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Mus musculus (ハツカネズミ) / 遺伝子: Mcoln1 / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q99J21 #2: 糖 | ChemComp-NAG / |
---|
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: mammalian endo-lysosomal TRPML1 channel / タイプ: ORGANELLE OR CELLULAR COMPONENT / Entity ID: #1 / 由来: RECOMBINANT |
---|---|
由来(天然) | 生物種: Mus musculus (ハツカネズミ) |
由来(組換発現) | 生物種: Homo sapiens (ヒト) |
緩衝液 | pH: 7.4 |
試料 | 包埋: YES / シャドウイング: NO / 染色: NO / 凍結: YES |
EM embedding | Material: Amorphous ice |
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
---|---|
顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) |
-解析
EMソフトウェア | 名称: RELION / バージョン: 2 / カテゴリ: 3次元再構成 |
---|---|
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3次元再構成 | 解像度: 5.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 167000 / 対称性のタイプ: POINT |