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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 7n98 | ||||||
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タイトル | Cryo-EM structure of MFSD2A | ||||||
![]() | Sodium-dependent lysophosphatidylcholine symporter 1 | ||||||
![]() | TRANSPORT PROTEIN / membrane protein | ||||||
機能・相同性 | ![]() lysophosphatidylcholine flippase activity / regulation of phosphatidylethanolamine metabolic process / regulation of phosphatidylserine metabolic process / oleate transmembrane transporter activity / Synthesis of PC / regulation of phosphatidylcholine metabolic process / regulation of neuron projection arborization / retina morphogenesis in camera-type eye / photoreceptor cell morphogenesis / lysophospholipid translocation ...lysophosphatidylcholine flippase activity / regulation of phosphatidylethanolamine metabolic process / regulation of phosphatidylserine metabolic process / oleate transmembrane transporter activity / Synthesis of PC / regulation of phosphatidylcholine metabolic process / regulation of neuron projection arborization / retina morphogenesis in camera-type eye / photoreceptor cell morphogenesis / lysophospholipid translocation / fatty acid transmembrane transporter activity / lysophospholipid:sodium symporter activity / lysophospholipid transport / photoreceptor cell outer segment organization / lipid transport across blood-brain barrier / very-low-density lipoprotein particle assembly / regulation of dendrite development / negative regulation of fatty acid beta-oxidation / retinal pigment epithelium development / positive regulation of triglyceride biosynthetic process / establishment of blood-brain barrier / symporter activity / transcytosis / long-chain fatty acid transmembrane transporter activity / motor behavior / maintenance of blood-brain barrier / carbohydrate transport / regulation of multicellular organism growth / long-chain fatty acid transport / fatty acid transport / energy homeostasis / hippocampus development / cellular response to starvation / brain development / cognition / cytoplasmic ribonucleoprotein granule / positive regulation of cell growth / endoplasmic reticulum membrane / plasma membrane / cytosol 類似検索 - 分子機能 | ||||||
生物種 | ![]() ![]() | ||||||
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: 3.5 Å | ||||||
![]() | Zhang, J. / Feng, L. | ||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure and mechanism of blood-brain-barrier lipid transporter MFSD2A. 著者: Chase A P Wood / Jinru Zhang / Deniz Aydin / Yan Xu / Benjamin J Andreone / Urs H Langen / Ron O Dror / Chenghua Gu / Liang Feng / ![]() 要旨: MFSD2A is a sodium-dependent lysophosphatidylcholine symporter that is responsible for the uptake of docosahexaenoic acid into the brain, which is crucial for the development and performance of the ...MFSD2A is a sodium-dependent lysophosphatidylcholine symporter that is responsible for the uptake of docosahexaenoic acid into the brain, which is crucial for the development and performance of the brain. Mutations that affect MFSD2A cause microcephaly syndromes. The ability of MFSD2A to transport lipid is also a key mechanism that underlies its function as an inhibitor of transcytosis to regulate the blood-brain barrier. Thus, MFSD2A represents an attractive target for modulating the permeability of the blood-brain barrier for drug delivery. Here we report the cryo-electron microscopy structure of mouse MFSD2A. Our structure defines the architecture of this important transporter, reveals its unique extracellular domain and uncovers its substrate-binding cavity. The structure-together with our functional studies and molecular dynamics simulations-identifies a conserved sodium-binding site, reveals a potential lipid entry pathway and helps to rationalize MFSD2A mutations that underlie microcephaly syndromes. These results shed light on the critical lipid transport function of MFSD2A and provide a framework to aid in the design of specific modulators for therapeutic purposes. | ||||||
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構造の表示
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構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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PDBx/mmCIF形式 | ![]() | 94.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 68.8 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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1 |
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要素
#1: タンパク質 | 分子量: 59038.602 Da / 分子数: 1 / 変異: Q67H / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() |
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Has protein modification | Y |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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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 |
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試料調製
構成要素 | 名称: membrane protein complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 単位: KILODALTONS/NANOMETER / 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() |
緩衝液 | pH: 7.5 |
試料 | 濃度: 5 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 / グリッドのサイズ: 300 divisions/in. / グリッドのタイプ: Quantifoil R2/1 |
急速凍結 | 装置: LEICA EM GP / 凍結剤: ETHANE / 湿度: 96 % / 凍結前の試料温度: 293 K |
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電子顕微鏡撮影
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: ![]() |
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 K3 (6k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: NONE | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 90577 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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