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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: 7mjs | ||||||||||||||||||||||||
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タイトル | Single-Particle Cryo-EM Structure of Major Facilitator Superfamily Domain containing 2A in complex with LPC-18:3 | ||||||||||||||||||||||||
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![]() | LIPID TRANSPORT/IMMUNE SYSTEM / MFS transporters / lysolipids / blood-brain barrier / omega-3 fatty acids / LIPID TRANSPORT-IMMUNE SYSTEM complex | ||||||||||||||||||||||||
機能・相同性 | ![]() Synthesis of PC / lysophosphatidylcholine flippase activity / regulation of phosphatidylethanolamine metabolic process / regulation of phosphatidylserine metabolic process / oleate transmembrane transporter activity / regulation of phosphatidylcholine metabolic process / regulation of neuron projection arborization / retina morphogenesis in camera-type eye / photoreceptor cell morphogenesis / lysophospholipid translocation ...Synthesis of PC / lysophosphatidylcholine flippase activity / regulation of phosphatidylethanolamine metabolic process / regulation of phosphatidylserine metabolic process / oleate transmembrane transporter activity / regulation of phosphatidylcholine metabolic process / regulation of neuron projection arborization / retina morphogenesis in camera-type eye / photoreceptor cell morphogenesis / lysophospholipid translocation / lysophospholipid:sodium symporter activity / photoreceptor cell outer segment organization / lipid transport across blood-brain barrier / very-low-density lipoprotein particle assembly / negative regulation of fatty acid beta-oxidation / regulation of dendrite development / retinal pigment epithelium development / positive regulation of triglyceride biosynthetic process / : / establishment of blood-brain barrier / transcytosis / motor behavior / maintenance of blood-brain barrier / plasma membrane => GO:0005886 / carbohydrate transport / regulation of multicellular organism growth / energy homeostasis / cellular response to starvation / hippocampus development / cognition / positive regulation of cell growth 類似検索 - 分子機能 | ||||||||||||||||||||||||
生物種 | Synthetic construct (人工物)![]() ![]() | ||||||||||||||||||||||||
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: 3.03 Å | ||||||||||||||||||||||||
![]() | Cater, R.J. / Chua, G.L. / Erramilli, S.K. / Keener, J.E. / Choy, B.C. / Tokarz, P. / Chin, C.F. / Quek, D.Q.Y. / Kloss, B. / Pepe, J.G. ...Cater, R.J. / Chua, G.L. / Erramilli, S.K. / Keener, J.E. / Choy, B.C. / Tokarz, P. / Chin, C.F. / Quek, D.Q.Y. / Kloss, B. / Pepe, J.G. / Parisi, G. / Wong, B.H. / Clarke, O.B. / Marty, M.T. / Kossiakoff, A.A. / Khelashvili, G. / Silver, D.L. / Mancia, F. | ||||||||||||||||||||||||
資金援助 | ![]() ![]()
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![]() | ![]() タイトル: Structural basis of omega-3 fatty acid transport across the blood-brain barrier. 著者: Rosemary J Cater / Geok Lin Chua / Satchal K Erramilli / James E Keener / Brendon C Choy / Piotr Tokarz / Cheen Fei Chin / Debra Q Y Quek / Brian Kloss / Joseph G Pepe / Giacomo Parisi / ...著者: Rosemary J Cater / Geok Lin Chua / Satchal K Erramilli / James E Keener / Brendon C Choy / Piotr Tokarz / Cheen Fei Chin / Debra Q Y Quek / Brian Kloss / Joseph G Pepe / Giacomo Parisi / Bernice H Wong / Oliver B Clarke / Michael T Marty / Anthony A Kossiakoff / George Khelashvili / David L Silver / Filippo Mancia / ![]() ![]() 要旨: Docosahexaenoic acid is an omega-3 fatty acid that is essential for neurological development and function, and it is supplied to the brain and eyes predominantly from dietary sources. This nutrient ...Docosahexaenoic acid is an omega-3 fatty acid that is essential for neurological development and function, and it is supplied to the brain and eyes predominantly from dietary sources. This nutrient is transported across the blood-brain and blood-retina barriers in the form of lysophosphatidylcholine by major facilitator superfamily domain containing 2A (MFSD2A) in a Na-dependent manner. Here we present the structure of MFSD2A determined using single-particle cryo-electron microscopy, which reveals twelve transmembrane helices that are separated into two pseudosymmetric domains. The transporter is in an inward-facing conformation and features a large amphipathic cavity that contains the Na-binding site and a bound lysolipid substrate, which we confirmed using native mass spectrometry. Together with our functional analyses and molecular dynamics simulations, this structure reveals details of how MFSD2A interacts with substrates and how Na-dependent conformational changes allow for the release of these substrates into the membrane through a lateral gate. Our work provides insights into the molecular mechanism by which this atypical major facility superfamily transporter mediates the uptake of lysolipids into the brain, and has the potential to aid in the delivery of neurotherapeutic agents. | ||||||||||||||||||||||||
履歴 |
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構造の表示
ムービー |
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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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ダウンロード
PDBx/mmCIF形式 | ![]() | 135.1 KB | 表示 | ![]() |
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PDB形式 | ![]() | 107.2 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.4 MB | 表示 | ![]() |
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文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 40.1 KB | 表示 | |
CIF形式データ | ![]() | 57.7 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 23883MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | |
電子顕微鏡画像生データ | ![]() Data size: 3.9 TB Data #1: MFSD2A_GG_compled with 2AG3 Fab and LPC-18:3 [micrographs - multiframe]) |
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: 抗体 | 分子量: 25646.537 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Synthetic construct (人工物) / 発現宿主: ![]() ![]() | ||
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#2: 抗体 | 分子量: 23655.182 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Synthetic construct (人工物) / 発現宿主: ![]() ![]() | ||
#3: タンパク質 | 分子量: 60789.168 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() 参照: UniProt: F1NCD6 | ||
#4: 化合物 | ChemComp-ZGS / [( | ||
#5: 糖 | 研究の焦点であるリガンドがあるか | 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: Single-Particle Cryo-EM Structure of Major Facilitator Superfamily Domain containing 2A (MFSD2A) Gallus gallus in complex with LPC-18:3 タイプ: COMPLEX / Entity ID: #1-#3 / 由来: MULTIPLE SOURCES |
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分子量 | 単位: MEGADALTONS / 実験値: NO |
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() ![]() 株: SF9 |
緩衝液 | pH: 7 |
試料 | 濃度: 1 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
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電子顕微鏡撮影
顕微鏡 | モデル: FEI TITAN |
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電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 平均露光時間: 3 sec. / 電子線照射量: 58 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
画像スキャン | サンプリングサイズ: 5 µm / 横: 5760 / 縦: 4092 |
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解析
CTF補正 | 詳細: Patch CTF / タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 3.03 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 175738 / 対称性のタイプ: POINT |