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基本情報
登録情報 | データベース: PDB / ID: 8kdg | |||||||||||||||||||||||||||
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タイトル | Structure of LAT1-CD98hc-Fab170 in complex with BCH, consensus map | |||||||||||||||||||||||||||
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![]() | TRANSPORT PROTEIN / Transporter / Amino acid / Complex / Cancer | |||||||||||||||||||||||||||
機能・相同性 | ![]() L-tryptophan transmembrane transport / positive regulation of L-leucine import across plasma membrane / L-tryptophan transmembrane transporter activity / cellular response to L-arginine / alanine transport / apical pole of neuron / tyrosine transport / L-histidine transport / amino acid transport complex / L-leucine import across plasma membrane ...L-tryptophan transmembrane transport / positive regulation of L-leucine import across plasma membrane / L-tryptophan transmembrane transporter activity / cellular response to L-arginine / alanine transport / apical pole of neuron / tyrosine transport / L-histidine transport / amino acid transport complex / L-leucine import across plasma membrane / L-alanine transmembrane transporter activity / thyroid hormone transmembrane transporter activity / L-alanine import across plasma membrane / Defective SLC7A7 causes lysinuric protein intolerance (LPI) / aromatic amino acid transmembrane transporter activity / phenylalanine transport / methionine transport / amino acid transmembrane transport / L-leucine transmembrane transporter activity / isoleucine transport / valine transport / amino acid import across plasma membrane / L-amino acid transmembrane transporter activity / proline transport / L-leucine transport / thyroid hormone transport / negative regulation of vascular associated smooth muscle cell apoptotic process / neutral amino acid transport / positive regulation of cytokine production involved in immune response / neutral L-amino acid transmembrane transporter activity / external side of apical plasma membrane / amino acid transmembrane transporter activity / Amino acid transport across the plasma membrane / Tryptophan catabolism / exogenous protein binding / anchoring junction / antiporter activity / Basigin interactions / xenobiotic transport / microvillus membrane / response to muscle activity / amino acid transport / positive regulation of interleukin-17 production / positive regulation of interleukin-4 production / response to exogenous dsRNA / tryptophan transport / response to hyperoxia / transport across blood-brain barrier / cellular response to glucose starvation / positive regulation of glial cell proliferation / negative regulation of autophagy / liver regeneration / basal plasma membrane / peptide antigen binding / positive regulation of type II interferon production / calcium ion transport / melanosome / double-stranded RNA binding / virus receptor activity / cellular response to lipopolysaccharide / basolateral plasma membrane / carbohydrate metabolic process / cadherin binding / apical plasma membrane / protein heterodimerization activity / symbiont entry into host cell / lysosomal membrane / negative regulation of gene expression / intracellular membrane-bounded organelle / synapse / cell surface / protein homodimerization activity / RNA binding / extracellular exosome / nucleoplasm / 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: 3.68 Å | |||||||||||||||||||||||||||
![]() | Lee, Y. | |||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structural basis of anticancer drug recognition and amino acid transport by LAT1. 著者: Yongchan Lee / Chunhuan Jin / Ryuichi Ohgaki / Minhui Xu / Satoshi Ogasawara / Rangana Warshamanage / Keitaro Yamashita / Garib Murshudov / Osamu Nureki / Takeshi Murata / Yoshikatsu Kanai / ![]() ![]() ![]() 要旨: LAT1 (SLC7A5) transports large neutral amino acids and plays pivotal roles in cancer proliferation, immune response and drug delivery. Despite recent advances in structural understanding of LAT1, how ...LAT1 (SLC7A5) transports large neutral amino acids and plays pivotal roles in cancer proliferation, immune response and drug delivery. Despite recent advances in structural understanding of LAT1, how it discriminates substrates and inhibitors including the clinically relevant drugs remains elusive. Here we report six structures of LAT1 across three conformations with bound ligands, elucidating its substrate transport and inhibitory mechanisms. JPH203 (also known as nanvuranlat or KYT-0353), an anticancer drug in clinical trials, traps LAT1 in an outward-facing state with a U-shaped conformer, with its amino-phenylbenzoxazol moiety pushing against transmembrane helix 3 (TM3) and bending TM10. Physiological substrates like ʟ-Phe lack such effects, whereas melphalan poses steric hindrance, explaining its inhibitory activity. The "classical" system L inhibitor BCH induces an occluded state critical for transport, confirming its substrate-like behavior. These findings provide a structural basis for substrate recognition and inhibition of LAT1, guiding future drug design. | |||||||||||||||||||||||||||
履歴 |
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構造の表示
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 | ![]() | 288.5 KB | 表示 | ![]() |
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PDB形式 | ![]() | 223.9 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
関連構造データ | ![]() 37135MC ![]() 8kddC ![]() 8kdfC ![]() 8kdhC ![]() 8kdiC ![]() 8kdjC ![]() 8kdnC ![]() 8kdoC ![]() 8kdpC 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 | 類似検索 - 機能・相同性 ![]() |
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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
-タンパク質 , 2種, 2分子 AB
#1: タンパク質 | 分子量: 68069.625 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
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#2: タンパク質 | 分子量: 56043.746 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-抗体 , 2種, 2分子 LH
#3: 抗体 | 分子量: 24355.986 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
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#4: 抗体 | 分子量: 24981.906 Da / 分子数: 1 / 由来タイプ: 天然 / 由来: (天然) ![]() ![]() |
-糖 / 非ポリマー , 2種, 5分子 
#5: 糖 | ChemComp-NAG / #6: 化合物 | ChemComp-VU0 / ( | 分子量: 155.194 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C8H13NO2 / タイプ: SUBJECT OF INVESTIGATION |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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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 |
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分子量 | 値: 0.173 MDa / 実験値: NO | ||||||||||||||||||||||||
由来(天然) |
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由来(組換発現) | 生物種: ![]() | ||||||||||||||||||||||||
緩衝液 | pH: 8 | ||||||||||||||||||||||||
試料 | 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
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: TFS KRIOS |
電子銃 | 電子線源: ![]() |
電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 800 nm |
撮影 | 電子線照射量: 51 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
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解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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3次元再構成 | 解像度: 3.68 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 170853 / 対称性のタイプ: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化 | 解像度: 3.68→3.68 Å / Cor.coef. Fo:Fc: 0.945 / SU B: 12.132 / SU ML: 0.173 / ESU R: 0.48 立体化学のターゲット値: MAXIMUM LIKELIHOOD WITH PHASES 詳細: HYDROGENS HAVE BEEN USED IF PRESENT IN THE INPUT
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溶媒の処理 | 溶媒モデル: PARAMETERS FOR MASK CACLULATION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 213.527 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
精密化ステップ | サイクル: 1 / 合計: 10601 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
拘束条件 |
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