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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: 8u2c | ||||||
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| タイトル | Gaussian mixture model based single particle refinement - ABC transporter (inhibitor-bound ABCG2 from EMPIAR-10374) | ||||||
要素 |
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キーワード | MEMBRANE PROTEIN / ABC transporter | ||||||
| 機能・相同性 | 機能・相同性情報biotin transmembrane transporter activity / biotin transport / riboflavin transport / riboflavin transmembrane transporter activity / sphingolipid intramembrane carrier activity / renal urate salt excretion / Abacavir transmembrane transport / urate metabolic process / sphingolipid biosynthetic process / Sphingolipid de novo biosynthesis ...biotin transmembrane transporter activity / biotin transport / riboflavin transport / riboflavin transmembrane transporter activity / sphingolipid intramembrane carrier activity / renal urate salt excretion / Abacavir transmembrane transport / urate metabolic process / sphingolipid biosynthetic process / Sphingolipid de novo biosynthesis / urate transmembrane transporter activity / external side of apical plasma membrane / xenobiotic transport across blood-brain barrier / organic anion transport / : / Ciprofloxacin ADME / export across plasma membrane / Paracetamol ADME / NFE2L2 regulating MDR associated enzymes / transepithelial transport / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / ABC-type xenobiotic transporter / Heme biosynthesis / cellular detoxification / Heme degradation / ABC-type xenobiotic transporter activity / ATPase-coupled transmembrane transporter activity / efflux transmembrane transporter activity / xenobiotic transmembrane transporter activity / transport across blood-brain barrier / brush border membrane / Iron uptake and transport / transmembrane transport / mitochondrial membrane / apical plasma membrane / membrane raft / protein homodimerization activity / ATP hydrolysis activity / nucleoplasm / ATP binding / identical protein binding / plasma membrane 類似検索 - 分子機能 | ||||||
| 生物種 | Homo sapiens (ヒト)![]() | ||||||
| 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: 2.5 Å | ||||||
データ登録者 | Chen, M. / Pintilie, G. | ||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: Nat Methods / 年: 2024タイトル: Improving resolution and resolvability of single-particle cryoEM structures using Gaussian mixture models. 著者: Muyuan Chen / Michael F Schmid / Wah Chiu / ![]() 要旨: Cryogenic electron microscopy is widely used in structural biology, but its resolution is often limited by the dynamics of the macromolecule. Here we developed a refinement protocol based on Gaussian ...Cryogenic electron microscopy is widely used in structural biology, but its resolution is often limited by the dynamics of the macromolecule. Here we developed a refinement protocol based on Gaussian mixture models that integrates particle orientation and conformation estimation and improves the alignment for flexible domains of protein structures. We demonstrated this protocol on multiple datasets, resulting in improved resolution and resolvability, locally and globally, by visual and quantitative measures. | ||||||
| 履歴 |
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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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 | 8u2c.cif.gz | 352.8 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8u2c.ent.gz | 277.9 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8u2c.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
| アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/u2/8u2c ftp://data.pdbj.org/pub/pdb/validation_reports/u2/8u2c | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 41845MC ![]() 8u26C ![]() 8u28C 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 F&H 検索 |
| 実験データセット #1 | データ参照: 10.6019/EMPIAR-10374 / データの種類: EMPIAR |
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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: 72385.852 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: ABCG2, ABCP, BCRP, BCRP1, MXR / 発現宿主: Homo sapiens (ヒト) / 参照: UniProt: Q9UNQ0, ABC-type xenobiotic transporter#2: 抗体 | 分子量: 23594.016 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: 抗体 | 分子量: 23843.633 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: 抗体 | 分子量: 22986.840 Da / 分子数: 2 / 由来タイプ: 組換発現 詳細: The Fab domains were not resolved in the original structure and, therefore, were not modeled. With the implementation of an improved method, we can now resolve the domains within the CryoEM ...詳細: The Fab domains were not resolved in the original structure and, therefore, were not modeled. With the implementation of an improved method, we can now resolve the domains within the CryoEM density map. However, given the absence of FAB information in the original structure, we opted to fit a representative FAB structure, utilizing PDB ID 7FAB as a reference. 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト)#5: 抗体 | 分子量: 22866.355 Da / 分子数: 2 / 由来タイプ: 組換発現 詳細: The Fab domains were not resolved in the original structure and, therefore, were not modeled. With the implementation of an improved method, we can now resolve the domains within the CryoEM ...詳細: The Fab domains were not resolved in the original structure and, therefore, were not modeled. With the implementation of an improved method, we can now resolve the domains within the CryoEM density map. However, given the absence of FAB information in the original structure, we opted to fit a representative FAB structure, utilizing PDB ID 7FAB as a reference. 由来: (組換発現) Homo sapiens (ヒト) / 発現宿主: Homo sapiens (ヒト)Has protein modification | Y | |
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-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: inhibitor-bound ABCG2 / タイプ: COMPLEX / 詳細: Re-refinement from EMPIAR-10374 / Entity ID: all / 由来: RECOMBINANT |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Homo sapiens (ヒト) |
| 緩衝液 | pH: 7.5 |
| 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: 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 / 最大 デフォーカス(公称値): 2000 nm / 最小 デフォーカス(公称値): 1000 nm |
| 撮影 | 電子線照射量: 30 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
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解析
| EMソフトウェア |
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| CTF補正 | タイプ: PHASE FLIPPING ONLY | |||||||||||||||||||||
| 対称性 | 点対称性: C2 (2回回転対称) | |||||||||||||||||||||
| 3次元再構成 | 解像度: 2.5 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 284831 / 対称性のタイプ: POINT | |||||||||||||||||||||
| 原子モデル構築 |
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万見について




Homo sapiens (ヒト)

米国, 1件
引用






PDBj







FIELD EMISSION GUN
