+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 8vsj | ||||||
---|---|---|---|---|---|---|---|
タイトル | Engineered peptide-specific binder in complex with HLA-DR1/CLIP | ||||||
![]() |
| ||||||
![]() | IMMUNE SYSTEM / complex / engineered protein | ||||||
機能・相同性 | ![]() negative regulation of peptide secretion / macrophage migration inhibitory factor signaling pathway / NOS2-CD74 complex / MHC class II protein binding, via antigen binding groove / antigen processing and presentation of endogenous antigen / positive regulation of dendritic cell antigen processing and presentation / negative regulation of T cell differentiation / macrophage migration inhibitory factor binding / positive regulation of macrophage migration inhibitory factor signaling pathway / protein trimerization ...negative regulation of peptide secretion / macrophage migration inhibitory factor signaling pathway / NOS2-CD74 complex / MHC class II protein binding, via antigen binding groove / antigen processing and presentation of endogenous antigen / positive regulation of dendritic cell antigen processing and presentation / negative regulation of T cell differentiation / macrophage migration inhibitory factor binding / positive regulation of macrophage migration inhibitory factor signaling pathway / protein trimerization / macrophage migration inhibitory factor receptor complex / positive regulation of cytokine-mediated signaling pathway / myeloid dendritic cell antigen processing and presentation / antigen processing and presentation of endogenous peptide antigen via MHC class II / T cell activation involved in immune response / autolysosome membrane / positive regulation of prostaglandin biosynthetic process / regulation of T-helper cell differentiation / T cell selection / positive regulation of type 2 immune response / positive regulation of CD4-positive, CD25-positive, alpha-beta regulatory T cell differentiation / host-mediated suppression of symbiont invasion / MHC class II receptor activity / negative thymic T cell selection / positive regulation of CD4-positive, alpha-beta T cell activation / MHC class II protein binding / antigen processing and presentation of peptide or polysaccharide antigen via MHC class II / negative regulation of mature B cell apoptotic process / positive regulation of kinase activity / positive regulation of memory T cell differentiation / CD4 receptor binding / positive regulation of monocyte differentiation / positive thymic T cell selection / vacuole / cytokine receptor activity / positive regulation of chemokine (C-X-C motif) ligand 2 production / positive regulation of neutrophil chemotaxis / prostaglandin biosynthetic process / positive regulation of macrophage cytokine production / positive regulation of T cell differentiation / regulation of macrophage activation / transport vesicle membrane / negative regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / nitric-oxide synthase binding / antigen processing and presentation / Translocation of ZAP-70 to Immunological synapse / Phosphorylation of CD3 and TCR zeta chains / cytokine binding / negative regulation of DNA damage response, signal transduction by p53 class mediator / polysaccharide binding / immunoglobulin mediated immune response / : / Generation of second messenger molecules / immunological synapse / Co-inhibition by PD-1 / response to type II interferon / T cell receptor binding / positive regulation of chemokine production / positive regulation of B cell proliferation / multivesicular body / protein folding chaperone / MHC class II antigen presentation / lysosomal lumen / negative regulation of cell migration / trans-Golgi network membrane / positive regulation of interleukin-8 production / lumenal side of endoplasmic reticulum membrane / Cell surface interactions at the vascular wall / intracellular protein transport / peptide antigen assembly with MHC class II protein complex / MHC class II protein complex / clathrin-coated endocytic vesicle membrane / ER to Golgi transport vesicle membrane / antigen processing and presentation of exogenous peptide antigen via MHC class II / positive regulation of immune response / peptide antigen binding / positive regulation of T cell mediated cytotoxicity / positive regulation of interleukin-6 production / positive regulation of T cell activation / cognition / positive regulation of fibroblast proliferation / Interferon gamma signaling / MHC class II protein complex binding / endocytic vesicle membrane / late endosome membrane / late endosome / Downstream TCR signaling / positive regulation of protein phosphorylation / amyloid-beta binding / protein-containing complex assembly / early endosome membrane / adaptive immune response / positive regulation of canonical NF-kappaB signal transduction / positive regulation of viral entry into host cell / lysosome / positive regulation of ERK1 and ERK2 cascade / positive regulation of MAPK cascade / endosome membrane / protein stabilization / immune response 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: 2.28 Å | ||||||
![]() | Jude, K.M. / Yang, X. / Du, H. / Kassardjian, A. / Julien, J.-P. / Huang, P. / Garcia, K.C. | ||||||
資金援助 | ![]()
| ||||||
![]() | ![]() タイトル: A general system for targeting MHC class II-antigen complex via a single adaptable loop. 著者: Haotian Du / Jingjia Liu / Kevin M Jude / Xinbo Yang / Ying Li / Braxton Bell / Hongli Yang / Audrey Kassardjian / Wyatt Blackson / Ali Mobedi / Udit Parekh / R Andres Parra Sperberg / Jean- ...著者: Haotian Du / Jingjia Liu / Kevin M Jude / Xinbo Yang / Ying Li / Braxton Bell / Hongli Yang / Audrey Kassardjian / Wyatt Blackson / Ali Mobedi / Udit Parekh / R Andres Parra Sperberg / Jean-Philippe Julien / Elizabeth D Mellins / K Christopher Garcia / Po-Ssu Huang / ![]() ![]() 要旨: Major histocompatibility complex class II (MHCII) bound to a peptide antigen mediates interactions between CD4 T cells and antigen-presenting cells. Targeting peptide-MHCII with T cell antigen ...Major histocompatibility complex class II (MHCII) bound to a peptide antigen mediates interactions between CD4 T cells and antigen-presenting cells. Targeting peptide-MHCII with T cell antigen receptors (TCRs) and TCR-like antibodies has shown promise for autoimmune diseases and microbiome tolerance. To develop a general targeting approach, we introduce targeted recognition of antigen-MHC complex reporter for MHCII (TRACeR-II) for the rapid development of peptide-specific MHCII binders. TRACeR-II binders have a small helical bundle scaffold and use a single loop to recognize peptide-MHCII, which offers versatility and enables structural modeling of the interactions to target MHCII antigens. We demonstrate rapid generation of TRACeR-II binders to multiple molecules with affinities in the low-nanomolar to low-micromolar range, comparable to best-in-class TCRs and antibodies. Through computational protein design, we created specific binding sequences in silico from only the sequence of a severe acute respiratory syndrome coronavirus 2 peptide. TRACeR-II provides a straightforward approach to target antigen-MHCII without relying on combinatorial selection on complementarity-determining region loops. | ||||||
履歴 |
|
-
構造の表示
構造ビューア | 分子: ![]() ![]() |
---|
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 199.3 KB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 123.3 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 | ![]() | 1.2 MB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 1.2 MB | 表示 | |
XML形式データ | ![]() | 38.5 KB | 表示 | |
CIF形式データ | ![]() | 55.1 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 | ![]() 43499MC 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 ( |
---|---|
類似構造データ | 類似検索 - 機能・相同性 ![]() |
実験データセット #1 | データ参照: ![]() |
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
-HLA class II histocompatibility ... , 2種, 2分子 AB
#1: タンパク質 | 分子量: 21400.178 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
---|---|
#2: タンパク質 | 分子量: 22324.938 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 HL
#4: 抗体 | 分子量: 23668.643 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
---|---|
#5: 抗体 | 分子量: 23505.068 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
-タンパク質 / タンパク質・ペプチド / 糖 , 3種, 5分子 CP

#3: タンパク質 | 分子量: 15544.818 Da / 分子数: 1 Mutation: V30C, Q37S, K38I, H39Y, F40L, V41A, Y59D, L72K, L75E, G86D, V88I, D90K, N92G, G93D, delta 94-97, I100V, T110I, I127T, S144C 由来タイプ: 組換発現 由来: (組換発現) ![]() 発現宿主: ![]() ![]() |
---|---|
#6: タンパク質・ペプチド | 分子量: 1676.118 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() |
#7: 糖 |
-詳細
研究の焦点であるリガンドがあるか | N |
---|---|
Has protein modification | Y |
-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: Engineered peptide-specific binder in complex with HLA-DR1/CLIP タイプ: COMPLEX / Entity ID: #1-#6 / 由来: RECOMBINANT | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
分子量 | 実験値: NO | ||||||||||||||||||||
由来(天然) | 生物種: ![]() | ||||||||||||||||||||
由来(組換発現) | 生物種: ![]() | ||||||||||||||||||||
緩衝液 | pH: 7.3 | ||||||||||||||||||||
緩衝液成分 |
| ||||||||||||||||||||
試料 | 濃度: 2 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 R1.2/1.3 | ||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 4 K |
-
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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 165000 X / 最大 デフォーカス(公称値): 1800 nm / 最小 デフォーカス(公称値): 800 nm / Cs: 2.7 mm / C2レンズ絞り径: 50 µm / アライメント法: COMA FREE |
試料ホルダ | 凍結剤: NITROGEN 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
撮影 | 電子線照射量: 60 e/Å2 フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 撮影したグリッド数: 1 / 実像数: 21332 / 詳細: eer images |
-
解析
EMソフトウェア | 名称: PHENIX / バージョン: 1.21_5207 / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 18639350 / 詳細: template based picks | ||||||||||||||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||||||||||||||
3次元再構成 | 解像度: 2.28 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 3706646 / クラス平均像の数: 1 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
精密化 | 交差検証法: NONE 立体化学のターゲット値: GeoStd + Monomer Library + CDL v1.2 | ||||||||||||||||||||||||
原子変位パラメータ | Biso mean: 77.98 Å2 | ||||||||||||||||||||||||
拘束条件 |
|