+
データを開く
-
基本情報
| 登録情報 | ![]() | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| タイトル | Cryo-EM structure of active human green cone opsin in complex with chimeric G protein (miniGist) | |||||||||
マップデータ | structure of active human green cone opsin in complex with chimeric G protein (miniGist) | |||||||||
試料 |
| |||||||||
キーワード | G protein-coupled receptor / cone opsin / SIGNALING PROTEIN | |||||||||
| 機能・相同性 | 機能・相同性情報Defective visual phototransduction due to OPN1MW loss of function / The retinoid cycle in cones (daylight vision) / Opsins / absorption of visible light / G protein-coupled photoreceptor activity / cellular response to light stimulus / positive regulation of cytokinesis / photoreceptor activity / phototransduction / photoreceptor outer segment ...Defective visual phototransduction due to OPN1MW loss of function / The retinoid cycle in cones (daylight vision) / Opsins / absorption of visible light / G protein-coupled photoreceptor activity / cellular response to light stimulus / positive regulation of cytokinesis / photoreceptor activity / phototransduction / photoreceptor outer segment / visual perception / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G-protein activation / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through BTK / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / G alpha (z) signalling events / cellular response to catecholamine stimulus / ADP signalling through P2Y purinoceptor 1 / ADORA2B mediated anti-inflammatory cytokines production / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / heterotrimeric G-protein complex / G alpha (12/13) signalling events / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / extracellular vesicle / sensory perception of taste / Thrombin signalling through proteinase activated receptors (PARs) / signaling receptor complex adaptor activity / retina development in camera-type eye / GTPase binding / fibroblast proliferation / Ca2+ pathway / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / G alpha (i) signalling events / G alpha (s) signalling events / phospholipase C-activating G protein-coupled receptor signaling pathway / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / signal transduction / extracellular exosome / membrane / identical protein binding / plasma membrane / cytoplasm / cytosol 類似検索 - 分子機能 | |||||||||
| 生物種 | Homo sapiens (ヒト) / ![]() | |||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.9 Å | |||||||||
データ登録者 | Yao W / Fay JF / Farrens DL | |||||||||
| 資金援助 | 米国, 1件
| |||||||||
引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2025タイトル: Structure of human green cone opsin yields insights into mechanisms underlying the rapid decay of its active, signaling state. 著者: Weekie Yao / Jonathan F Fay / David L Farrens / ![]() 要旨: Cone opsins enable daylight vision and color discrimination. Like their dim-light cousin rhodopsin (Rho) found in rod cells, they use a covalently attached retinal ligand to sense light and initiate ...Cone opsins enable daylight vision and color discrimination. Like their dim-light cousin rhodopsin (Rho) found in rod cells, they use a covalently attached retinal ligand to sense light and initiate visual phototransduction by activating G proteins. Unfortunately, we know less about their structural properties, in part because their activated state is unstable-cone opsins release their retinal agonist within seconds after light activation, ~100× faster than Rho. To determine what causes this rapid release and how it affects G protein activation, we solved the structure of active-state, wild-type human green cone opsin (GCO) stabilized with a mini-G protein and then compared its structural and biophysical properties to Rho. Our results reveal unique features in the active-state GCO structure. These include i) a larger water channel connected to a larger retinal binding cavity, ii) a larger "hole" near the retinal Schiff base that could facilitate both retinal escape and water access; and iii) a potential anionic residue, E102, that lies within ~3.6 Å of the Schiff base. Our biophysical assays show that neutralizing E102 (mutant GCO) slows retinal release (~8×) from the receptor and increases G protein activation. Surprisingly, our kinetic studies suggest that entropic factors are the main cause for the faster retinal release from activated GCO. These unique attributes in GCO likely facilitate its function in bright daylight. These results support the proposal that rapid retinal release from an active-state cone opsin helps prevent signal saturation and enables rapid resetting of the receptor. | |||||||||
| 履歴 |
|
-
構造の表示
| 添付画像 |
|---|
-
ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_72798.map.gz | 77.6 MB | EMDBマップデータ形式 | |
|---|---|---|---|---|
| ヘッダ (付随情報) | emd-72798-v30.xml emd-72798.xml | 23.1 KB 23.1 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_72798_fsc.xml | 13.2 KB | 表示 | FSCデータファイル |
| 画像 | emd_72798.png | 113 KB | ||
| Filedesc metadata | emd-72798.cif.gz | 7.4 KB | ||
| その他 | emd_72798_half_map_1.map.gz emd_72798_half_map_2.map.gz | 84.5 MB 84.5 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-72798 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-72798 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9ydaMC M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
|---|---|
| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
-
リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
|---|---|
| 「今月の分子」の関連する項目 |
-
マップ
| ファイル | ダウンロード / ファイル: emd_72798.map.gz / 形式: CCP4 / 大きさ: 91.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 注釈 | structure of active human green cone opsin in complex with chimeric G protein (miniGist) | ||||||||||||||||||||||||||||||||||||
| 投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||
| ボクセルのサイズ | X=Y=Z: 0.918 Å | ||||||||||||||||||||||||||||||||||||
| 密度 |
| ||||||||||||||||||||||||||||||||||||
| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
|
-添付データ
-ハーフマップ: Half Map B
| ファイル | emd_72798_half_map_1.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 注釈 | Half Map B | ||||||||||||
| 投影像・断面図 |
| ||||||||||||
| 密度ヒストグラム |
-ハーフマップ: Half Map A
| ファイル | emd_72798_half_map_2.map | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 注釈 | Half Map A | ||||||||||||
| 投影像・断面図 |
| ||||||||||||
| 密度ヒストグラム |
-
試料の構成要素
-全体 : Cryo-EM structure of active human green cone opsin in complex wit...
| 全体 | 名称: Cryo-EM structure of active human green cone opsin in complex with chimeric G protein (miniGist) |
|---|---|
| 要素 |
|
-超分子 #1: Cryo-EM structure of active human green cone opsin in complex wit...
| 超分子 | 名称: Cryo-EM structure of active human green cone opsin in complex with chimeric G protein (miniGist) タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1-#5 |
|---|---|
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Medium-wave-sensitive opsin 1
| 分子 | 名称: Medium-wave-sensitive opsin 1 / タイプ: protein_or_peptide / ID: 1 / 詳細: wild-type human green cone opsin with Rho1D4 tail / コピー数: 1 / 光学異性体: LEVO |
|---|---|
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 40.700293 KDa |
| 組換発現 | 生物種: Chlorocebus aethiops (ミドリザル) |
| 配列 | 文字列: MAQQWSLQRL AGRHPQDSYE DSTQSSIFTY TNSNSTRGPF EGPNYHIAPR WVYHLTSVWM IFVVIASVFT NGLVLAATMK FKKLRHPLN WILVNLAVAD LAETVIASTI SVVNQVYGYF VLGHPMCVLE GYTVSLCGIT GLWSLAIISW ERWMVVCKPF G NVRFDAKL ...文字列: MAQQWSLQRL AGRHPQDSYE DSTQSSIFTY TNSNSTRGPF EGPNYHIAPR WVYHLTSVWM IFVVIASVFT NGLVLAATMK FKKLRHPLN WILVNLAVAD LAETVIASTI SVVNQVYGYF VLGHPMCVLE GYTVSLCGIT GLWSLAIISW ERWMVVCKPF G NVRFDAKL AIVGIAFSWI WAAVWTAPPI FGWSRYWPHG LKTSCGPDVF SGSSYPGVQS YMIVLMVTCC ITPLSIIVLC YL QVWLAIR AVAKQQKESE STQKAEKEVT RMVVVMVLAF CFCWGPYAFF ACFAAANPGY PFHPLMAALP AFFAKSATIY NPV IYVFMN RQFRNCILQL FGKKVDDGSE LSSASKTEVT ETSQVAPA UniProtKB: Medium-wave-sensitive opsin 1 |
-分子 #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
| 分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 タイプ: protein_or_peptide / ID: 2 / 詳細: G beta 1 subunit with Rho1D4 tail / コピー数: 1 / 光学異性体: LEVO |
|---|---|
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 38.878375 KDa |
| 組換発現 | 生物種: Chlorocebus aethiops (ミドリザル) |
| 配列 | 文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL ...文字列: MSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKLI IWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC RFLDDNQIVT S SGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD INAICFFPNG NA FATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAGHDNRVSC LGV TDDGMA VATGSWDSFL KIWNGSSGGS SGTETSQVAP A UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-分子 #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
| 分子 | 名称: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
|---|---|
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 7.861143 KDa |
| 組換発現 | 生物種: Chlorocebus aethiops (ミドリザル) |
| 配列 | 文字列: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-分子 #4: scFv16
| 分子 | 名称: scFv16 / タイプ: protein_or_peptide / ID: 4 / コピー数: 1 / 光学異性体: LEVO |
|---|---|
| 由来(天然) | 生物種: ![]() |
| 分子量 | 理論値: 27.784896 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...文字列: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KAAAHHHHHH HH |
-分子 #5: Genome polyprotein,Guanine nucleotide-binding protein G(s) subuni...
| 分子 | 名称: Genome polyprotein,Guanine nucleotide-binding protein G(s) subunit alpha isoforms XLas タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO EC番号: 加水分解酵素; 酸無水物に作用; GTPに作用・細胞または細胞小器官の運動に関与 |
|---|---|
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 57.380715 KDa |
| 組換発現 | 生物種: Chlorocebus aethiops (ミドリザル) |
| 配列 | 文字列: MLQNELALKL AGLDINKTGG SGVSKGEELF TGVVPILVEL DGDVNGHKFS VSGEGEGDAT YGKLTLKFIC TTGKLPVPWP TLVTTFGYG LQCFARYPDH MKQHDFFKSA MPEGYVQERT IFFKDDGNYK TRAEVKFEGD TLVNRIELKG IDFKEDGNIL G HKLEYNYN ...文字列: MLQNELALKL AGLDINKTGG SGVSKGEELF TGVVPILVEL DGDVNGHKFS VSGEGEGDAT YGKLTLKFIC TTGKLPVPWP TLVTTFGYG LQCFARYPDH MKQHDFFKSA MPEGYVQERT IFFKDDGNYK TRAEVKFEGD TLVNRIELKG IDFKEDGNIL G HKLEYNYN SHNVYIMADK QKNGIKVNFK IRHNIEDGSV QLADHYQQNT PIGDGPVLLP DNHYLSYQSA LSKDPNEKRD HM VLLEFVT AAGITLGMDE LYKGSGSGCT LSAEDKAAVE RSKMIEKQLQ KDKQVYRATH RLLLLGADNS GKSTIVKQMR ILH GGSGGS GGTSGIFETK FQVDKVNFHM FDVGGQRDER RKWIQCFNDV TAIIFVVDSS DYNRLQEALN DFKSIWNNRW LRTI SVILF LNKQDLLAEK VLAGKSKIED YFPEFARYTT PEDATPEPGE DPRVTRAKYF IRDEFLRIST ASGDGRHYCY PHFTC AVDT ENARRIFNDV TDIIILEDLK SCGLF |
-分子 #6: RETINAL
| 分子 | 名称: RETINAL / タイプ: ligand / ID: 6 / コピー数: 1 / 式: RET |
|---|---|
| 分子量 | 理論値: 284.436 Da |
| Chemical component information | ![]() ChemComp-RET: |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
|---|---|
解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
-
試料調製
| 濃度 | 3 mg/mL |
|---|---|
| 緩衝液 | pH: 7 / 構成要素 - 濃度: 20.0 mM / 構成要素 - 式: C8H18N2O4S / 構成要素 - 名称: HEPES |
| グリッド | モデル: Quantifoil R1.2/1.3 / 材質: GOLD / メッシュ: 300 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 前処理 - タイプ: GLOW DISCHARGE |
| 凍結 | 凍結剤: ETHANE-PROPANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV |
-
電子顕微鏡法
| 顕微鏡 | TFS GLACIOS |
|---|---|
| 撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 実像数: 4190 / 平均電子線量: 37.2 e/Å2 |
| 電子線 | 加速電圧: 200 kV / 電子線源: FIELD EMISSION GUN |
| 電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.1 µm / 最小 デフォーカス(公称値): 0.2 µm |
+
画像解析
-原子モデル構築 1
| 初期モデル | Chain - Source name: AlphaFold / Chain - Initial model type: in silico model |
|---|---|
| 得られたモデル | ![]() PDB-9yda: |
ムービー
コントローラー
万見について




キーワード
Homo sapiens (ヒト)
データ登録者
米国, 1件
引用





















Z (Sec.)
Y (Row.)
X (Col.)






































FIELD EMISSION GUN
