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データを開く
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基本情報
| 登録情報 | ![]() | ||||||||||||||||||
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| タイトル | Cryo-EM structure of the unliganded human melanocortin receptor 1 (MC1R)-Gs complex | ||||||||||||||||||
マップデータ | |||||||||||||||||||
試料 |
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キーワード | human melanocortin receptor 1 / G protein-coupled receptor / unliganded constitutive activity / MEMBRANE PROTEIN | ||||||||||||||||||
| 機能・相同性 | 機能・相同性情報corticotropin receptor activity / melanocyte-stimulating hormone receptor activity / melanocortin receptor activity / positive regulation of feeding behavior / positive regulation of melanin biosynthetic process / melanin biosynthetic process / UV protection / G protein-coupled peptide receptor activity / Activation of G protein gated Potassium channels / G-protein activation ...corticotropin receptor activity / melanocyte-stimulating hormone receptor activity / melanocortin receptor activity / positive regulation of feeding behavior / positive regulation of melanin biosynthetic process / melanin biosynthetic process / UV protection / G protein-coupled peptide receptor activity / Activation of G protein gated Potassium channels / G-protein activation / G beta:gamma signalling through PI3Kgamma / Prostacyclin signalling through prostacyclin receptor / G beta:gamma signalling through PLC beta / ADP signalling through P2Y purinoceptor 1 / Thromboxane signalling through TP receptor / Presynaptic function of Kainate receptors / G beta:gamma signalling through CDC42 / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / G alpha (12/13) signalling events / Glucagon-type ligand receptors / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Adrenaline,noradrenaline inhibits insulin secretion / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / UV-damage excision repair / Ca2+ pathway / G alpha (z) signalling events / Thrombin signalling through proteinase activated receptors (PARs) / Extra-nuclear estrogen signaling / G alpha (s) signalling events / G alpha (q) signalling events / G alpha (i) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / High laminar flow shear stress activates signaling by PIEZO1 and PECAM1:CDH5:KDR in endothelial cells / Vasopressin regulates renal water homeostasis via Aquaporins / pigmentation / hormone binding / adenylate cyclase-activating G protein-coupled bile acid receptor signaling pathway / adenylate cyclase-activating serotonin receptor signaling pathway / positive regulation of cAMP/PKA signal transduction / regulation of skeletal muscle contraction / PKA activation in glucagon signalling / negative regulation of tumor necrosis factor production / hair follicle placode formation / developmental growth / intracellular transport / G protein-coupled receptor signaling pathway, coupled to cyclic nucleotide second messenger / D1 dopamine receptor binding / vascular endothelial cell response to laminar fluid shear stress / renal water homeostasis / activation of adenylate cyclase activity / Hedgehog 'off' state / cellular response to acidic pH / adenylate cyclase-activating adrenergic receptor signaling pathway / adenylate cyclase inhibitor activity / positive regulation of protein localization to cell cortex / T cell migration / positive regulation of relaxation of smooth muscle / Adenylate cyclase inhibitory pathway / D2 dopamine receptor binding / Transcriptional and post-translational regulation of MITF-M expression and activity / adenylate cyclase-inhibiting serotonin receptor signaling pathway / G protein-coupled serotonin receptor binding / cellular response to glucagon stimulus / sensory perception of pain / intracellular glucose homeostasis / cellular response to forskolin / Peptide ligand-binding receptors / regulation of mitotic spindle organization / positive regulation of insulin secretion involved in cellular response to glucose stimulus / adenylate cyclase activator activity / chemokine-mediated signaling pathway / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / Regulation of insulin secretion / neuropeptide signaling pathway / response to prostaglandin E / positive regulation of cholesterol biosynthetic process / negative regulation of insulin secretion / bone development / G protein-coupled receptor binding / platelet aggregation / response to peptide hormone / cognition / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G-protein beta/gamma-subunit complex binding / centriolar satellite / adenylate cyclase-inhibiting G protein-coupled receptor signaling pathway / Olfactory Signaling Pathway / Activation of the phototransduction cascade / G protein-coupled acetylcholine receptor signaling pathway / positive regulation of insulin secretion / 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 類似検索 - 分子機能 | ||||||||||||||||||
| 生物種 | Homo sapiens (ヒト) / synthetic construct (人工物) / ![]() | ||||||||||||||||||
| 手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.98 Å | ||||||||||||||||||
データ登録者 | Feng WB / Zhou QT / Zheng C / Yang DH / Wang MW / Liu X / Zhao FH / Chen Y / Ye CY / Xu YN ...Feng WB / Zhou QT / Zheng C / Yang DH / Wang MW / Liu X / Zhao FH / Chen Y / Ye CY / Xu YN / Cong ZT / Li H / Lin S | ||||||||||||||||||
| 資金援助 | 中国, 5件
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引用 | ジャーナル: Structure / 年: 2025タイトル: Structural basis for the constitutive activity of the melanocortin receptor family. 著者: Wenbo Feng / Qingtong Zhou / Chang Zheng / Dehua Yang / Ming-Wei Wang / ![]() 要旨: The constitutive activity of melanocortin receptors (MCRs) is integral to several physiological processes. The unliganded cryo-electron microscopy structures of MC1R, MC2R, MC3R, MC4R, and MC5R in ...The constitutive activity of melanocortin receptors (MCRs) is integral to several physiological processes. The unliganded cryo-electron microscopy structures of MC1R, MC2R, MC3R, MC4R, and MC5R in complex with G proteins determined at global resolutions of 2.98 Å, 3.01 Å, 2.75 Å, 3.12 Å, and 2.86 Å, respectively, revealed that their binding poses and interactions with G are similar to those of agonist-bound MCRs. The extracellular regions of the transmembrane helices (TMs) exhibit distinct conformational rearrangements, characterized by varying shifts of TM3 and outward displacements of TM4. These variations represent unique structural features of constitutively activated MCRs. Unassigned electron densities were observed within the orthosteric pockets where extensive interactions with cognate ligands occur. In addition, zinc ions, but not calcium, positively regulated MC4R activity in a dose-dependent manner. Our findings provide valuable insights into the molecular mechanisms underlying MCR basal activity and highlight the role of divalent ions in receptor activation. | ||||||||||||||||||
| 履歴 |
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構造の表示
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_62024.map.gz | 30.3 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-62024-v30.xml emd-62024.xml | 22.9 KB 22.9 KB | 表示 表示 | EMDBヘッダ |
| FSC (解像度算出) | emd_62024_fsc.xml | 8.4 KB | 表示 | FSCデータファイル |
| 画像 | emd_62024.png | 36.8 KB | ||
| Filedesc metadata | emd-62024.cif.gz | 7 KB | ||
| その他 | emd_62024_half_map_1.map.gz emd_62024_half_map_2.map.gz | 59.4 MB 59.4 MB | ||
| アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-62024 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-62024 | HTTPS FTP |
-関連構造データ
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リンク
| EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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| 「今月の分子」の関連する項目 |
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マップ
| ファイル | ダウンロード / ファイル: emd_62024.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| 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: 1.071 Å | ||||||||||||||||||||||||||||||||||||
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-ハーフマップ: #2
| ファイル | emd_62024_half_map_1.map | ||||||||||||
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| 密度ヒストグラム |
-ハーフマップ: #1
| ファイル | emd_62024_half_map_2.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
-全体 : Cryo-EM structure of unliganded human melanocortin receptor 1 in ...
| 全体 | 名称: Cryo-EM structure of unliganded human melanocortin receptor 1 in complex with G protein |
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| 要素 |
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-超分子 #1: Cryo-EM structure of unliganded human melanocortin receptor 1 in ...
| 超分子 | 名称: Cryo-EM structure of unliganded human melanocortin receptor 1 in complex with G protein タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Melanocyte-stimulating hormone receptor,Melanocyte-stimulating ho...
| 分子 | 名称: Melanocyte-stimulating hormone receptor,Melanocyte-stimulating hormone receptor,Melanocyte-stimulating hormone receptor,Melanocyte-stimulating hormone receptor,LgBiT subunit タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: synthetic construct (人工物) |
| 分子量 | 理論値: 53.336191 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MAVQGSQRRL LGSLNSTPTA IPQLGLAANQ TGARCLEVSI SDGLFLSLGL VSLVENALVV ATIAKNRNLH SPMYCFICCL ALSDLLVSG SNVLETAVIL LLEAGALVAR AAVLQQLDNV IDVITCSSML SSLCFLGAIA VDRYISIFYA LRYHSIVTLP R ARRAVAAI ...文字列: MAVQGSQRRL LGSLNSTPTA IPQLGLAANQ TGARCLEVSI SDGLFLSLGL VSLVENALVV ATIAKNRNLH SPMYCFICCL ALSDLLVSG SNVLETAVIL LLEAGALVAR AAVLQQLDNV IDVITCSSML SSLCFLGAIA VDRYISIFYA LRYHSIVTLP R ARRAVAAI WVASVVFSTL FIAYYDHVAV LLCLVVFFLA MLVLMAVLYV HMLARACQHA QGIARLHKRQ RPVHQGFGLK GA VTLTILL GIFFLCWGPF FLHLTLIVLC PEHPTCGCIF KNFNLFLALI ICNAIIDPLI YAFHSQELRR TLKEVLTCSW GSS GGGGSG GGGSSGVFTL EDFVGDWEQT AAYNLDQVLE QGGVSSLLQN LAVSVTPIQR IVRSGENALK IDIHVIIPYE GLSA DQMAQ IEEVFKVVYP VDDHHFKVIL PYGTLVIDGV TPNMLNYFGR PYEGIAVFDG KKITVTGTLW NGNKIIDERL ITPDG SMLF RVTINS UniProtKB: Melanocyte-stimulating hormone receptor |
-分子 #2: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine n...
| 分子 | 名称: Guanine nucleotide-binding protein G(i) subunit alpha-1,Guanine nucleotide-binding protein G(s) subunit alpha isoforms short タイプ: protein_or_peptide / ID: 2 / 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 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 41.879465 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RATHRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI ...文字列: MGCTLSAEDK AAVERSKMIE KQLQKDKQVY RATHRLLLLG ADNSGKSTIV KQMRIYHVNG YSEEECKQYK AVVYSNTIQS IIAIIRAMG RLKIDFGDSA RADDARQLFV LAGAAEEGFM TAELAGVIKR LWKDSGVQAC FNRSREYQLN DSAAYYLNDL D RIAQPNYI PTQQDVLRTR VKTSGIFETK FQVDKVNFHM FDVGAQRDER RKWIQCFNDV TAIIFVVDSS DYNRLQEALN DF KSIWNNR WLRTISVILF LNKQDLLAEK VLAGKSKIED YFPEFARYTT PEDATPEPGE DPRVTRAKYF IRDEFLRIST ASG DGRHYC YPHFTCSVDT ENARRIFNDC RDIIQRMHLR QYELL UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(i) subunit alpha-1, ...UniProtKB: Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(i) subunit alpha-1, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short, Guanine nucleotide-binding protein G(s) subunit alpha isoforms short |
-分子 #3: 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,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit ...名称: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1,HiBiT タイプ: protein_or_peptide / ID: 3 / コピー数: 1 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: synthetic construct (人工物) |
| 分子量 | 理論値: 40.226992 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD ...文字列: MGSLLQSELD QLRQEAEQLK NQIRDARKAC ADATLSQITN NIDPVGRIQM RTRRTLRGHL AKIYAMHWGT DSRLLVSASQ DGKLIIWDS YTTNKVHAIP LRSSWVMTCA YAPSGNYVAC GGLDNICSIY NLKTREGNVR VSRELAGHTG YLSCCRFLDD N QIVTSSGD TTCALWDIET GQQTTTFTGH TGDVMSLSLA PDTRLFVSGA CDASAKLWDV REGMCRQTFT GHESDINAIC FF PNGNAFA TGSDDATCRL FDLRADQELM TYSHDNIICG ITSVSFSKSG RLLLAGYDDF NCNVWDALKA DRAGVLAGHD NRV SCLGVT DDGMAVATGS WDSFLKIWNG SSGGGGSGGG GSSGVSGWRL FKKIS UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-分子 #4: 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: 4 / コピー数: 1 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: ![]() |
| 分子量 | 理論値: 7.861143 KDa |
| 組換発現 | 生物種: ![]() |
| 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 #5: Nb35
| 分子 | 名称: Nb35 / タイプ: protein_or_peptide / ID: 5 / コピー数: 1 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: synthetic construct (人工物) |
| 分子量 | 理論値: 17.352498 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MKYLLPTAAA GLLLLAAQPA MAQVQLQESG GGLVQPGGSL RLSCAASGFT FSNYKMNWVR QAPGKGLEWV SDISQSGASI SYTGSVKGR FTISRDNAKN TLYLQMNSLK PEDTAVYYCA RCPAPFTRDC FDVTSTTYAY RGQGTQVTVS SHHHHHHEPE A |
-分子 #6: scFv16
| 分子 | 名称: scFv16 / タイプ: protein_or_peptide / ID: 6 / コピー数: 1 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: synthetic construct (人工物) |
| 分子量 | 理論値: 30.363043 KDa |
| 組換発現 | 生物種: ![]() |
| 配列 | 文字列: MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFAVQ LVESGGGLVQ PGGSRKLSCS ASGFAFSSFG MHWVRQAPEK GLEWVAYIS SGSGTIYYAD TVKGRFTISR DDPKNTLFLQ MTSLRSEDTA MYYCVRSIYY YGSSPFDFWG QGTTLTVSAG G GGSGGGGS ...文字列: MLLVNQSHQG FNKEHTSKMV SAIVLYVLLA AAAHSAFAVQ LVESGGGLVQ PGGSRKLSCS ASGFAFSSFG MHWVRQAPEK GLEWVAYIS SGSGTIYYAD TVKGRFTISR DDPKNTLFLQ MTSLRSEDTA MYYCVRSIYY YGSSPFDFWG QGTTLTVSAG G GGSGGGGS GGGGSADIVM TQATSSVPVT PGESVSISCR SSKSLLHSNG NTYLYWFLQR PGQSPQLLIY RMSNLASGVP DR FSGSGSG TAFTLTISRL EAEDVGVYYC MQHLEYPLTF GAGTKLEL |
-実験情報
-構造解析
| 手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
| 試料の集合状態 | particle |
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試料調製
| 緩衝液 | pH: 7.4 |
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| 凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
| 顕微鏡 | TFS KRIOS |
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| 撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 80.0 e/Å2 |
| 電子線 | 加速電圧: 300 kV / 電子線源: OTHER |
| 電子光学系 | 照射モード: OTHER / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 1.2 µm |
| 実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
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
中国, 5件
引用






































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解析

Coot
