+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-40969 | |||||||||
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タイトル | Uncrosslinked nNOS-CaM oxygenase homodimer | |||||||||
マップデータ | nNOS-CaM map | |||||||||
試料 |
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キーワード | Calmodulin / Complex / CYTOSOLIC PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 Nitric oxide stimulates guanylate cyclase / negative regulation of hepatic stellate cell contraction / positive regulation of adenylate cyclase-activating adrenergic receptor signaling pathway / retrograde trans-synaptic signaling by nitric oxide / synaptic signaling by nitric oxide / negative regulation of iron ion transmembrane transport / ROS and RNS production in phagocytes / azurophil granule / negative regulation of vasoconstriction / positive regulation of sodium ion transmembrane transport ...Nitric oxide stimulates guanylate cyclase / negative regulation of hepatic stellate cell contraction / positive regulation of adenylate cyclase-activating adrenergic receptor signaling pathway / retrograde trans-synaptic signaling by nitric oxide / synaptic signaling by nitric oxide / negative regulation of iron ion transmembrane transport / ROS and RNS production in phagocytes / azurophil granule / negative regulation of vasoconstriction / positive regulation of sodium ion transmembrane transport / postsynaptic specialization, intracellular component / nitric oxide metabolic process / positive regulation of adenylate cyclase-activating G protein-coupled receptor signaling pathway / response to nitric oxide / Ion homeostasis / negative regulation of cytosolic calcium ion concentration / peptidyl-cysteine S-nitrosylation / cadmium ion binding / positive regulation of the force of heart contraction / negative regulation of potassium ion transport / negative regulation of calcium ion transport / behavioral response to cocaine / regulation of postsynaptic membrane potential / calyx of Held / regulation of neurogenesis / postsynaptic density, intracellular component / negative regulation of serotonin uptake / nitric-oxide synthase (NADPH) / multicellular organismal response to stress / response to vitamin E / sodium channel regulator activity / nitric oxide mediated signal transduction / negative regulation of insulin secretion / nitric-oxide synthase activity / xenobiotic catabolic process / arginine catabolic process / NADPH binding / striated muscle contraction / regulation of sodium ion transport / nitric oxide-cGMP-mediated signaling / T-tubule / nitric oxide biosynthetic process / cellular response to epinephrine stimulus / sarcoplasmic reticulum membrane / negative regulation of blood pressure / photoreceptor inner segment / response to hormone / response to nutrient levels / secretory granule / sarcoplasmic reticulum / positive regulation of long-term synaptic potentiation / establishment of localization in cell / response to activity / cell periphery / female pregnancy / response to nicotine / phosphoprotein binding / response to lead ion / establishment of protein localization / potassium ion transport / caveola / cellular response to growth factor stimulus / response to organic cyclic compound / sarcolemma / Z disc / response to peptide hormone / cellular response to mechanical stimulus / response to estrogen / vasodilation / calcium-dependent protein binding / calcium ion transport / FMN binding / positive regulation of peptidyl-serine phosphorylation / flavin adenine dinucleotide binding / NADP binding / ATPase binding / response to heat / scaffold protein binding / nuclear membrane / response to ethanol / negative regulation of neuron apoptotic process / mitochondrial outer membrane / transmembrane transporter binding / response to lipopolysaccharide / dendritic spine / postsynaptic density / cytoskeleton / response to hypoxia / calmodulin binding / membrane raft / negative regulation of cell population proliferation / glutamatergic synapse / dendrite / heme binding / synapse / negative regulation of apoptotic process / positive regulation of DNA-templated transcription / perinuclear region of cytoplasm / enzyme binding / positive regulation of transcription by RNA polymerase II 類似検索 - 分子機能 | |||||||||
生物種 | Rattus norvegicus (ドブネズミ) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 2.7 Å | |||||||||
データ登録者 | Lee K / Pospiech TH / Southworth D | |||||||||
資金援助 | 米国, 1件
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引用 | ジャーナル: J Biol Chem / 年: 2024 タイトル: Mapping interactions of calmodulin and neuronal NO synthase by crosslinking and mass spectrometry. 著者: Dana Felker / Kanghyun Lee / Thomas H Pospiech / Yoshihiro Morishima / Haoming Zhang / Miranda Lau / Daniel R Southworth / Yoichi Osawa / 要旨: Neuronal nitric oxide synthase (nNOS) is a homodimeric cytochrome P450-like enzyme that catalyzes the conversion of L-arginine to nitric oxide in the presence of NADPH and molecular oxygen. The ...Neuronal nitric oxide synthase (nNOS) is a homodimeric cytochrome P450-like enzyme that catalyzes the conversion of L-arginine to nitric oxide in the presence of NADPH and molecular oxygen. The binding of calmodulin (CaM) to a linker region between the FAD/FMN-containing reductase domain, and the heme-containing oxygenase domain is needed for electron transfer reactions, reduction of the heme, and NO synthesis. Due to the dynamic nature of the reductase domain and low resolution of available full-length structures, the exact conformation of the CaM-bound active complex during heme reduction is still unresolved. Interestingly, hydrogen-deuterium exchange and mass spectrometry studies revealed interactions of the FMN domain and CaM with the oxygenase domain for iNOS, but not nNOS. This finding prompted us to utilize covalent crosslinking and mass spectrometry to clarify interactions of CaM with nNOS. Specifically, MS-cleavable bifunctional crosslinker disuccinimidyl dibutyric urea was used to identify thirteen unique crosslinks between CaM and nNOS as well as 61 crosslinks within the nNOS. The crosslinks provided evidence for CaM interaction with the oxygenase and reductase domain residues as well as interactions of the FMN domain with the oxygenase dimer. Cryo-EM studies, which gave a high-resolution model of the oxygenase domain, along with crosslink-guided docking provided a model of nNOS that brings the FMN within 15 Å of the heme in support for a more compact conformation than previously observed. These studies also point to the utility of covalent crosslinking and mass spectrometry in capturing transient dynamic conformations that may not be captured by hydrogen-deuterium exchange and mass spectrometry experiments. | |||||||||
履歴 |
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-構造の表示
添付画像 |
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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_40969.map.gz | 118 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-40969-v30.xml emd-40969.xml | 16 KB 16 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_40969.png | 86.5 KB | ||
Filedesc metadata | emd-40969.cif.gz | 6.3 KB | ||
その他 | emd_40969_half_map_1.map.gz emd_40969_half_map_2.map.gz | 116.2 MB 116.2 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-40969 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-40969 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_40969_validation.pdf.gz | 774.5 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_40969_full_validation.pdf.gz | 774.1 KB | 表示 | |
XML形式データ | emd_40969_validation.xml.gz | 14 KB | 表示 | |
CIF形式データ | emd_40969_validation.cif.gz | 16.5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-40969 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-40969 | HTTPS FTP |
-関連構造データ
関連構造データ | 8t1jMC 8t1kC 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 (文献) |
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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 |
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「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_40969.map.gz / 形式: CCP4 / 大きさ: 125 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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注釈 | nNOS-CaM map | ||||||||||||||||||||||||||||||||||||
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: 1.059 Å | ||||||||||||||||||||||||||||||||||||
密度 |
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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: nNOS-CaM half map A
ファイル | emd_40969_half_map_1.map | ||||||||||||
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注釈 | nNOS-CaM half map A | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-ハーフマップ: nNOS-CaM half map B
ファイル | emd_40969_half_map_2.map | ||||||||||||
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注釈 | nNOS-CaM half map B | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Native CaM-bound nNOS homodimer
全体 | 名称: Native CaM-bound nNOS homodimer |
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要素 |
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-超分子 #1: Native CaM-bound nNOS homodimer
超分子 | 名称: Native CaM-bound nNOS homodimer / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1 |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
-分子 #1: Nitric oxide synthase 1
分子 | 名称: Nitric oxide synthase 1 / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 光学異性体: LEVO / EC番号: nitric-oxide synthase (NADPH) |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) |
分子量 | 理論値: 160.769562 KDa |
組換発現 | 生物種: Escherichia coli (大腸菌) |
配列 | 文字列: MEENTFGVQQ IQPNVISVRL FKRKVGGLGF LVKERVSKPP VIISDLIRGG AAEQSGLIQA GDIILAVNDR PLVDLSYDSA LEVLRGIAS ETHVVLILRG PEGFTTHLET TFTGDGTPKT IRVTQPLGPP TKAVDLSHQP SASKDQSLAV DRVTGLGNGP Q HAQGHGQG ...文字列: MEENTFGVQQ IQPNVISVRL FKRKVGGLGF LVKERVSKPP VIISDLIRGG AAEQSGLIQA GDIILAVNDR PLVDLSYDSA LEVLRGIAS ETHVVLILRG PEGFTTHLET TFTGDGTPKT IRVTQPLGPP TKAVDLSHQP SASKDQSLAV DRVTGLGNGP Q HAQGHGQG AGSVSQANGV AIDPTMKSTK ANLQDIGEHD ELLKEIEPVL SILNSGSKAT NRGGPAKAEM KDTGIQVDRD LD GKSHKAP PLGGDNDRVF NDLWGKDNVP VILNNPYSEK EQSPTSGKQS PTKNGSPSRC PRFLKVKNWE TDVVLTDTLH LKS TLETGC TEHICMGSIM LPSQHTRKPE DVRTKDQLFP LAKEFLDQYY SSIKRFGSKA HMDRLEEVNK EIESTSTYQL KDTE LIYGA KHAWRNASRC VGRIQWSKLQ VFDARDCTTA HGMFNYICNH VKYATNKGNL RSAITIFPQR TDGKHDFRVW NSQLI RYAG YKQPDGSTLG DPANVQFTEI CIQQGWKAPR GRFDVLPLLL QANGNDPELF QIPPELVLEV PIRHPKFDWF KDLGLK WYG LPAVSNMLLE IGGLEFSACP FSGWYMGTEI GVRDYCDNSR YNILEEVAKK MDLDMRKTSS LWKDQALVEI NIAVLYS FQ SDKVTIVDHH SATESFIKHM ENEYRCRGGC PADWVWIVPP MSGSITPVFH QEMLNYRLTP SFEYQPDPWN THVWKGTN G TPTKRRAIGF KKLAEAVKFS AKLMGQAMAK RVKATILYAT ETGKSQAYAK TLCEIFKHAF DAKAMSMEEY DIVHLEHEA LVLVVTSTFG NGDPPENGEK FGCALMEMRH PNSVQEERKS YKVRFNSVSS YSDSRKSSGD GPDLRDNFES TGPLANVRFS VFGLGSRAY PHFCAFGHAV DTLLEELGGE RILKMREGDE LCGQEEAFRT WAKKVFKAAC DVFCVGDDVN IEKPNNSLIS N DRSWKRNK FRLTYVAEAP DLTQGLSNVH KKRVSAARLL SRQNLQSPKF SRSTIFVRLH TNGNQELQYQ PGDHLGVFPG NH EDLVNAL IERLEDAPPA NHVVKVEMLE ERNTALGVIS NWKDESRLPP CTIFQAFKYY LDITTPPTPL QLQQFASLAT NEK EKQRLL VLSKGLQEYE EWKWGKNPTM VEVLEEFPSI QMPATLLLTQ LSLLQPRYYS ISSSPDMYPD EVHLTVAIVS YHTR DGEGP VHHGVCSSWL NRIQADDVVP CFVRGAPSFH LPRNPQVPCI LVGPGTGIAP FRSFWQQRQF DIQHKGMNPC PMVLV FGCR QSKIDHIYRE ETLQAKNKGV FRELYTAYSR EPDRPKKYVQ DVLQEQLAES VYRALKEQGG HIYVCGDVTM AADVLK AIQ RIMTQQGKLS EEDAGVFISR LRDDNRYHED IFGVTLRTYE VTNRLRSESI AFIEESKKDA DEVFSS UniProtKB: Nitric oxide synthase 1 |
-分子 #2: ZINC ION
分子 | 名称: ZINC ION / タイプ: ligand / ID: 2 / コピー数: 1 / 式: ZN |
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分子量 | 理論値: 65.409 Da |
-分子 #3: ARGININE
分子 | 名称: ARGININE / タイプ: ligand / ID: 3 / コピー数: 2 / 式: ARG |
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分子量 | 理論値: 175.209 Da |
Chemical component information | ChemComp-ARG: |
-分子 #4: 5,6,7,8-TETRAHYDROBIOPTERIN
分子 | 名称: 5,6,7,8-TETRAHYDROBIOPTERIN / タイプ: ligand / ID: 4 / コピー数: 2 / 式: H4B |
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分子量 | 理論値: 241.247 Da |
Chemical component information | ChemComp-H4B: |
-分子 #5: PROTOPORPHYRIN IX CONTAINING FE
分子 | 名称: PROTOPORPHYRIN IX CONTAINING FE / タイプ: ligand / ID: 5 / コピー数: 2 / 式: HEM |
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分子量 | 理論値: 616.487 Da |
Chemical component information | ChemComp-HEM: |
-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 |
-試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 平均電子線量: 56.0 e/Å2 |
電子線 | 加速電圧: 300 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): 2.0 µm / 最小 デフォーカス(公称値): 1.0 µm |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: OTHER |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 2.7 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 138304 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |