+
データを開く
-
基本情報
登録情報 | ![]() | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Lateral hexamer | |||||||||
![]() | ||||||||||
![]() |
| |||||||||
機能・相同性 | Phycobilisome, alpha/beta subunit / Phycobilisome, alpha/beta subunit superfamily / Phycobilisome protein / phycobilisome / chloroplast thylakoid membrane / photosynthesis / Globin-like superfamily / Phycoerythrin alpha subunit / B-phycoerythrin beta chain![]() | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 6.3 Å | |||||||||
![]() | You X / Zhang X / Cheng J / Xiao YN / Sun S / Sui SF | |||||||||
資金援助 | 1件
| |||||||||
![]() | ![]() タイトル: In situ structure of the red algal phycobilisome-PSII-PSI-LHC megacomplex. 著者: Xin You / Xing Zhang / Jing Cheng / Yanan Xiao / Jianfei Ma / Shan Sun / Xinzheng Zhang / Hong-Wei Wang / Sen-Fang Sui / ![]() 要旨: In oxygenic photosynthetic organisms, light energy is captured by antenna systems and transferred to photosystem II (PSII) and photosystem I (PSI) to drive photosynthesis. The antenna systems of red ...In oxygenic photosynthetic organisms, light energy is captured by antenna systems and transferred to photosystem II (PSII) and photosystem I (PSI) to drive photosynthesis. The antenna systems of red algae consist of soluble phycobilisomes (PBSs) and transmembrane light-harvesting complexes (LHCs). Excitation energy transfer pathways from PBS to photosystems remain unclear owing to the lack of structural information. Here we present in situ structures of PBS-PSII-PSI-LHC megacomplexes from the red alga Porphyridium purpureum at near-atomic resolution using cryogenic electron tomography and in situ single-particle analysis, providing interaction details between PBS, PSII and PSI. The structures reveal several unidentified and incomplete proteins and their roles in the assembly of the megacomplex, as well as a huge and sophisticated pigment network. This work provides a solid structural basis for unravelling the mechanisms of PBS-PSII-PSI-LHC megacomplex assembly, efficient energy transfer from PBS to the two photosystems, and regulation of energy distribution between PSII and PSI. | |||||||||
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 | ![]() | 59.5 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 17.6 KB 17.6 KB | 表示 表示 | ![]() |
画像 | ![]() | 65.7 KB | ||
その他 | ![]() ![]() | 58.5 MB 58.5 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-検証レポート
文書・要旨 | ![]() | 933.9 KB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 933.5 KB | 表示 | |
XML形式データ | ![]() | 12.1 KB | 表示 | |
CIF形式データ | ![]() | 14.2 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
EMDBのページ | ![]() ![]() |
---|
-
マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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: 1.632 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: #1
ファイル | emd_33558_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: #2
ファイル | emd_33558_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-
試料の構成要素
-全体 : Lateral hexamer of PBS
全体 | 名称: Lateral hexamer of PBS |
---|---|
要素 |
|
-超分子 #1: Lateral hexamer of PBS
超分子 | 名称: Lateral hexamer of PBS / タイプ: complex / ID: 1 / キメラ: Yes / 親要素: 0 / 含まれる分子: #1-#4 |
---|---|
由来(天然) | 生物種: ![]() |
-分子 #1: B-phycoerythrin beta chain
分子 | 名称: B-phycoerythrin beta chain / タイプ: protein_or_peptide / ID: 1 / コピー数: 6 / 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: ![]() |
分子量 | 理論値: 18.584182 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MLDAFSRVVV NSDAKAAYVG GSDLQALKSF IADGNKRLDA VNSIVSNASC MVSDAVSGMI CENPGLISPG G(MEN)CYTN RRM AACLRDGEII LRYVSYALLA GDASVLEDRC LNGLKETYIA LGVPTNSSIR AVSIMKAQAV AFITNTATER KMSFAAG DC TSLASEVASY FDRVGAAIS |
-分子 #2: Phycoerythrin alpha subunit
分子 | 名称: Phycoerythrin alpha subunit / タイプ: protein_or_peptide / ID: 2 / コピー数: 6 / 光学異性体: LEVO |
---|---|
由来(天然) | 生物種: ![]() |
分子量 | 理論値: 17.824029 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: MKSVITTVVS AADAAGRFPS NSDLESIQGN IQRSAARLEA AEKLAGNHEA VVKEAGDACF AKYAYLKNPG EAGENQEKIN KCYRDVDHY MRLVNYCLVV GGTGPLDEWG IAGAREVYRT LNLPTSAYVA SIAYTRDRLC VPRDMSAQAG VEFSAYLDYL I NALS |
-分子 #3: LRH
分子 | 名称: LRH / 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: ![]() |
分子量 | 理論値: 7.42214 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) ...文字列: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) |
-分子 #4: LRH
分子 | 名称: LRH / 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: 12.78375 KDa |
組換発現 | 生物種: ![]() |
配列 | 文字列: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) ...文字列: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) |
-分子 #5: PHYCOERYTHROBILIN
分子 | 名称: PHYCOERYTHROBILIN / タイプ: ligand / ID: 5 / コピー数: 31 / 式: PEB |
---|---|
分子量 | 理論値: 588.694 Da |
Chemical component information | ![]() ChemComp-PEB: |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 単粒子再構成法 |
試料の集合状態 | cell |
-
試料調製
緩衝液 | pH: 7 |
---|---|
凍結 | 凍結剤: ETHANE |
-
電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
---|---|
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 平均電子線量: 35.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: SPOT SCAN / 撮影モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 6.0 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: PDB ENTRY PDBモデル - PDB ID: |
---|---|
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 6.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 87000 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |