+データを開く
-基本情報
登録情報 | データベース: SASBDB / ID: SASDA69 |
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試料 | slp-B53 with Mg2+
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機能・相同性 | S-layer homology domain / S-layer homology domain / S-layer homology (SLH) domain profile. / Copper resistance protein CopC/internalin, immunoglobulin-like / Invasin/intimin cell-adhesion fragments / Immunoglobulin-like fold / Slp1 機能・相同性情報 |
生物種 | Lysinibacillus sphaericus (バクテリア) |
引用 | ジャーナル: Eur Biophys J / 年: 2017 タイトル: Analysis of self-assembly of S-layer protein slp-B53 from Lysinibacillus sphaericus. 著者: Jun Liu / Sven Falke / Bjoern Drobot / Dominik Oberthuer / Alexey Kikhney / Tobias Guenther / Karim Fahmy / Dmitri Svergun / Christian Betzel / Johannes Raff / 要旨: The formation of stable and functional surface layers (S-layers) via self-assembly of surface-layer proteins on the cell surface is a dynamic and complex process. S-layers facilitate a number of ...The formation of stable and functional surface layers (S-layers) via self-assembly of surface-layer proteins on the cell surface is a dynamic and complex process. S-layers facilitate a number of important biological functions, e.g., providing protection and mediating selective exchange of molecules and thereby functioning as molecular sieves. Furthermore, S-layers selectively bind several metal ions including uranium, palladium, gold, and europium, some of them with high affinity. Most current research on surface layers focuses on investigating crystalline arrays of protein subunits in Archaea and bacteria. In this work, several complementary analytical techniques and methods have been applied to examine structure-function relationships and dynamics for assembly of S-layer protein slp-B53 from Lysinibacillus sphaericus: (1) The secondary structure of the S-layer protein was analyzed by circular dichroism spectroscopy; (2) Small-angle X-ray scattering was applied to gain insights into the three-dimensional structure in solution; (3) The interaction with bivalent cations was followed by differential scanning calorimetry; (4) The dynamics and time-dependent assembly of S-layers were followed by applying dynamic light scattering; (5) The two-dimensional structure of the paracrystalline S-layer lattice was examined by atomic force microscopy. The data obtained provide essential structural insights into the mechanism of S-layer self-assembly, particularly with respect to binding of bivalent cations, i.e., Mg and Ca. Furthermore, the results obtained highlight potential applications of S-layers in the fields of micromaterials and nanobiotechnology by providing engineered or individual symmetric thin protein layers, e.g., for protective, antimicrobial, or otherwise functionalized surfaces. |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-モデル
モデル #412 | タイプ: dummy / ソフトウェア: (r5577) / ダミー原子の半径: 5.80 A / カイ2乗値: 1.858 Omokage検索でこの集合体の類似形状データを探す (詳細) |
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モデル #543 | タイプ: atomic / ソフトウェア: (2.7.1) / 対称性: P1 / コメント: ~40% by volume / カイ2乗値: 2.42 Omokage検索でこの集合体の類似形状データを探す (詳細) |
モデル #544 | タイプ: atomic / ソフトウェア: (2.7.1) / 対称性: P2 / コメント: ~60% by volume / カイ2乗値: 2.42 Omokage検索でこの集合体の類似形状データを探す (詳細) |
-試料
試料 | 名称: slp-B53 with Mg2+ / 試料濃度: 1.00-7.50 |
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バッファ | 名称: Water with Mg2+ / 組成: Mg2+ |
要素 #271 | 名称: Slp1 / タイプ: protein / 記述: S-layer protein / 分子量: 116.01 / 分子数: 1 / 由来: Lysinibacillus sphaericus / 参照: UniProt: M4N8T6 配列: manqpkkykk fvataatatl vasaivpvas aagfsdvagn dhevainalv eagiingyad gtfkpnqsin rgqvvkllgr wleaqgqeip adwetkqrft dlpvtaeael vkyaalakda gvfagsngnl nhtqtmqrqq mavvlvraik eissvdlvad ykkagfvtei ...配列: manqpkkykk fvataatatl vasaivpvas aagfsdvagn dhevainalv eagiingyad gtfkpnqsin rgqvvkllgr wleaqgqeip adwetkqrft dlpvtaeael vkyaalakda gvfagsngnl nhtqtmqrqq mavvlvraik eissvdlvad ykkagfvtei tdleaaysae qrnaivaley agitnvskfn passitrgqf asflhrtinn vmepeagvst vkainnttve vtfdtevdnv qalnflisdl evknaavkqt nkkvvvltta aqtadkeytv slgedkigtf kgiaavnptk vemvssatqg klgqqvtvka qvtvaegqsk agipvtfyvp gkndavypti tgeaftdeng vasysytrya agtdavtaya tgdrskfatg hvfwgvdtil aieevttgat innganktyk ivyknattgk peanktfnvs flenidvtsn klanatvngv avsqlsnasv vkaaqittds kgeatftvsg tnaevtpvvf eaeaivtsgs ttvtgysqky sasslqttaa kvkfgalqae ytidvtregg evaargvnng reykvtvkdk dgklakneii nvafnedldr vistetkayf idvdkddkqt isstpskisv ktndkgeatf vigsdkendy atpvawidin ssnakdgqld egepktiaqi shfqdayldg gavkaylapk fdksvtefkg netatfkasl vnqsgkdmpn tsiknvtyti fntgsndvqv ngqvispnrs ytvssetlks tdltvtsvng kttsvkviat gvakntdgkd yaftskeata kftsltdvgt qitadvvevn dkelvfagkd pislkdakfy niygaelvgv dafkddlvnn atyatgvvvt ftedkdgkka frvaragteg kvnvgalklt naditvassp attttaatas itltvgetlv innqsytyna gagtadanhy nslvdlagki sadsktggvk avvnagstgl dltgnakgen ftykigalta vstingvvgk davdqqitft fsaavnvkan dsvlingtva gtvasvsgsk vvvkiaqasa iptttaitaf tvngtvlksk ltnsdvtigs itlk |
-実験情報
ビーム | 設備名称: PETRA III P12 / 地域: Hamburg / 国: Germany / 線源: X-ray synchrotron / 波長: 0.12 Å / スペクトロメータ・検出器間距離: 3.1 mm | ||||||||||||||||||||||||||||||
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検出器 | 名称: Pilatus 2M | ||||||||||||||||||||||||||||||
スキャン | タイトル: slp-B53 with Mg / 測定日: 2015年6月2日 / 保管温度: 20 °C / セル温度: 10 °C / 照射時間: 0.05 sec. / フレーム数: 20 / 単位: 1/nm /
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距離分布関数 P(R) | ソフトウェア P(R): GNOM 5.0 / ポイント数: 411 /
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結果 | カーブのタイプ: extrapolated / コメント: slp-B53 with Mg /
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