(Lipoprotein-releasing system transmembrane protein ...) x 2
Lipoprotein-releasing system ATP-binding protein LolD
Triacyl-lipoprotein
キーワード
MEMBRANE PROTEIN / ATP binding cassette transporter / ABC transporter / inner membrane / protein transport
機能・相同性
機能・相同性情報
lipoprotein releasing activity / protein localization to outer membrane / lipoprotein localization to outer membrane / plasma membrane protein complex / トランスロカーゼ; 他の化合物の輸送を触媒; ヌクレオシド三リン酸の加水分解に伴う / lipoprotein transport / transmembrane transporter activity / ATP-binding cassette (ABC) transporter complex / transmembrane transport / outer membrane-bounded periplasmic space ...lipoprotein releasing activity / protein localization to outer membrane / lipoprotein localization to outer membrane / plasma membrane protein complex / トランスロカーゼ; 他の化合物の輸送を触媒; ヌクレオシド三リン酸の加水分解に伴う / lipoprotein transport / transmembrane transporter activity / ATP-binding cassette (ABC) transporter complex / transmembrane transport / outer membrane-bounded periplasmic space / ATP hydrolysis activity / ATP binding / plasma membrane 類似検索 - 分子機能
Lipoprotein releasing system, ATP-binding protein / Lipoprotein-releasing system transmembrane protein LolE, gammaproteobacteria type / Lipoprotein release ATP-binding protein lolD family profile. / Lipoprotein-releasing system transmembrane protein LolC/E / : / MacB-like periplasmic core domain / MacB-like periplasmic core domain / MacB, ATP-binding domain / ABC transporter, lipoprotein release, LolD / ABC3 transporter permease protein domain ...Lipoprotein releasing system, ATP-binding protein / Lipoprotein-releasing system transmembrane protein LolE, gammaproteobacteria type / Lipoprotein release ATP-binding protein lolD family profile. / Lipoprotein-releasing system transmembrane protein LolC/E / : / MacB-like periplasmic core domain / MacB-like periplasmic core domain / MacB, ATP-binding domain / ABC transporter, lipoprotein release, LolD / ABC3 transporter permease protein domain / FtsX-like permease C-terminal / ABC transporter-like, conserved site / ABC transporters family signature. / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性
PENTADECANOIC ACID / : / polypeptide(D) / Lipoprotein-releasing system transmembrane protein LolC / Lipoprotein-releasing system ATP-binding protein LolD / Lipoprotein-releasing system transmembrane protein LolE 類似検索 - 構成要素
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
米国
引用
ジャーナル: Nat Commun / 年: 2021 タイトル: Mechanism of LolCDE as a molecular extruder of bacterial triacylated lipoproteins. 著者: Stuti Sharma / Ruoyu Zhou / Li Wan / Shan Feng / KangKang Song / Chen Xu / Yanyan Li / Maofu Liao / 要旨: Lipoproteins are important for bacterial growth and antibiotic resistance. These proteins use lipid acyl chains attached to the N-terminal cysteine residue to anchor on the outer surface of ...Lipoproteins are important for bacterial growth and antibiotic resistance. These proteins use lipid acyl chains attached to the N-terminal cysteine residue to anchor on the outer surface of cytoplasmic membrane. In Gram-negative bacteria, many lipoproteins are transported to the outer membrane (OM), a process dependent on the ATP-binding cassette (ABC) transporter LolCDE which extracts the OM-targeted lipoproteins from the cytoplasmic membrane. Lipid-anchored proteins pose a unique challenge for transport machinery as they have both hydrophobic lipid moieties and soluble protein component, and the underlying mechanism is poorly understood. Here we determined the cryo-EM structures of nanodisc-embedded LolCDE in the nucleotide-free and nucleotide-bound states at 3.8-Å and 3.5-Å resolution, respectively. The structural analyses, together with biochemical and mutagenesis studies, uncover how LolCDE recognizes its substrate by interacting with the lipid and N-terminal peptide moieties of the lipoprotein, and identify the amide-linked acyl chain as the key element for LolCDE interaction. Upon nucleotide binding, the transmembrane helices and the periplasmic domains of LolCDE undergo large-scale, asymmetric movements, resulting in extrusion of the captured lipoprotein. Comparison of LolCDE and MacB reveals the conserved mechanism of type VII ABC transporters and emphasizes the unique properties of LolCDE as a molecule extruder of triacylated lipoproteins.
A: Lipoprotein-releasing system transmembrane protein LolC B: Lipoprotein-releasing system transmembrane protein LolE D: Lipoprotein-releasing system ATP-binding protein LolD C: Lipoprotein-releasing system ATP-binding protein LolD E: Triacyl-lipoprotein ヘテロ分子
分子量: 526.832 Da / 分子数: 1 / 由来タイプ: 合成 / 式: C32H62O5 / タイプ: SUBJECT OF INVESTIGATION
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詳細
研究の焦点であるリガンドがあるか
Y
Has protein modification
Y
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実験情報
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実験
実験
手法: 電子顕微鏡法
EM実験
試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法
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試料調製
構成要素
名称: Lipo-releasing system transmembrane protein lolC (E.C.3.6.3.-), Lipoprotein-releasing system transmembrane protein (E.C.3.6.3.-), Lipoprotein-releasing system ATP-binding protein LolD (E.C.7. ...名称: Lipo-releasing system transmembrane protein lolC (E.C.3.6.3.-), Lipoprotein-releasing system transmembrane protein (E.C.3.6.3.-), Lipoprotein-releasing system ATP-binding protein LolD (E.C.7.6.2.-), Triacyl-lipoprotein タイプ: COMPLEX / Entity ID: #1-#3 / 由来: MULTIPLE SOURCES
分子量
値: 130 kDa/nm / 実験値: NO
由来(天然)
生物種: Escherichia coli (大腸菌)
由来(組換発現)
生物種: Escherichia coli (大腸菌)
緩衝液
pH: 7.4
試料
濃度: 1.6 mg/ml / 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES / 詳細: This sample was monodisperse
急速凍結
凍結剤: ETHANE
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電子顕微鏡撮影
実験機器
モデル: Titan Krios / 画像提供: FEI Company
顕微鏡
モデル: FEI TITAN KRIOS
電子銃
電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER