Multifunctional procollagen lysine hydroxylase and glycosyltransferase LH3 類似検索 - 構成要素
生物種
Homo sapiens (ヒト)
引用
ジャーナル: Nat Commun / 年: 2018 タイトル: Molecular architecture of the multifunctional collagen lysyl hydroxylase and glycosyltransferase LH3. 著者: Luigi Scietti / Antonella Chiapparino / Francesca De Giorgi / Marco Fumagalli / Lela Khoriauli / Solomon Nergadze / Shibom Basu / Vincent Olieric / Lucia Cucca / Blerida Banushi / Antonella ...著者: Luigi Scietti / Antonella Chiapparino / Francesca De Giorgi / Marco Fumagalli / Lela Khoriauli / Solomon Nergadze / Shibom Basu / Vincent Olieric / Lucia Cucca / Blerida Banushi / Antonella Profumo / Elena Giulotto / Paul Gissen / Federico Forneris / 要旨: Lysyl hydroxylases catalyze hydroxylation of collagen lysines, and sustain essential roles in extracellular matrix (ECM) maturation and remodeling. Malfunctions in these enzymes cause severe ...Lysyl hydroxylases catalyze hydroxylation of collagen lysines, and sustain essential roles in extracellular matrix (ECM) maturation and remodeling. Malfunctions in these enzymes cause severe connective tissue disorders. Human lysyl hydroxylase 3 (LH3/PLOD3) bears multiple enzymatic activities, as it catalyzes collagen lysine hydroxylation and also their subsequent glycosylation. Our understanding of LH3 functions is currently hampered by lack of molecular structure information. Here, we present high resolution crystal structures of full-length human LH3 in complex with cofactors and donor substrates. The elongated homodimeric LH3 architecture shows two distinct catalytic sites at the N- and C-terminal boundaries of each monomer, separated by an accessory domain. The glycosyltransferase domain displays distinguishing features compared to other known glycosyltransferases. Known disease-related mutations map in close proximity to the catalytic sites. Collectively, our results provide a structural framework characterizing the multiple functions of LH3, and the molecular mechanisms of collagen-related diseases involving human lysyl hydroxylases.
設備名称: ESRF BM29 / 地域: Grenoble / 国: France / 線源: X-ray synchrotron / 波長: 0.09919 Å / スペクトロメータ・検出器間距離: 2.87 mm
検出器
名称: Pilatus 1M / Pixsize x: 172 mm
スキャン
タイトル: Procollagen lysyl hydroxylase LH3 measured using SEC-SAXS 測定日: 2018年2月28日 / 保管温度: 20 °C / セル温度: 20 °C / 照射時間: 1 sec. / フレーム数: 75 / 単位: 1/nm /
Min
Max
Q
0.0513
4.9277
距離分布関数 P(R)
ソフトウェア P(R): GNOM 5.0 / ポイント数: 319 /
Min
Max
Q
0.0888823
1.58136
P(R) point
1
319
R
0
20.96
結果
カーブのタイプ: sec コメント: The sample was injected at a load concentration of 3.5 mg/mL. The SEC column used was a Superdex 200 PC 3.2/300 Increase (GE Healthcare) at a flow rate 0.075 mL/min.