1YJV

Solution structure of the Cu(I) form of the sixth soluble domain of Menkes protein

1YJV の概要

• エントリーDOI: 10.2210/pdb1yjv/pdb
• 関連するPDBエントリー: 1YJR 1YJT 1YJU
• NMR情報: BMRB: 6480
• 分子名称: Copper-transporting ATPase 1, COPPER (I) ION (2 entities in total)
• 機能のキーワード: metallochaperone, protein-protein interaction, copper(i), metal homeostasis, hydrolase
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Golgi apparatus, trans-Golgi network membrane; Multi-pass membrane protein. Isoform 3: Cytoplasm, cytosol (Probable). Isoform 5: Endoplasmic reticulum: Q04656
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 8255.14

構造登録者

Banci, L.,Bertini, I.,Cantini, F.,Migliardi, M.,Rosato, A.,Wang, S. (登録日: 2005-01-15, 公開日: 2006-01-03, 最終更新日: 2024-05-29)

主引用文献

Banci, L.,Bertini, I.,Cantini, F.,Migliardi, M.,Rosato, A.,Wang, S.
An atomic-level investigation of the disease-causing A629P mutant of the Menkes protein, ATP7A
J.Mol.Biol., 352:409-417, 2005

PubMed Abstract: Menkes disease is a fatal disease that can be induced by various mutations in the ATP7A gene, leading to unpaired uptake of dietary copper. The ATP7A gene encodes a copper(I)-translocating ATPase. Here the disease-causing A629P mutation, which occurs in the last of the six copper(I)-binding soluble domains of the ATPase (hereafter MNK6), was investigated. To understand why this apparently minor amino acid replacement is pathogenic, the solution structures and dynamics on various time-scales of wild-type and A629P-MNK6 were determined both in the apo- and copper(I)-loaded forms. The interaction in vitro with the physiological ATP7A copper(I)-donor (HAH1) was additionally studied. The A629P mutation makes the protein beta-sheet more solvent accessible, possibly resulting in an enhanced susceptibility of ATP7A to proteolytic cleavage and/or in reduced capability of copper(I)-translocation. A small reduction of the affinity for copper(I) is also observed. Both effects could concur to pathogenicity.

PubMed: 16083905
DOI: 10.1016/j.jmb.2005.07.034

実験手法

SOLUTION NMR