4KVM

The NatA (Naa10p/Naa15p) amino-terminal acetyltransferase complex bound to a bisubstrate analog

4KVM の概要

• エントリーDOI: 10.2210/pdb4kvm/pdb
• 関連するPDBエントリー: 4KVO 4KVX
• 分子名称: N-terminal acetyltransferase A complex subunit nat1, N-terminal acetyltransferase A complex catalytic subunit ard1, bisubstrate analog inhibitor, ... (7 entities in total)
• 機能のキーワード: acetyltransferase, tpr repeats, amino-terminal acetylation, transferase-transferase inhibitor complex, transferase/transferase inhibitor
• 由来する生物種: Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast); 詳細
• 細胞内の位置: Cytoplasm: O74985 Q9UTI3
• タンパク質・核酸の鎖数: 12
• 化学式量合計: 416058.97

構造登録者

Liszczak, G.P.,Marmorstein, R.Q. (登録日: 2013-05-22, 公開日: 2013-07-31, 最終更新日: 2024-10-30)

主引用文献

Liszczak, G.,Goldberg, J.M.,Foyn, H.,Petersson, E.J.,Arnesen, T.,Marmorstein, R.
Molecular basis for N-terminal acetylation by the heterodimeric NatA complex.
Nat.Struct.Mol.Biol., 20:1098-1105, 2013

PubMed Abstract: N-terminal acetylation is ubiquitous among eukaryotic proteins and controls a myriad of biological processes. Of the N-terminal acetyltransferases (NATs) that facilitate this cotranslational modification, the heterodimeric NatA complex has the most diversity for substrate selection and modifies the majority of all N-terminally acetylated proteins. Here, we report the X-ray crystal structure of the 100-kDa holo-NatA complex from Schizosaccharomyces pombe, in the absence and presence of a bisubstrate peptide-CoA-conjugate inhibitor, as well as the structure of the uncomplexed Naa10p catalytic subunit. The NatA-Naa15p auxiliary subunit contains 13 tetratricopeptide motifs and adopts a ring-like topology that wraps around the NatA-Naa10p subunit, an interaction that alters the Naa10p active site for substrate-specific acetylation. These studies have implications for understanding the mechanistic details of other NAT complexes and how regulatory subunits modulate the activity of the broader family of protein acetyltransferases.

PubMed: 23912279
DOI: 10.1038/nsmb.2636

実験手法

X-RAY DIFFRACTION (2.597 Å)