1K8F

CRYSTAL STRUCTURE OF THE HUMAN C-TERMINAL CAP1-ADENYLYL CYCLASE ASSOCIATED PROTEIN

1K8F の概要

• エントリーDOI: 10.2210/pdb1k8f/pdb
• 関連するPDBエントリー: 1K4Z
• 分子名称: ADENYLYL CYCLASE-ASSOCIATED PROTEIN (1 entity in total)
• 機能のキーワード: cap, cap1, adenylyl cyclase associated protein, actin binding, structural genomics, psi, protein structure initiative, new york sgx research center for structural genomics, nysgxrc, unknown function
• 由来する生物種: Homo sapiens (human)
• タンパク質・核酸の鎖数: 4
• 化学式量合計: 69447.65

構造登録者

Patskovsky, Y.V.,Chance, M.,Almo, S.C.,Burley, S.K.,New York SGX Research Center for Structural Genomics (NYSGXRC) (登録日: 2001-10-24, 公開日: 2003-07-01, 最終更新日: 2023-08-16)

主引用文献

Dodatko, T.,Fedorov, A.A.,Grynberg, M.,Patskovsky, Y.,Rozwarski, D.A.,Jaroszewski, L.,Aronoff-Spencer, E.,Kondraskina, E.,Irving, T.,Godzik, A.,Almo, S.C.
Crystal structure of the actin binding domain of the cyclase-associated protein.
Biochemistry, 43:10628-10641, 2004

PubMed Abstract: Cyclase-associated protein (CAP or Srv2p) is a modular actin monomer binding protein that directly regulates filament dynamics and has been implicated in a number of complex developmental and morphological processes, including mRNA localization and the establishment of cell polarity. The crystal structure of the C-terminal dimerization and actin monomer binding domain (C-CAP) reveals a highly unusual dimer, composed of monomers possessing six coils of right-handed beta-helix flanked by antiparallel beta-strands. Domain swapping, involving the last two strands of each monomer, results in the formation of an extended dimer with an extensive interface. This structural and biochemical characterization provides new insights into the organization and potential mechanistic properties of the multiprotein assemblies that integrate dynamic actin processes into the overall physiology of the cell. An unanticipated finding is that the unique tertiary structure of the C-CAP monomer provides a structural model for a wide range of molecules, including RP2 and cofactor C, proteins involved in X-linked retinitis pigmentosa and tubulin maturation, respectively, as well as several uncharacterized proteins that exhibit very diverse domain organizations. Thus, the unusual right-handed beta-helical fold present in C-CAP appears to support a wide range of biological functions.

PubMed: 15311924
DOI: 10.1021/bi049071r

実験手法

X-RAY DIFFRACTION (2.8 Å)