Crystallization and preliminary X-ray diffraction analysis of the middle domain of Paip1.
The poly(A)-binding protein (PABP) simultaneously interacts with the poly(A) tail of mRNAs and the scaffolding protein eIF4G to mediate mRNA circularization, resulting in stimulation of protein translation. PABP is regulated by the PABP-interacting protein Paip1. Paip1 is thought to act as a translational activator in 5' cap-dependent translation by interacting with PABP and the initiation factors eIF4A and eIF3. Here, the crystallization and preliminary diffraction analysis of the middle domain of Paip1 (Paip1M), which produces crystals that diffract to a resolution of 2.2 A, are presented.
Department of Biochemistry, McGill University, Montréal, Québec, Canada.
Ahmad Seif
AS
Kanaan
Filipp
F
Frank
Chelsea
C
Maedler-Kron
Karan
K
Verma
Nahum
N
Sonenberg
Bhushan
B
Nagar
D003460:Crystallization; D018360:Crystallography, X-Ray; D006801:Humans; D010448:Peptide Initiation Factors / Q000737:chemistry*; D017434:Protein Structure, Tertiary; D016601:RNA-Binding Proteins / Q000737:chemistry*
C111580:PAIP1 protein, human; D010448:Peptide Initiation Factors; D016601:RNA-Binding Proteins