Tris maleate Cas: 72200-76-1 99.5% Dawb crystalline hmoov
Catalog Number | xwm 90057 |
Khoom npe | Tris mas |
CAS | 72200-76-1 |
Molecular Formula | C4H11NO3 · C4H4O4 |
Molecular Luj | 237.21 Nws |
Cov ntaub ntawv khaws cia | Ambient |
Harmonized tariff Code | 29221985 ib |
Khoom Specification
Qhov tshwm sim | Dawb crystalline hmoov |
Assay | ≥ 99.5% |
Cocrystallization ntawm lysyl-tRNA synthetase los ntawm Thermus thermophilus nrog nws cognate tRNAlys thiab nrog Escherichia coli tRNAlys.
Lysyl-tRNA synthetase los ntawm Thermus thermophilus tau cocrystallized nrog nws cov cognate tRNAlys los yog Escherichia coli tRNAlys siv ammonium sulfate ua precipitant.Cov muaju loj hlob los ntawm cov kev daws teeb meem uas muaj 1: 2.5 stoichiometry ntawm synthetase dimer rau tRNA hauv 18-22% ammonium sulfate hauv 50 mM Tris-maleate tsis nyob ntawm pH 7.5.Ob lub complexes tsim square prismatic, tetragonal crystals nrog heev zoo tib yam chav tsev cell tsis (a = b = 233 A, c = 119 A) thiab diffrat mus rau tsawg kawg yog 2.7 A daws teeb meem.Txawm li cas los xij, homocomplex yog ntawm pawg chaw P42(1)2 thiab heterocomplex ntawm qhov chaw pab pawg I422.