Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Limei Hsu Jones"'
Publikováno v:
Biochemistry. 45:13276-13283
Tryptophan tryptophylquinone (TTQ), the prosthetic group of methylamine dehydrogenase, is formed by post-translational modifications of two tryptophan residues that result in the incorporation of two oxygens into one tryptophan side chain and the cov
Autor:
Arwen R. Pearson, Paul A. Grimsrud, Sudha Marimanikkupam, M. Elizabeth Graichen, Sean A. Agger, Carrie M. Wilmot, Limei Hsu Jones, Yongting Wang, Teresa De la Mora-Rey, Victor L. Davidson
Publikováno v:
Biochemistry. 43:5494-5502
Paracoccus denitrificans methylamine dehydrogenase (MADH) is an enzyme containing a quinone cofactor tryptophan tryptophylquinone (TTQ) derived from two tryptophan residues (betaTrp(57) and betaTrp(108)) within the polypeptide chain. During cofactor
Publikováno v:
Journal of Biological Chemistry. 278:47269-47274
The type I copper center of amicyanin was replaced with a binuclear CuA center. To create this model CuA protein, a portion of the amino acid sequence that contains three of the ligands to the native type I copper center of Paracoccus denitrificans a
Autor:
LeeAnn Higgins, Victor L. Davidson, Arwen R. Pearson, Alison E. Ashcroft, Limei Hsu Jones, Carrie M. Wilmot
Publikováno v:
Biochemistry. 42:3224-3230
Cofactors made from constitutive amino acids in proteins are now known to be relatively common. A number of these involve the generation of quinone cofactors, such as topaquinone in the copper-containing amine oxidases, and lysine tyrosylquinone in l
Publikováno v:
Protein Engineering, Design and Selection. 14:675-681
Site-directed mutagenesis was used to alter active-site residues of methylamine dehydrogenase (MADH) from Paracoccus denitrificans. Four residues of the beta subunit of MADH which are in close proximity to the tryptophan tryptophylquinone (TTQ) prost
Publikováno v:
Biochemistry. 39:8830-8836
Methylamine dehydrogenase (MADH) and amicyanin form a physiologic complex which is required for interprotein electron transfer. The crystal structure of this protein complex is known, and the importance of certain residues on amicyanin in its interac
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Bioenergetics. 1457(1-2):27-35
A Pathways analysis of the methylamine dehydrogenase–amicyanin–cytochrome c -551i protein electron transfer (ET) complex predicts two sets of ET pathways of comparable efficiency from the type I copper of amicyanin to the heme of cytochrome c -55
Publikováno v:
Biochemistry. 37:7371-7377
Conversion by site-directed mutagenesis of Phe 97 of amicyanin to Glu significantly decreases the rate constant for the electron-transfer reaction from the quinol form of methylamine dehydrogenase to amicyanin. It is shown that the DeltaG degrees and
Autor:
F. S. Mathews, Pappannan Thiyagarajan, Limei Hsu Jones, Paul Langan, Narayanasami Sukumar, Benno P. Schoenborn, Victor L. Davidson
Publikováno v:
Acta Crystallographica Section D Biological Crystallography. 61:640-642
Crystals of the blue copper protein amicyanin suitable for neutron diffraction were grown by the sitting-drop method, followed by repeated macroseeding using solutions prepared with D{sub 2}O. Although the crystal sizes were the same, crystals grown
Autor:
Victor L. Davidson, Limei Hsu Jones
Publikováno v:
Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 1252:146-150
Phenylhydrazine has previously been shown to be an irreversible inactivator of the tryptophan tryptophylquinone (TTQ) enzyme methylamine dehydrogenase [Davidson, V.L. and Jones, L.H. (1992) Biochim. Biophys. Acta 1121, 104-110]. Structure-reactivity