2tmd
From Proteopedia
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CORRELATION OF X-RAY DEDUCED AND EXPERIMENTAL AMINO ACID SEQUENCES OF TRIMETHYLAMINE DEHYDROGENASE
Overview
The amino acid sequence of the iron-sulfur-flavoprotein, trimethylamine, dehydrogenase, isolated from the bacterium W3A1 has been deduced from the, x-ray diffraction pattern obtained at 2.4-A resolution. This sequence has, been compared to portions of the primary sequence derived by gas-phase, sequencing of isolated peptides obtained from cyanogen bromide and, endoprotease Arg-C and Asp-N digestions of the purified enzyme. A, consensus sequence has resulted and is comprised of 729 amino acids with, Ala at both NH2- and COOH-terminal positions. The consensus sequence, contains 13 cysteine residues. Approximately 80% of the sequence has been, confirmed by direct sequencing with approximately 81% agreement with the, x-ray deduced sequence. The calculated subunit molecular mass of the, apoenzyme is 78,899 Da, in good agreement with published values of, approximately 83,000. The anomalous scattering map from the native protein, has also been shown to provide accurate information about the positions of, most of the weak anomalous scattering centers such as sulfur or phosphorus, atoms and to complement x-ray or chemical sequencing methods.
About this Structure
2TMD is a Single protein structure of sequence from Methylophilus methylotrophus w3a1 with SF4, FMN and ADP as ligands. Active as Trimethylamine dehydrogenase, with EC number 1.5.8.2 Full crystallographic information is available from OCA.
Reference
Correlation of x-ray deduced and experimental amino acid sequences of trimethylamine dehydrogenase., Barber MJ, Neame PJ, Lim LW, White S, Matthews FS, J Biol Chem. 1992 Apr 5;267(10):6611-9. PMID:1551870
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