Nucleic Acids Research, 1975, Vol. 2, No. 12 2329-2342
© 1975
Articles |
Yeast phenylalanine transfer RNA: atomic coordinates and torsion angles
Department of Biology, Massachusetts Institute of Technology Cambridge, MA 02139, USA
Received November 7, 1975.
The atomic coordinates of yeast phenylalanine transfer RNA (tRNA) as well as the torsion angles of the polynucleotide chain are presented as derived from an x-ray diffraction analysis of orthorhombic crystals. A comparison is made between the coordinates obtained from analysis of monoclinic crystals of the same material. It is concluded that the molecule has substantially the same form in the orthorhombic and the monoclinic lattices, except for differences found between residues at the 3' end of the polynucleotide chain. A number of observations are made concerning hydrogen bonding interactions which may account for many of the residues conserved in all tRNA sequences.
*Present address: Dept. of Biochemistry, Institute of Dental Research Univ. of Alabama Medical Center, Birmingham, Alabama 35294
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