The lectin isolated from Sophora japonica seeds is a glycoprotein which binds oligosaccharides with nonreducing terminal GalP(1+3/4)GlcNacpl --t units. The carbohydrate moiety of the lectin is composed of fucose, xylose, mannose and N-acetylglucosamine. The major glycopeptide of the lectin, prepared by pronase digestion, was derivatized with fluorescein isothiocyanate, purified by PAGE and examined by exoglycosidase digestion as well as purified by gel filtration through Bio-Gel P6-DG and investigated by methylation analysis and 400-MHz 'H-NMR spectroscopy. The primary structure of the glycopeptide was established to be as follows.

No abstract

No abstract

VOLUME 15, NUMBER 12 PHYSICAL REVIEW LETTERS 20 SEPTEMBER 1965 1.7 1.9 2.1 2.3 MassU-Tr-p) (BeV) 2.5 2.7FIG. 2. (a) Mass of ir~ir + p. (b) Mass of 7r -TT-i >.cay dominantly into any lower mass resonance. The kinetic energies of the proton, TF + and 7r°, were calculated in the center of mass 7T + 77°/) system. The Dalitz plots of the kinetic energy of the if versus the kinetic energy of the proton and the n° versus 7r + were plotted for the events with a TT + TI 0 P mass between (a) 1.65 and 1.69 BeV, (b) 1.69 and 1.725 BeV (the enhancement region), and (c) 1.725 and 1.765 BeV, for the unlikely possibility that a sudden change would occur when passing through the enhancement region. No difference was observed, as was expected due to the complex-ity of the final state.There is no sudden change in the distribution of momentum transfer to the 7r + Tr°p system when the TT + TT°P mass goes through the enhancement region, either. Thus, the only evidence for a resonance is an enhancement in the mass plot of the TT + 7i°p system. Experiments involving the same reaction at neighboring energies have not found any evidence for this enhancement; however, on the basis of their data on the ir + p total cross section, Devlin, Solomon, and Bertsch 1 have recently suggested the existence of a T = § pionnucleon resonance at 1.65 BeV with a width of 0.2 BeV. Their mass is only slightly lower than ours, but their width is much greater.We present in this Letter a tabulation of the rates for the annihilation of antiprotons at rest in hydrogen into various two-body channels. The tabulation is based on an analysis of 9301 two-pronged and 16 700 four-pronged pionic annihilations, and 6768 kaonic annihilations obtained from an exposure of the Columbia-Brookhaven National Laboratory 30-in. hydrogen bub-ble chamber to a separated low-energy antiproton beam at the Brookhaven AGS. The details of the analyses on which this tabulation is based are presented in a series of articles which will be published in the near future. The results are presented in Table I.The fraction of annihilations from the P wave of the pp system was estimated using arguments 532