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Auburn University2, Auburn, Alabama 36830
Abstract
The ultraviolet absorption spectrum of the cold acid-soluble portion of the blood of steers had a maximum absorption at 297 nanometers. This unusual spectrum was due to the large amount of uric acid riboside that was present. It accounted for over 96% of the material absorbing at 290 nm and for about 50% of the material absorbing at 260 nanometers. Other ultraviolet absorbing compounds present in the acid-soluble fraction were uric acid, AMP, NADP, ADP, uric acid ribotide, ATP, GTP, UTP and unidentified compounds of UDP.
1 This investigation was supported by Hatch and State funds of Auburn University Agricultural Experiment Station.
2 Department of Animal and Dairy Sciences.
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