LITERATURE 135 



Umbarger, H. E. and B. Magasanik, (1951) J. Biol. Chem., i8g, 287, 



Umbarger, H. E. and J. H. Mueller, (1951) J. Biol. Chem., i8g, 277. 



Utter, M. F. and K. Kurahashi, (1954a) J. Biol. Chem., 2oy, 787. 



Utter, M. F. and K. Kurahashi, (1954b) J. Biol. Chem., 20J, 821. 



Utter, M. F., K. Kurahashi and I. A. Rose, (1954) J. Biol. Chem., 207, 803. 



Veiga-Salles, J. B. and S. Ochoa, (1950) J. Biol. Chem., i8y, 849. 



Velick, S. F. and p. Strittmatter, (1956) J. Biol. Chem., 221, 265. 



Verhoeven, W., (1956) in Inorganic Nitrogen Metabolism, Johns Hopkins Press, Baltimore, 



p. 61. 

 Verhoeven, W. and Y. Takeda, (1956) in Inorganic Nitrogen Metabolism, Johns Hopkins 



Press, Baltimore, p. 159. 

 Villavicencio, M. and E. S. Guzman-Barron, (1955) Federation Proc, 14, 297. 

 ViRTANEN, A. I. AND P. LiNKO, (1955) Acta Chem. Scand., g, 531. 

 Virtanen, a. I. AND N. E. Saris, (1955) Acta Chem. Scand., g, 337. 

 ViSHNiAC, W. and S. Ochoa, (1952) J. Biol. Chem., igS, 501. 

 Vogel, H. J., (1956) J. Am. Chem. Sac, y8, 2631. 

 Vogel, H.J. AND D. M. Bonner, (1956) J. Biol. Chem., 218, 97. 

 Wainio, W. W. and S.J. CooPERSTEiN, (1956) Advanccs in Enzymol., ly, 329. 

 Wainwright, S. D., (1955) Biochim. et Biophys. Acta, 18, 583. 



Waisman, H. a., C. Monder and J. N. Williams, Jr., (1956) Cancer Research, 16, 344. 

 Walker, J. B., (1956) J. Biol. Chem., 221, 771. 

 Wang, T. P. and J. O. Lampen, (1952) J. Biol. Chem., ig4, 775. 



Wang, C. H., B. E. Christensen and V. H. Cheldelin, (1955) J. Biol. Chem., 213, 365. 

 Wang, C. H., J. W. Davis, V. H. Cheldelin and B. E. Christensen, (1954) Nature, 174, 



1 145. 

 Wang, T. P., H. Z. Sable and J. O. Lampen, (1950) J. Biol. Chem., 184, 17. 

 Warburg, O., (1956) Science, 123, 309. 



Warren, L. and J. G. Flaks, (1956) Federation Proc, 15, 379. 

 Webster, G. C. and J. E. Varner, (1955) Arch. Biochem. Biophys., 55, 95. 

 Weed, L. L. and D. W. Wilson, (1951) J. Biol. Chem., i8g, 435. 

 Weed, L. L. and D. W. Wilson, (1954) J. Biol. Chem., 207, 439. 

 Weinhouse, S. and B. Friedmann, (1951) J- Biol. Chem., igi, 707. 

 Weiss, U. and E. S. Mingioli, (1956) J. Am. Chem. Soc, 78, 2894. 

 Weiss, U., C. Gilvarg, and E. S. Mingioli and B. D. Davis, (1954) Science, iig, 774. 

 Weissbach, a. and B. L. Horecker, (1955) in Amino Acid Metabolisni, Johns Hopkins Press, 



Baltimore, p. 741. 

 Weissbach, A., B. L. Horecker and J. Hurwitz, (1956) J. Biol. Chem., 218, 795. 

 Wenner, C. E. and S. Weinhouse, (1956a) J. Biol. Chem., 2ig, 691. 

 Wenner, C. E. and S. Weinhouse, (1956b) J. Biol. Chem., 222, 399. 

 Werkheiser, W. C. and D. W. Visser, (1955) Cancer Research, 15, 644. 

 Westley, J. and J. Ceithaml, (1956) J. Biol. Chem., 2ig, 139. 

 Williams-Ashman, G., (1953) Cancer Research, 13, 721. 

 Whatley, F. R., M. B. Allen, L. L. Rosenberg, J. B. Capindale and D. I. Arnon, (1956) 



Biochim. et Biophys. Acta, 20, 462. 

 Whiteley, H. R., (1953) J. Am. Chem. Soc, 7^, 1518. 

 Wilson, A. T. and M. Calvin, (1955) J. Am. Chem. Soc, 77, 5948. 

 Wilson, L. G. and R. S. Bandurski, (1956) Arch. Biochem. Biophys., 62, 503. 

 Windsor, E., (1951) J- Biol. Chem., ig2, 607. 



WiNNiCK, T., F. Friedberg and D. M. Greenberg, (1948) J. Biol. Chem., 173, 117. 

 Wittenberg, J. and A. Kornberg, (1953) J. Biol. Chem., 202, 431. 

 Wong, D. T. O. and S. J. Ajl, (1956) J. Am. Chem. Soc, 78, 3230. 

 Woods, D. D., (1954) Chemistry and Biology of Pteridines, Little, Brown and Co., Boston, 



p. 220. 

 WosiLAiT, W. D. and a. Nason, (1954a) J. Biol. Chem., 208, 785. 

 WosiLAiT, W. D. AND A. Nason, (1954b) J. Biol. Chem., 206, 255. 

 WosiLAiT, W. D., A. Nason and A. J. Terrell, (1954) J. Biol. Chem., 206, 271. 



