1. 1. Shimizu A & Honjo T Cell 36, 801 803 (1984) 2. Marcu K B Cell 29, 719-721 (1982) 3. Shimizu A Takahashi N Yaoita Y & Honjo T Cell 28, 499 506 (1982) 4. Burrows P D Beck G B & Wabl M R Proc natn Acad Sei USA 78, 564 568 (1981) 5. Burrows P D Beck Engeser G B & Wabl M R Nature 306, 243-246 (1983) 6. Jack H M McDowell M Steinberg C M & Wabl M Proc natn Acad Sei USA 85,1581 1585 (1988) 7. Fujimoto S & Yamagishi H Nature 327, 242 243 (1987) 8. Okazaki K Davis D D & Sakano H Cell 49, 477 485 (1987) 9. Okazaki K & Sakano H EMBO J 7,1669 1674 (1988) 10. Abe M & Shiku H Nucleic Acids Res 17,163 170 (1989) 11. Toda M Hirama T Takeshita S & Yamagishi H Immun Lett 21, 311 316 (1989) 12. McCormack W T ei al Cell 56, 785 791 (1989) 13. Kearney J F & Lawton A R J Immun 115, 671 681 (1975) 14. Pernis B Forni L & Luzzati A L Cold Spring Harb Symp quant Biol 41,175 183 (1976) 15. Wabl M R Form L & Loor F Science 199,1078 1080 (1978) 16. Griffin B E Bjorck E Bjursell G & Lmdahl T J Virol 40,11 19 (1981) 17. Carroll S M er Molec cell Biol 7,1740 1750 (1987) 18. Kataoka T Miyata T & Honjo T Cell 23, 357-368 (1981) 19. Sakano H Maki R Kurosawa Y Roeder W & Tonegawa S Nature 286, 676 683 (1980) 20. Obata M ef Proc natn Acad Sei USA 78, 2437 2441 (1981) 21. Tilley S A & Birshtem B K J exp Meu 162, 675 694 (1985) 22. Altiok E et Proc natn Acad Sei USA 86, 6333 6337 (1989) 23. Durdik J et Proc natn Acad Sei USA 86, 2346 2350 (1989) 24. Wabl M Meyer J Beck Engeser G Tenkhoff M & Burrows P D Nature 313,687 689 (1985) 25. Kindt T J Mandy W J & Todd C W Biochemistry 9, 2028 2032 (1970) 26. Landucci Tos; Mage R G & Dubiski S J Immun 104, 641 647 (1970) 27. Kmght K L & Hanly W C Contemp Top molec Immun 4. 55 58 (1975) 28. Pernis B et al Immunochemistry 10, 281-285 (1973) 29. Gearhart P J Hurwitz J L & Cebra J J Proc natn Acad Sei USA 77, 5424-5428 (1980) 30. Seldm M F Howard T A & D Eustachio P Genomics 5, 24-28 (1989) 31. Alt F W & Yancopoulos G D Nature 327,189-190 (1987)