1. Nomenclature for factors of theHLA system, 1991

   • J. G. Bodmer
   • E. D. Albert
   • P. I. Terasaki

   Nomenclature Pages: 135 - 148

2. Coordinate change in phenotype in a mouse cell line selected forCD8 expression

   • Robert Hyman
   • Valerie Stallings

   Original Articles Pages: 149 - 156

3. Comparative mapping ofIGHG, IGHM, FES, andFOS in domestic cattle

   • Tammy C. Tobin-Janzen
   • James E. Womack

   Original Articles Pages: 157 - 165

4. Reptilian class I major histocompatibility complex genes reveal conserved elements in class I structure

   • Dario Grossberger
   • Peter Parham

   Original Articles Pages: 166 - 174

5. Genomic organization and chromosomal location of the human gene encoding the B-lymphocyte activation antigen B7

   • Annamalai Selvakumar
   • Bhaskara K. Mohanraj
   • Bo Dupont

   Original Articles Pages: 175 - 181

6. Definition of microsatellite size variants forTnfa andHsp70 in autoimmune and nonautoimmune mouse strains

   • Chaim O. Jacob
   • Frances Hwang

   Original Articles Pages: 182 - 188

7. Tcrb-V3⁺3T-cell deletion and a new mouse mammary tumor provirus,Mtv-44

   • Sue Fairchild
   • Oliver A. Rosenwasser
   • Kyuhei Tomonari

   Original Articles Pages: 189 - 194

8. Important laboratory animal resources: selection criteria and funding mechanisms for their preservation

   • Committee on Preservation of Laboratory Animal Resources

   Original Articles Pages: 195 - 198

9. Plasma cell membrane glycoprotein genePca-1 (alkaline phosphodiesterase I) is linked to the proto-oncogeneMyb on mouse chromosome 10

   • Michael F. Buckley
   • James W. Goding

   Gene-antigen Register Pages: 199 - 201

10. Gene duplications and sequence polymorphism of bovine class IIDQB genes

    • S. Sigurdardóttir
    • C. Borsch
    • L. Andersson

    Erratum Pages: 202 - 202