ß2-microglobulin (ß2m)

 Apparently normal
 Fertile
 Normal distribution of gamma delta, CD4+8+ and CD4+8- T cells
 Normal development of functional TCR(+)-alpha beta CD8+ CTLs in response to tumor cell injection
 Little if any functional MHC I
 No detectable class I antigens
 Gross deficiency in CD4-CD8+ T cells
 Defective CD4-8+ T cell-mediated cytotoxicity
 Massive intraperitoneal accumulation of highly lytic CD8+ CTLs after intraperitoneal injection of tumor cells
 Delayed tumor cell rejection
 Ability to resolve low dose of Listeria monocytogenes

 Exacerbated clinical course of L. monocytogenes infection
 Delayed clearance

 Impaired vaccine-induced immunity
 Impaired antigen-induced IFN-gamma secretion
 Rejection of MCH I-deficient hemopoeitic transplants by normal mice

Koller et al., 1990
Zijlstra et al., 1990
Bix et al., 1991
Apasov and Sitkovsky et al., 1994
Ladel et al., 1994


METHODOLOGY ( FROM T-BASE)

( (beta2m))

Line Name DNA Construct
1. beta2-m (-/-) and N Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
2. beta2-m (+/-) and N Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
3. beta2m (+/-) and T. Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
4. beta2-microglobulin Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
5. beta2-microglobulin Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
6. beta2-microglobulin Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
7. beta2m (-/-) Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
8. beta2-m (-/-) and t Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
9. beta2-m (+/-) and t Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
10. beta2m (-/-) and T. Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
11. beta2-m (+/-) and V Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
12. beta2-m (-/-) and V Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
13. beta2-m (-/-) & tu Plasmid pKCbeta2B contains the entire beta2m (beta2-microglobulin) gene within an 8.4-kbp XhoI fragment. The 5' XhoI-BamHI fragment of....
14. beta2-m (-/-) & L.


Database links

OMIM MEDLINE Citations Protein Links Gene Map GDB MEDLINE Neighbors