Title : Transformation of BALB3T3 cells caused by over-expression of rat CD98 heavy chain (HC) requires its association with light chain: mis-sense mutation in a cysteine residue of CD98HC eliminates its transforming activity.

Pub. Date : 2000 Aug 1

PMID : 10897033






4 Functional Relationships(s)
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1 Transformation of BALB3T3 cells caused by over-expression of rat CD98 heavy chain (HC) requires its association with light chain: mis-sense mutation in a cysteine residue of CD98HC eliminates its transforming activity. Cysteine solute carrier family 3 member 2 Homo sapiens
2 In this study, we established and analyzed BALB3T3 clones transfected with cDNAs encoding wild-type and mutated rat CD98HC proteins designated as BrH/Wild, C103S, C325S and 103/325, in which 103 and/or 325 cysteine were intact or replaced with serine. BR-HIBO solute carrier family 3 member 2 Homo sapiens
3 Immunoprecipitation with B3 revealed that exogenous rat CD98HC proteins were associated with endogenous mouse CD98LC by a disulfide bond in BrH/Wild and C325S, but not in C103S and 103/325 transfectants. Disulfides solute carrier family 3 member 2 Homo sapiens
4 These findings indicate that over-expression of CD98HC and its disulfide-linkage with CD98LC at the cell surface result in malignant transformation of murine fibroblasts. Disulfides solute carrier family 3 member 2 Homo sapiens