LB198

DNA repair deficiency studies

Human lymphocytes, Trichothiodystrophy heterozygote, EBV-transformed

LB198 has been derived from mononuclear cells from peripheral blood of a 45 year old female. The cells have been transformed with EBV. The patient has been shown to be heterozygote for trichothiodystrophy (TTD) and is the parent of LB199 (Sigma Catalogue number.98062321) TTD is a rare genetic disorder with deficiency in excision repair of UV damage. Fibroblasts from the same individual have been designated TTD HM 1BR.

Maintain cultures between 3-9 x 100,000 cells/ml, dilute every 1-2 days to 3 x 100,000 cells/ml; 5% CO₂, 37°C. Cells form floating aggregates.

RPMI 1640 + 4mM Glutamine + 200 μg/ml Sodium Pyruvate (NaPy) + 15% Heat Inactivated (HI-FBS).

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