EZZ (TOU II-4)

Human B cell lymphocyte, EBV transformed

Peripheral blood lymphocytes from a male Tunisian, immortalised by EBV transformation. The cell line contains the following deletions, at the homozygous state, in the human immunoglobulin heavy chain constant region locus (IGH chromosome 14q32.3): deletion I (del G1-EP1-A1-GP-G2-G4) Gm-Am genotype Gm b; -; -A2m2/Gm b ; -; -A2m2. Gm allotypes are indicated in the order G3m; G1m; G2m. The absence of G1m and G2m allotypes due to the deletion of the IGHG1 and IGHG2 genes is indicated by (-). The EZZ deletion (deletion I), which encompasses 160 kb involves two highly homologous regions located 13 kb downstream of IGHG3 and 13 kb downstream of IGHG4.

Maintain cultures at 5-9x100,000 cells/ml; 5% CO₂; 37°C.

RPMI 1640 + 2mM Glutamine + 10% Foetal Bovine Serum (FBS).

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This cell line is part of the European Collection of Authenticated Cell Cultures (ECACC), an international repository managed by the United Kingdom Health Security Agency (UKHSA). No licensing agreement is required when either this cell line or the DNA extracted from it are used for internal research purposes only. Any other use of these products is prohibited without the express written permission of UKHSA. Inquiries regarding authorized use of this cell line or its genomic DNA may be directed to culturecollections@ukhsa.gov.uk.