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Derivation
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The CRL-1621cell line is reported to be positive for Epstein-Barr nuclear antigen (EBNA +) and Epstein-Barr viral capsid antigen (EBVCA +). Since the HMy2.CIR cell line was derived from the HMy.2 B lymphoblastoid cell line, a fast growing mutant of the ARH-77 cell line ( ATCC CRL-1621), it is assumed to be EBNA positive. The HMy2.CIR cell line was derived from the HMy.2 B lymphoblastoid cell line, a fast growing mutant of the ARH-77 cell line ( ATCC CRL-1621), by gamma irradiation and selection for loss of HLA class I antigen expression.
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Comments
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The CRL-1621cell line is reported to be positive for Epstein-Barr nuclear antigen (EBNA +) and Epstein-Barr viral capsid antigen (EBVCA +). Since the HMy2.CIR cell line was derived from the HMy.2 B lymphoblastoid cell line, a fast growing mutant of the ARH-77 cell line ( ATCC CRL-1621), it is assumed to be EBNA positive. The HMy2.CIR cell line was derived from the HMy.2 B lymphoblastoid cell line, a fast growing mutant of the ARH-77 cell line ( ATCC CRL-1621), by gamma irradiation and selection for loss of HLA class I antigen expression. The cells express no HLA A or B locus products, but do express small amounts of HLA Cw4. The cells are useful as host for transfected class I major histocompatibility antigen genes.
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