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	1.	Sites of switch recombination in IgG2b- and IgG2a-producing hybridomas. [electronic resource] by Katzenberg, D R Birshtein, B K Producer: 19880603 In: Journal of immunology (Baltimore, Md. : 1950) vol. 140 Availability: No items available. Save to lists Add to cart (remove)
	2.	Nucleotide sequence of an unequal sister chromatid exchange site in a mouse myeloma cell line. [electronic resource] by Katzenberg, D R Tilley, S A Birshtein, B K Producer: 19890623 In: Molecular and cellular biology vol. 9 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	3.	Site of unequal sister chromatid exchange contains a potential Z-DNA-forming tract. [electronic resource] by Weinreb, A Katzenberg, D R Gilmore, G L Birshtein, B K Producer: 19880303 In: Proceedings of the National Academy of Sciences of the United States of America vol. 85 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)
	4.	Mechanism of class switching. [electronic resource] by Birshtein, B K Katzenberg, D R Weinreb, A Giannini, S Bard, J Calvo, C F Martinez, N Producer: 19890613 In: Annals of the New York Academy of Sciences vol. 546 Online resources: Available from publisher's website Availability: No items available. Save to lists Add to cart (remove)

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