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. 2021 Aug 26;11:740083. doi: 10.3389/fonc.2021.740083

Figure 1.

Figure 1

Family trees and BcR IG characteristics of familial CLL cases. (A) Family 1 consists of two brothers and two sisters who carry mutated IGHV genes. (B) Family 2 consists of two brothers who both carry unmutated IGHV genes. (C) Family 3 consists of two brothers and two sisters. In all four siblings, the CLL clone utilizes the IGLV3-21*04 gene with the characteristic R110 mutation and the K16 and YDSD motifs. Additionally, siblings 3B and 3C express similar IGHV genes, i.e. IGHV3-21 and IGHV3-48, and belong to stereotyped subsets #2 and #169, respectively.