Figure 4

Phylogenetic relationships between the human ZNF genes from 8q24.3, their murine orthologs and other human ZNF genes. The analysis relied on alignments of full nucleotide cDNA sequences (A), of whole polypeptide sequences (B), of the array of all C2H2 zinc finger domains of each protein and of the KRAB domains using the neighbor-joining method. The analysis also included Xenopus Xfin as a distant outlier and as reference group seven KRAB-ZNFs from human 19q13.2 and eight KRAB-ZNFs from other genomic locations. Numbers indicate bootstrap values in percent based on 1000 replicates. To the right of the different clades the genomic localizations of the human genes are given. Note that the two KRAB domains of presumable pseudogenes (krab A1B1, krab A2B2) within 8q24.3 as well as an artificially combined human ZNF252 KRAB domain (labeled "art") have been added; see text for more details. Since the ZNF16 ortholog cDNAs from mouse and rat do most likely not give rise to a functional protein, protein sequences were not included in the analyses. The full nucleotide and protein sequences are given in Additional files 1 and 2, respectively.