{'fraction_non_alphanumeric': 0.019404915912031046, 'fraction_numerical': 0.0038809831824062097, 'mean_word_length': 5.2926829268292686, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
Evolution of the conventional actin capping protein Cap

CapZ, the heterodimeric cytoplasmic actin-capping protein, caps the barbed-end of the Arp1 mini-filament. Because of their ubiquitous cytoplasmic function, the CapZ subunits Capα (Cap1) and Capβ (Cap2) have also been found in plants and algae that do not contain any other dynactin subunit. CapZ homologs have been found in all available eukaryotes except the diatom Thalassiosira pseudonana. The reason is unknown but unlikely to be an unexpectedly large divergence because homologs were identified in the closely related species Fragilariopsis cylindrus and Phaeodactylum tricornutum. The reason could be a gap in the genome assembly although it is unlikely that both capping proteins were missing because of gaps.