{'fraction_non_alphanumeric': 0.03008595988538682, 'fraction_numerical': 0.050143266475644696, 'mean_word_length': 4.825, '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}}
An estimate of the recombination frequency between the B locus and the D locus within the major histocompatibility complex.

Mixed leukocyte culture studies on 120 families, including 120 HLA haplo-identical siblings and 210 HLA-identical siblings, were analyzed for unusual patterns of reactivity. Three discrepant reactions were noted in which cells from HLA-identical siblings showed strong mutual stimulation. These data provide an estimate of 0.0065 as the recombination frequency between the HLA-B and HLA-D regions of the major histocompatibility chromosome in man. When combined with the data of Keuning et al. (1975), the value is 0.0068 with a 95% confidence interval of 0.0022 to 0.0158.