{'fraction_non_alphanumeric': 0.02462121212121212, 'fraction_numerical': 0.001893939393939394, 'mean_word_length': 5.819354838709677, '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}}
Reversed phase HPLC of different membrane-bound variant surface glycoprotein preparations from Trypanosoma brucei brucei.

The chromatographic behaviour of the membrane-attached variant surface glycoprotein (mfVSG) of bloodstream forms of Trypanosoma brucei brucei AnTat 1.1 A preparations were studied by reversed phase high performance liquid chromatography (RP-HPLC). Among the different preparation procedures used, only the trifluoroacetic acid extraction gave a mfVSG preparation which was eluted from the RP-HPLC column. As well as for the soluble variant surface glycoprotein (sVSG) it was found that different mfVSG forms were eluted at different organic solvent concentrations from the RP-HPLC column. In addition, in preliminary studies, we have attempted to characterize the factors responsible for the trypanosome surface coat assembly. Using chromatographic techniques (RP-HPLC and thin layer chromatography), the results suggest a close relationship between the content of lipid-containing species and the heterogeneity of mfVSG preparation.