{'fraction_non_alphanumeric': 0.02411764705882353, 'fraction_numerical': 0.013529411764705882, 'mean_word_length': 5.276752767527675, '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}}
Carbohydrate Components of Influenza C Virions

The carbohydrate components of influenza C virions grown in chicken kidney (CK) cells were analyzed by gel filtration following exhaustive digestion with Pronase. The [3H]glucosamine-labeled glycopeptides were larger and more heterogeneous than those of influenza A/WSN virions; three major size classes (G1, G2, and G3) were resolved. Treatment with Vibrio cholerae neuraminidase caused a decrease in size of G1 and G2, along with release of about 16% of the 3H label. The released sugar components were identified as N-acetylneuraminic acid by thin-layer chromatography. Peak G3 was highly labeled with [3H]mannose, whereas G1 and G2 contained lower levels of mannose. The three major viral glycoproteins gp88, gp65, and gp30 were isolated from sodium dodecyl sulfate-polyacrylamide gels, and their glycopeptide components were analyzed after Pronase digestion. The three size classes of glycopeptides were obtained from any of the three glycoproteins; however, the relative amounts of the three components varied among the glycoproteins. Host cell-derived components, which appear to be mucopolysaccharides and glycoproteins, were found associated with influenza C virions grown in CK cells. These components contained glycopeptides that were mainly of sizes similar to peak G2 from influenza C virions. Previous studies have shown that influenza A/WSN virus grown in several cell types contained only two size classes of glycopeptides. Two size classes comparable to peaks G2 and G3 from influenza C virions were also observed in influenza A/WSN grown in CK cells. Thus the large G1 glycopeptides appear to be characteristic of influenza C virions.