... level of the hasoperon containing the hyaluronan synthase gene or theprotein level of hyaluronan synthase. Solubilization of theenzyme from membranes of MU -treated cells and addition of the ... n-dodecyl-b-D-maltoside;GlcNAc, N-acetylglucosamine; GlcUA, glucuronic acid; HA, hyaluronan (hyaluronic acid); HABP, hyaluronan binding protein;HAS (Has), hyaluronan synthase; MU, 4-methylumbelliferone;spHAS, S. pyogenes ... regulation of tumour-associated hyaluronan. CIBA Found. Symp 13, 150–159.5. Kosaki, R., Watanabe, K. & Yamaguchi, Y. (1999) Over-production of hyaluronan by expression of the hyaluronan synthase...