Results 131 to 140 of about 14,075,605 (174)

[Localization of beta-n-acetylhexosaminidase in stallion epididymis (author's transl)].

Acta histochemica, 1982
The localization of beta-N-acetylhexosaminidase activity in 6 different segments of the epididymis was investigated in 8 stallions using biochemical and histochemical methods. The highest enzyme activity was found in segment D while the other segments displayed a much weaker reaction There was no or only low enzyme activity present in the epididymal ...
R, Skolek-Winnisch, W, Lipp, W, Stöckl, E, Bamberg   +3 more
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Purification and characterization of beta-N-acetylhexosaminidase I from human placenta.

Journal of biochemistry, 1989
beta-N-Acetylhexosaminidase (hexosaminidase) I, which has an intermediate charge character between those of hexosaminidases A(alpha beta 2) and B[beta beta)2), was purified 1,500-fold from human placenta by procedures including chromatographies on concanavalin A (Con A)-Sepharose and an immunoadsorbent column.
K, Kinoshita, N, Taniguchi, A, Makita, M, Narita, K, Oikawa   +4 more
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Beta-N-acetylhexosaminidase activity in human preimplantation embryos

1992
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Sermon, Karen, Lissens, Willy, Tarlatzis, Basil, Braude, P., Devroey, Paul, Van Steirteghem, Andre, Liebaers, Ingeborg   +6 more
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β-N-Acetylhexosaminidase Active on Dermatan Sulfate

Enzyme, 2017
The dodecasaccharide obtained by treating dermatan sulfate with testicular hyaluronidase, chondroitinase AC, and β-glucuronidase was incubated with diluted, normal human serum at pH 4.5 or 7.0 followed by chondro-4-sulfatase at pH 7.0. Analyses of the reaction products indicate release of hexosamine but not further degradation of the substrate. It is
J, Singh, G V, Coppa, N, Di Ferrante
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Evidence for the regulation of β-N-acetylhexosaminidase expression during pregnancy in the rat

Biochimica et Biophysica Acta (BBA) - General Subjects, 2000
It is believed that the lysosomal glycohydrolase beta-N-acetylhexosaminidase plays a part in several important processes of reproduction and it has been postulated that this enzyme is subject to hormonal regulation. During pregnancy, activity levels of the enzyme are strongly increased in both human and rat serum.
TANCINI, Brunella, EMILIANI, Carla, MENCARELLI, Simona, CAVALIERI, Cristina, STIRLING JL, ORLACCHIO, Aldo   +5 more
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Beta-N-acetylhexosaminidase in the splen of a patient with hairy-cell leukaemia.

1990
he spleen from a patient with hairy-cell leukaemia had beta-N-acetylhexosaminidase activity that could be resolved into three isoenzymes by chromatography on phenyl boronate agarose. Two of these were the major forms, A and B, found in normal tissues but, in addition, there was an 'extra' form that accounted for 15% of total activity.
EMILIANI, Carla, Sciarra R., ORLACCHIO, Aldo, Stirling J. L.   +3 more
openaire   +1 more source

[Screening of beta-N-acetylhexosaminidase forming strains and conditions for enzyme production].

Wei sheng wu xue bao = Acta microbiologica Sinica, 1990
About 1200 strains of microorganisms were screened including fungi, actinomyces, and bacteria, in which 237 strains producing the enzyme desired. The results showed that the beta-GlcNAcase and beta-GalNAcase always co-existed in one strain, though may be in different ratio.
Z Z, Yan, Y, Tao, X L, Cheng, J W, Sun, S Z, Zhang   +4 more
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Rabbit liver beta-N-acetylhexosaminidases: Purification, physical properties and substrate specificity.

2009
Abstract not available.
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Blood testosterone levels are correlated with beta-N-acetylhexosaminidase activity in human caput epididymis.

Biochemistry and molecular biology international, 1993
beta-N-acetylhexosaminidase exhibits a relatively high activity in human epididymis. Its isoenzymatic profile and immunological properties led us to conclude that the increased activity was not due to the expression of an isoform unrelated to the HEX A and B present in other human tissues.
A, Datti, T, Beccari, C, Emiliani, J L, Stirling, A, Orlacchio   +4 more
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Purification and characterization of beta-N-acetylhexosaminidases and beta-galactosidase from Streptococcus 6646 K.

Journal of biochemistry, 1976
Three beta-N-acetylhexosaminidases [EC 3.2.1.52] and one beta-galactosidase [EC 3.2.1.23] were purified from the culture filtrate of streptococcus 6646 group K by a combination of column chromatographies on p-aminophenyl beta-D-thiogalactopyranoside-substituted Sepharose and N-(paminophenyl)oxamic acid-substituted Sepharose.
T, Kiyohara, T, Terao, K, Shioiri-Nakano, T, Osawa   +3 more
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