Zobrazeno 1 - 10 of 10 pro vyhledávání: '"Bela L. Toth-Martinez"'
1
β-Lactam susceptibility patterns and investigation of cephalosporin hydrolysing β-lactamases of Gram-negative extraintestinal clinical isolates
Autor: Ferenc Hernadi, Ferenc Rozgonyi, Dóra Szabó, Bela L. Toth-Martinez, Peter Kovacs, Zsuzsanna Gál
Publikováno v: International Journal of Antimicrobial Agents. 16:395-400
Of more than 3500 isolates of enterobacteriaceae, 48–69% were resistant to aminopenicillins and 11–45% to amoxycillin+clavulanic acid. Resistance to second and third generation cephalosporins was present in 11–17 and 3–8% of Escherichia coli
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a68cb311ac6cea87cdf73d235c8d090
https://doi.org/10.1016/s0924-8579(00)00190-4
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2
Use of chromatofocusing for separation of β-lactamases
Autor: Susanne Gál, Magdolna Frommer-Filep, Ferenc Hernadi, Bela L. Toth-Martinez, Andrea Tar, László Kiss
Publikováno v: Journal of Chromatography A. 403:217-224
Although still there are Klebsiella strains which do not harbour plasmids and produce constitutive chromosomal β-lactamases, recently clinical isolates were found in ever increasing numbers carrying mainly TEM-, CARB- and OXA type R-factors. We sele
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::276309d90855182478e163db576258d5
https://doi.org/10.1016/s0021-9673(00)96355-6
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3
Modified general affinity adsorbent for large-scale purification of penicillinases
Autor: Susanne Gál, Ferenc Hernadi, Andrea Tar, Bela L. Toth-Martinez, László Kiss
Publikováno v: Journal of Chromatography A. 448:109-116
N-Acetyl- d -(−)-penicillamine as a stable second-generation biospecific affinity ligand has previously been suggested for purification of Bacillus cereus 569/H β-lactamase I. A complex spacer arm is coupled with the matrix by using epichlorohydri
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f18a279c948db22a7256208e84b7196c
https://doi.org/10.1016/s0021-9673(01)84569-6
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6
Use of chromatofocusing for separation of β-lactamases
Autor: Susanne Gál, Bela L. Toth-Martinez, Ferenc Hernadi, Andrea Tar
Publikováno v: Journal of Chromatography A. 333:244-248
Simultaneous purification and isoclectric point (p I ) determination was carried out at analytical scale of the chromosomal cephalosporinase from the Proleus vulgaris 1028 strain. Comparison of the enzyme to the purification results with m —aminoph
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5ab6c5ea0ff18978a5ba13318655ae7a
https://doi.org/10.1016/s0021-9673(01)87350-7
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9
Purification of Escherichia coli B-specific p-aminobenzoate 'pick-up' protein to homogeneity by affinity chromatography
Autor: Ferenc Hernadi, Bela L. Toth-Martinez, Zoltán Dinya
Publikováno v: Journal of chromatography. 115(1)
Of the satellite fractions of Escherichia coli B dihydrofolate synthetases, a non-enzymic protein that is specifically able to bind p-aminobenzoate and sulphonamides has been purified 6000-fold by p-aminobenzoylcellulose affinity chromatography. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934787087d087649ca11555ec00af556
https://pubmed.ncbi.nlm.nih.gov/1104653
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