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44. Resistance of Escherichia coli to penicillins. VI. Purification and characterization of the chromosomally mediated penicillinase present in ampA-containing strains. Linström EB; Boman HG; Steele BB J Bacteriol; 1970 Jan; 101(1):218-31. PubMed ID: 4983650 [TBL] [Abstract][Full Text] [Related]
45. PENICILLINASE-RESISTANT PENICILLINS AND CEPHALOSPORINS. BARBER M; WATERWORTH PM Br Med J; 1964 Aug; 2(5405):344-9. PubMed ID: 14160224 [No Abstract] [Full Text] [Related]
46. Characteristics of Aerobacter beta-lactamase. Goldner M; Glass DG; Fleming PC Can J Microbiol; 1968 Feb; 14(2):139-45. PubMed ID: 5644406 [No Abstract] [Full Text] [Related]
47. [Studies on the formation of penicillic acid by various species of bacteria]. Ritzerfeld W; Cohausz G Arch Hyg Bakteriol; 1966 Sep; 150(5):480-4. PubMed ID: 4966311 [No Abstract] [Full Text] [Related]
48. [Purification of beta-lactamases by affinity chromatography]. Le Goffic F; Andrillon-Spiegel J; Letarte R Biochimie; 1975; 57(1):29-34. PubMed ID: 1096966 [TBL] [Abstract][Full Text] [Related]
50. [Suppression of penicillinases by compounds similar to penicillins]. Chaĭkovskaia SM; Makarova RA; Tebiankina AE; Kleĭner EM; Guseva AS; Khokhlov AS Antibiotiki; 1968 Feb; 13(2):155-8. PubMed ID: 4970062 [No Abstract] [Full Text] [Related]
51. Membrane-bound penicillin-binding proteins of Escherichia coli. Comparison of a strain carrying an R-factor and the parent strain. Horikawa S; Ogawara H J Antibiot (Tokyo); 1978 Dec; 31(12):1283-91. PubMed ID: 367999 [TBL] [Abstract][Full Text] [Related]
52. The use of -lactamases in the clinical laboratory. Newsom SW; Walsingham BM J Med Microbiol; 1973 Feb; 6(1):59-66. PubMed ID: 4632253 [No Abstract] [Full Text] [Related]
53. Cephalosporinase and penicillinase activities of a beta-lactamase from Pseudomonas pyocyanea. Sabath LD; Jago M; Abraham EP Biochem J; 1965 Sep; 96(3):739-52. PubMed ID: 5862414 [TBL] [Abstract][Full Text] [Related]
54. Calorimetric analysis of cephalosporins using an immobilized TEM-1 beta-lactamase on Ni2+ chelating sepharose fast flow. Lawung R; Danielsson B; Prachayasittikul V; Bülow L Anal Biochem; 2001 Sep; 296(1):57-62. PubMed ID: 11520032 [TBL] [Abstract][Full Text] [Related]
55. Beta-lactamase activity and resistance to ampicillin, carbenicillin, and cephaloridine of Klebsiella, Enterobacter, and Citrobacter. Slocombe B; Sutherland R Antimicrob Agents Chemother (Bethesda); 1969; 9():78-85. PubMed ID: 5202413 [No Abstract] [Full Text] [Related]
56. METABOLIC CONTROL OF PENICILLINASE BIOSYNTHESIS IN BACILLUS CEREUS. YIP LC; SHAH R; DAY RA J Bacteriol; 1964 Aug; 88(2):297-308. PubMed ID: 14203344 [TBL] [Abstract][Full Text] [Related]
57. Susceptibility of penicillins and cephalosporins to beta-lactamases assessed by a new test. Selwyn S J Antimicrob Chemother; 1977 Mar; 3(2):161-8. PubMed ID: 324965 [No Abstract] [Full Text] [Related]
58. [Characterization by zymograms of R factor-determined beta-lactamases: plasmids of defined and undefined compatibility groups (author's transl)]. Laub-Kupersztejn R; Antoine O; Pohl P; Thomas J Ann Microbiol (Paris); 1976; 127A(2):237-46. PubMed ID: 786104 [TBL] [Abstract][Full Text] [Related]