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author = "Martín, J F"
<< < 1 2 3 4 5 > >>

Found 178 documents, displaying page 2 of 18

Molecular cloning, DNA sequence analysis, and characterization of the Corynebacterium diphtheriae dtxR homolog from Brevibacterium lactofermentum.

Author(s) : Oguiza, J A , Tao, X , Marcos, A T , Martín, J F , Murphy, J R
Description : A homolog of the Corynebacterium diphtheriae dtxR gene was isolated from Brevibacterium lactofermentum. The product of the B. lactofermentum dtxR gene was immunoreactive with polyclonal anti-DtxR antibodies and functioned as an iron-activated repressor capable of regulating the expression of beta-ga...
Repository : Europe PubMed Central
Language(s) : English

Sequential expression of multiple POU proteins during amphibian early development.

Author(s) : Hinkley, C S , Martin, J F , Leibham, D , Perry, M
Description : The octamer motif is a common cis-acting regulatory element that functions in the transcriptional control regions of diverse genes and in viral origins of replication. The ability of a consensus octamer motif to stimulate transcription of a histone H2B promoter in frog oocytes suggests that oocytes ...
Repository : Europe PubMed Central
Language(s) : English

A two-protein component 7 alpha-cephem-methoxylase encoded by two genes of the cephamycin C cluster converts cephalosporin C to 7-methoxycephalosporin C.

Author(s) : Coque, J J , Enguita, F J , Martín, J F , Liras, P
Description : Two genes, cmcI and cmcJ, corresponding to open reading frames 7 and 8 (ORF7 and ORF8) of the cephamycin C cluster of Nocardia lactamdurans encode enzymes that convert cephalosporin C to 7-methoxycephalosporin C. Proteins P7 and P8 (the products of ORF7 and ORF8 expressed in Streptomyces lividans) i...
Repository : Europe PubMed Central
Language(s) : English

Multiple sigma factor genes in Brevibacterium lactofermentum: characterization of sigA and sigB.

Author(s) : Oguiza, J A , Marcos, A T , Malumbres, M , Martín, J F
Description : Four rpoD hybridizing signals have been identified in the chromosome of Brevibacterium lactofermentum. Two rpoD-like genes, sigA and sigB, have been cloned and sequenced, and they encode principal sigma factors of the RNA polymerase. The deduced amino acid sequences of SigA and SigB showed very high...
Repository : Europe PubMed Central
Language(s) : English

Genes for a beta-lactamase, a penicillin-binding protein and a transmembrane protein are clustered with the cephamycin biosynthetic genes in Nocardia lactamdurans.

Author(s) : Coque, J J , Liras, P , Martín, J F
Description : Three genes encoding a typical beta-lactamase, a penicillin-binding protein (PBP4) and a transmembrane protein are located in the cluster of cephamycin biosynthetic genes in Nocardia lactamdurans. The similarity of the N. lactamdurans beta-lactamase to class A beta-lactamases from clinical isolates ...
Repository : Europe PubMed Central
Language(s) : English

Cloning and characterization of the isopenicillin N synthase gene of Streptomyces griseus NRRL 3851 and studies of expression and complementation of the cephamycin pathway in Streptomyces clavuligerus.

Author(s) : García-Domínguez, M , Liras, P , Martín, J F
Description : A gene, pcbC, encoding the isopenicillin N synthase of Streptomyces griseus NRRL 3851, has been cloned in a 6.4-kb Bg/II DNA fragment and located in an internal 1.55-kb PvuII segment by hybridization with the Penicillium chrysogenum pcbC gene. Hybridization studies revealed the presence of homologou...
Repository : Europe PubMed Central
Language(s) : English

Resolution of chromosomes III and VI of Aspergillus nidulans by pulsed-field gel electrophoresis shows that the penicillin biosynthetic pathway genes pcbAB, pcbC, and penDE are clustered on chromosome VI (3.0 megabases).

Author(s) : Montenegro, E , Fierro, F , Fernandez, F J , Gutiérrez, S , Martín, J F
Description : An improved electrophoretic molecular karyotype of Aspergillus nidulans ATCC 28901 has been obtained by contour-clamped electric field gel electrophoresis, which separates seven chromosomal bands and allows resolution of chromosomes III and VI. The three genes of the penicillin biosynthetic pathway,...
Repository : Europe PubMed Central
Language(s) : English

Histological demonstration of platelet thrombi with a double silver impregnation argyrophil stain.

Author(s) : Slater, D N , Anderson, G , Martin, J F
Description :
Repository : Europe PubMed Central
Language(s) : English

Nucleotide sequence of the homoserine kinase (thr B) gene of Brevibacterium lactofermentum.

Author(s) : Mateos, L M , del Real, G , Aguilar, A , Martín, J F
Description :
Repository : Europe PubMed Central
Language(s) : English

Nucleotide sequence of the homoserine dehydrogenase (thr A) gene of Brevibacterium lactofermentum.

Author(s) : Mateos, L M , del Real, G , Aguilar, A , Martín, J F
Description :
Repository : Europe PubMed Central
Language(s) : English
<< < 1 2 3 4 5 > >>

Found 178 documents, displaying page 2 of 18