Abstract:
:The celA1 gene encoding an endo-beta-1,4-glucanase from a mesophilic actinomycete, strain JM8, identified as Streptomyces halstedii, was cloned and expressed in S. lividans JI66. From the nucleotide sequence of a 1.7-kb DNA fragment we identified an open reading frame of 963 nucleotides encoding a protein of 321 amino acids, starting at TTG (instead of ATG). The Cel1 mature enzyme is a protein of 294 amino acids (after signal peptide cleavage) and can be included in the beta-glycanase family B (N. R. Gilkes, B. Henrissat, D. G. Kilburn, R. C. Miller, Jr., and R. A. J. Warren, Microbiol. Rev. 55:303-315, 1991). The Cel1 enzyme lacks a cellulose-binding domain as predicted by computer analysis of the sequence and confirmed by Avicel binding experiments. The promoter region of celA1 was identified by S1 mapping; the -35 region closely resembles those of housekeeping Streptomyces promoters. Three imperfectly repeated sequences of 15, 15, and 14 nucleotides were found upstream from celA1 [ATTGGGACCGCTTCC-(N85)-ATTGGGACCGCTTCC-(N2)-TGGGAGC GCTCCCA]; The 14-nucleotide sequence has a perfect palindrome identical to that found in several cellulase-encoding genes from Thermomonospora fusca, an alkalophilic Streptomyces strain, and Streptomyces lividans. This sequence has been implicated in the mechanism of induction exerted by cellobiose. Using an internal celA1 probe, we detected similar genes in several other Streptomyces species, most of them cellulase producers.
journal_name
J Bacterioljournal_title
Journal of bacteriologyauthors
Fernández-Abalos JM,Sánchez P,Coll PM,Villanueva JR,Pérez P,Santamaría RIdoi
10.1128/jb.174.20.6368-6376.1992keywords:
subject
Has Abstractpub_date
1992-10-01 00:00:00pages
6368-76issue
20eissn
0021-9193issn
1098-5530journal_volume
174pub_type
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.126.2.997-998.1976
更新日期:1976-05-01 00:00:00
abstract::Gilden, R. V. (Wistar Institute, Philadelphia, Pa.), and R. I. Carp. Effects of cycloheximide and puromycin on synthesis of simian virus 40 T antigen in green monkey kidney cells. J. Bacteriol. 91:1295-1297. 1966.-Synthesis of the simian virus 40 (SV40) T antigen in primary African green monkey kidney cells was abolis...
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.126.1.553-555.1976
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.154.3.1309-1314.1983
更新日期:1983-06-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.20.6070-6073.1996
更新日期:1996-10-01 00:00:00
abstract::Chlamydiae are widespread Gram-negative pathogens of humans and animals. Salicylidene acylhydrazides, developed as inhibitors of type III secretion system (T3SS) in Yersinia spp., have an inhibitory effect on chlamydial infection. However, these inhibitors also have the capacity to chelate iron, and it is possible tha...
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pub_type: 杂志文章
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更新日期:2014-08-15 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:2003-03-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.141.1.270-274.1980
更新日期:1980-01-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.187.20.6909-6916.2005
更新日期:2005-10-01 00:00:00
abstract::Genome sequencing revealed that all six chlamydiae genomes contain three groEL-like genes (groEL1, groEL2, and groEL3). Phylogenetic analysis of groEL1, groEL2, and groEL3 indicates that these genes are likely to have been present in chlamydiae since the beginning of the lineage. Comparison of deduced amino acid seque...
journal_title:Journal of bacteriology
pub_type: 杂志文章
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更新日期:2003-03-01 00:00:00
abstract::Methylation of DNA at the C-5 position of cytosine occurs in diverse organisms. This modification can increase the rate of C→T transitions at the methylated position. In Escherichia coli and related enteric bacteria, the inner C residues of the sequence CCWGG (W is A or T) are methylated by the Dcm enzyme. These sites...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00371-18
更新日期:2018-11-26 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.00916-12
更新日期:2012-08-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.183.20.5911-5917.2001
更新日期:2001-10-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.142.1.254-261.1980
更新日期:1980-04-01 00:00:00
abstract::The pyrimidine de novo biosynthesis pathway has been characterized for a number of organisms. The general pathway consists of six enzymatic steps. In the characterization of the pyrimidine pathway of Lactococcus lactis, two different pyrD genes encoding dihydroorotate dehydrogenase were isolated. The nucleotide sequen...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.176.13.3975-3982.1994
更新日期:1994-07-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.184.9.2379-2388.2002
更新日期:2002-05-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.98.3.1390-1394.1969
更新日期:1969-06-01 00:00:00
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更新日期:1995-09-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
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pub_type: 杂志文章
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更新日期:2015-08-24 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.175.20.6689-6694.1993
更新日期:1993-10-01 00:00:00
abstract::Klein, Dolph (Rutgers, The State University, New Brunswick, N. J.), and David Pramer. Bacterial dissimilation of streptomycin. J. Bacteriol. 82:505-510. 1961.-The influence of various nutritional and environmental factors on the dissimilation of streptomycin by a pseudomonad isolated from soil was investigated, and co...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.82.4.505-510.1961
更新日期:1961-10-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.5.1480-1483.1996
更新日期:1996-03-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.174.8.2501-2510.1992
更新日期:1992-04-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.166.2.689-692.1986
更新日期:1986-05-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.84.4.841-858.1962
更新日期:1962-10-01 00:00:00
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journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/jb.178.14.4208-4215.1996
更新日期:1996-07-01 00:00:00
abstract::Constitutive beta-glucosidases from Saccharomyces fragilis (Y-18) and S. dobzhanskii (Y-19) precipitated at the same concentration of ammonium sulfate. The partially purified enzymes had similar activation energies, molecular weights, affinities for certain natural and synthetic beta-glucosides, and optimal pH values ...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.93.1.135-141.1967
更新日期:1967-01-01 00:00:00
abstract::In Klebsiella aerogenes, arylsulfatase synthesis was repressed by inorganic sulfate, sulfite, sulfide, thiosulfate, and cysteine, but not by methionine under normal growth conditions. We isolated cysteine-requiring mutants (Cys minus), and mutants (AtsS minus, AtsR minus) in which the regulation of arylsulfatase synth...
journal_title:Journal of bacteriology
pub_type: 杂志文章
doi:10.1128/JB.121.1.29-35.1975
更新日期:1975-01-01 00:00:00