Abstract:
:Cobamides ('complete' corrinoids) are essential for organohalide-respiring bacteria because they act as cofactors of reductive dehalogenases (RDases). RDases are the key enzymes in organohalide respiration, a process relevant for environmental remediation. More than a decade ago, the unusual norpseudo-B12 was identified as cofactor of the tetrachloroethene RDase (PceA) purified from the epsilonproteobacterium Sulfurospirillum multivorans. Since then, the question was raised whether or not the production of the uncommon cobamide is a specific adaptation to the requirements of PceA. Recently, efforts were made to unravel variations in the cobamide biosynthetic pathway, which lead to the production of the structurally unique norpseudo-B12. The acquisition of genomic and proteomic data together with structural analyses of PceA provided insights into norcobamide formation and utilization. By the use of guided biosynthesis, S. multivorans was shown to be an effective cobamide producer capable of generating unusual norcobamides either functional or non-functional as cofactors of PceA. The organism turned out to be a suitable tool for testing the impact of cobamide structure on enzyme function. The results summarized here highlight S. multivorans in particular and the organohalide-respiring bacteria in general as a resource for new discoveries on cobamide diversity and utilization.
journal_name
World J Microbiol Biotechnoljournal_title
World journal of microbiology & biotechnologyauthors
Schubert Tdoi
10.1007/s11274-017-2258-xsubject
Has Abstractpub_date
2017-05-01 00:00:00pages
93issue
5eissn
0959-3993issn
1573-0972pii
10.1007/s11274-017-2258-xjournal_volume
33pub_type
杂志文章,评审abstract::A major constraint for expanding biotechnology in developing countries is the tack of appropriate microbial strains and microbial genetic resources. The recently established Microbial Strain Data Network (MSDN) offers the opportunity of, at least partially, llfting these constraints, since even a small institutional c...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF01200928
更新日期:1990-06-01 00:00:00
abstract::The apsA and apsB genes encoding family M1 aminopeptidases were identified in the industrial fungus Aspergillus oryzae. The apsB was transcriptionally up-regulated up to 2.5-fold in response to the deprivation of nitrogen or carbon sources in growth media, while up-regulation of apsA was less significant. The encoded ...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1074-6
更新日期:2012-08-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1280-x
更新日期:2013-07-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1420-3
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abstract::A nonautonomous element of 624 bp, called RetroCl1 (Retroelement Colletotrichum lindemuthianum 1), was identified in the plant pathogenic fungus Colletotrichum lindemuthianum. RetroCl1 contains terminal direct repeats (223 bp) that are surrounded by CTAGT sequences. It has a short internal domain of 178 bp and shows c...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2012-03-01 00:00:00
abstract::A symbiotic, heterocystous, N2-fixing blue-green alga, isolated from the coralloid roots of a xerophytic plant,Cycas revoluta, grew best in liquid medium supplemented with 4 mM NO 3 (-) . Morphologically, the isolated alga was identical to that of the natural endophyte but the cell size had decreased markedly. The alg...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00364617
更新日期:1995-07-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-019-2704-z
更新日期:2019-08-02 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2020-07-26 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-017-2267-9
更新日期:2017-06-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章,评审
doi:10.1007/s11274-017-2247-0
更新日期:2017-05-01 00:00:00
abstract::A xylanase gene, designated Svixyn10A, was cloned from actinomycetes Saccharomonospora viridis and the gene product was characterized. Gene Svixyn10A contains 1,374 bp and encodes a polypeptide of 457 amino acids composed of a glycoside hydrolase family 10 catalytic domain with a putative signal peptide, a short Gly-r...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1085-3
更新日期:2012-08-01 00:00:00
abstract::Heavy-metal chromium [Cr(VI)] is a ubiquitous environmental pollutant. Comparing with chemical reduction, microbiological reduction is considered to be a friendly and cheaper way to decrease the damage caused by chromate. A bacterial strain, CR-07, which is resistant to and capable of reducing chromate was isolated fr...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-011-0962-5
更新日期:2012-04-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-020-02950-y
更新日期:2020-11-09 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-012-1044-z
更新日期:2012-06-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2012-11-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2014-06-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-014-1686-0
更新日期:2014-10-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2015-02-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1565-0
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00327720
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abstract::Identification of Clostridium botulinum is usually based on toxin detection of broth culture by mouse bioassay and requires 7 to 10 days to complete. Here, we describe an alternative in vitro procedure for direct identification of C. botulinum (types A and B) colonies which can be completed in 48 h. The method is base...
journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00357557
更新日期:1994-01-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF00327792
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2019-11-14 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/s11274-013-1491-1
更新日期:2014-03-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
doi:10.1007/BF02421497
更新日期:1992-12-01 00:00:00
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journal_title:World journal of microbiology & biotechnology
pub_type: 杂志文章
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更新日期:2015-12-01 00:00:00