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Cellulomonas gilvus

ABSTRACT: Cellvibrio gilvus overview

PROVIDER: PRJNA37213 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	SRR3722320_1.fastq.gz	Fastqsanger.gz
	SRR3722320_2.fastq.gz	Fastqsanger.gz
	SRR3722321_1.fastq.gz	Fastqsanger.gz
	SRR3722321_2.fastq.gz	Fastqsanger.gz

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Project description:Cellulomonas gilvus ATCC 13127 Transcriptome or Gene expression

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The genome sequences of Cellulomonas fimi and "Cellvibrio gilvus" reveal the cellulolytic strategies of two facultative anaerobes, transfer of "Cellvibrio gilvus" to the genus Cellulomonas, and proposal of Cellulomonas gilvus sp. nov.

Project description:Actinobacteria in the genus Cellulomonas are the only known and reported cellulolytic facultative anaerobes. To better understand the cellulolytic strategy employed by these bacteria, we sequenced the genome of the Cellulomonas fimi ATCC 484(T). For comparative purposes, we also sequenced the genome of the aerobic cellulolytic "Cellvibrio gilvus" ATCC 13127(T). An initial analysis of these genomes using phylogenetic and whole-genome comparison revealed that "Cellvibrio gilvus" belongs to the genus Cellulomonas. We thus propose to assign "Cellvibrio gilvus" to the genus Cellulomonas. A comparative genomics analysis between these two Cellulomonas genome sequences and the recently completed genome for Cellulomonas flavigena ATCC 482(T) showed that these cellulomonads do not encode cellulosomes but appear to degrade cellulose by secreting multi-domain glycoside hydrolases. Despite the minimal number of carbohydrate-active enzymes encoded by these genomes, as compared to other known cellulolytic organisms, these bacteria were found to be proficient at degrading and utilizing a diverse set of carbohydrates, including crystalline cellulose. Moreover, they also encode for proteins required for the fermentation of hexose and xylose sugars into products such as ethanol. Finally, we found relatively few significant differences between the predicted carbohydrate-active enzymes encoded by these Cellulomonas genomes, in contrast to previous studies reporting differences in physiological approaches for carbohydrate degradation. Our sequencing and analysis of these genomes sheds light onto the mechanism through which these facultative anaerobes degrade cellulose, suggesting that the sequenced cellulomonads use secreted, multidomain enzymes to degrade cellulose in a way that is distinct from known anaerobic cellulolytic strategies.

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Cellulomonas gilvus ATCC 13127 isolate:ATCC 13127

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Cellulomonas gilvus ATCC 13127 isolate:ATCC 13127

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