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Flavobacterium sp. UMI-01

ABSTRACT: Draft genome sequencing of the bacterium Flavobacterium sp. strain UMI-01

PROVIDER: PRJDB11866 | ENA |

REPOSITORIES: ENA

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			Action	DRS
		Other
	BPLU01.dat.gz	Other
	BPLU01.fasta.gz	Fasta.gz
	BPLU01.master.dat	Other

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Flavobacterium sp. LC2016-01

Project description:Flavobacterium sp. LC2016-01 Genome sequencing and assembly

| PRJNA590383 | ENA

Characterization of an alginate lyase, FlAlyA, from Flavobacterium sp. strain UMI-01 and its expression in Escherichia coli.

Project description:A major alginate lyase, FlAlyA, was purified from the periplasmic fraction of an alginate-assimilating bacterium, Flavobacterium sp. strain UMI-01. FlAlyA showed a single band of ~30 kDa on SDS-PAGE and exhibited the optimal temperature and pH at 55 °C and pH 7.7, respectively. Analyses for substrate preference and reaction products indicated that FlAlyA was an endolytic poly(mannuronate) lyase (EC 4.2.2.3). A gene fragment encoding the amino-acid sequence of 288 residues for FlAlyA was amplified by inverse PCR. The N-terminal region of 21 residues except for the initiation Met in the deduced sequence was predicted as the signal peptide and the following region of six residues was regarded as propeptide, while the C-terminal region of 260 residues was regarded as the polysaccharide-lyase-family-7-type catalytic domain. The entire coding region for FlAlyA was subjected to the pCold I-Escherichia coli BL21(DE3) expression system and ~eight times higher yield of recombinant FlAlyA (recFlAlyA) than that of native FlAlyA was achieved. The recFlAlyA recovered in the periplasmic fraction of E. coli had lost the signal peptide region along with the N-terminal 3 residues of propeptide region. This suggested that the signal peptide of FlAlyA could function in part in E. coli.

| S-EPMC4145338 | biostudies-literature

Massilia sp. UMI-21

Project description:Massilia sp. UMI-21 Genome sequencing

| PRJNA669114 | ENA

Identification of a 4-deoxy-L-erythro-5-hexoseulose uronic acid reductase, FlRed, in an alginolytic bacterium Flavobacterium sp. strain UMI-01.

Project description:In alginate-assimilating bacteria, alginate is depolymerized to unsaturated monosaccharide by the actions of endolytic and exolytic alginate lyases (EC 4.2.2.3 and EC 4.2.2.11). The monosaccharide is non-enzymatically converted to 4-deoxy-L-ery thro-5-hexoseulose uronic acid (DEH), then reduced to 2-keto-3-deoxy-D-gluconate (KDG) by a specific reductase, and metabolized through the Entner-Doudoroff pathway. Recently, the NADPH-dependent reductase A1-R that belongs to short-chain dehydrogenases/reductases (SDR) superfamily was identified as the DEH-reductase in Sphingomonas sp. A1. We have subsequently noticed that an SDR-like enzyme gene, flred, occurred in the genome of an alginolytic bacterium Flavobacterium sp. strain UMI-01. In the present study, we report on the deduced amino-acid sequence of flred and DEH-reducing activity of recombinant FlRed. The deduced amino-acid sequence of flred comprised 254 residues and showed 34% amino-acid identities to that of A1-R from Sphingomonas sp. A1 and 80%-88% to those of SDR-like enzymes from several alginolytic bacteria. Common sequence motifs of SDR-superfamily enzymes, e.g., the catalytic tetrad Asn-Lys-Tyr-Ser and the cofactor-binding sequence Thr-Gly-x-x-x-Gly-x-Gly in Rossmann fold, were completely conserved in FlRed. On the other hand, an Arg residue that determined the NADPH-specificity of Sphingomonas A1-R was replaced by Glu in FlRed. Thus, we investigated cofactor-preference of FlRed using a recombinant enzyme. As a result, the recombinant FlRed (recFlRed) was found to show high specificity to NADH. recFlRed exhibited practically no activity toward variety of aldehyde, ketone, keto ester, keto acid and aldose substrates except for DEH. On the basis of these results, we conclude that FlRed is the NADH-dependent DEH-specific SDR of Flavobacterium sp. strain UMI-01.

| S-EPMC4306948 | biostudies-literature

Proteomic analysis of Flavobacterium johnsoniae

Project description:The soil bacterium Flavobacterium johnsoniae was grown on agar plates with or without pectin,bacteria were harvested, lysed, and subjected to LC-MS/MS analysis

2021-04-12 | PXD023649 | Pride

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Project description:Flavobacterium tructae strain:CF-01 Genome sequencing

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| PRJNA841778 | ENA

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Project description:Flavobacterium ginsenosidimutans strain:THG 01 Genome sequencing and assembly