Pandoraea pnomenusa strain 3kgm has been identified as a quorum-sensing strain isolated from soil. Here, we report the complete genome sequence of P. pnomenusa strain 3kgm by using the Pacific Biosciences single-molecule real-time (PacBio RS SMRT) sequencer high-resolution technology.
Longimonas halophila and Longibacter salinarum are type strains of underexplored genera affiliated with Salisaetaceae Herein, we report the draft genome sequences of two strains of these bacteria, L. halophila KCTC 42399 and L. salinarum KCTC 52045, with the intent of broadening knowledge of this family. Genome annotation and gene mining revealed that both bacteria exhibit amylolytic abilities.
Various methods have been developed for rapid and high throughput full genome sequencing of SARS-CoV-2. Here, we described a protocol for targeted multiplex full genome sequencing of SARS-CoV-2 genomic RNA directly extracted from human nasopharyngeal swabs using the Ion Personal Genome Machine (PGM). This protocol involves concomitant amplification of 237 gene fragments encompassing the SARS-CoV-2 genome to increase the abundance and yield of viral specific sequencing reads. Five complete and one near-complete genome sequences of SARS-CoV-2 were generated with a single Ion PGM sequencing run. The sequence coverage analysis revealed two amplicons (positions 13 751-13 965 and 23 941-24 106), which consistently gave low sequencing read coverage in all isolates except 4Apr20-64- Hu. We analyzed the potential primer binding sites within these low covered regions and noted that the 4Apr20-64-Hu possess C at positions 13 730 and 23 929, whereas the other isolates possess T at these positions. The genome nucleotide variations observed suggest that the naturally occurring variations present in the actively circulating SARS-CoV-2 strains affected the performance of the target enrichment panel of the Ion AmpliSeq™ SARS CoV 2 Research Panel. The possible impact of other genome nucleotide variations warrants further investigation, and an improved version of the Ion AmpliSeq™ SARS CoV 2 Research Panel, hence, should be considered.
Hahella sp. strain CCB-MM4 is a halophilic bacterium isolated from estuarine mangrove sediment. The genome sequence of Hahella sp. CCB-MM4 provides insights into exopolysaccharide biosynthesis and the lifestyle of the bacterium thriving in a saline mangrove environment.
The Geobacillus zalihae strain T1 produces a thermostable T1 lipase that could be used for industrial purposes. Previously, the GST-T1 lipase was purified through two chromatographic steps: affinity and ion exchange (IEX) but the recovery yield was only 33%. To improve the recovery yield to over 80%, the GST tag from the pGEX system was replaced with a poly-histidine at the N-terminal of the T1 lipase sequence. The novel construct of pGEX/His-T1 lipase was developed by site-directed mutagenesis, where the XbaI restriction site was introduced upstream of the GST tag, allowing the removal of tag via double digestion using XbaI and EcoRI (existing cutting site in the pGEX system). Fragment of 6 × His-T1 lipase fusion was synthesized, cloned into the pGEX4T1 system, and expressed in Escherichia coli BL21 (DE3) pLysS, resulting in lipase-specific activity at 236 U/mg. The single purification step of His-T1 lipase was successfully achieved using nickel Sepharose 6FF with an optimized concentration of 5 mM imidazole for binding, yielding the recovery of 98%, 1,353 U/mg lipase activity, and a 5.7-fold increase in purification fold. His-T1 lipase was characterized and was found to be stable at pH 5-9, active at 70 °C, and optimal at pH 9.
Great progress has been made in unravelling the evolutionary history of Asian colobines, largely through the use of dated molecular phylogenies based on multiple markers. The Presbytis langurs are a case in point, with more allopatric species being identified, recognition of Presbytis thomasi from Sumatra rather than P. potenziani from the Mentawai Islands as being the most basal species of the group, and the discovery that P. rubicunda from Borneo is nested among the Sumatran species and only made it to Borneo in the last 1.3 million years. Based on variation in mitochondrial d-loop, it has recently been argued that Malaysia's P. femoralis femoralis is actually P. neglectus neglectus. Unfortunately, despite being available, sequences from the type locality, Singapore, were excluded from the analysis, and none of the newly generated sequences was deposited in GenBank. I manually reconstructed these sequences, which allowed me to present a molecular phylogeny that includes 8 additional sequences from West Malaysia and Singapore. P. neglectus from Malaysia and P. femoralis from Singapore form one monophyletic clade, with minimal divergence. I conclude that recognition of P. neglectus is erroneous and the name is a junior synonym of P. femoralis. Colobine taxonomy and systematics have advanced, and continue to advance, mostly by considering evidence from a wide range of individuals, species and data sets (molecular, behavioural and morphological) rather than focusing on single molecular markers from 1 or 2 species from one small geographic area. For an orderly taxonomic debate where evidence can be evaluated and reinterpreted it is essential that newly generated sequences are deposited in public repositories.
Dickeya sp. strain 2B12 was isolated from a freshwater lake in Malaysia. Here, we report the draft genome sequence of Dickeya sp. 2B12 sequenced by the Illumina MiSeq platform. With the genome sequence available, this genome sequence will be useful for the study of quorum-sensing activity in this isolate.
Pandoraea is an emerging respiratory pathogen capable of causing chronic lung infections in people with cystic fibrosis (CF), but the clinical significance of this infection is ambiguous. We have sequenced and annotated the genomes of two multidrug-resistant Pandoraea pnomenusa isolates recovered 11 months apart from the same CF patient.
Pluralibacter gergoviae FB2, a bacterial strain isolated from packed food, has been found to exhibit quorum-quenching properties. Hence, we report the first, complete genome of P. gergoviae sequenced using the Pacific Biosciences single-molecule, real-time (SMRT) platform.
Here, we present the draft genome sequence of Aeromonas caviae strain L12, which shows quorum-sensing activity. The availability of this genome sequence is important to the research of the quorum-sensing regulatory system in this isolate.
We report here the complete genome sequence of C. neteri SSMD04, a strain isolated from pickled mackerel sashimi, sequenced by third-generation sequencing technology. To the best of our knowledge, this is the first documentation that reports the complete genome of Cedecea neteri.
Aeromonas hydrophila species can be found in warm climates and can survive in different environments. They possess the ability to communicate within their populations, which is known as quorum sensing. In this work, we present the draft genome sequence of A. hydrophila M013, a bacterium isolated from a Malaysian tropical rainforest waterfall.
Pseudomonas aeruginosa has a broad range of habitation, from aquatic environments to human lungs. The coexistence of quorum-sensing and quorum-quenching activities occurs in P. aeruginosa strain MW3a. In this work, we present the draft genome sequence of P. aeruginosa MW3a, an interesting bacterium isolated from a marine environment.
We report the full genome sequence of hepatitis C virus (HCV) subtype 6n from Kuala Lumpur, Malaysia. Phylogenetic analysis of the isolate 10MYKJ032 suggests that Southeast Asia might be the origin for the HCV subtype 6n and highlights the possible spread of this lineage from Southeast Asia to other regions.
Here, we report the draft genome sequence of Chromobacterium piscinae strain ND17. This bacterium was isolated from a fresh water sample in Malaysia and exhibits quorum-sensing activity. This first draft genome of C. piscinae strain ND17 will pave the way to future studies of the quorum-sensing properties of this isolate.
We report the draft genome sequence of Pandoraea sp. strain E26 isolated from a former landfill site, sequenced by the Illumina MiSeq platform. This genome sequence will be useful to further understand the quorum-sensing system of this isolate.
In this work, we describe the genome of Lysinibacillus sp. strain A1, which was isolated from tropical soil. Analysis of its genome sequence shows the presence of a gene encoding for a putative peptidase responsible for nitrogen compounds.
Members of the genus Tinctoporellus, which belong to the wood-degrading basidiomycetes, possess the ability to synthesize an array of industrially potent enzymes and metabolites. Here, we present the draft genome sequence of the species Tinctoporellus epimiltinus strain RS1, which is the first to represent its genus. The genome was sequenced using Illumina's 2 × 150 bp paired-end Nextera protocol. The draft genome assembly was 46.2 Mb in size consisting of 13,791 protein coding genes. Identification of carbohydrate active enzymes and laccases from the data may be useful in order to harness the metabolic potentials of the fungi. The data can be accessed at ENA under the accession number FTLJ00000000.
Here, we report the draft genome sequence of Flavobacterium sp. strain PL002, isolated from Antarctic Porphyra algae. The 4,299,965-bp genome sequence is assembled into 170 contigs, has 32.92% GC content, and 3,734 predicted genes.
The draft genome sequence of Streptomyces fildesensis strain INACH3013, a psychrotrophic bacterium isolated from Northwest Antarctic soil, was reported. The genome sequence totaling 9,306,785 bp resulted from 122 contigs characterized by a GC content of 70.55%.