Breaking News
July 21, 2018 - Whole-brain LIPUS therapy improves cognitive dysfunction in mice simulating dementia, Alzheimer’s
July 21, 2018 - Digital media use raising risk of ADHD symptoms among the young
July 21, 2018 - Phase 3 study of tanezumab in patients with osteoarthritis pain meets all three co-primary endpoints
July 21, 2018 - Restoring mitochondrial function to reverse aging-related skin wrinkles, hair loss in mice
July 21, 2018 - SP PennTech introduces RW-500 rotary vial washer for biotech, pharmaceutical applications
July 21, 2018 - Researchers to study molecular mechanisms behind susceptibility of males to autism
July 21, 2018 - Fourth Published Clinical Trial Confirms Long-Term Safety of Niagen Supplementation at High Doses and Shows Potential for Improvement in Liver Health
July 21, 2018 - Parents say intense gun violence in PG-13 movies appropriate for teens 15 and older
July 21, 2018 - FAU researchers find possible cause of Parkinson’s disease in the patients’ immune system
July 21, 2018 - Protective qualities of ‘good cholesterol’ reduce after menopause
July 21, 2018 - Researchers develop new way to uncover hidden breast cancer tumors
July 21, 2018 - FDA approves first drug for treatment of adult AML patients with specific genetic mutation
July 21, 2018 - Top AI companies join hands to discover novel drugs for DMD
July 21, 2018 - Ferring announces FDA approval of ZOMACTON for injection in four new pediatric indications
July 20, 2018 - Researchers design proteins that can self-assemble into complex structures
July 20, 2018 - AVITA Medical expands management team to support launch of RECELL device to treat burns
July 20, 2018 - FDA Approves Tibsovo (ivosidenib) for Relapsed or Refractory Acute Myeloid Leukemia with an IDH1 Mutation
July 20, 2018 - Developmental screening and surveillance rates remain low, new study suggests
July 20, 2018 - TGen opens tissue donation portal to advance DIPG research
July 20, 2018 - Health impact of highly processed summertime staples
July 20, 2018 - Exergaming can improve health in overweight and obese children, study shows
July 20, 2018 - Postmenopausal factors may impact heart-protective qualities of ‘good cholesterol’
July 20, 2018 - MRI and blood test combination results in improved prostate cancer diagnosis
July 20, 2018 - Update Health Professional and Consumer on Recent Recalled Products
July 20, 2018 - Researchers trace Parkinson’s damage in the heart
July 20, 2018 - Wearable device designed to measure cortisol in sweat
July 20, 2018 - Scientists demonstrate a new regulation mechanism for skeletal muscles
July 20, 2018 - Exposure to mobile phone radiation may negatively impact memory performance in adolescents
July 20, 2018 - SUSU scientists find alternative method to treat post-traumatic stress disorder syndrome
July 20, 2018 - Gestational diabetes may increase offspring’s heart disease risk
July 20, 2018 - New vaccine could protect unborn babies from Zika virus
July 20, 2018 - Researchers find high mercury and methylmercury concentrations in traditional Tibetan medicine
July 20, 2018 - Brief Safety Plan Intervention in ER Can Cut Suicidal Behavior
July 20, 2018 - Toward a better understanding of Parkinson’s disease
July 20, 2018 - Med school communications office wins four national awards | News Center
July 20, 2018 - Professional baseball players with faster hand-eye coordination may have better batting performance
July 20, 2018 - Study looks into mechanisms that control sleep and wakefulness
July 20, 2018 - Scientists identify melanoma biomarkers that could help tailor immunotherapy treatments
July 20, 2018 - Research reveals long-term efficacy of drug used to treat common cause of kidney failure
July 20, 2018 - Timing of dinner associated with breast and prostate cancer risks
July 20, 2018 - Health Tip: Performing the Heimlich Maneuver
July 20, 2018 - Nearly all adolescents have eating, activity or weight-related issues
July 20, 2018 - Sage launches new web-based tool that helps explore curated genomic analyses of Alzheimer’s
July 20, 2018 - High-performance porous polymeric material for chromatography applications
July 20, 2018 - New molecule shows great promise for future treatment of many cancers
July 20, 2018 - New research project investigates alternative treatments for eye infections
July 20, 2018 - Immune T cells are built to react as fast as possible, shows study
July 20, 2018 - ZHX2 protein could offer a new treatment strategy for kidney cancer
July 20, 2018 - EKF’s Quo-Lab POC HbA1c analyzer meets international quality targets for diabetes testing
July 20, 2018 - Health burdens of very high risk drinking are potentially large, study reveals
July 20, 2018 - Using miniature drug-filled nanocarriers to target headaches and tumors
July 20, 2018 - Researchers uncover cause for progression of prostate cancer to incurable stage
July 20, 2018 - Studies highlight issues regarding black lung, opioid overdose, police violence and more
July 20, 2018 - AbbVie submits supplemental NDA to FDA for venetoclax to treat acute myeloid leukemia
July 20, 2018 - Researchers are one step closer to developing eye drops to treat age-related macular degeneration (AMD)
July 20, 2018 - Patients maintain muscle mass five years after surgically induced weight loss
July 20, 2018 - AMSBIO introduces new, powerful CRISPR/Cas9 gene editing kits
July 20, 2018 - PureTech Health collaborates with Roche to advance oral administration of antisense oligonucleotides
July 20, 2018 - Analysis reveals disparities in cancer death rates among minority groups
July 20, 2018 - Dr Maddy Parsons receives Royal Microscopical Society Life Science Medal
July 20, 2018 - Study finds link between DNA methylation and non-alcoholic fatty liver disease
July 20, 2018 - Military personnel with head trauma and football players with suspected CTE show similar brain changes
July 20, 2018 - Vidac Pharma Announces Initiation of Phase 2b Clinical Trial of VDA-1102 Ointment in Patients with Actinic Keratosis
July 20, 2018 - KKR is buying Envision Healthcare in a nearly $10B deal
July 20, 2018 - Older people with broken bones face higher risk of death for up to 10 years
July 20, 2018 - A simple pill for meth addicts on the cards
July 20, 2018 - UA researchers to repurpose ketamine to reduce side effects in Parkinson’s patients
July 20, 2018 - Child psychiatrist available on call to help assess separated immigrant children
July 20, 2018 - High bitter-taste sensitivity linked to increased risk of cancer
July 20, 2018 - Falling temperatures may lead to rise in numbers of deaths from stroke
July 20, 2018 - Supplemental oxygen prevents rise in morning blood pressure in OSA patients
July 20, 2018 - High fruit and vegetable intake linked to reduced risk of breast cancer
July 20, 2018 - Careful patient selection may help achieve good outcomes for vaginal mesh surgery
July 20, 2018 - Researchers raise viability of cloned mice using somatic cell nuclear transfer method
July 20, 2018 - 3HP for Latent TB Infection Treatment | 2018 | Newsroom | NCHHSTP
July 20, 2018 - An orange a day keeps macular degeneration away: 15-year study
July 20, 2018 - Researchers elucidate how the brain drives trial-by-trial adaptation to compensate for errors
July 20, 2018 - Understanding triple-negative breast cancer to develop better treatments
July 20, 2018 - Study compares outpatient antibiotic prescribing with traditional medical, retail clinic settings
July 20, 2018 - Immediate Monitoring With ECG Patch Ups A-Fib Diagnosis Rate
UBC researchers unveil representative of most abundant giant viruses in the sea

UBC researchers unveil representative of most abundant giant viruses in the sea

image_pdfDownload PDFimage_print

Bodo saltans virus, the first isolated representative of the most abundant giant viruses in the sea, has been unveiled by researchers at the University of British Columbia.

The virus, whose genome weighs in at 1.39 million bases of DNA, is one of the largest giant viruses ever isolated, and the largest known to infect zooplankton.

“Bodo saltans virus is one of the few giants we’ve characterized that infects a common and ecologically important host,” says University of British Columbia researcher Curtis Suttle. “It’s representative of the most abundant giant viruses in the sea, yet until BsV was discovered, there was no way to investigate these viruses in the lab.”

Because Bodo saltans virus (BsV) has to compete with a multitude of other viruses to infect its plentiful host-a microzooplankton called Bodo saltans-it comes armed to the hilt. It possesses an arsenal of toxins and DNA cutting enzymes, which likely interfere with other viruses trying to replicate inside the host.

During infection, BsV maneuvers towards the rear of the host cell and releases its viral genome. It appears that as BsV evolved it stole genetic machinery from the host to help in the infection process.

BsV doesn’t carry transfer RNA (tRNA), part of the replication machinery all other giant viruses carry. It does, however, carry tRNA repair genes, making it likely that the virus uses the host’s own tRNA during infection. Again, these genes appear to have been coopted by the virus directly from the host.

More than 10 per cent of BsV’s genome encodes the same group of proteins that are likely involved in combating the host’s antiviral system.

“These genes are actively being duplicated in an accordion-like mechanism in the periphery of the viral genome,” says UBC graduate student Christoph Deeg, first author on the paper. “This suggests that the virus is engaged in an evolutionary arms race with its host, and could offer on explanation of how the genomes of giant viruses could reach their impressive complexity.”

Giant viruses have much more DNA than typical viruses, enabling them to produce a multitude of proteins that allows them to replicate largely independently of their host.

Although researchers knew BsV-like viruses existed based on sequenced environmental DNA, only now has a representative virus been captured and studied in the lab. The Bodo saltans virus was isolated in samples from UBC’s Nitobe Memorial Garden.

The researchers describe it in eLife.

The kinetoplastid-infecting Bodo saltans virus (BsV), a window into the most abundant giant viruses in the sea

Source:

https://science.ubc.ca/news/researchers-capture-first-representative-most-abundant-giant-viruses-sea

Tagged with:

About author

Related Articles