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Archaeal viruses play a crucial role in the ecosystems of extremophilic archaea, particularly those belonging to the phyla Euryarchaeota and Crenarchaeota. By shaping host evolution and facilitating gene transfer, these viruses influence microbial communities and contribute to genetic diversity in extreme environments. The archaea they infect thrive in acidic hot springs and hydrothermal vents characterized by high temperatures and low pH. Archaeal viruses exhibit remarkable structural...
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Viruses are extraordinarily diverse in shape and size, but they all have several structural features in common. All viruses have a core that contains a DNA- or RNA-based genome. The core is surrounded by a protective coat of proteins called the capsid. The capsid is composed of subunits called capsomeres. The capsid and genome-containing core are together known as the nucleocapsid.
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During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA.  Marilyn Kozak discovered that the sequence RCCAUGG (where R...
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Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
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Generation and Assembly of Virus-Specific Nucleocapsids of the Respiratory Syncytial Virus
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Arthritogenic Alphavirus Capsid Protein.

Shambhavi Rao1, Adam Taylor1

  • 1Emerging Viruses, Inflammation and Therapeutics Research Group, Gold Coast Campus, Menzies Health Institute Queensland Griffith University, Southport, QLD 4222, Australia.

Life (Basel, Switzerland)
|April 3, 2021
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Arthritogenic alphavirus capsid protein is vital for viral infection and assembly. Targeting this protein offers promising therapeutic and diagnostic strategies against polyarthritis epidemics.

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antiviralscapsidold world alphavirusesvaccines

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Area of Science:

  • Virology
  • Immunology
  • Public Health

Background:

  • Old World and arthritogenic alphaviruses cause polyarthritis epidemics, posing significant public health challenges.
  • The alphavirus capsid protein plays essential roles in viral replication, including genome encapsulation and virion assembly.

Purpose of the Study:

  • To review the functions of arthritogenic alphavirus capsid protein.
  • To explore therapeutic and diagnostic strategies targeting capsid protein.

Main Methods:

  • Literature review of studies on alphavirus capsid protein function.
  • Analysis of research on capsid protein-based therapeutic and diagnostic approaches.

Main Results:

  • Capsid protein is a multifunctional component critical for alphavirus infection.
  • Targeting capsid protein presents viable avenues for novel treatment and diagnosis.

Conclusions:

  • The arthritogenic alphavirus capsid protein is a key target for developing new medical interventions.
  • Further research into capsid protein functions can lead to effective strategies against alphaviral diseases.