What type of proteins are those that make up virion particles? Same question is for ribosomal proteins.
Pavel Tkachev
"Proteins can be informally divided into three main classes, which correlate with typical tertiary structures: globular proteins, fibrous proteins, and membrane proteins. Almost all globular proteins are soluble and many are enzymes."
I mean one of this types or subtypes
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Robert Adolf Brinzer
Depends on the species of virus. With Lambda phages the tail proteins are fibrous. With some budding species the capsid is made of a mix of host lipids and viral membrane proteins. The necks of some capsids and internal layers can have globular proteins.
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A.B Bayazid
Capsid Proteins: These proteins make up the outer shell or capsid of the virion. They provide structural integrity to the virus and protect the genetic material inside. Capsid proteins often assemble into repeating subunits that give the capsid its characteristic shape. Tail Proteins: Many bacteriophages have a tail structure that helps them attach to the bacterial host and inject their genetic material into it. Tail proteins are involved in recognizing and binding to specific receptors on the bacterial surface. They also facilitate the injection process. Baseplate Proteins: The baseplate is a complex structure located at the end of the phage tail. It assists in host attachment and serves as a platform for the tail fibers or spikes that interact with the bacterial surface. Baseplate proteins play a role in triggering the injection of viral genetic material into the host cell. Tail Fiber or Spike Proteins: These proteins extend from the baseplate and are responsible for recognizing and binding to receptors on the bacterial cell surface. They determine the host range of the bacteriophage by interacting with specific molecules on the bacterial surface. Portal Protein: This protein is a crucial component of the phage capsid. It forms a channel through which the viral DNA is packaged into the capsid during the assembly process. The portal protein also serves as a connector between the capsid and the tail structure. DNA Packaging Proteins: These proteins are involved in packaging the viral genetic material (DNA) into the capsid. They help ensure that the DNA is efficiently condensed and organized within the capsid. Lysis Proteins: At the end of the infection cycle, many bacteriophages cause the host bacterial cell to lyse (burst), releasing newly formed viral particles. Lysis proteins are responsible for degrading the bacterial cell wall, allowing the release of the phage progeny. Replication and Transcription Proteins: These proteins are responsible for initiating and regulating the replication and transcription of the viral genetic material within the host cell. They ensure the efficient production of new viral genomes and proteins. Host Interaction Proteins: Some bacteriophages produce proteins that manipulate host cellular processes in ways that favor viral replication. These proteins can inhibit host defense mechanisms and redirect cellular resources toward viral reproduction. Assembly and Maturation Proteins: These proteins are involved in the process of virion assembly and maturation. They ensure that the different components of the virion come together correctly and that the virion is structurally stable.
Dear Pavel Tkachev
https://academic.oup.com/gigascience/article/doi/10.1093/gigascience/giac076/6661052
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