BIOS 195 Exam 3 - 2. capsid –Answer Outer protein coat of a virus

SUBSCRIBE

BIOS 195 Exam 3

• viron

–Answer complete, fully developed viral particle

• capsid

–Answer Outer protein coat of a virus

• nucleocapsid

–Answer the capsid together with the nucleic acid

• core of virus

–Answer nucleic acid (DNA or RNA)

• envelope (virus structure)

–Answer made of lipids; the outermost layer of SOME viruses that protects the genetic material when traveling between host cells

• genome

–Answer the complete instructions for making an organism, consisting of all the genetic material in that organism's chromosomes

• structural proteins

–Answer provide physical stability and movement

• C gene, Prm, and E

–Answer What are the structural proteins of West Nile virus

• Non-structural proteins 1 / 3

SUBSCRIBE

–Answer Not inside the structure of the Virion (used during growth)

• NS1, NS12A, NS2B, NS3, NS4A, 2K, NS4B, and NS5

–Answer What are the structural proteins of West Nile virus?

• matrix protein

–Answer between nucleocapsid and envelope

• Substrate

–Answer The reactant on which an enzyme works.

• protease

–Answer enzyme that breaks down proteins

• RNA dependent RNA polymerase

–Answer the enzyme that uses RNA as a template to produce RNA. By in large absent from the host cells, it has to be either carried in by the virions or encoded by the viral genome

• Polyprotein

–Answer a large protein expressed from a single gene and subsequently cleaved to form several individual proteins

• icosahedron

–Answer a polyhedron with 20 faces

• Triangulation number

–Answer For icosahedral capsids this is based on how many structural units make up individual triangles.

• C protein

–Answer 2 / 3

SUBSCRIBE

part of the thick filament; involved in holding the tails of myosin in a correct spatial arrangement

• Monomer

–Answer A simple compound whose molecules can join together to form polymers

• tetramer

–Answer a polymer comprising four monomer units.

• E protein

–Answer Envelope protein. Helps in assembling the virus within host cells and supports release of the virus from host cells.

• budding

–Answer envelopes of proteins are creating by this process which involves the host cell membrane

• NS1 protein

–Answer A viral protein that interferes host cell antiviral pathways and polyadenylation of cellular mRNA, shutting down cellular RNA activity

• only one

–Answer The WNV genome is essentially the same as an mRNA; it even has a 5' cap. When this mRNA is translated by a ribosome, how many proteins are made?

• It can serve as an mRNA molecule

–Answer What is an accurate description of the WNV genome

• False

–Answer T or F? the E protein of WNV is organized as a complex of 3 proteins that covers the surface of the virus

• / 3