Types of Compounds. Ionic compounds are compounds composed of ions, charged particles that form when an atom (or group of atoms, in the case of polyatomic ions) gains or loses electrons. 1  A cation is a positively charged ion. 2  An anion is a negatively charged ion.
Porins are members of an extended family of transmembrane proteins found in the outer membrane of gram negative bacteria such as E. coli, or in the outer membranes of mitochondria in eukaryotes. The general porins provide a simple diffusion pathway across the membrane for molecules less than 1 kDa with little substrate selectivity.
Non-structural protein 1, which is encoded by the influenza A virus, is an RNA-binding protein that is required for virus replication. NS1 has three different RNA-binding activities. First, it binds to the poly A tails of cellular (not viral) pre-mRNAs.on-structural protein 1, which is encoded by the influenza A virus, is an RNA-binding protein that is required for virus replication. NS1 has three different RNA-binding activities. First, it binds to the poly A tails of cellular (not viral) pre-mRNAs.