A protein sequencer is a machine that is used to determine the sequence of amino acids in a protein. They work by tagging and removing one amino acid at a time, which is analysed and identified. This is done repetitively for the whole polypeptide, until the whole sequence is established.he two major direct methods of protein sequencing are mass spectrometry and the Edman degradation reaction. It is also possible to generate an amino acid sequence from the DNA or mRNA sequence encoding the protein, if this is known.
Sulfa drugs (also called sulphur drugs or sulfonamide-containing drugs) is an imprecise term that generally refers to drugs that contain a sulfonamide functional group in their chemical structure. These drugs have a variety of uses and can be classified into antibiotics and non-antibiotic drugs.
Sulfa is short for sulfonomides which is a kind of antibiotic. Sulfonomides are not chemically related to sulpher or sulpher salts i.e. sulfates, sulfites-these dont not cause the same allergic reaction that you see with sulfonomide antibiotics. You should be careful with both kinds of drugs however as you can be allergic to both as I am. I get the same allergic reaction to both. Allergy to sulfa drugs is a popular term for related medications. Once allergic: sulfites, nickel and even tea laurel sulfate (found in soaps, shampoos, etc.), can cause irritation or an allergic response.