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.
1 Review. Sulfacetamide sodium is an antibiotic that fights bacteria on the skin. Sulfacetamide sodium topical (for the skin) is used to treat acne, dandruff, seborrheic dermatitis (red, flaking skin rash), and certain skin infections.Sulfacetamide sodium topical may also be used for purposes not listed in this medication guide. You should not use this medicine if you are allergic to sulfa drugs.You should not use this medicine if you are allergic to sulfacetamide sodium or sulfa drugs. To make sure this medicine is safe for you, tell your doctor if you have: 1  lupus; 2  asthma; or. 3  a sulfite allergy.ou should not use this medicine if you are allergic to sulfa drugs. You should not use this medicine if you are allergic to sulfacetamide sodium or sulfa drugs. To make sure this medicine is safe for you, tell your doctor if you have: 1  lupus; 2  asthma; or. 3  a sulfite allergy.