Description When placed next to the skin, the copper and zinc chains produced a mild electric current. The current was said to treat aches and pains in the joints and…

  • Zinc
  • March 7, 2023
Brown glass bottle of phosphorus, zinc and strychnine pills,

Description Not much is known about why someone would take these pills. Strychnine is a stimulant for the central nervous system and may have been used to treat nerve disorders.…

  • Zinc
  • March 7, 2023
Tube of tuberculin jelly, London, England, 1955

This jelly may have been used to conduct a test to see whether a person has been exposed to bacteria-causing tuberculosis. This test, called the ‘Fluorpa-per test’, was introduced in…

Carbonic anhydrases (or carbonate dehydratases) and inhibitors

The carbonic anhydrases (or carbonate dehydratases) (EC 4.2.1.1) form a family of enzymes that catalyze the interconversion between carbon dioxide and water and the dissociated ions of carbonic acid (i.e. bicarbonate and hydrogen ions). The active site of most carbonic anhydrases contains a zinc ion. They are therefore classified as metalloenzymes. The enzyme maintains acid-base balance and…

Carboxypeptidases function in blood clotting, growth factor production, wound healing, reproduction, and many other processes

A carboxypeptidase (EC number 3.4.16 – 3.4.18) is a protease enzyme that hydrolyzes (cleaves) a peptide bond at the carboxy-terminal (C-terminal) end of a protein or peptide. This is in contrast to an aminopeptidases, which cleave peptide bonds at the N-terminus of proteins. Humans, animals, bacteria and plants…