Ricin

Quarterly-SFG-Jan-to-March
SFG FRC 2026

News: On 7 November, Gujarat ATS allegedly seized 4 kg castor-bean mash from Hyderabad doctor planning ricin extraction and surveying markets in Delhi and Ahmedabad as potential attack sites.

About Ricin

Source – Discovery
  • Ricin is the byproduct that remains after oil has been extracted from castor seeds.
  • It is a toxic glycoprotein that shuts down protein synthesis in mammalian cells and causes cell death.
  • It was first isolated in 1888 by the German scientist Peter Hermann Stillmark from castor seeds.
  • Biochemistry
    • Ricin is classified as a type 2 ribosome-inactivating protein (RIP).
      • Whereas type 1 RIPs are composed of a single protein chain that possesses catalytic activity,
    • Type 2 RIPs, also known as holotoxins, are composed of two different protein chains that form a heterodimeric complex.
  • Weapon agent: It is classified as a Grade B biological weapon agent by the US Centers for Disease Control and Prevention and as a Schedule 1 chemical warfare agent under the Chemical Weapons Convention.
  • Uses of Ricin
    • Ricin can be used as a terrorism agent in the form of a powder, mist, pellet, or can be dissolved in water or weak acid.
    • Ricin has been used experimentally in medicine in bone marrow transplants and to kill cancer cells.
  • Processes ricin poisoning: Poisoning can take place by inhalation of liquid or powdered ricin released into the air.
  • Cure of ricin poisoning
    • There is no specific cure or antidote for ricin poisoning.
    • If exposure happens, Avoid exposure first, and if exposed, remove ricin from the body as quickly as possible.
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