Nitroprusside reaction
The nitroprusside reaction is a chemical test used to detect the presence of free thiol groups of cysteine in proteins. Proteins with the free thiol group give a red colour when added to sodium nitroprusside with ammonium hydroxide. Some proteins test positive when denatured, indicating that thiol groups are liberated.[1][2][3] The nitroprusside reaction is usually used for the identification of ketones in urine testing.[4]
References
- ^ Chatterjea (1 January 2004). Textbook of Biochemistry for Dental/Nursing/Pharmacy Students. Jaypee Brothers Publishers. p. 51. ISBN 978-81-8061-204-6.
- ^ Debajyoti Das (1980). Biochemistry. Academic Publishers. p. 56. ISBN 978-93-80599-17-5.
- ^ R.A. Joshi (2006). Question Bank of Biochemistry. New Age International. p. 64. ISBN 978-81-224-1736-4.
- ^ Jerry Kaneko, Jiro; Harvey, John; Bruss, Michael (2008). Clinical Biochemistry of Domestic Animals. Academic Press. p. 98. ISBN 9780080568829.
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