, Volume 37, Issue 12, pp 1270–1271 | Cite as

Photodynamic studies on acid ribonuclease from pea cotyledons

  • P. S. Phillips
  • Carol A. Phillips


In crude extracts, pea cotyledon acid ribonuclease is not inactivated by photodynamic treatment, but after 150-fold purification it is markedly inactivated when illuminated in the presence of rose bengal at pH 7.1. Data suggests that histidine photo-oxidation reduces catalytic activity.


Purification Catalytic Activity Histidine Crude Extract Rose Bengal 
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Copyright information

© Birkhäuser Verlag 1981

Authors and Affiliations

  • P. S. Phillips
    • 1
  • Carol A. Phillips
    • 1
  1. 1.Harestone ValleyCaterham CollegeCaterham(England)

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