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Infrared absorption of tyrosine side chains in proteins

✍ Scribed by E. G. Bendit

Publisher
Wiley (John Wiley & Sons)
Year
1967
Tongue
English
Weight
454 KB
Volume
5
Category
Article
ISSN
0006-3525

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✦ Synopsis

Poly-irtyrosine absorbs strongly a t 1515 cm.-l, and a band a t this frequency has been found in a number of proteins and has been assigned to the tyrosine residue. The assignment was confirmed by examination of spectra of deuterated proteins, which nsrially exhibit a residual band a t 1513 an.-'.

In proteins, this band correlates linearly with known tyrosine content, but the point corresponding to poly-rrtyrosine itself does not fall on the correlation line. The possibility and limitations of using the infrared method for tyrosine determinations is discussed.

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