Ovalbumin is the predominant protein in egg whites. Highlight the amino acids that would give a positive result for the following tests: Fohl's yellow, million's blue, and hopkin's... Ovalbumin is the predominant protein in egg whites. Highlight the amino acids that would give a positive result for the following tests: Fohl's yellow, million's blue, and hopkin's test. Will the ovalbumin give a positive result?
Understand the Problem
The question is asking about ovalbumin, the primary protein found in egg whites, and whether it will positively react in specific tests mentioned (Fohl's yellow, million's blue, and hopkin's test). The user might need to highlight certain amino acids in the provided amino acid sequence related to those tests.
Answer
Ovalbumin would give a positive result for Fohl's yellow, Million’s blue, and Hopkin's tests due to the presence of cysteine, phenylalanine, and tryptophan.
Fohl's yellow test identifies the presence of cysteine (C), Million’s blue test identifies the presence of phenylalanine (F), and Hopkin's test identifies the presence of tryptophan (W). The amino acids cysteine, phenylalanine, and tryptophan are present in the sequence of ovalbumin.
Answer for screen readers
Fohl's yellow test identifies the presence of cysteine (C), Million’s blue test identifies the presence of phenylalanine (F), and Hopkin's test identifies the presence of tryptophan (W). The amino acids cysteine, phenylalanine, and tryptophan are present in the sequence of ovalbumin.
More Information
Fohl's yellow test specifically detects cysteine due to its sulfhydryl group. Millon’s test is unique for detecting phenolic compounds like phenylalanine. Hopkin's test is used to detect indole groups, such as those found in tryptophan.
Tips
Make sure to recognize the unique groups in each amino acid that lead to positive results in each test.
