Date post: | 19-Dec-2015 |
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The construction of cells
•DNA or RNA
•Protein
•Carbohydrates
•Lipid etc.
04
Amino Acid Sequences of Cytochromes c from 38 species
A phylogenetic tree of cytochrome c
Isoelectric point of protein
• pH < pI
• Protein is positive charge.
• pH > pI
• Protein is negative charge.
One subunit of the enzyme glyceraldehyde-3-phosphate dehydrogenase from Bacillus stearothermophilus.
Major biological functions of protein
• Catalytic proteins: A+B C
• Structural proteins
• Transport proteins
• Regulatory proteins
• Protective proteins : antibodies
enzyme