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B
Appendix 2.
Proteins with Established Isoelectric Points
Table 6. Examples of Proteins with Known Isoelectric Points
Protein
Albumin, bovine serum
Albumin, human serum
Carbonic anhydrase
Carboxypeptidase
Catalase
Cytochrome C
Fibrinogen
Growth hormone, human
Hemoglobin, horse
Immunoglobulin G
Insulin
Lysozyme, hen egg white
Myoglobin, horse
Ovalbumin
Pepsin
Ribonuclease
Thyroglobulin
Trypsin inhibitor, soybean
Urease
Molecular Weight (kDa)
67
66.5
30
34
250
13
330
21.5
65
150
5.7
14.3
17
40
35.5
14
660
22.5
480
Iso-Electric Point (pI)
5.5
4.8
7.3
6.0
5.6
10.6
5.5
6.9
6.9
6.4-7.2
5.3
11.0
7.0
4.6
< 1.0
7.8
4.6
4.55
5.1
BIOTEK
CORPORATION
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