Table 1.

Predicted molar mass, M, and partial specific volume, v, of protein molecules or hypothetical protein complexes

Protein sample M from sequence Measured v Estimated vb 
  cm3/g (95% CIa) cm3/g@20°C 
Control BSA 66.4 kD 0.743 (0.742–0.744) 0.733c 
SKp 11.0 kD 0.726 (0.704–0.748)  
CaM 16.7 kD 0.705 (0.702–0.709)  
1SKp/1CaMd 27.8 kD 0.721 (0.709–0.732)  
2SKp/1CaM 38.7 kD  0.717 
1SKp/2CaM 44.4 kD  0.711 
2SKp/2CaM 55.4 kD  0.721e 
Protein sample M from sequence Measured v Estimated vb 
  cm3/g (95% CIa) cm3/g@20°C 
Control BSA 66.4 kD 0.743 (0.742–0.744) 0.733c 
SKp 11.0 kD 0.726 (0.704–0.748)  
CaM 16.7 kD 0.705 (0.702–0.709)  
1SKp/1CaMd 27.8 kD 0.721 (0.709–0.732)  
2SKp/1CaM 38.7 kD  0.717 
1SKp/2CaM 44.4 kD  0.711 
2SKp/2CaM 55.4 kD  0.721e 
a

CI, confidence interval.

b

Determined with UltraScan III software using Solution Management.

c

From Sigma-Aldrich product information sheet.

d

With 4× molar Ca2+.

e

Assuming 2/2 instead of 1/1 during measurement, v is the same.

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