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A PHASE RULE STUDY OF THE PROTEINS OF THE BLOOD SERUM: A COMPARISON OF THE PROTEINS OF HUMAN, RAT, AND HORSE SERUM.

E Jameson¹, D B Roberts

¹Department of Medicine, Stanford University School of Medicine, San Francisco.

The Journal of General Physiology

|October 30, 2009

Summary

Four distinct protein types exist in blood serum, differing based on solubility. These proteins exhibit hydration and show variations between sexes and species.

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Area of Science:

Biochemistry
Proteomics
Analytical Chemistry

Background:

Blood serum contains complex protein mixtures.
Understanding serum protein composition is crucial for diagnostics and research.
Previous characterization methods have limitations.

Purpose of the Study:

To identify and characterize the different types of proteins present in blood serum.
To investigate the physical states and interactions of serum proteins.

Main Methods:

Analysis of solubility curves to differentiate protein types.
Characterization of solid protein phases and their hydration properties.

Main Results:

Identification of four distinct protein types in blood serum based on solubility.
Determination that these proteins exist as single entities, compound series, or solid solutions.
Confirmation that solid protein phases are hydrated.
Observation of significant sex and species-specific differences in serum protein profiles.

Conclusions:

Blood serum protein composition is heterogeneous and can be classified into four main types.
Protein hydration and solubility are key characteristics.
Sex and species are significant factors influencing serum protein makeup.