Definition

Noun: A type of globulin protein found in blood plasma or serum. It is characterized by being alkaline and exhibiting high electrophoretic mobility, meaning it moves rapidly toward the negative electrode (anode) during electrophoresis, a laboratory technique used to separate proteins.

Usage

This is a scientific and medical term used to classify a specific group of plasma proteins based on their chemical properties and behavior in laboratory tests. * The test showed an elevated level of alpha globulin. * Alpha globulin fractions include proteins like alpha-1-antitrypsin and haptoglobin.

Advanced Usage

• The term is often used in the plural form (alpha globulins) to refer to the collective group of proteins within this electrophoretic fraction.
• In clinical reports, it is commonly part of a serum protein electrophoresis (SPEP) test, which separates proteins into albumin, alpha-1, alpha-2, beta, and gamma globulins.

Variants and Related Words

• Alpha-1 globulin (n): A sub-fraction of alpha globulins.
• Alpha-2 globulin (n): A sub-fraction of alpha globulins.
• Hypoalphaglobulinemia (n): A condition characterized by low levels of alpha globulins in the blood.
• Hyperalphaglobulinemia (n): A condition characterized by high levels of alpha globulins in the blood.

Different Meanings

This term has a single, specific meaning in biochemistry and medicine. It does not have common alternative definitions.

Synonyms

• Alpha fraction proteins: A descriptive synonym used in clinical chemistry.
• There are no perfect common-language synonyms for this precise technical term.

Related Phrases

• Globulin electrophoresis: The laboratory process that identifies and measures alpha globulin.
• Acute phase reactant: Many proteins in the alpha globulin fraction, such as C-reactive protein (CRP), are classified as acute phase reactants, meaning their levels increase in response to inflammation.

Noun

1. a globulin in blood plasma or serum that is alkaline and has great electrophoretic mobility