Heat shock protein beta-6 (HSPB6) is a
protein
Proteins are large biomolecules and macromolecules that comprise one or more long chains of amino acid residue (biochemistry), residues. Proteins perform a vast array of functions within organisms, including Enzyme catalysis, catalysing metab ...
that in humans is encoded by the ''HSPB6''
gene
In biology, the word gene has two meanings. The Mendelian gene is a basic unit of heredity. The molecular gene is a sequence of nucleotides in DNA that is transcribed to produce a functional RNA. There are two types of molecular genes: protei ...
.
HSPB6 is a 17-kDa member of the
heat shock
The heat shock response (HSR) is a cell stress response that increases the number of molecular chaperones to combat the negative effects on proteins caused by stressors such as increased temperatures, oxidative stress, and heavy metals. In a norm ...
family of proteins. HSPB6 was first identified in 1994 when it was isolated from rat and human skeletal muscle as a complex with
HSPB1
Heat shock protein 27 (Hsp27) also known as heat shock protein beta-1 (HSPB1) is a protein that in humans is encoded by the ''HSPB1'' gene.
Hsp27 is a chaperone of the sHsp (small heat shock protein) group among α-crystallin, Hsp20, and others ...
(also known as
HSP27
Heat shock protein 27 (Hsp27) also known as heat shock protein beta-1 (HSPB1) is a protein that in humans is encoded by the ''HSPB1'' gene.
Hsp27 is a chaperone of the sHsp (small heat shock protein) group among α- crystallin, Hsp20, and ot ...
) and
HSPB5 (also known as αB-crystallin).
HSPB6 is expressed in multiple tissues; however, HSPB6 is most highly and constitutively expressed in vascular, airway, colonic, bladder, uterine smooth muscle, cardiac muscle and skeletal muscle. HSPB6 has specific functions for
vasodilation
Vasodilation, also known as vasorelaxation, is the widening of blood vessels. It results from relaxation of smooth muscle cells within the vessel walls, in particular in the large veins, large arteries, and smaller arterioles. Blood vessel wa ...
, platelet function, and
insulin resistance
Insulin resistance (IR) is a pathological response in which cells in insulin-sensitive tissues in the body fail to respond normally to the hormone insulin or downregulate insulin receptors in response to hyperinsulinemia.
Insulin is a horm ...
and in smooth and cardiac muscle.
References
Further reading
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External links
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Heat shock proteins
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