Heat shock proteins
nounPronunciation: /hiːt ʃɒk ˈproʊtinz/
Molecular chaperone proteins synthesized under elevated temperature stress that protect other proteins from denaturation and facilitate their proper folding and aggregation. These highly conserved proteins bind to substrate proteins and use ATP hydrolysis to prevent stress-induced damage.
Plain English
Special proteins plants make during heat stress that protect and repair other damaged proteins.
Etymology & History
Usage
"Heat shock proteins accumulate rapidly in plant cells exposed to temperature extremes, reducing thermal stress injury."
Style guide notes: Abbreviate as HSPs after first mention; classify by molecular weight (HSP70, HSP90) when discussing specific types.
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Frequently Asked Questions
Why are heat shock proteins important for plants?
They stabilize proteins during temperature stress, prevent aggregation, and allow plants to survive thermal extremes.
When are heat shock proteins activated?
Expression increases within minutes of temperature elevation, heat stress duration, or other stressors like drought.
Why Test Candidates on This?
Tested extensively in molecular stress physiology and plant biotechnology examinations.
Required skill level: Mid