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Elastin (Structure (Primary Structure (Tropoelastin polypeptide (composed…
Elastin
Structure
Primary Structure
Tropoelastin polypeptide
composed of
Glycine
Alanine
Valine
Lysine
Proline
Secondary Structure
Desmosine
created by
oxidative deamination by lysyl oxidase
Tertiary Structure
connected to
glycoprotein microfibrils
Elastinopathies
Marfan Syndrome
caused by
mutations in fibrillin-1
causes
impaired structural integrity
AAT deficiency
caused by
mutations in alpha 1 antitrypsin
leads to
misfolded aggregates of AAT in liver
causes
unopposed neutrophil elastase action
which leads to
degraded alveolar elastin and pulmonary damage