Amyloid - Amyloid biophysics

Amyloid describes various types of protein aggregations that share specific traits when examined microscopically. The name amyloid comes from the early mistaken identification of the substance as starch (amylum in Latin), based on crude iodine-staining techniques. For a period the scientific community debated whether or not amyloid deposits were fatty deposits or carbohydrate deposits until it was finally resolved that it was neith ...

Including:

• Amyloid - Diseases featuring amyloid
• Amyloid - Non-disease amyloids
• Amyloid - Disease relation disputed
• Amyloid - Amyloid biophysics
• Amyloid - Histological staining

Read more here: » Amyloid: Encyclopedia - Amyloid

The amyloid fold is characterized by a cross-beta sheet quaternary structure, that is, a monomeric unit contributes a beta strand to a beta sheet which spans across more than one molecule. While amyloid is usually identified using fluorescent dyes, stain polarimetry, circular dichroism, or FTIR (all indirect measurements), the "gold-standard" test to see if a structure is amyloid is by placing a sample in an X-ray diffraction beam; there are two characteristic scattering bands produced at 4 and 10 angstroms (0.4 nm and 1.0 nm}, corresponding to the inte ...

See also:

Amyloid, Amyloid - Diseases featuring amyloid, Amyloid - Non-disease amyloids, Amyloid - Disease relation disputed, Amyloid - Amyloid biophysics, Amyloid - Histological staining

Read more here: » Amyloid: Encyclopedia II - Amyloid - Amyloid biophysics