See Also: unguis avis(medicine)
calcar avis(medicine)
nidus avis(medicine)
rara avis(dictionary)
Herbal medicine (botanical medicine, herbology, phytomedicine)(health)
Streptococcal(medicine)
streptococcal infections(medicine)
streptococcal lymphadenitis(medicine)
streptococcal fibrinolysin(medicine)
streptococcal nuclease(medicine)

streptococcal toxins (medicine) and unguis avis (medicine)


streptococcal toxins (medicine)


streptococcal toxins
Group of haemolytic exotoxins released by Streptococci. _ haemolysin: 26-39 Kd (four types), forms ring like structures in membranes (see Streptolysin O). Lipid target unclear. _ haemolysin: a hot cold haemolysin with sphingomyelinase C activity. _ haemolysin: complex of two proteins (29 and 26 kD) that act synergistically, rabbit erythrocytes particularly sensitive. _ toxin: heat stable peptide (5 kD) with high proportion of hydrophobic amino acids. Seems to act in a detergent like manner (c.f. Subtilysin), but may form hydrophilic transmembrane pores by cooperative interaction with Other _ toxin molecules. Leucocidin (Panton Valentine leucocidin): two components f (fast migration on CM cellulose column: 32 kD) and s (slow: 38 kD). Mode of action contentious.

See: Streptococcus, streptolysins O and S, erythrogenic toxin.


unguis avis (medicine)


unguis avis -->
calcar avis


The lower of two elevations on the medial wall of the posterior horn of the lateral ventricle of the brain, caused by the depth of the calcarine sulcus.

Synonym: Haller's unguis, hippocampus minor, minor hippocampus, Morand's spur, unguis avis.