Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


 (hĭ-mŏl′ĭ-sĭn, hē′mə-lī′-)
An agent or substance, such as an antibody or a bacterial toxin, that causes the destruction of red blood cells, thereby liberating hemoglobin.


(hɪˈmɒl ɪ sɪn)

any substance in the blood that initiates the dissolution of red blood cells, as a bacterial toxin.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hemolysin - any substance that can cause lysis (destruction) of erythrocytes (red blood cells) and the release of their hemoglobin
organic compound - any compound of carbon and another element or a radical
streptolysin - any of several hemolysins derived from strains of streptococcus
References in periodicals archive ?
This patent broadly claims composition of matter for antibodies that cross-neutralize Staphylococcus aureus alpha hemolysin and up to four additional S.
The isolate, confirmed as serotype 2 by using the coagglutination test (8), did not produce the virulence markers muramidase-released protein, extracellular factor, or the hemolysin suilysin.
By using the primers described by Voth et al, (5) PCR detected the gene encoding the hemolysin, sordellilysin (sdl), in the C sordellii isolate.
2] 5-10% cultivation demand 2 Saboraud-dextrose 26 agar growing Aerial micelia 26 development Characteristic odor 26 on cultures Staphylococci [beta] hemolysin cocultivation CAMP 10,11 Rhodococcus equi cocultivation Motility 32 Pin point colonies 8,10,12,50 surrounded by hemolysis Catalase 8,10,12,26,50 Oxidase 12 Lactose fermentation 32 Results or positivity percentage (%) Character Evaluated strains Gram positive + cocobacilli, sometimes pleomorphic Gelatine degradation - Microaerophilic and + C[O.
These include alpha-hemolysin, beta hemolysin, and Penton Valentine leucocidin (PVL), and toxic shock syndrome toxin (TST).
2012), leptospirosis causes hemolytic anemia and capillary damage because of the hemolysin expressed by the bacteria.
Hemolysin production was established on Columbia blood agar with 5% sheep blood (OXOID, United Kingdom), as previously described [16].
Patients with paroxysmal cold hemoglobinuria have a biphasic hemolysin referred to as the Donath-Landsteiner antibody, which most often has anti-P specificity.
Enterococcus also secrete hemolysin (cytolysin protein), a bacterial toxin that produce haemolytic activity against erythrocytes of human, horse and rabbit.
The three-dimensional structure of a putative hemolysin from Streptococcus thermophilus was used as a template for homology modeling.
Cell vacuolation, a manifestation of the El Tor hemolysin of Vibrio cholerae.