A substance that causes hemolysis (the lysis of red blood cells). At least some hemolysins are enzymes that destroy the phospholipids in erythrocyte plasma membranes.

Microbiology. . 2009.

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  • hemolysin — [hē′mō lī΄sin, hem′ōlī′sin; hē mäl′ə sin] n. [< HEMO + Gr lysis, a dissolving + IN1] a substance formed in the blood, as by bacterial action, that causes the destruction of red corpuscles with liberation of hemoglobin …   English World dictionary

  • Hemolysin — Pfam box Symbol = Leukocidin Name = width =250 caption =Alpha hemolysin, a transmembrane heptamer Pfam= PF07968 InterPro= IPR001340 SMART= Prosite = SCOP = TCDB = OPM family= 35 OPM protein= 7ahl PDB=PDB3|1t5rH:57 303 PDB3|1lkfA:60 310 PDB3|2lkfA …   Wikipedia

  • hemolysin — noun Etymology: International Scientific Vocabulary Date: 1900 a substance that causes the dissolution of red blood cells …   New Collegiate Dictionary

  • hemolysin — /hi mol i sin, hee meuh luy , hem euh /, n. Immunol. a substance, as an antibody, that in cooperation with complement causes dissolution of red blood cells. [1895 1900; HEMO + LYSIN] * * * …   Universalium

  • hemolysin — noun Any substance (often an exotoxin) that damages the membranes of red blood cells and thus releases hemoglobin See Also: hemolysis, hemolytic …   Wiktionary

  • hemolysin — 1. Any substance elaborated by a living agent and capable of causing lysis of red blood cells and liberation of their hemoglobin. SYN: erythrocytolysin, erythrolysin. 2. A sensitizing (complement fixing) antibody that combines with red blood… …   Medical dictionary

  • hemolysin — n. substance which causes the dissolution of red blood cells …   English contemporary dictionary

  • hemolysin — he·mo·ly·sin …   English syllables

  • hemolysin — he•mol•y•sin [[t]hɪˈmɒl ɪ sɪn[/t]] n. imu any substance in the blood that initiates the dissolution of red blood cells, as a bacterial toxin • Etymology: 1895–1900 …   From formal English to slang

  • hemolysin — noun any substance that can cause lysis (destruction) of erythrocytes (red blood cells) and the release of their hemoglobin • Syn: ↑haemolysin, ↑erythrolysin, ↑erythrocytolysin • Hypernyms: ↑organic compound • Hyponyms: ↑ …   Useful english dictionary

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