hemolysin


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hemolysin

 [he-mol´ĭ-sin]
a substance that liberates hemoglobin from erythrocytes by interrupting their structural integrity.

he·mol·y·sin

(hē-mol'i-sin),
1. Any substance elaborated by a living agent and capable of causing lysis of red blood cells and liberation of their hemoglobin. Synonym(s): erythrocytolysin, erythrolysin
2. A sensitizing (complement-fixing) antibody that combines with red blood cells of the antigenic type that stimulated formation of the hemolysin, a fixing complement with the antibody-cell union resulting in lysis of the cells.

hemolysin

/he·mol·y·sin/ (he-mol´ĭ-sin) a substance that liberates hemoglobin from erythrocytes by interrupting their structural integrity.

hemolysin

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

hemolysin

[himol′əsin]
Etymology: Gk, haima + lysis, loosening
any one of the numerous substances that lyse or dissolve red blood cells. Hemolysins are produced by bacterial strains, including staphylococci and streptococci, and are contained in venoms and vegetables. Bacterial hemolysins are divided into those that are filterable and those that cluster around the bacterial colony on a culture medium containing red blood cells. Hemolysins appear to aid the invasive power of bacteria. Also spelled haemolysin. See also hemoglobin, hemolysis.

he·mol·y·sin

(hē-mol'i-sin)
1. Any substance elaborated by a living agent and capable of lysing red blood cells and liberating their hemoglobin.
Synonym(s): erythrocytolysin, erythrolysin, haemolysin.
2. A sensitizing (complement-fixing) antibody that combines with red blood cells of the antigenic type that stimulated formation of the hemolysin, so that complement fixes with the antibody-cell union and causes dissolution of the cells.

he·mol·y·sin

(hē-mol'i-sin)
1. Any substance elaborated by a living agent and capable of lysing red blood cells and liberating their hemoglobin.
Synonym(s): erythrocytolysin, erythrolysin, haemolysin.
2. A sensitizing (complement-fixing) antibody that combines with red blood cells of the antigenic type that stimulated formation of the hemolysin.
Synonym(s): haemolysin.

hemolysin

a substance that liberates hemoglobin from erythrocytes by interrupting their structural integrity.
References in periodicals archive ?
The targeted virulence factors included Panton Valentine leucocidin (PVL), toxic shock syndrome toxin, and alpha and beta hemolysins.
Real time PCR (RT-PCR) assay was conducted to assess expression of alpha hemolysin (hla) under SNPs treatment.
Clinical sample wise production of virulence factors like Gelatinase, hemolysin, Biofilm formation and esp gene expression are shown in Table 3.
Reduced virulence of Serpulina hyodysenteriae hemolysin negative mutants in pigs and their potential to protect pigs against challenge with a virulent strain.
Virulence assays for plasma coagulase, phospholipase (Pz), protease (Prz), and hemolysin (Hz) production were carried out as per the methods of Deorukhkar and Saini.
Secreted extracellular hemolysin and cytolytic enterotoxin by bacteria are reported to be important for causing certain lytic activities in host cells (Watanabe et al.
The ehxA gene encoding the EHEC hemolysin was detected in the same isolate.
Molecular analysis of the plasmid encoded hemolysin of Escherichia coli O157:H7 strain 933.
Parret and De Mot also anticipated that Usp may be a 600 amino acid protein containing N terminal extension homologous with hemolysin coregulated pilus produced by Vibrio cholerae (10) Future study should seek to purify native Usp from wild-type UPEC strains to clarify whether Usp is 346 amino acid protein as described by Kurazono et al.