| NTRC | National Toxins Research Center |
|---|---|
| NAT | N-acetyltransferase; natal; neonatal alloimmune thrombocytopenia; no action taken; nonaccidental tra... |
| Nat | native; natural |
| NaT | sodium tartrate |
| CT | Cholera toxins |
|---|---|
| Stx1 | Shiga toxins 1 |
| NAT | N -acetyltransferase |
| NAT | N'-Nitrosoanatabine |
| NAT | N-Acetyltransferase activity |
| bacterial toxins | Toxic substances formed in or elaborated by bacteria; they are usually proteins with high molecular weight and antigenicity; some are used as antibiotics and some to skin test for the presence of or susceptibility to certain diseases. (12 Dec 1998) |
|---|---|
| botulinum toxins | <chemical> Toxins produced by clostridium botulinum. There are at least seven different substances, most being proteins. They have neuro-, entero-, and haemotoxic properties, are immunogenic, and include the most potent poisons known. The most commonly used apparently blocks release of acetylcholine at cholinergic synapses. Pharmacological action: anti-dyskinesia agents. (12 Dec 1998) |
| marine toxins | Toxic or poisonous substances elaborated by marine flora or fauna. They include also specific, characterised poisons or toxins for which there is no more specific heading, like those from poisonous fishes. Clupeotoxin, pahutoxin, prymnesin, scombrotoxin go here. (12 Dec 1998) |
| pertussis toxins | <chemical> Any of various biologically active proteins or toxins elaborated by bordetella pertussis that cause the symptoms of whooping cough. Some activate pancreatic islets, others inhibit the adenylate cyclase cascade and some cause lymphocytosis. Chemical name: Toxins, pertussis (12 Dec 1998) |
| 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. (18 Nov 1997) |
| toxins | Poisons produced by certain animals, plants, or bacteria. (12 Dec 1998) |
| lyngbya toxins | Toxins isolated from any species of the seaweed lyngbya or similar chemicals from other sources, including mollusks and micro-organisms. These have been found to be potent tumour promoters. (12 Dec 1998) |
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