• Home
  • Sitemap
  • Help
  • Technical Support
  • Contact
Other Toxins
You are here: Product Lines > Natural Products / Antibiotics > Toxins > Other Toxins
Toolbar - View Selection
 
 Items 1-20 of 39 Page 1 of 2 Select Page: 1 2  >>  
ALX-167-001 Revised 25-Sep-07
Sarafotoxin S6b
Add to Clipboard
PRODUCT LINE Signal Transduction
PRODUCT CATEGORY Endothelins [ETs] & Endothelin Receptors / Related Products
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-167-001-PC01   0.1 mg* 80.00 USD Add To Cart
ALX-167-001-PC05   0.5 mg* 280.00 USD Add To Cart
ALX-167-001-P001   1 mg* 530.00 USD Add To Cart
Product Specification
SEQUENCE: H-Cys-Ser-Cys-Lys-Asp-Met-Thr-Asp-Lys-Glu-Cys-Leu-Tyr-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-OH
(Disulfide bonds between Cys1-Cys15 and Cys3-Cys11)
FORMULA: C110H159N27O34S5
MW: 2564.0
CAS NUMBER: 116303-65-2
SOURCE/HOST: Synthetic. Originally isolated from Atractaspis engaddensis.
QUANTITY: *Sold as net peptide weight.
PURITY: ≥97%
APPEARANCE: White lyophilized powder.
SOLUBILITY: Soluble in 5% acetic acid.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HAZARD: TOXIC.
Product Description
Potent vasoconstrictor peptide. Causes hydrolysis of phosphoinositides in atrial and brain membranes.
Product Specific Literature References
Sarafotoxin, a novel vasoconstrictor peptide: phosphoinositide hydrolysis in rat heart and brain: Y. Kloog, et al.; Science 242, 268 (1988) Abstract
Similarity of endothelin to snake venom toxin: Nature 335, 303 (1988) Abstract
Sarafotoxins S6: several isotoxins from Atractaspis engaddensis (burrowing asp) venom that affect the heart: C. Takasaki, et al.; Toxicon 26, 543 (1988) Abstract
Competitive interaction between endothelin and sarafotoxin: Binding and phosphoinositides hydrolysis in rat atria and brain: I. Ambar, et al.; BBRC 158, 195 (1989) Abstract
Functional endothelin/sarafotoxin receptors in the rat uterus: D. Bousso-Mittler, et al.; BBRC 162, 952 (1989) Abstract
Immunological and structural characterization of sarafotoxin/endothelin family of peptides: G. Fleminger, et al.; BBRC 162, 1317 (1989) Abstract
Biochemical identification of two types of phenamil binding sites associated with amiloride-sensitive Na+ channels: R. Galron, et al.; BBRC 163, 936 (1989) Abstract
Interaction of synthetic sarafotoxin with rat vascular endothelin receptors: Y. Hirata, et al.; BBRC 162, 441 (1989) Abstract
Synthesis of endothelin-1 analogues, endothelin-3, and sarafotoxin S6b: structure-activity relationships: N. Nakajima, et al.; J. Cardiovasc. Pharmacol. 13, S8 (1989) Abstract
Sarafotoxin S6c is a relatively weak displacer of specifically bound 125I-endothelin: W.G. Nayler, et al.; BBRC 161, 89 (1989) Abstract
Vasoconstrictor effects of sarafotoxins in rabbit aorta: structure- function relationships: Z. Wollberg, et al.; BBRC 162, 371 (1989) Abstract
Comparison of the contractile effects and binding kinetics of endothelin-1 and sarafotoxin S6b in rat isolated renal artery: P.S. Devadason & P.J. Henry; Br. J. Pharmacol. 121, 253 (1997) Abstract
Further Categories Containing This Product:
Peptides • Other Toxins
 
 
ALX-167-002 Revised 25-Sep-07
Sarafotoxin S6c
Add to Clipboard
PRODUCT LINE Signal Transduction
PRODUCT CATEGORY Endothelins [ETs] & Endothelin Receptors / Related Products
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-167-002-PC01   0.1 mg* 80.00 USD Add To Cart
ALX-167-002-PC05   0.5 mg* 280.00 USD Add To Cart
ALX-167-002-P001   1 mg* 530.00 USD Add To Cart
Product Specification
SEQUENCE: H-Cys-Thr-Cys-Asn-Asp-Met-Thr-Asp-Glu-Glu-Cys-Leu-Asn-Phe-Cys-His-Gln-Asp-Val-Ile-Trp-OH
(Disulfide bonds between Cys1-Cys15 and Cys3-Cys11)
FORMULA: C103H147N27O37S5
MW: 2515.8
CAS NUMBER: 121695-87-2
SOURCE/HOST: Synthetic. Originally isolated from Atractaspis engaddensis.
QUANTITY: *Sold as net peptide weight.
PURITY: ≥97%
APPEARANCE: White lyophilized powder.
SOLUBILITY: Soluble in 5% acetic acid.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HAZARD: TOXIC.
Product Description
Potent vasoconstrictor peptide. Causes hydrolysis of phosphoinositides in atrial and brain membranes.
Product Specific Literature References
Sarafotoxins S6: several isotoxins from Atractaspis engaddensis (burrowing asp) venom that affect the heart: C. Takasaki, et al.; Toxicon 26, 543 (1988) Abstract
Sarafotoxin S6c is a relatively weak displacer of specifically bound 125I-endothelin: W.G. Nayler, et al.; Biochem. Biophys. Res. Commun. 161, 89 (1989) Abstract
Sarafotoxin S6c: an agonist which distinguishes between endothelin receptor subtypes: D.L. Williams, Jr., et al.; Biochem. Biophys. Res. Commun. 175, 556 (1991) Abstract
Endothelium-dependent modulation of venoconstriction to sarafotoxin S6c in human veins in vivo: F.E. Strachan, et al.; J. Cardiovasc. Pharmacol. 26 Suppl. 3, S180 (1995) Abstract
Simultaneous changes in intracellular calcium and tension induced by endothelin-1 and sarafotoxin S6c in guinea pig isolated gallbladder: influence of indomethacin: A.M. Cardozo, et al.; Can. J. Physiol. Pharmacol. 80, 458 (2002) Abstract
Further Categories Containing This Product:
Peptides • Other Toxins
 
 
ALX-201-294 Revised 06-Aug-08
SpvB (Salmonella enterica) (recombinant) (His)
Add to Clipboard
PRODUCT LINE DNA Regulation / Transcription
PRODUCT CATEGORY Mono(ADP-ribosyl)transferases / Related Products
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-201-294-C010   10 µg 270.00 USD Add To Cart
Product Specification
SOURCE/HOST: Produced in E. coli. Salmonella enterica SpvB is fused at the C-terminus to a His-tag.
CONCENTRATION: 0.5mg/ml
PURITY: ≥98%
PURITY DETAIL: Affinity purified
FORMULATION: Liquid. In PBS containing 50% glycerol.
APPLICATION: Functional application (1:10-1:100): ADP-ribosylation of cytoskeletal actin on R177
SHIPPING: SHIPPED ON DRY ICE
SHORT TERM STORAGE: -20°C
LONG TERM STORAGE: -80°C
HANDLING: Avoid freeze/thaw cycles.
Product Specific Literature References
The spvB gene-product of the Salmonella enterica virulence plasmid is a mono(ADP-ribosyl)transferase: H. Otto, et al.; Mol. Microbiol. 37, 1106 (2000) Abstract; Full Text
Salmonella enterica SpvB ADP-ribosylates actin at position arginine-177-characterization of the catalytic domain within the SpvB protein and a comparison to binary clostridial actin-ADP-ribosylating toxins: H. Hochmann, et al.; Biochemistry 45, 1271 (2006) Abstract
General Information
BACKGROUND/TECHNICAL INFORMATION Swiss-Prot link Q4L1X7: SpvB (salmonella enterica)
General Literature References
Functional aspects of protein mono-ADP-ribosylation: D. Corda & M. Di Girolamo; EMBO J. 22, 1953 (2003) Abstract; Full Text
Targeting of the actin cytoskeleton during infection by Salmonella strains: D.G. Guiney & M. Lesnick; Clin. Immunol. 114, 248 (2005) Abstract
A steric antagonism of actin polymerization by a salmonella virulence protein: S.M. Margarit, et al.; Structure 14, 1219 (2006) Abstract
Related Products
Further Categories Containing This Product:
Recombinant Proteins / Fusion Proteins • Actin / Related Products • Other Toxins
 
 
ALX-270-047 Revised 26-Sep-07
Aristolochic acid
Add to Clipboard
SYNONYMS 8-Methoxy-6-nitrophenanthrol(3,4-d)-1,3-dioxide-5-carboxylic acid
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Other Signal Transduction Pathway Modulators
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-270-047-M025   25 mg 25.00 USD Add To Cart
ALX-270-047-M100   100 mg 90.00 USD Add To Cart
Product Specification
FORMULA: C17H11NO7
MW: 341.3
CAS NUMBER: 313-67-7
MERCK INDEX: 14: 786
RTECS: CF3325000
SOURCE/HOST: Isolated from Aristolochia clematis.
PURITY: ≥97% (~1:1 mixture of aristolochic acids I (A) and II (B))
APPEARANCE: Yellow solid.
SOLUBILITY: Soluble in DMSO or 100% ethanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
HAZARD: MAY BE CARCINOGENIC. TOXIC. MAY BE MUTAGENIC.

Product Description
Phospholipase A2 (PLA2) inhibitor active against the enzymes found in many snake venoms as well as those of human platelets and synovial fluids. Inhibits ionophore-stimulated PLA2 activity in human neutrophils. Has been shown to be nephropathic and carcinogenic.
Product Specific Literature References
Characterization of three edema-inducing phospholipase A2 enzymes from habu (Trimeresurus flavoviridis) venom and their interaction with the alkaloid aristolochic acid: B.S. Vishwanath, et al.; Toxicon 25, 501 (1987) Abstract
Interaction of aristolochic acid with Vipera russelli phospholipase A2: its effect on enzymatic and pathological activities: B.S. Vishwanath & T.V. Gowda; Toxicon 25, 929 (1987) Abstract
Interaction of phospholipase A2 from Vipera russelli venom with aristolochic acid: a circular dichroism study: B.S. Vishwanath, et al.; Toxicon 25, 939 (1987) Abstract
Edema-inducing activity of phospholipase A2 purified from human synovial fluid and inhibition by aristolochic acid: B.S. Vishwanath, et al.; Inflammation 12, 549 (1988) Abstract
Effects of aristolochic acid on phospholipase A2 activity and arachidonate metabolism of human neutrophils: M.D. Rosenthal, et al.; Biochim. Biophys. Acta 1001, 3 (1989) Abstract
Suramin alters phosphoinositide synthesis and inhibits growth factor receptor binding in HT-29 cells: R. Kopp & A. Pfeiffer; Cancer Res. 50, 6490 (1990) Abstract
The effects of the phospholipase A2 inhibitors aristolochic acid and PGBx on A23187-stimulated mobilization of arachidonate in human neutrophils are overcome by diacylglycerol or phorbol ester: M.D. Rosenthal, et al.; Biochim. Biophys. Acta 1126, 319 (1992) Abstract
Evidence for different mechanisms involved in the formation of lyso platelet-activating factor and the calcium-dependent release of arachidonic acid from human neutrophils: J.D. Winkler, et al.; Biochem. Pharmacol. 44, 2055 (1992) Abstract
Selective inhibition of group II phospholipase A2 by quercetin: M. Lindahl & C. Tagesson; Inflammation 17, 573 (1993) Abstract
Detection of DNA adducts formed by aristolochic acid in renal tissue from patients with Chinese herbs nephropathy: H.H. Schmeiser, et al.; Cancer Res. 56, 2025 (1996) Abstract
Aristolochic acid and ’Chinese herbs nephropathy’: a review of the evidence to date: J.P. Cosyns; Drug Saf. 26, 33 (2003), Review Abstract
Effect of aristolochic acid on intracellular calcium concentration and its links with apoptosis in renal tubular cells: Y.H. Hsin, et al.; Apoptosis 11, 2167 (2006) Abstract
Further Categories Containing This Product:
PLA2 Inhibitors • Carcinogens & Tumor Promoters Other Products • Natural Products - Other Tumor Promoters • Other Toxins • Alkaloids
 
 
ALX-270-109 Revised 14-Apr-08
Ophiobolin A
Add to Clipboard
SYNONYMS Cochliobolin A
Ophiobalin
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Other Signal Transduction Pathway Modulators
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-270-109-MC01   0.1 mg 50.00 USD Add To Cart
ALX-270-109-M001   1 mg 220.00 USD Add To Cart
Product Specification
FORMULA: C25H36O4
MW: 400.6
CAS NUMBER: 4611-05-6
RTECS: RL1576000
SOURCE/HOST: Isolated from Bipolaris leersia MST-FP107.
PURITY: ≥95% (HPLC)
APPEARANCE: White to off-white solid.
SOLUBILITY: Soluble in dimethyl formamide, DMSO, 100% ethanol or methanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light.
HAZARD: HARMFUL.

Product Description
Cell permeable antagonist of calmodulin. Inhibits Ca2+/calmodulin-dependent phosphodiesterase. Inhibits P-glycoprotein-mediated transport. Exhibits antibacterial, antitumor and nematocidal activities. Phytotoxic.
Product Specific Literature References
The structure of ophiobolin, a C25 terpenoid having a novel skeleton: S. Nozoe, et al.; JACS 87, 4968 (1965) Abstract
The constitution of cochliobolin: L. Canonica, et al.; THL 7, 1211 (1966)
Ophiobolin A. A natural product inhibitor of calmodulin: P.C. Leung, et al.; J. Biol. Chem. 259, 2742 (1984) Abstract; Full Text
Role of Calmodulin Inhibition in the Mode of Action of Ophiobolin A: P.C. Leung, et al.; Plant Physiol. 77, 303 (1985) Abstract; Full Text
Characterization of the interaction of ophiobolin A and calmodulin: P.C. Leung, et al.; Int. J. Biochem. 20, 1351 (1988) Abstract
Microbial metabolites of ophiobolin A and antimicrobial evaluation of ophiobolins: E. Li, et al.; J. Nat. Prod. 58, 74 (1995) Abstract
The biology of ophiobolins: T.K. Au, et al.; Life Sci. 67, 733 (2000), Review Abstract
Calmodulin and lipid binding to synaptobrevin regulates calcium-dependent exocytosis: S. Quetglas, et al.; EMBO J. 21, 3970 (2002) Abstract; Full Text
Herbicidal potential of ophiobolins produced by Drechslera gigantea: A. Evidente, et al.; J. Agric. Food Chem. 54, 1779 (2006) Abstract
Inhibition of P-glycoprotein-mediated transport by terpenoids contained in herbal medicines and natural products: N. Yoshida, et al.; Food Chem. Toxicol. 44, 2033 (2006) Abstract
Further Categories Containing This Product:
Calmodulin Inhibitors • Phosphodiesterases / Related Products • Natural Products with Antibiotic Activity • MDR Inhibitors • P-glycoprotein [Pgp] / Related Products • Other Toxins • Natural Products - Antitumor Reagents
 
 
ALX-270-209 Revised 05-Apr-08
Etoposide
Add to Clipboard
SYNONYMS 4-Desmethylepipodophyllotoxin 9-(4,6-O-ethylidene)-β-D-glucopyranoside
VP-16-213
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Natural Products - Topoisomerase Inhibitors
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-270-209-M025   25 mg 30.00 USD Add To Cart
ALX-270-209-M100   100 mg 65.00 USD Add To Cart
ALX-270-209-M500   500 mg 260.00 USD Add To Cart
Product Specification
FORMULA: C29H32O13
MW: 588.6
CAS NUMBER: 33419-42-0
MERCK INDEX: 14: 3886
RTECS: KC0190000
SOURCE/HOST: Semisynthetic derivative of podophyllotoxin.
PURITY: ≥99%
APPEARANCE: White to off-white powder.
SOLUBILITY: Soluble in DMSO, dimethyl formamide, ethyl ether or chloroform:methanol (1:1); slightly soluble in methanol or acetone; insoluble in water.
SHIPPING: AMBIENT
LONG TERM STORAGE: +20°C
USE/STABILITY: Store solutions in DMSO at 4°C. For long term storage prepare aliquots and store at -20°C.
HANDLING: Protect from light and moisture.
HAZARD: MAY BE CARCINOGENIC. TOXIC.

Product Description
Antitumor reagent. Topoisomerase II inhibitor. Induces apoptosis by FasL. Activates p53 resulting in upregulated expression of TRAIL-R2 (DR5) and Bak to overcome TRAIL resistance in Bax-deficient human colon carcinoma cancer cells.
Product Specific Literature References
The podophyllotoxin derivatives VP16-213 and VM26: B.F. Issell; Cancer Chemother. Pharmacol. 7, 73 (1982) Abstract
Etoposide: four decades of development of a topoisomerase II inhibitor: K.R. Hande; Eur. J. Cancer 34, 1514 (1998) Abstract
Etoposide sensitivity of human prostatic cancer cell lines PC-3, DU 145 and LNCaP: M. Salido, et al.; Histol. Histopathol. 14, 125 (1999) Abstract
A systematic review of the role of etoposide and cisplatin in the chemotherapy of small cell lung cancer with methodology assessment and meta-analysis: C. Mascaux, et al.; Lung Cancer 30, 23 (2000) Abstract
Distinct pathways for stimulation of cytochrome c release by etoposide: J.D. Robertson, et al.; J. Biol. Chem. 275, 32438 (2000) Abstract; Full Text
Ordering of ceramide formation, caspase activation, and Bax/Bcl-2 expression during etoposide-induced apoptosis in C6 glioma cells: M. Sawada, et al.; Cell Death Differ. 7, 761 (2000) Abstract
Etoposide-induced apoptosis is not associated with the fas pathway in acute myeloblastic leukemia cells: T. Siitonen, et al.; Leuk. Res. 24, 281 (2000) Abstract
Early caspase activation in leukemic cells subject to etoposide-induced G2-M arrest: evidence of commitment to apoptosis rather than mitotic cell death: R.J. Sleiman & B.W. Stewart; Clin. Cancer Res. 6, 3756 (2000) Abstract; Full Text
Cell cycle phase specificity in the potentiation of etoposide-induced DNA damage and apoptosis by KN-62, an inhibitor of calcium-calmodulin- dependent enzymes: M. Aoyama, et al.; Biochem Pharmacol 61, 49 (2001) Abstract
Deacetylase activity associates with topoisomerase II and is necessary for etoposide-induced apoptosis: C.A. Johnson, et al.; J. Biol. Chem. 276, 4539 (2001) Abstract; Full Text
In vitro topo II-DNA complex accumulation and cytotoxicity of etoposide in leukaemic cells from patients with acute myelogenous and chronic lymphocytic leukaemia: Y. Wang, et al.; Leuk. Res. 25, 133 (2001) Abstract
Etoposide: discovery and medicinal chemistry: P. Meresse, et al.; Curr. Med. Chem. 11, 2443 (2004), Review Abstract
Etoposide, topoisomerase II and cancer: E.L. Baldwin & N. Osheroff; Curr. Med. Chem. Anticancer Agents 5, 363 (2005), Review Abstract
Further Categories Containing This Product:
Other Toxins • Natural Products - Apoptosis Inducers & Inhibitors • Natural Products - Antitumor Reagents • Antitumor Agents (Enzyme Inhibitors) • Antitumor Agents (Apoptosis Inducers)
 
 
ALX-270-341 Revised 28-Sep-07
Epoxyquinone G109 (racemic)
Add to Clipboard
PRODUCT LINE Neurobiology
PRODUCT CATEGORY Ceramides / Cerebrosides / Sphingolipids / Related Products
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-270-341-M002   2 mg 190.00 USD Add To Cart
Product Specification
FORMULA: C18H27NO4
MW: 321.4
CAS NUMBER: 163972-12-1 ((+)-enantiomer)
PURITY: ≥98%
APPEARANCE: Pale yellow powder.
SOLUBILITY: Soluble in DMSO or methanol.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
HANDLING: Protect from light.
HAZARD: TOXIC.

Product Description
Potent and selective irreversible inhibitor of neutral sphingomyelinase (N-SMase).
Product Specific Literature References
Manumycin A and its analogues are irreversible inhibitors of neutral sphingomyelinase: C. Arenz, et al.; ChemBioChem 2, 141 (2001) Abstract
Endothelial apoptosis induced by inhibition of integrins αvβ3 and αvβ5 involves ceramide metabolic pathways: A. Erdreich-Epstein, et al.; Blood 105, 4353 (2005) Abstract
Further Categories Containing This Product:
Other Toxins
 
 
ALX-350-012 Revised 23-Oct-08
Microcystin-LR
Add to Clipboard
PRODUCT LINE Natural Products / Antibiotics
PRODUCT CATEGORY Microcystins
Ordering Information
Product Numbers: Format: Size: Unit Price: Quantity: Add To Cart
ALX-350-012-C050   50 µg 24.00 USD Add To Cart
ALX-350-012-C100   100 µg 46.00 USD Add To Cart
ALX-350-012-C500   500 µg 175.00 USD Add To Cart
ALX-350-012-M001   1 mg 330.00 USD Add To Cart
Product Specification
FORMULA: C49H74N10O12
MW: 995.2
CAS NUMBER: 101043-37-2
RTECS: GT2810000
SOURCE/HOST: Isolated from Microcystis aeruginosa.
PURITY: ≥95% (HPLC)
APPEARANCE: Whitish film adhered to inside of the vial.
SOLUBILITY: Soluble in 100% ethanol, methanol or DMSO.
SHIPPING: AMBIENT
LONG TERM STORAGE: -20°C
USE/STABILITY: Stock solutions are stable for up to 6 months when stored at -20°C. Unstable at pH>7.7.
HANDLING: For maximum product recovery after thawing, centrifuge the vial before opening the cap.
HAZARD: MAY BE CARCINOGENIC. VERY TOXIC. HIGHLY IRRITANT.