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A4665

Alamethicin from Trichoderma viride

≥98% (HPLC)

Synonym(s):

Antibiotic U-22324

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5 mg
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CLP 360,000
10 mg
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25 mg
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CLP 1,210,000

About This Item

CAS Number:
UNSPSC Code:
12352209
NACRES:
NA.77
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
5213858

CLP 360,000


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Quality Segment

assay

≥98% (HPLC)

form

powder

antibiotic activity spectrum

Gram-positive bacteria

mode of action

cell membrane | interferes

storage temp.

2-8°C

SMILES string

CC(C)C[C@H](NC(=O)CNC(=O)C(C)(C)NC(=O)[C@@H](NC(=O)C(C)(C)NC(=O)[C@H](CCC(N)=O)NC(=O)[C@H](C)NC(=O)C(C)(C)NC(=O)[C@H](C)NC(=O)C(C)(C)NC(=O)[C@@H]1CCCN1C(=O)C(C)(C)NC(C)=O)C(C)C)C(=O)NC(C)(C)C(=O)N2CCC[C@H]2C(=O)N[C@@H](C(C)C)C(=O)NC(C)(C)C(=O)NC(C)(C)C(=O)N[C@@H](CCC(O)=O)C(=O)N[C@@H](CCC(N)=O)C(=O)N[C@@H](CO)Cc3ccccc3

InChI

1S/C92H150N22O25/c1-47(2)43-58(72(127)108-92(24,25)84(139)113-41-29-33-59(113)73(128)103-65(48(3)4)75(130)111-90(20,21)82(137)112-89(18,19)80(135)102-56(37-40-64(120)121)70(125)101-55(35-38-61(93)117)69(124)98-54(46-115)44-53-31-27-26-28-32-53)99-63(119)45-95-77(132)85(10,11)110-76(131)66(49(5)6)104-81(136)88(16,17)107-71(126)57(36-39-62(94)118)100-67(122)50(7)96-78(133)86(12,13)106-68(123)51(8)97-79(134)87(14,15)109-74(129)60-34-30-42-114(60)83(138)91(22,23)105-52(9)116/h26-28,31-32,47-51,54-60,65-66,115H,29-30,33-46H2,1-25H3,(H2,93,117)(H2,94,118)(H,95,132)(H,96,133)(H,97,134)(H,98,124)(H,99,119)(H,100,122)(H,101,125)(H,102,135)(H,103,128)(H,104,136)(H,105,116)(H,106,123)(H,107,126)(H,108,127)(H,109,129)(H,110,131)(H,111,130)(H,112,137)(H,120,121)/t50-,51-,54+,55-,56-,57-,58-,59-,60-,65-,66-/m0/s1

InChI key

LGHSQOCGTJHDIL-SLKIUSOBSA-N

General description

Alamethicin is an antibiotic and a cytolytic peptide capable of forming an amphipathic α-helical structure in biological membranes.[1] It is a linear peptaibol, made up of 20 amino acid residues. It belongs to the class of Nonribosomal peptides (NRP) and is loaded with alpha-amino isobutyric acid.[2]

Application

Alamethicin from Trichoderma viride has been used:
  • to examine the effect of glutamate transporters on the Na+/K+-ATPase dependent extracellular K+ transient during neuronal activity[3]
  • to investigate the formation of anion-permeable channels in planar lipid bilayers by magainin I obtained from Xenopus skin[1]
  • to study the permeability of root apical meristem and epidermis and cellulase induced resistance to Alamethicin in Arabidopsis thaliana[2]
  • to study the cytotoxic effects of the phycotoxin okadaic acid and mycotoxins on human intestinal (HT-29) and neuroblastoma (SH-SY5Y) cell lines[4]
  • to analyze the structural variations and biological activity of peptaibols obtained from the Longibrachiatum clade belonging to the genus of filamentous fungi Trichoderma[5]

Biochem/physiol Actions

Alamethicin is responsible for eliciting resistance in plants and is harmful to them by causing lesions and rapid death associated with ribosomal ribonucleic acid (rRNA) cleavage. It can cause permeability of the apical meristem and epidermis in A. thaliana roots. Alamethicin leads to the coiling of tendrils in Bryonia dioica induced by jasmonates.[5]

Analysis Note

A mixture of alamethicin homologs

Other Notes

Ac-2-MeAla-L-Pro-2-MeAla-L-Ala-2-MeAla-L-Ala-L-Glu(NH2)-2-MeAla-L-Val-2-MeAla-Gly-L-Leu-2-MeAla-L-Pro-L-Val-2-MeAla-2-MeAla-L-Glu-L-Glu(NH2)-phenylalaninol

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This Item
A5361A4888A2411
antibiotic activity spectrum

Gram-positive bacteria

antibiotic activity spectrum

Gram-positive bacteria

antibiotic activity spectrum

fungi, yeast

antibiotic activity spectrum

fungi, yeast

mode of action

cell membrane | interferes

mode of action

cell membrane | interferes

mode of action

cell membrane | interferes

mode of action

cell membrane | interferes

Quality Level

300

Quality Level

200

Quality Level

300

Quality Level

300

assay

≥98% (HPLC)

assay

≥98% (HPLC)

assay

~80% (HPLC)

assay

~80% (HPLC)

form

powder

form

DMSO solution

form

powder

form

solid

storage temp.

2-8°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

2-8°C


pictograms

Skull and crossbones

signalword

Danger

hcodes

Hazard Classifications

Acute Tox. 3 Oral

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges



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Global Trade Item Number

SKUGTIN
A4665-10MG04061833374825
A4665-25MG04061833374832
A4665-5MG04061833374849

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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