Penitrem A

≥95% (HPLC and TLC)

Tremortin A
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:

Quality Level


≥95% (HPLC and TLC)

storage temp.


SMILES string




InChI key



Penitrem A has been used as Ca2+-Activated K+ (BK) channel blocker to study its effect on BK current in bag cell neurons.


1, 5 mg in glass bottle

Biochem/physiol Actions

Penitrem A intoxication causes ataxia, polypnea, and sustained tremors and may lead to seizures and death. Penitrem A affects the central and peripheral nervous system. It impairs the GABAergic neurotransmission in the cerebellum.

Other Notes

Originally isolated from Penicillium palitans


Skull and crossbones

Signal Word


Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN 2811 6.1 / PGII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Peter R Lewis et al.
The Medical journal of Australia, 182(11), 582-584 (2005-06-09)
We report on an elderly couple who presented with a syndrome that included severe generalised tremor and incoordination after eating soup from a damaged can. Black mould contaminating the can was subcultured and the fungus Penicillium crustosum was identified. This...
Mary K McGahon et al.
Investigative ophthalmology & visual science, 46(9), 3281-3287 (2005-08-27)
By their control of membrane potential and intracellular free Ca(2+) ([Ca(2+)](i)), K(+) currents are pivotal in the regulation of arterial smooth muscle tone. The goal of the present study was to identify and characterize the A-type K(+) current in retinal...
Claudia Welz et al.
PLoS pathogens, 7(4), e1001330-e1001330 (2011-04-15)
The calcium-gated potassium channel SLO-1 in Caenorhabditis elegans was recently identified as key component for action of emodepside, a new anthelmintic drug with broad spectrum activity. In this study we identified orthologues of slo-1 in Ancylostoma caninum, Cooperia oncophora, and...
Léna Borbouse et al.
American journal of physiology. Heart and circulatory physiology, 298(3), H966-H973 (2010-01-02)
This investigation was designed to examine the hypothesis that impaired function of coronary microvascular large-conductance Ca(2+)-activated K(+) (BK(Ca)) channels in metabolic syndrome (MetS) significantly attenuates the balance between myocardial oxygen delivery and metabolism at rest and during exercise-induced increases in...
Karen D McCloskey
The Journal of urology, 173(1), 296-301 (2004-12-14)
Outward currents were characterized from cells resembling interstitial cells of Cajal (ICCs) isolated from the detrusor of the guinea pig bladder. ICC-like cells were studied using the whole cell patch clamp technique and K+ filled pipettes. Outward currents were evoked...

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