아파민

아파민 속성

아파민 C화학적 특성, 용도, 생산

화학적 성질

Small, highly potent, highly basic polypeptide.

용도

Apamin has been used:

• As a selective inhibitor of small conductance (SKCa) channels in HEK cells.
• To inhibit endothelium-derived relaxing factor (EDHF) mediated responses.
• To block small-conductance Ca₂-activated K current (ISK) in electrophysiological studies in hyperstriatum ventrale, pars caudalis (HVc) neurons.

정의

Occurs in the venom of the honey bee, Apis mellifera; molecular weight of 2027.38.

일반 설명

Apamin is a bee venom component and is strongly basic in nature. It has 18 amino acid residues and two disulphide bonds.

위험도

Central nervous system poison able to cross the blood–brain barrier; neurotoxic; poison.

Safety Profile

Poison by intravenous, parenteral,intracerebral, and intraperitoneal routes. When heated todecomposition it emits toxic fumes of SOx and NOx.

효소 저해제

This bee venom octadecapeptide toxin (FW = 2027.34 g/mol; CAS 24345- 16-2; NCBI Reference Sequence: NP_001011612.1) potently blocks the small-conductance Ca 2+ -activated potassium ion (or SK) channels hSK1 as well as rSK2, with IC50 values of 3.3 nM and 83 pM. It shows greater effectiveness at the SK2 channel (IC50 = 0.06-0.4 nM) than SK1 (IC50 = 1- 12 nM). SK3 (IC50 = 1-13 nM), and SK4 (IC50 = 1 μM) channels, and is active against channels within neurons, vascular endothelium, bladder smooth muscle, and certain cancers. Apamin does not inhibit human cardiac Na + current, L-type Ca 2+ current or other major K+ currents. Structurally, apamin forms a stable structure, consisting of a C-terminal a- helix and two reverse turns, that is stabilized by two disulfide bonds connecting Cys-1 to Cys-11 and Cys-3 to Cys-15. A minor constituent of venom of the bee (Apis mellifera), apamin amounts to only 2-3% (w/w) of its dry venom. The smallest known neurotoxic polypeptide, apamin is derived by proteolytic processing of the 48-residue pre-pro-protein. The precursors of the bee venom constituents apamin and MCD peptide are encoded by two genes in tandem which share the same 3'-exon.

아파민 준비 용품 및 원자재

원자재

준비 용품

아파민 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Shenzhen Nexconn Pharmatechs Ltd	+86-755-89396905 +86-15013857715	admin@nexconn.com	China	10247	58
career henan chemical co	+86-0371-86658258 15093356674;	factory@coreychem.com	China	29826	58
Fuxin Pharmaceutical	+86-021-021-50872116 +8613122107989	contact@fuxinpharm.com	China	10297	58
Hebei Yanxi Chemical Co., Ltd.	+8617531190177	peter@yan-xi.com	China	6011	58
Baoji Guokang Healthchem co.,ltd	+8615604608665 15604608665	dominicguo@gk-bio.com	CHINA	9427	58
BOC Sciences	16314854226; +16314854226	inquiry@bocsci.com	United States	19743	58
Zhejiang J&C Biological Technology Co.,Limited	+1-2135480471 +1-2135480471	sales@sarms4muscle.com	China	10523	58
Hangzhou Go Top Peptide Biotech	0571-88211921	sales1@gotopbio.com	CHINA	2609	58
LEAP CHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	24738	58
Nantong HI-FUTURE Biology Co., Ltd.	+undefined18051384581	sales@chemhifuture.com	China	3136	58

아파민 관련 검색: