tatM2NX   Click here for help

GtoPdb Ligand ID: 11080

Synonyms: tat-M2NX
Compound class: Peptide or derivative
Comment: TatM2NX is a cell permeable peptide-inhibitor (antagonist) of the transient receptor potential melastatin 2 (TRPM2) ion channel [1]. The M2NX portion of the peptide targets the Nudix motif ADP ribose binding site at the C-terminal of the TRPM2 channel and the N terminus tat-human immunodeficiency virus (HIV) sequence YGRKKRRQRRR mediates cell permeability. TatM2NX can be used as a tool to study TRPM2's role in brain physiology and pathophysiology, and its clinical potential as a novel neuroprotective target for the treatment of neurological diseases.
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2D Structure
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2D Structure

An image of the ligand's 2D structure. For small molecules with SMILES these are drawn using the NCI/CADD Chemical Identifier Resolver. Click on the image to access the chemical structure search tool with the ligand pre-loaded in the structure editor. For other types of ligands, e.g. longer nucleotides and peptides, a manually drawn representation of the molecule may be provided.

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SMILES / InChI / InChIKey
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SMILES / InChI / InChIKey

SMILES (Simplified Molecular Input Line Entry Specification) A specification for unambiguously describing the structure of chemical molecules using short ASCII strings. Canonical SMILES specify a unique representation of the 2D structure without chiral or isotopic specifications. Isomeric SMILES include chiral specification and isotopes.

Standard InChI (IUPAC International Chemical Identifier) and InChIKey InChI is a non-proprietary, standard, textual identifier for chemical substances designed to facilitate linking of information and database searching. An InChIKey is a simplified version of a full InChI, designed for easier web searching.

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Canonical SMILES NCCCC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)O)C(C)C)Cc1c[nH]c2c1cccc2)Cc1ccccc1)CCC(=O)O)CCC(=O)N)CCCNC(=N)N)CC(C)C)C(C)C)CCCNC(=N)N)CCCCN)CC(C)C)NC(=O)[C@@H](NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@H](Cc1ccc(cc1)O)N)CCCNC(=N)N)CCCCN)CCCCN)CCCNC(=N)N)CCCNC(=N)N)CCC(=O)N)CCCNC(=N)N)CCCNC(=N)N)CCCNC(=N)N)CO)CCCNC(=N)N)CCC(=O)O)CCC(=O)O)CCSC)CC(C)C)CCCNC(=N)N
Isomeric SMILES NCCCC[C@@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)O)C(C)C)Cc1c[nH]c2c1cccc2)Cc1ccccc1)CCC(=O)O)CCC(=O)N)CCCNC(=N)N)CC(C)C)C(C)C)CCCNC(=N)N)CCCCN)CC(C)C)NC(=O)[C@@H](NC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H]1CCCN1C(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)[C@@H](NC(=O)CNC(=O)[C@H](Cc1ccc(cc1)O)N)CCCNC(=N)N)CCCCN)CCCCN)CCCNC(=N)N)CCCNC(=N)N)CCC(=O)N)CCCNC(=N)N)CCCNC(=N)N)CCCNC(=N)N)CO)CCCNC(=N)N)CCC(=O)O)CCC(=O)O)CCSC)CC(C)C)CCCNC(=N)N
InChI InChI=1S/C190H323N71O45S/c1-100(2)89-132(170(295)244-116(43-19-23-74-193)155(280)243-125(54-34-85-227-190(216)217)169(294)258-148(103(7)8)177(302)256-133(90-101(3)4)171(296)245-122(51-31-82-224-187(210)211)160(285)248-128(62-67-141(197)265)166(291)249-129(64-69-146(271)272)167(292)254-134(93-105-37-13-12-14-38-105)172(297)255-135(173(298)259-149(104(9)10)180(305)306)94-107-95-228-111-40-16-15-39-109(107)111)253-163(288)117(44-20-24-75-194)238-161(286)124(53-33-84-226-189(214)215)251-176(301)139-56-36-87-261(139)179(304)136(91-102(5)6)257-168(293)130(71-88-307-11)250-164(289)126(63-68-145(269)270)233-143(267)98-231-175(300)138-55-35-86-260(138)178(303)131(65-70-147(273)274)252-162(287)123(52-32-83-225-188(212)213)246-174(299)137(99-262)234-144(268)97-230-151(276)112(45-25-76-218-181(198)199)235-156(281)118(47-27-78-220-183(202)203)240-158(283)120(49-29-80-222-185(206)207)242-165(290)127(61-66-140(196)264)247-159(284)121(50-30-81-223-186(208)209)241-157(282)119(48-28-79-221-184(204)205)239-154(279)115(42-18-22-73-192)237-153(278)114(41-17-21-72-191)236-152(277)113(46-26-77-219-182(200)201)232-142(266)96-229-150(275)110(195)92-106-57-59-108(263)60-58-106/h12-16,37-40,57-60,95,100-104,110,112-139,148-149,228,262-263H,17-36,41-56,61-94,96-99,191-195H2,1-11H3,(H2,196,264)(H2,197,265)(H,229,275)(H,230,276)(H,231,300)(H,232,266)(H,233,267)(H,234,268)(H,235,281)(H,236,277)(H,237,278)(H,238,286)(H,239,279)(H,240,283)(H,241,282)(H,242,290)(H,243,280)(H,244,295)(H,245,296)(H,246,299)(H,247,284)(H,248,285)(H,249,291)(H,250,289)(H,251,301)(H,252,287)(H,253,288)(H,254,292)(H,255,297)(H,256,302)(H,257,293)(H,258,294)(H,259,298)(H,269,270)(H,271,272)(H,273,274)(H,305,306)(H4,198,199,218)(H4,200,201,219)(H4,202,203,220)(H4,204,205,221)(H4,206,207,222)(H4,208,209,223)(H4,210,211,224)(H4,212,213,225)(H4,214,215,226)(H4,216,217,227)/t110-,112-,113-,114-,115-,116-,117-,118-,119-,120-,121-,122-,123-,124-,125-,126-,127-,128-,129-,130-,131-,132-,133-,134-,135-,136-,137-,138-,139-,148-,149-/m0/s1
InChI Key UDMRTOJWVGSXRR-OMVNHVILSA-N
Bioactivity Comments
In in vivo studies tatM2NX reduced infarct volume in male brains, but not female brains [2]. This observed sex-dependent effect is in line with studies that show that both pharmacological inhibition of TRPM2 channel activity with clotrimazole, or genetic knockdown, reduces ischemic injury in males, but not in females.
Selectivity at ion channels
Key to terms and symbols Click column headers to sort
Target Sp. Type Action Value Parameter Concentration range (M) Reference
TRPM2 Hs Channel blocker Antagonist 6.4 pIC50 - 1
⤷ pIC50 6.4 (IC50 3.96x10-7 M) [1]
Description: Inhibition of channel activity in HEK293 cells expressing human TRPM2.