Details of the Drug

General Information of Drug (ID: DMYNBK5)

• Drug Name: apamin
• Synonyms: 08APA001_SMARTOX; GTPL2311; 08APA001; Apamin, synthetic, > Apamin, from bee venom, &gt

Indication

Disease Entry	ICD 11	Status	REF
Discovery agent	N.A.	Investigative	[1]

• Drug Type: Small molecular drug
• #Ro5 Violations (Lipinski): 5:
  Molecular Weight (mw); 2027.4
  Logarithm of the Partition Coefficient (xlogp); -13.4
  Rotatable Bond Count (rotbonds); 37
  Hydrogen Bond Donor Count (hbonddonor); 31
  Hydrogen Bond Acceptor Count (hbondacc); 33
• Chemical Identifiers:
  Formula: C79H131N31O24S4
  IUPAC Name: 3-[(1R,4S,7S,13S,16S,19S,22S,25S,28R,31S,34S,37S,40R,47S,50R)-50-amino-40-[[(2S)-5-amino-1-[[(2S)-5-amino-1-[[(2S)-1-amino-3-(1H-imidazol-5-yl)-1-oxopropan-2-yl]amino]-1,5-dioxopentan-2-yl]amino]-1,5-dioxopentan-2-yl]carbamoyl]-4-(4-aminobutyl)-47-(2-amino-2-oxoethyl)-34,37-bis(3-carbamimidamidopropyl)-19-[(1R)-1-hydroxyethyl]-7,22,31-trimethyl-25-(2-methylpropyl)-2,5,8,14,17,20,23,26,29,32,35,38,46,49-tetradecaoxo-42,43,52,53-tetrathia-3,6,9,15,18,21,24,27,30,33,36,39,45,48-tetradecazatricyclo[26.16.10.09,13]tetrapentacontan-16-yl]propanoic acid
  Canonical SMILES: C[C@H]1C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@H]2C(=O)N[C@H](C(=O)N[C@H](C(=O)N3CCC[C@H]3C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@H](C(=O)N[C@@H](CSSC[C@@H](C(=O)N[C@H](C(=O)N2)CC(=O)N)N)C(=O)N1)CC(C)C)C)[C@@H](C)O)CCC(=O)O)C)CCCCN)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CCC(=O)N)C(=O)N[C@@H](CC4=CN=CN4)C(=O)N)CCCNC(=N)N)CCCNC(=N)N
  InChI: InChI=1S/C79H131N31O24S4/c1-35(2)26-49-70(127)107-51-31-136-135-30-41(81)63(120)105-50(28-57(84)114)71(128)108-53(73(130)99-42(12-7-8-22-80)64(121)96-38(5)77(134)110-25-11-15-54(110)75(132)102-47(18-21-58(115)116)69(126)109-59(39(6)111)76(133)95-37(4)62(119)104-49)33-138-137-32-52(106-66(123)44(14-10-24-92-79(88)89)98-65(122)43(13-9-23-91-78(86)87)97-61(118)36(3)94-72(51)129)74(131)101-45(16-19-55(82)112)67(124)100-46(17-20-56(83)113)68(125)103-48(60(85)117)27-40-29-90-34-93-40/h29,34-39,41-54,59,111H,7-28,30-33,80-81H2,1-6H3,(H2,82,112)(H2,83,113)(H2,84,114)(H2,85,117)(H,90,93)(H,94,129)(H,95,133)(H,96,121)(H,97,118)(H,98,122)(H,99,130)(H,100,124)(H,101,131)(H,102,132)(H,103,125)(H,104,119)(H,105,120)(H,106,123)(H,107,127)(H,108,128)(H,109,126)(H,115,116)(H4,86,87,91)(H4,88,89,92)/t36-,37-,38-,39+,41-,42-,43-,44-,45-,46-,47-,48-,49-,50-,51-,52-,53-,54-,59-/m0/s1
  InChIKey: YVIIHEKJCKCXOB-STYWVVQQSA-N
• Cross-matching ID:
  PubChem CID: 16218850
  TTD ID: D0VK9Y
  VARIDT ID: DR00806

Molecular Interaction Atlas of This Drug

Drug Therapeutic Target (DTT)

DTT Name	DTT ID	UniProt ID	MOA	REF
Calcium-activated potassium channel KCa2.1 (KCNN1)	TT9R6BE	KCNN1_HUMAN	Blocker (channel blocker)	[2]
Calcium-activated potassium channel KCa2.2 (KCNN2)	TT2T5M0	KCNN2_HUMAN	Blocker (channel blocker)	[3]
Calcium-activated potassium channel KCa2.3 (KCNN3)	TT9JH25	KCNN3_HUMAN	Blocker (channel blocker)	[4]

Molecular Expression Atlas of This Drug

• The Studied Disease: Discovery agent
• ICD Disease Classification: N.A.

Molecule Name	Molecule Type	Gene Name	p-value	Fold-Change	Z-score
Calcium-activated potassium channel KCa2.2 (KCNN2)	DTT	KCNN2	5.17E-02	1.41E-02	0.15

References

• [1] URL: http://www.guidetopharmacology.org Nucleic Acids Res. 2015 Oct 12. pii: gkv1037. The IUPHAR/BPS Guide to PHARMACOLOGY in 2016: towards curated quantitative interactions between 1300 protein targets and 6000 ligands. (Ligand id: 2311).
• [2] Pharmacological characterization of small-conductance Ca(2+)-activated K(+) channels stably expressed in HEK 293 cells. Br J Pharmacol. 2000 Mar;129(5):991-9.
• [3] SK2 encodes the apamin-sensitive Ca(2+)-activated K(+) channels in the human leukemic T cell line, Jurkat. FEBS Lett. 2000 Mar 10;469(2-3):196-202.
• [4] SK3 is an important component of K(+) channels mediating the afterhyperpolarization in cultured rat SCG neurones. J Physiol. 2001 Sep 1;535(Pt 2):323-34.