A1KN4

Leucine epoxyketone, bound form

Created:	2026-08-20
Last modified:	2026-11-04

Find Related PDB Entry
1 entries where A1KN4 is found in a polymer sequence

Find related ligands: Help
Similar Ligands (Stereospecific) Similar Ligands (including Stereoisomers) Similar Ligands (Quick Screen) Similar Ligands (Substructure Stereospecific) Similar Ligands (Substructure including Stereoisomers)

Chemical Details
Formal Charge	0
Atom Count	31
Chiral Atom Count	2
Bond Count	30
Aromatic Bond Count	0

2D diagram of A1KN4

Toggle Hydrogen Toggle Labels

Chemical Component Summary
Name	Leucine epoxyketone, bound form
Systematic Name (OpenEye OEToolkits)	(2~{S},4~{S})-4-azanyl-2,6-dimethyl-1-oxidanyl-heptan-3-one
Formula	C₉ H₁₉ N O₂
Molecular Weight	173.253
Type	L-PEPTIDE LINKING

Chemical Descriptors
Type	Program	Version	Descriptor
SMILES	CACTVS	3.385	CC(C)C[CH](N)C(=O)[CH](C)CO
SMILES	OpenEye OEToolkits	2.0.7	CC(C)CC(C(=O)C(C)CO)N
Canonical SMILES	CACTVS	3.385	CC(C)C[C@H](N)C(=O)[C@@H](C)CO
Canonical SMILES	OpenEye OEToolkits	2.0.7	C[C@@H](CO)C(=O)[C@H](CC(C)C)N
InChI	InChI	1.06	InChI=1S/C9H19NO2/c1-6(2)4-8(10)9(12)7(3)5-11/h6-8,11H,4-5,10H2,1-3H3/t7-,8-/m0/s1
InChIKey	InChI	1.06	QQAYGLIIXGYVDR-YUMQZZPRSA-N