PDB Chemical Component HIS

Ideal Model

Chemical Description

Name HISTIDINE
Formula C6 H10 N3 O2
Formal charge 1
Molecular weight 156.162 g/mol
Component type L-PEPTIDE LINKING

Chemical features

Atom count 21
Chiral atom count 1
Chiral atoms CA
Observed leaving atoms OXT H2 HXT
Bond count 21
Aromatic bond count 5

Chemical Identifiers

Systematic name (ACDLabs) 3-(1H-imidazol-3-ium-4-yl)-L-alanine
Systematic name (OpenEye OEToolkits) (2S)-2-amino-3-(1H-imidazol-3-ium-4-yl)propanoic acid

Chemical Descriptors

Stereo SMILES (CACTVS) N[C@@H](Cc1c[nH]c[nH+]1)C(O)=O
SMILES (CACTVS) N[CH](Cc1c[nH]c[nH+]1)C(O)=O
Stereo SMILES (OpenEye) c1c([nH+]c[nH]1)C[C@@H](C(=O)O)N
InChI descriptor InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/p+1/t5-/m0/s1
InChIKey descriptor HNDVDQJCIGZPNO-YFKPBYRVSA-O

Status Information

Last modified 2011-06-04
Created 1999-07-08
Release status REL
Processing site EBI