| gptkbp:instanceOf | gptkb:amino_acid_transporter 
 | 
                        
                            
                                | gptkbp:abbreviation | Thr 
 | 
                        
                            
                                | gptkbp:biosynthesized_from | not synthesized in humans 
 | 
                        
                            
                                | gptkbp:CASNumber | 72-19-5 
 | 
                        
                            
                                | gptkbp:chemicalFormula | C4H9NO3 
 | 
                        
                            
                                | gptkbp:chirality | L-threonine is biologically active 
 | 
                        
                            
                                | gptkbp:codons | gptkb:ACG gptkb:ACU
 gptkb:ACA
 gptkb:ACC
 
 | 
                        
                            
                                | gptkbp:degradationProduct | gptkb:propionyl-CoA acetyl-CoA
 glycine
 
 | 
                        
                            
                                | gptkbp:discoveredBy | gptkb:William_Cumming_Rose 
 | 
                        
                            
                                | gptkbp:discoveredIn | 1936 
 | 
                        
                            
                                | gptkbp:essentialAminoAcid | true 
 | 
                        
                            
                                | gptkbp:foundIn | gptkb:meat gptkb:milk
 seeds
 beans
 eggs
 nuts
 proteins
 soy products
 
 | 
                        
                            
                                | gptkbp:isomerOf | gptkb:D-threonine gptkb:L-threonine
 gptkb:allo-threonine
 
 | 
                        
                            
                                | gptkbp:IUPACName | gptkb:(2S,3R)-2-amino-3-hydroxybutanoic_acid 
 | 
                        
                            
                                | gptkbp:KEGGID | C00188 
 | 
                        
                            
                                | gptkbp:meltingPoint | 256 °C (decomposes) 
 | 
                        
                            
                                | gptkbp:metabolicPathway | glycine and serine metabolism threonine degradation
 
 | 
                        
                            
                                | gptkbp:molecularWeight | 119.12 g/mol 
 | 
                        
                            
                                | gptkbp:oneLetterCode | T 
 | 
                        
                            
                                | gptkbp:pKa1_(carboxyl_group) | 2.09 
 | 
                        
                            
                                | gptkbp:pKa2_(amino_group) | 9.10 
 | 
                        
                            
                                | gptkbp:pKa3_(side_chain) | none 
 | 
                        
                            
                                | gptkbp:PubChem_CID | 6288 CHEBI:16857
 
 | 
                        
                            
                                | gptkbp:role | immune function protein synthesis
 central nervous system function
 collagen production
 
 | 
                        
                            
                                | gptkbp:sideChain | polar hydrophilic
 
 | 
                        
                            
                                | gptkbp:solubility | soluble 
 | 
                        
                            
                                | gptkbp:source | dietary protein 
 | 
                        
                            
                                | gptkbp:structureType | alpha-amino acid 
 | 
                        
                            
                                | gptkbp:UNII | 9F6E0I5R0U 
 | 
                        
                            
                                | gptkbp:bfsParent | gptkb:THR 
 | 
                        
                            
                                | gptkbp:bfsLayer | 6 
 | 
                        
                            
                                | https://www.w3.org/2000/01/rdf-schema#label | Threonine 
 |