氨基酸structure

nullnullR group Amino group Carboxylic group L-Form Amino Acid StructureH = GlycineCH3 = AlanineJuang RH (2004) BCbasicsnullMirror Images of Amino AcidMirror imageSame chemical propertiesStereo isomersJuang RH (2004) BCbasicsnull-C-C-CONH2-C-CONH2-C-COOH-C-C-COOH-H-CH3-C-OH-C-SH-C-C-S-C-C-C-C-C-NH3+South lineCircular lineCentral lineNan-Kan lineChung-San lineNorthwest lineAliphaticAmideAcidicImino, CircularBasicSulfurHydroxyAromatic Amino Acid Subway MapJuang RH (2004) BCbasicsThis is NOT a metabolic pathwaynullPOLARNON- POLARTyrHisGlyAcidicNeutralBasicAspGluGlnCysAsnSerThrLysArgAlaValIleLeuMetPheTrpProClassification of Amino Acids by PolarityPolar or non-polar, it is the bases of the amino acid properties.Juang RH (2003) BiochemistrynullAmino acids are connected head to tailFormation of Peptide Bonds by DehydrationDehydration -H2OCarbodiimideJuang RH (2004) BCbasicsnullPeptide Bond Is Rigid and PlanarJuang RH (2004) BCbasics