title: propy: a tool to generate various modes of Chou's PseAAC.
abstract: CONCLUSIONS
  Sequence-derived structural and physiochemical features have been frequently used for analysing and predicting structural, functional, expression and interaction profiles of proteins and peptides. To facilitate extensive studies of proteins and peptides, we developed a freely available, open source python package called protein in python (propy) for calculating the widely used structural and physicochemical features of proteins and peptides from amino acid sequence. It computes five feature groups composed of 13 features, including amino acid composition, dipeptide composition, tripeptide composition, normalized Moreau-Broto autocorrelation, Moran autocorrelation, Geary autocorrelation, sequence-order-coupling number, quasi-sequence-order descriptors, composition, transition and distribution of various structural and physicochemical properties and two types of pseudo amino acid composition (PseAAC) descriptors. These features could be generally regarded as different Chou's PseAAC modes. In addition, it can also easily compute the previous descriptors based on user-defined properties, which are automatically available from the AAindex database.
  
  
  BACKGROUND
  The python package, propy, is freely available via http://code.google.com/p/protpy/downloads/list, and it runs on Linux and MS-Windows.
  
  
  BACKGROUND
  Supplementary data are available at Bioinformatics online.
authors: Research Center of Modernization of Traditional Chinese Medicines, Central South University, Changsha 410083, People's Republic of China.
authors: Dong-Sheng
authors: DS
authors: Cao
authors: Qing-Song
authors: QS
authors: Xu
authors: Yi-Zeng
authors: YZ
authors: Liang
mesh_terms: D000596:Amino Acids / Q000032:analysis / Q000737:chemistry; D010455:Peptides / Q000737:chemistry* / Q000378:metabolism; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry* / Q000378:metabolism; D020539:Sequence Analysis, Protein; D012984:Software; D049490:Systems Biology / Q000379:methods
chemical_list: D000596:Amino Acids; D010455:Peptides; D011506:Proteins