Algorithms|Amino Acid Motifs|Chondrocytes|Computational Biology|DNA|Gene Expression Regulation|Humans|Interleukin-1|Models, Statistical|Monte Carlo Method|Oligonucleotide Array Sequence Analysis|Principal Component Analysis|Promoter Regions, Genetic|Protein Array Analysis|Protein Binding|Sequence Analysis, DNA|Transcription Factors|Transcription, Genetic