BIOLOGY 151 Lecture Notes - Lecture 24: Nuclear Pore, Transmembrane Protein, Ribosome
Document Summary
The human genome has 23 pairs of chromosomes and 20,412 protein-coding genes. Genes that encode proteins function together are scattered among the chromosomes, but their expression must be coordinated. The coordination is achieved by combinatorial binding of transcription factors to regulator sequences. There are dozens of types of proteins encoded by genes in the genome. About of them are involved in signaling and gene regulation. Human genes categorized by function of the transcribed protein, given both as number of encoding genes and percentage of all genes. Cells in your brain would activate transcription factors that bind to regulatory sequences to regulate transcription of genes encoding signaling molecules that have signal sequence at the beginning of their coding sequences. Receptor on cell in your stomach would bind to signals released by your brain cells true. In response to signaling, cells in your stomach would activate transcription factors that bind to regulatory sequences of genes encoding digestive enzymes.
