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Some useful facts about DNA.
mass of DNA: 1 bp 660 Daltons (660 g/mol)
DNA per mammalian cell: 6 pg
length of DNA (diploid human) per cell: 2 m
human genome: 3.1 Gb, so 6 billion bp in normal diploid
rat genome: 2.87 Gb
mouse genome: 2.73 Gb
human mitochondria genome: 16.5 kbp, encodes 13 proteins; 1% of cellular DNA (1000 - 10,000 copies per cell)
human chromosomes: 23 pairs: (22 automosomes and X and Y chromosomes)
rat chromosomes: 21 pairs
mouse chromosomes: 20 pairs
nucleosome: 147 bp wrapped (1.67 left-handed superhelical turns) around histone octamer ( 2 copies each H2A, H2B, H3, and H4). The nucleosome contains over 120 direct protein-DNA interactions and several hundred water-mediated ones. Linker DNA between nucleosomes 10-80 bp
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Some useful facts about DNA.
mass of DNA: 1 bp 660 Daltons (660 g/mol)
DNA per mammalian cell: 6 pg
length of DNA (diploid human) per cell: 2 m
human genome: 3.1 Gb, so 6 billion bp in normal diploid
rat genome: 2.87 Gb
mouse genome: 2.73 Gb
human mitochondria genome: 16.5 kbp, encodes 13 proteins; 1% of cellular DNA (1000 - 10,000 copies per cell)
human chromosomes: 23 pairs: (22 automosomes and X and Y chromosomes)
rat chromosomes: 21 pairs
mouse chromosomes: 20 pairs
nucleosome: 147 bp wrapped (1.67 left-handed superhelical turns) around histone octamer ( 2 copies each H2A, H2B, H3, and H4). The nucleosome contains over 120 direct protein-DNA interactions and several hundred water-mediated ones. Linker DNA between nucleosomes 10-80 bp