DNA. DNA is read from 5’ end DNA close up Central Dogma.

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Presentation transcript:

DNA

DNA is read from 5’ end

DNA close up

Central Dogma

Symbol 3-letter Meaning Codons A Ala Alanine GCT,GCC,GCA,GCG C Cys Cysteine TGT,TGC D Asp Aspartic GAT,GAC E Glu Glutamic GAA,GAG F Phe Phenylalanine TTT,TTC G Gly Glycine GGT,GGC,GGA,GGG H His Histidine CAT,CAC I Ile Isoleucine ATT,ATC,ATA K Lys Lysine AAA,AAG L Leu Leucine TTG,TTA,CTT,CTC,CTA,CTG M Met Methionine ATG N Asn Asparagine AAT,AAC P Pro Proline CCT,CCC,CCA,CCG Q Gln Glutamine CAA,CAG R Arg Arginine CGT,CGC,CGA,CGG,AGA,AGG S Ser Serine TCT,TCC,TCA,TCG,AGT,AGC T Thr Threonine ACT,ACC,ACA,ACG V Val Valine GTT,GTC,GTA,GTG W Trp Tryptophan TGG X Xxx Unknown Y Tyr Tyrosine TAT, TAC * End Terminator TAA,TAG,TGA

Binding of RNA polymerase at start of transcription

Transcription

Transcription (con’t)

Transcription complete

tRNA

Translation

E. coli dUTPase MKKIDVKILDPRVGKEFPLPTYATSGSAGLDLRACLNDAVELAPGDTTLVPTGLA IHIADPSLAAMMLPRSGLGHKHGIVLGNLVGLIDSDYQGQLMISVWNRGQDSFTI QPGERIAQMIFVPVVQAEFNLVEDFDATDRGEGGFGHSGRQ 1 atgaaaaaaa tcgacgttaa gattctggac ccgcgcgttg ggaaggaatt tccgctcccg 61 acttatgcca cctctggctc tgccggactt gacctgcgtg cctgtctcaa cgacgccgta 121 gaactggctc cgggtgacac tacgctggtt ccgaccgggc tggcgattca tattgccgat 181 ccttcactgg cggcaatgat gctgccgcgc tccggattgg gacataagca cggtatcgtg 241 cttggtaacc tggtaggatt gatcgattct gactatcagg gccagttgat gatttccgtg 301 tggaaccgtg gtcaggacag cttcaccatt caacctggcg aacgcatcgc ccagatgatt 361 tttgttccgg tagtacaggc tgaatttaat ctggtggaag atttcgacgc caccgaccgc 421 ggtgaaggcg gctttggtca ctctggtcgt cagtaa

Polysomal translation

lac operon

Regulatory gene, i, codes for repressor protein

Can also have enhancers