Background session 2 transcription genetic code translation may 17 2008
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Background Session #2 Transcription Genetic Code Translation May 17, 2008 PowerPoint PPT Presentation


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Background Session #2 Transcription Genetic Code Translation May 17, 2008. Henrik Kibak Associate Professor of Biology California State University, Monterey Bay. Transcription & Translation. DNA  RNA  Protein. Transcription & Translation. Review of Transcription.

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Background Session #2 Transcription Genetic Code Translation May 17, 2008

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Background session 2 transcription genetic code translation may 17 2008

Background Session #2Transcription Genetic Code TranslationMay 17, 2008

Henrik Kibak

Associate Professor of Biology

California State University, Monterey Bay


Transcription translation

Transcription & Translation

DNA RNA  Protein

May 17th Workshop


Transcription translation1

Transcription & Translation

May 17th Workshop


Review of transcription

Review of Transcription

May 17th Workshop


Review of transcription1

Review of Transcription

(Prokaryotes)

May 17th Workshop


Review of transcription2

Review of Transcription

May 17th Workshop


Review of transcription3

Review of Transcription

Genes and RNA transcripts differ in length!

May 17th Workshop


Review of transcription4

Review of Transcription

May 17th Workshop


Review of translation

Review of Translation

May 17th Workshop


Review of translation1

Review of Translation

May 17th Workshop


Review of genetic code

Review of Genetic Code

May 17th Workshop


Amino acid review

Amino Acid Review

Two of the most important properties of amino acids are their size and “hydrophobicity,” or oilyness. The more hydrophobic a residue, the more hydrogen-bond forming molecules such as water force the residue away.

This causes proteins to fold with their non-polar residues in, away from water… or to become embedded in the lipid bilayer of cell membranes.

May 17th Workshop


Review of genetic code1

Review of Genetic Code

May 17th Workshop


Review of genetic code2

Review of Genetic Code

May 17th Workshop


Dna and protein sequences

DNA and Protein Sequences

  • ATGGAACTTATTAAAGAAGATAATGCT

May 17th Workshop


Dna and protein sequences1

DNA and Protein Sequences

  • ATGGAACTTATTAAAGAAGATAATGCT

    M E L I K E D N A

May 17th Workshop


Dna and protein sequences2

DNA and Protein Sequences

M E L I K E D N A

ATGGAACTTATTAAAGAAGATAATGCT

ATGGAGTTCATCAAGGAGGACAACGCC

ATGGAGTTAATAAAAGAAGATAATGCA

ATGGAGTTGATTAAAGAAGATAATGCG

Met Glu Leu Ile Lys Glu Asp Asn Ala

M E L I K E D N A

ATG GAA CTT ATT AAA GAA GAT AAT GCT

G T C C G G C C C

A A A

G G

May 17th Workshop


Review of genetic code3

Review of Genetic Code

May 17th Workshop


Mrna protein

mRNA  Protein

HumanCytochrome c mRNA Translated to Protein

M G D V E K G K K I F I M K C S Q C H T

AUG GGU GAU GUU GAG AAA GGC AAG AAG AUU UUU AUU AUG AAG UGU UCC CAG UGC CAC ACC

V E K G G K H K T G P N L H G L F G R K

GUU GAA AAG GGA GGC AAG CAC AAG ACU GGG CCA AAU CUC CAU GGU CUC UUU GGG CGG AAG

T G Q A P G Y S Y T A A N K N K G I I W

ACA GGU CAG GCC CCU GGA UAC UCU UAC ACA GCC GCC AAU AAG AAC AAA GGC AUC AUC UGG

G E D T L M E Y L E N P K K Y I P G U K

GGA GAG GAU ACA CUG AUG GAG UAU UUG GAG AAU CCC AAG AAG UAC AUC CCU GGA ACA AAA

M I F V G I K K K E E R A D L I A Y L K

AUG AUC UUU GUC GGC AUU AAG AAG AAG GAA GAA AGG GCA GAC UUA AUA GCU UAU CUC AAA

K A T N E -

AAA GCU ACU AAU GAG UAA

May 17th Workshop


Introns exons untranslated regions

Introns, Exons, & Untranslated Regions

>Cytochrome c somatic range=chr7:25129845-25131480

AGGGCGCGGGAGCGCGGAGCGAGTTTGGTTGCACTTACACCGGTACTTAA

GCGCGGACCGGCGTGTCCTTGGACTTAGAGAGTGGGGACGTCCGGCTTCG

GAGCGGGAGTGTTCGTTGTGCCAGCGACTAAAAAGAGgtgagagcgggtc

gcggaggccgcacctggttagaggcagagctgtgggaggcgcgcacttgc

gagcgaccgaaacccaagcggggagcattcgagtggagcccgcgctgggt

gggagggcggggagtgaagaccctggactgtggtcagaccgagctgggcg

agtaacggcttgaggtgcggcggagccctaactagggacaggtatggtct

cggtcagggactggaggcggcttggatacagatccgaggaggaggcggcc

tcttccgtagtggttgctgaagggctatggaaatgataggcaagacttcc

ctcctggaaagccgaagcttagagcttcacgttcttcttcagagggcaaa

agctgttgctcttctaataaggggccagttcttttcgtgggcacatgttt

cttccgtcagtcgttctgacatcctagaaggagtttcatcaatcaccttg

aaaccgacctggacgggtgacctcgtggtcgccccaggagatcacaggta

ggggagttgggatgtccccgggggaccgtgcagcctgcccctgagctccc

attcacaagttcgagtgtcaagctactcctgtgacctgggcagatagaaa

cagccaggaccgctttttaaacatttgtgtgctttgcgttatcctcaggg

agaggtggctttacattgtagtaagattaaatggttaggtctttttaaaa

gttgcggttgtggtgattttggcttaatgtgttcgcccttgagcttcaga

tctgtgacttcgtgaccatgattgtctcttctgaaactggagtttgaatt

aggttccctctttgcttgggctttaacgttccttcacgtatacacacaaa

aatacgtttttgaggaggtactcctaaaaatgtttttggtattaaagaat

atttggtataaagagtattaaagcaaaacaagattcattctggtatttaa

tgacataaattagcaatggattggtaattaagtggctagagtggtcattc

atttacactgtatttgttacctgaggaaaaatttactaagttgaagcttt

cgtttttagAATTAAATATGGGTGATGTTGAGAAAGGCAAGAAGATTTTT

ATTATGAAGTGTTCCCAGTGCCACACCGTTGAAAAGGGAGGCAAGCACAA

GACTGGGCCAAATCTCCATGGTCTCTTTGGGCGGAAGACAGGTCAGGCCC

CTGGATACTCTTACACAGCCGCCAATAAGAACAAAGgtaagagtcacttg

ttaaataaaacaacacaaaatgcaggaatataacatgtggcaaactatca

ggagtgtgaaataaccgatgcattctttcttgtttagGCATCATCTGGGG

AGAGGATACACTGATGGAGTATTTGGAGAATCCCAAGAAGTACATCCCTG

GAACAAAAATGATCTTTGTCGGCATTAAGAAGAAGGAAGAAAGGGCAGAC

TTAATAGCTTATCTCAAAAAAGCTACTAATGAGTAA

Actual gene sequence of Human Cytochrome c including introns and 5’ untranslated region taken directly from chromosome 7 genomic sequence.

The blue portion of sequence becomes the mature mRNA

(some 3’ untranslated sequence left off for clarity).

May 17th Workshop


Reading frames

Reading Frames

cgtttttag

AATTAAATATGGGTGATGTTGAGAAAGGCAAGAAGATTTTT

ATTATGAAGTGTTCCCAGTGCCACACCGTTGAAAAGGGAGGCAAGCACAA

GACTGGGCCAAATCTCCATGGTCTCTTTGGGCGGAAGACAGGTCAGGCCC

CTGGATACTCTTACACAGCCGCCAATAAGAACAAAG

gtaagagtcacttg

May 17th Workshop


Reading frames1

Reading Frames

cgtttttagAATTAAATATGGGTGATGTTGAGAAAGGCAAGAAGATTTTT

ATTATGAAGTGTTCCCAGTGCCACACCGTTGAAAAGGGAGGCAAGCACAA

GACTGGGCCAAATCTCCATGGTCTCTTTGGGCGGAAGACAGGTCAGGCCC

CTGGATACTCTTACACAGCCGCCAATAAGAACAAAGgtaagagtcacttg

ttaaataaaacaacacaaaatgcaggaatataacatgtggcaaactatca

ggagtgtgaaataaccgatgcattctttcttgtttagGCATCATCTGGGG

AGAGGATACACTGATGGAGTATTTGGAGAATCCCAAGAAGTACATCCCTG

GAACAAAAATGATCTTTGTCGGCATTAAGAAGAAGGAAGAAAGGGCAGAC

TTAATAGCTTATCTCAAAAAAGCTACTAATGAGTAA

If we translate the whole segment we get no open reading frames….

May 17th Workshop


Open reading frames are rare so they probably indicate a gene

Open Reading Frames are Rare… (so they probably indicate a gene).

AATTAAATATGGGTGATGTTGAGAAAGGCAAGAAGATTTTT

ATTATGAAGTGTTCCCAGTGCCACACCGTTGAAAAGGGAGGCAAGCACAA

GACTGGGCCAAATCTCCATGGTCTCTTTGGGCGGAAGACAGGTCAGGCCC

CTGGATACTCTTACACAGCCGCCAATAAGAACAAAG

GCATCATCTGGGG

AGAGGATACACTGATGGAGTATTTGGAGAATCCCAAGAAGTACATCCCTG

GAACAAAAATGATCTTTGTCGGCATTAAGAAGAAGGAAGAAAGGGCAGAC

TTAATAGCTTATCTCAAAAAAGCTACTAATGAGTAA

May 17th Workshop


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