fishy phylogeny exploring biomolecular evidence for evolution n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Fishy Phylogeny Exploring biomolecular evidence for evolution PowerPoint Presentation
Download Presentation
Fishy Phylogeny Exploring biomolecular evidence for evolution

Loading in 2 Seconds...

play fullscreen
1 / 8

Fishy Phylogeny Exploring biomolecular evidence for evolution - PowerPoint PPT Presentation


  • 77 Views
  • Uploaded on

Fishy Phylogeny Exploring biomolecular evidence for evolution. Biotechnology II. DNA. RNA. Protein. Trait. Biochemical Similarities. Traits are the result of: Structure Function Proteins determine structure and function DNA codes for proteins that confer traits. Phylogenetic Tree.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Fishy Phylogeny Exploring biomolecular evidence for evolution' - samson


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
biochemical similarities

DNA

RNA

Protein

Trait

Biochemical Similarities
  • Traits are the result of:
    • Structure
    • Function
  • Proteins determine structure and function
  • DNA codes for proteins that confer traits
protein size
Protein Size
  • Size measured in kilodaltons (kDa)
  • Dalton = mass of hydrogen molecule

= 1.66 x 10 -24 gram

  • Average amino acid = 110 daltons
muscle contains proteins of many sizes
Muscle Contains Proteins of Many Sizes

ProteinkDaFunction

titin 3000 center myosin in sarcomere

dystrophin 400 anchoring to plasma membrane

filamin 270 cross-link filaments into gel

myosin heavy chain 210slide filaments

spectrin 265 attach filaments to plasma membrane

nebulin 107 regulate actin assembly

a-actinin 100 bundle filaments

gelosin 90 fragment filaments

fimbrin 68 bundle filaments

actin42form filaments

tropomyosin 35 strengthen filaments

myosin light chain 27slide filaments

troponin (T, I, C) 30, 19, 17 mediate regulation of contraction

thymosin 5 sequester actin monomers

actin and myosin
Actin and Myosin
  • Actin:
      • 5% of total protein
      • 20% of vertebrate muscle mass
      • 375 amino acids = 42 kDa
      • Forms filaments
  • Myosin:
      • Tetramer of two heavy subunits (220 kDa)

and two light subunits (20 kDa)

      • Breaks down ATP for muscle contraction
molecular weight estimation
kDa mm

250

200

150

Size in kDa

100

50

0

0

20

40

60

Distance (mm from well)

Molecular Weight Estimation

203 8.5

135 12.0

86 18.5

41 28.0

33 34.0

19 41.5

8 44.5