Proto-oncogenes (1 Viewer)

[honky tonk]

What the buggery are these and why are they popping up everywhere in my notes?

 

[s2ophie]

never hear of 'em! Should i be worried?

 

[Halo]

From (my bad) memory, proto-oncogenes are genes that code for growth factors for a cell. If they mutate, they become carcinogenic oncogenes and may produce excessive growth factors, resulting into unrestrained cell growth/multiplication and ultimately into a tumour.

Something like that...

 

[xiao1985]

huh??? is it just me failin the hsc or have i neva heard this term before??

 

[*~Dazed~*]

ive heard of it but we never went into as much detail as halo... this is what i have learnt... very simple and straight to the point...

proto oncogenes produce proteins that STIMULATE cell growth and cell division
tumour suppressor genes on the other hanf produce proteins that SLOW down or stop cell growth and divison..
to be healthy... you need a balance of the two

 

[mei_ling03]

s2ophie, have a look in heinmann biology.. nice explanation there

 

[s2ophie]

can someone tell me which dot point this is referring to? then i will be able to work out if i know about them and just don't know the term

 

[xiao1985]

i dunt fink tis specifically mentioned in the syllabus..... but it has somethin to do wif mutation i think...

 

[mei_ling03]

yeah it's not written in there but always good to know
i think it was last year or the year before that they mentioned something similar...

 

[swordfish]

we used an example of the gene product p53 instead...if its what im thinking of, the dot point relating to how a change in a gene can affect an organisms functioning or something like that