kinase vs phosphorylase?

[TeethRCool]

what's the difference? Thanks!

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[Uracil]

Kinases = add a phosphate to a molecule
Phosphorylase = takes away a phosphate from a molecule (Not so sure about this one)

 

[issa]

Kinases = add a phosphate to a molecule
Phosphorylase = takes away a phosphate from a molecule (Not so sure about this one)

you are right. we just covered these in cell bio.

 

[cdmOMR]

you are right. we just covered these in cell bio.

umm hmm...I find it best to just remember kinases phosphorylate, and then if I see a phosphorylase I know it either adds or removes a phosphate group, and since I know kinase adds a phosphate group then phosphorylase must do the opposite.

 

[mightymouse23]

you guys are right. kinases always add a phosphate group. Look at tyrosine kinase which is responsible for phosphorylating ADP to ATP when the secondary messenger cAMP is activated.

 

[fancymylotus]

you guys are right. kinases always add a phosphate group. Look at tyrosine kinase which is responsible for phosphorylating ADP to ATP when the secondary messenger cAMP is activated.

or hexoKINASE which adds P to glucose=glucose 6-p=first step of glycolysis

 

[TeethRCool]

then what's the difference between a phosphorylase and a phosphatase?

 

[fancymylotus]

then what's the difference between a phosphorylase and a phosphatase?

Phosphatases catalyze the removal of a P group.

Kinases catalyze the transfer of a P group from a donor(like ATP) to some acceptor.

Phosphorylases catalyze the addition of a P group from inorganic P to some acceptor.


(way too much detail for DAT,by the way-but here you go.)

 

[mightymouse23]

yea yea yea... its what she said...