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21 Cards in this Set

  • Front
  • Back
examples of base structures
examples of nucleoside structures
examples of nucleoside structures
nucleotide structure examples
The first step in pyrimidine biosynthesis
note the structure and functions of carbamoylphosphate synthetase II
second step of pyrimidine synthesis. happens right after making carbanoylphosphate. ends in an acid
pyrimidine synthesis part 3, starting w/ an acid, ending with a NMP
turning UMP into CTP. 4th step of pyrimidine biosynthesis
pyrimidine synthesis regulation in bacteria
Structure of E. coli aspartate transcarbamoylase and graph of it's activity vs [Aspartate]
what are the conformational states of E. coli transcarbamoylase?
unbound "taught" state and bound "relaxed" state in the catalytic region. C = catalytic region, R = regulatory region
mammal pyrimidine synthesis enzyme
regulation of formation of carbamoylphosphate in mammals
draw out the building blocks of purines. there are 5
basic structure that leads to all purines
how many steps are in purine synthesis? What is the first and last step?
11 steps. 1st step is PRibosePP + Gln. last step is IMP --> AMP and GMP
what is the first structure that all other parts add to in purine synthesis?
everything is built up off of a ribose
What is a key difference in bacterial and animal synthesis of purines?
bacteria use up one more molecule of ATP
getting from IMP to GMP or AMP
purine regulation