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20 Cards in this Set
- Front
- Back
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Substrates required for DNA polymerase
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dATP
dGTP dCTP dTTP |
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Protein that binds and melts dsDNA
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DnaA
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Enzyme responsible for unwinding the double helix
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DNA Helicase
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Protein that binds to ssDNA, keeps it separated, and protects it from nucleases
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ssDNA-binding (SSB)
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Enzymes responsible for removing supercoils in unwinding DNA
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DNA topoisomerases
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DNA Polymerase reads DNA sequence in what direction?
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3'-5'
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DNA Polymerase synthesizes DNA strands in what direction?
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5'-3'
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Required for DNA polymerase to initiate synthesis
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An RNA primer
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Specific RNA polymerase that synthesizes short stretches of RNA used as a primer for DNA polymerase III in prokaryotes
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primase
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The major enzyme responsible for proofreading during replication in prokaryotes.
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DNA polymerase III
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Enzyme that locates the space between DNA and the RNA primer and replaces primer with DNA in prokaryotes.
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DNA pol I
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Enzyme responsible for linking fragments of the lagging chain.
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DNA ligase
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Enzyme responsible for DNA repair in prokaryotes
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DNA pol II
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In eykaryotes, RNA primer is removed by what enzyme?
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RNAse H
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The enzyme in eykaryotes that contains primase and initiates DNA synthesis.
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Pol α (alpha)
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Enzyme in eukaryotes that enlongates growing DNA strand
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Pol δ (delta)
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Enzymes in eykaryotes that are responsible for repair.
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Pol β (beta)
Pol ε (epsilon) |
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Only eykaryotic polymerases that do not proofread.
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Pol α (alpha)
Pol β (beta) |
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Enzyme that is capable of replenishing telomeres
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Telomerase
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Telomerase extends which end of DNA
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3'
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