DNA polymerase: Difference between revisions

From Proteopedia
Jump to navigation Jump to search
No edit summary
Michal Harel (talk | contribs)
No edit summary
Line 270: Line 270:
**[[3upq]], [[3uq0]], [[3uq2]] - hDpo δ (mutant) + DNA<br />
**[[3upq]], [[3uq0]], [[3uq2]] - hDpo δ (mutant) + DNA<br />
**[[4fo6]] - hDpo δ (mutant) + DNA + nucleotide analog<br />
**[[4fo6]] - hDpo δ (mutant) + DNA + nucleotide analog<br />
*DNA polymerase epsilon
**[[3mr4]], [[3mr2]], [[3mr3]], [[3mr5]], [[3mr6]] - hDpo ε catalytic core + DNA + nucleotide<br />


*DNA polymerase zeta
*DNA polymerase zeta
Line 284: Line 280:


**[[2i5o]] - hDpo η ubiquitin-binding zinc finger – NMR<br />
**[[2i5o]] - hDpo η ubiquitin-binding zinc finger – NMR<br />
**[[3si8]] - hDpo η +  DNA<br />
**[[2lsj]], [[2lsi]] - hDpo η + DNA repair protein Rev1<br />
**[[2lsj]], [[2lsi]] - hDpo η + DNA repair protein Rev1<br />
**[[4dl2]], [[4dl3]], [[4dl4]], [[4dl5]], [[4dl6]], [[4dl7]], [[4eey]], [[4ecq]], [[4ecr]], [[4ecs]], [[4ect]], [[4ecu]], [[4ecv]], [[4ecw]], [[4ecx]], [[4ecy]], [[4ecz]], [[4ed0]], [[4ed1]], [[4ed2]], [[4ed3]], [[4ed6]], [[4ed7]], [[4ed8]], [[4o3n]], [[4o3o]], [[4o3p]], [[4o3q]], [[4o3r]], [[4o3s]], [[4q8e]], [[4q8f]], [[4rnm]], [[4rnn]], [[4rno]], [[4x0p]], [[4x0q]] - hDpo η + DNA + nucleotide<br />
**[[4dl2]], [[4dl3]], [[4dl4]], [[4dl5]], [[4dl6]], [[4dl7]], [[4eey]], [[4ecq]], [[4ecr]], [[4ecs]], [[4ect]], [[4ecu]], [[4ecv]], [[4ecw]], [[4ecx]], [[4ecy]], [[4ecz]], [[4ed0]], [[4ed1]], [[4ed2]], [[4ed3]], [[4ed6]], [[4ed7]], [[4ed8]], [[4o3n]], [[4o3o]], [[4o3p]], [[4o3q]], [[4o3r]], [[4o3s]], [[4q8e]], [[4q8f]], [[4rnm]], [[4rnn]], [[4rno]], [[4x0p]], [[4x0q]], [[3mr2]], [[3mr3]], [[3mr5]], [[3mr6]], [[3si8]] - hDpo η + DNA + nucleotide<br />
**[[5aga]] - hDpo η + nucleotide<br />
**[[5aga]] - hDpo η + nucleotide<br />



Revision as of 13:12, 16 November 2016


DNA polymerase (Dpo) reads a DNA strand and catalyzes the synthesis of its complementary strand. Dpo's are divided into 7 families according to their sequence homology and 3D structure similarities.[1] The families are:

  • Family A - replicative or repair Dpo.
  • Family B - replicative Dpo involved in processing DNA replication during cell division (includes eukaryotic Dpo α,δ,ε).
  • Family C - major replicative Dpo in bacteria (includes Dpo II, III, IV).
  • Family D - replicative. Present in archaea.
  • Family X - eukaryotic repair Dpo (includes Dpo β,λ,σ,μ and terminal deoxynucleotidyl transferase).
  • Family Y - replicative of damaged DNA (includes eukaryotic η,ι,κ).
  • Family RT - reverse transcriptase. See Reverse transcriptase.

Some Dpo terminology:

Dpo sliding clamp is made of the complex of Dpo and Proliferating Cell Nuclear Antigen (PCNA) which encircles it.
The BRCT domain in Dpo is the C-terminal domain of breast cancer susceptibility protein.
Klenow fragment is a large Dpo fragment produced upon cleavage of Dpo by subtilisin.
In the E. coli, the EcDpo III subunits β, γ, δ, δ' are named clamp loader. This complex assembles the β subunit sliding clamp unto the DNA.

Prokaryotic DNA polymerases:

Eukaryotic DNA polymerases:

  • Pol α,β,γ,δ,ε,ζ,η,ι,κ. See also DNA polymerase beta.
  • Rev1 is a Dpo involved in replication over DNA lesions.
  • Terminal deoxynucleotidyl transferase (TdT) is a family X Dpo expressed in immature lymphoid cells. TdT adds nucleotides to exons during antibody gene recombination.

in Family A DNA polymerase I (1taq).

in Family A DNA polymerase I (1taq).[2]

See also User:Karl E. Zahn/RB69 DNA polymerase (gp43)

Family A DNA polymerase I complex with octylglucoside 1taq

Drag the structure with the mouse to rotate

3D Structures of DNA polymerase3D Structures of DNA polymerase

Updated on 16-November-2016

ReferencesReferences

  1. Steitz TA. DNA polymerases: structural diversity and common mechanisms. J Biol Chem. 1999 Jun 18;274(25):17395-8. PMID:10364165
  2. Kim Y, Eom SH, Wang J, Lee DS, Suh SW, Steitz TA. Crystal structure of Thermus aquaticus DNA polymerase. Nature. 1995 Aug 17;376(6541):612-6. PMID:7637814 doi:http://dx.doi.org/10.1038/376612a0

Proteopedia Page Contributors and Editors (what is this?)Proteopedia Page Contributors and Editors (what is this?)

Alexander Berchansky, David Canner, Michal Harel, Joel L. Sussman, Cori Damron, Emily Bray, Jaime Prilusky