6ptr

Crystal structure of a DnaN sliding clamp (DNA polymerase III subunit beta) from Bartonella birtlesii bound to griselimycin

spinqualitylabelsall models 6ptr, resolution 1.75Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6ptr is a 4 chain structure with sequence from Bartonella birtlesii LL-WM9 and Streptomyces griseus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.75Å Ligands: ACE, EDO, IOD, MLU, MP8, MVA, NZC Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function J1IY24_9HYPH Confers DNA tethering and processivity to DNA polymerases and other proteins. Acts as a clamp, forming a ring around DNA (a reaction catalyzed by the clamp-loading complex) which diffuses in an ATP-independent manner freely and bidirectionally along dsDNA. Initially characterized for its ability to contact the catalytic subunit of DNA polymerase III (Pol III), a complex, multichain enzyme responsible for most of the replicative synthesis in bacteria; Pol III exhibits 3'-5' exonuclease proofreading activity. The beta chain is required for initiation of replication as well as for processivity of DNA replication.[PIRNR:PIRNR000804] See Also DNA polymerase 3D structures

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