8d9d

Human DNA polymerase-alpha/primase elongation complex II bound to primer/template

spinqualitylabelsall models 8d9d, resolution 3.59Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8d9d is a 6 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.59Å Ligands: DTP, GTP, MG, SF4, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function PRI1_HUMAN DNA primase is the polymerase that synthesizes small RNA primers for the Okazaki fragments made during discontinuous DNA replication. Publication Abstract from PubMed The synthesis of RNA-DNA primer by primosome requires coordination between primase and DNA polymerase alpha subunits, which is accompanied by unknown architectural rearrangements of multiple domains. Using cryogenic electron microscopy, we solved a 3.6 A human primosome structure caught at an early stage of RNA primer elongation with deoxynucleotides. The structure confirms a long-standing role of primase large subunit and reveals new insights into how primosome is limited to synthesizing short RNA-DNA primers. Structures of human primosome elongation complexes.,He Q, Baranovskiy AG, Morstadt LM, Lisova AE, Babayeva ND, Lusk BL, Lim CJ, Tahirov TH Nat Struct Mol Biol. 2023 May;30(5):579-583. doi: 10.1038/s41594-023-00971-3. , Epub 2023 Apr 17. PMID:37069376 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also RNA polymerase 3D structures

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