6htl | pdb_00006htl

Measles Phosphoprotein Coiled-Coil Domain IPKI Variant

spinqualitylabelsall models 6htl, resolution 2.30Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 6htl is a 1 chain structure. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Ligands: CA Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Publication Abstract from PubMed The polymerase of negative-stranded RNA viruses consists of the large protein (L) and the phosphoprotein (P), the latter serving both as a chaperon and a cofactor for L. We mapped within measles virus (MeV) P the regions responsible for binding and stabilizing L and showed that the coiled-coil multimerization domain (MD) of P is required for gene expression. MeV MD is kinked as a result of the presence of a stammer. Both restoration of the heptad regularity and displacement of the stammer strongly decrease or abrogate activity in a minigenome assay. By contrast, P activity is rather tolerant of substitutions within the stammer. Single substitutions at the "a" or "d" hydrophobic anchor positions with residues of variable hydrophobicity revealed that P functionality requires a narrow range of cohesiveness of its MD. Results collectively indicate that, beyond merely ensuring P oligomerization, the MD finely tunes viral gene expression through its cohesiveness. Regulation of measles virus gene expression by P protein coiled-coil properties.,Bloyet LM, Schramm A, Lazert C, Raynal B, Hologne M, Walker O, Longhi S, Gerlier D Sci Adv. 2019 May 8;5(5):eaaw3702. doi: 10.1126/sciadv.aaw3702. eCollection 2019 , May. PMID:31086822 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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