| Structural highlights
Function
PK3C3_HUMAN Catalytic subunit of the PI3K complex that mediates formation of phosphatidylinositol 3-phosphate which plays a key role in initiation and maturation of autophagosomes. Involved in the transport of lysosomal enzyme precursors to lysosomes. Required for the abcission step in cytokinesis. Required for transport from early to late endosomes.[1] [2] [3]
Publication Abstract from PubMed
Currently, macromolecular crystallography projects often require the use of highly automated facilities for crystallization and X-ray data collection. However, crystal harvesting and processing largely depend on manual operations. Here, a series of new methods are presented based on the use of a low X-ray-background film as a crystallization support and a photoablation laser that enable the automation of major operations required for the preparation of crystals for X-ray diffraction experiments. In this approach, the controlled removal of the mother liquor before crystal mounting simplifies the cryocooling process, in many cases eliminating the use of cryoprotectant agents, while crystal-soaking experiments are performed through diffusion, precluding the need for repeated sample-recovery and transfer operations. Moreover, the high-precision laser enables new mounting strategies that are not accessible through other methods. This approach bridges an important gap in automation and can contribute to expanding the capabilities of modern macromolecular crystallography facilities.
Automated harvesting and processing of protein crystals through laser photoablation.,Zander U, Hoffmann G, Cornaciu I, Marquette JP, Papp G, Landret C, Seroul G, Sinoir J, Rower M, Felisaz F, Rodriguez-Puente S, Mariaule V, Murphy P, Mathieu M, Cipriani F, Marquez JA Acta Crystallogr D Struct Biol. 2016 Apr 1;72(Pt 4):454-66. doi:, 10.1107/S2059798316000954. Epub 2016 Mar 24. PMID:27050125[4]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
See Also
References
- ↑ Volinia S, Dhand R, Vanhaesebroeck B, MacDougall LK, Stein R, Zvelebil MJ, Domin J, Panaretou C, Waterfield MD. A human phosphatidylinositol 3-kinase complex related to the yeast Vps34p-Vps15p protein sorting system. EMBO J. 1995 Jul 17;14(14):3339-48. PMID:7628435
- ↑ Stein MP, Feng Y, Cooper KL, Welford AM, Wandinger-Ness A. Human VPS34 and p150 are Rab7 interacting partners. Traffic. 2003 Nov;4(11):754-71. PMID:14617358
- ↑ Sagona AP, Nezis IP, Pedersen NM, Liestol K, Poulton J, Rusten TE, Skotheim RI, Raiborg C, Stenmark H. PtdIns(3)P controls cytokinesis through KIF13A-mediated recruitment of FYVE-CENT to the midbody. Nat Cell Biol. 2010 Apr;12(4):362-71. doi: 10.1038/ncb2036. Epub 2010 Mar 7. PMID:20208530 doi:http://dx.doi.org/10.1038/ncb2036
- ↑ Zander U, Hoffmann G, Cornaciu I, Marquette JP, Papp G, Landret C, Seroul G, Sinoir J, Rower M, Felisaz F, Rodriguez-Puente S, Mariaule V, Murphy P, Mathieu M, Cipriani F, Marquez JA. Automated harvesting and processing of protein crystals through laser photoablation. Acta Crystallogr D Struct Biol. 2016 Apr 1;72(Pt 4):454-66. doi:, 10.1107/S2059798316000954. Epub 2016 Mar 24. PMID:27050125 doi:http://dx.doi.org/10.1107/S2059798316000954
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