6d65
Crystal structure of the human dual specificity phosphatase 1 catalytic domain (C258S) as a maltose binding protein fusion in complex with the designed AR protein off7Crystal structure of the human dual specificity phosphatase 1 catalytic domain (C258S) as a maltose binding protein fusion in complex with the designed AR protein off7
Structural highlights
FunctionMALE_ECOLI Involved in the high-affinity maltose membrane transport system MalEFGK. Initial receptor for the active transport of and chemotaxis toward maltooligosaccharides.DUS1_HUMAN Dual specificity phosphatase that dephosphorylates MAP kinase MAPK1/ERK2 on both 'Thr-183' and 'Tyr-185', regulating its activity during the meiotic cell cycle.[UniProtKB:P28563] Publication Abstract from PubMedThe production of high-quality crystals is the main bottleneck in determining the structures of proteins using X-ray crystallography. In addition to being recognized as a very effective solubility-enhancing fusion partner, Escherichia coli maltose-binding protein (MBP) has also been successfully employed as a `fixed-arm' crystallization chaperone in more than 100 cases. Here, it is reported that designed ankyrin-repeat proteins (DARPins) that bind with high affinity to MBP can promote the crystallization of an MBP fusion protein when the fusion protein alone fails to produce diffraction-quality crystals. As a proof of principle, three different co-crystal structures of MBP fused to the catalytic domain of human dual-specificity phosphatase 1 in complex with DARPins are reported. MBP-binding DARPins facilitate the crystallization of an MBP fusion protein.,Gumpena R, Lountos GT, Waugh DS Acta Crystallogr F Struct Biol Commun. 2018 Sep 1;74(Pt 9):549-557. doi:, 10.1107/S2053230X18009901. Epub 2018 Aug 29. PMID:30198887[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences
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