{"title":"Cloning, purification, crystallization and preliminary X-ray studies of human α1-microglobulin.","authors":"Yangli Zhang, Zengqiang Gao, Zhenzhen Zhang, Miao Luo, Ailong Huang, Yuhui Dong, Deqiang Wang","doi":"10.1107/S1744309112016569","DOIUrl":"10.1107/S1744309112016569","url":null,"abstract":"<p><p>α(1)-Microglobulin (α(1)m) is one of the phylogenetically most widespread lipocalins and is distributed in various organs and tissues, including liver, heart, eye, kidney, brain, lung, pancreas and skeletal muscle. α(1)m has been found to exert multifarious functions, including interacting with IgA, albumin and prothrombin, binding strongly to haem and exhibiting reductase activity. Nevertheless, little structural information is available regarding these functions of α(1)m. Since determination of three-dimensional structure is a powerful means of functional characterization, X-ray crystallography was used to accomplish this task. Here, the expression, purification, crystallization and preliminary crystallographic analysis of human α(1)m are reported. The crystal belonged to space group P4(3), with unit-cell parameters a = b = 36.45, c = 112.68 Å, and diffracted to a resolution of 2.0 Å. The crystals are most likely to contain one molecule in the asymmetric unit, with a V(M) value of 1.63 Å(3) Da(-1).</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"692-4"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370912/pdf/f-68-00692.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30679380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Purification, crystallization and preliminary X-ray analysis of human histidine decarboxylase.","authors":"Hirofumi Komori, Yoko Nitta, Hiroshi Ueno, Yoshiki Higuchi","doi":"10.1107/S1744309112015692","DOIUrl":"https://doi.org/10.1107/S1744309112015692","url":null,"abstract":"<p><p>The core domain of a human histidine decarboxylase mutant was purified and cocrystallized with the inhibitor L-histidine methyl ester. Using synchrotron radiation, a data set was collected from a single crystal at 100 K to 1.8 Å resolution. The crystal belonged to space group C2, with unit-cell parameters a = 215.16, b = 112.72, c = 171.39 Å, β = 110.3°. Molecular replacement was carried out using the structure of aromatic L-amino-acid decarboxylase as a search model. The crystal contained three dimers per asymmetric unit, with a Matthews coefficient (V(M)) of 3.01 Å(3) Da(-1) and an estimated solvent content of 59.1%.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"675-7"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1107/S1744309112015692","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30681017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Richard C Page, Zhen Xu, Joseph Amick, Jay C Nix, Saurav Misra
{"title":"Crystallization and preliminary X-ray crystallographic analysis of the Bag2 amino-terminal domain from Mus musculus.","authors":"Richard C Page, Zhen Xu, Joseph Amick, Jay C Nix, Saurav Misra","doi":"10.1107/S1744309112013267","DOIUrl":"10.1107/S1744309112013267","url":null,"abstract":"<p><p>Bag2, an atypical member of the Bag family of Hsp70 co-chaperones, acts as both an Hsp70 nucleotide-exchange factor and an inhibitor of the Hsp70-binding E3 ubiquitin ligase CHIP (carboxyl-terminus of Hsp70-interacting protein). The amino-terminal domain of Bag2 (Bag2-NTD), which is required for inhibition of CHIP, has no sequence homologs in the PDB. Native and selenomethionyl (SeMet) forms of Bag2-NTD were crystallized by hanging-drop vapor diffusion. Native Bag2-NTD crystals diffracted to 2.27 Å resolution and belonged to space group P2(1)2(1)2(1), with unit-cell parameters a = 75.5, b = 84.7, c = 114.1 Å. SeMet Bag2-NTD crystals diffracted to 3.10 Å resolution and belonged to space group P2(1)2(1)2(1), with unit-cell parameters a = 37.2, b = 53.3, c = 86.7 Å. Phases for the SeMet Bag2-NTD crystal were solved by single-wavelength anomalous diffraction. Initial phasing and model building using the 3.10 Å resolution SeMet Bag2-NTD data set suggested that Bag2-NTD forms a dimer and adopts a fold distinct from those of any domains annotated in the Pfam or SMART domain databases.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"647-51"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370901/pdf/f-68-00647.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30678523","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystallization and preliminary X-ray analysis of the reductase component of p-hydroxyphenylacetate 3-hydroxylase from Acinetobacter baumannii.","authors":"Worrapoj Oonanant, Jeerus Sucharitakul, Pimchai Chaiyen, Jirundon Yuvaniyama","doi":"10.1107/S1744309112016909","DOIUrl":"10.1107/S1744309112016909","url":null,"abstract":"<p><p>p-Hydroxyphenylacetate 3-hydroxylase (HPAH) from Acinetobacter baumannii catalyzes the hydroxylation of p-hydroxyphenylacetate (HPA) at the ortho position to yield 3,4-dihydroxyphenylacetate (DHPA). HPAH from A. baumannii is a two-component flavoprotein consisting of a smaller reductase (C(1)) component and a larger oxygenase (C(2)) component. The C(1) component supplies a reduced flavin in its free form to the C(2) counterpart for hydroxylation. In addition, HPA can bind to C(1) and enhance the flavin-reduction rate without becoming hydroxylated. The recombinant C(1) component was purified and crystallized using the microbatch method at 295 K. X-ray diffraction data were collected to 2.3 Å resolution using synchrotron radiation on the BL13B1 beamline at NSRRC, Taiwan. The crystal belonged to the orthorhombic space group P2(1)2(1)2(1), with unit-cell parameters a = 47.78, b = 59.92, c = 211.85 Å, and contained two molecules of C(1) per asymmetric unit.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"720-3"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370920/pdf/f-68-00720.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30679349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tomoko Mase, Hideya Yabuki, Masahiko Okai, Jun Ohtsuka, Fabiana Lica Imai, Yuji Nagata, Masaru Tanokura
{"title":"Crystallization and preliminary X-ray analysis of the haloalkane dehalogenase DatA from Agrobacterium tumefaciens C58.","authors":"Tomoko Mase, Hideya Yabuki, Masahiko Okai, Jun Ohtsuka, Fabiana Lica Imai, Yuji Nagata, Masaru Tanokura","doi":"10.1107/S1744309112013942","DOIUrl":"10.1107/S1744309112013942","url":null,"abstract":"<p><p>Haloalkane dehalogenases are enzymes that catalyze the hydrolytic reaction of a wide variety of haloalkyl substrates to form the corresponding alcohol and hydrogen halide products. DatA from Agrobacterium tumefaciens C58 is a haloalkane dehalogenase that has a unique pair of halide-binding residues, asparagine (Asn43) and tyrosine (Tyr109), instead of the asparagine and tryptophan that are conserved in other members of the subfamily. DatA was expressed in Escherichia coli, purified and crystallized using the sitting-drop vapour-diffusion method with a reservoir solution consisting of 0.1 M CHES pH 8.6, 1.0 M potassium sodium tartrate, 0.2 M lithium sulfate, 0.01 M barium chloride. X-ray diffraction data were collected to 1.70 Å resolution. The space group of the crystal was determined as the primitive tetragonal space group P422, with unit-cell parameters a = b = 123.7, c = 88.1 Å. The crystal contained two molecules in the asymmetric unit.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"652-4"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370902/pdf/f-68-00652.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30678522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystallization and preliminary X-ray analysis of the C-terminal domain of CCM2, part of a novel adaptor protein involved in cerebral cavernous malformations.","authors":"Xiaoyan Wang, Jingjin Ding, Dacheng Wang","doi":"10.1107/S1744309112016181","DOIUrl":"10.1107/S1744309112016181","url":null,"abstract":"<p><p>Cerebral cavernous malformation 2 (CCM2) is a novel two-domain adaptor protein which participates in multiple cellular signalling pathways. Loss-of-function mutations in the gene encoding CCM2 are the cause of common human vascular lesions called cerebral cavernous malformations. Here, the purification, crystallization and preliminary X-ray crystallographic studies of the C-terminal domain of CCM2 (CCM2-Ct) are reported. Diffraction data were collected from native and selenomethionine-substituted crystals of CCM2-Ct to resolutions of 2.9 and 2.7 Å, respectively. Both crystals belonged to space group I4(1)22 with similar unit-cell parameters. The native crystals had unit-cell parameters a = b = 113.29, c = 101.62 Å.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"683-6"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370910/pdf/f-68-00683.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30681019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
George A Penman, Deborah E A Lockhart, Andrew Ferenbach, Daan M F van Aalten
{"title":"Purification, crystallization and preliminary X-ray diffraction data of UDP-galactopyranose mutase from Aspergillus fumigatus.","authors":"George A Penman, Deborah E A Lockhart, Andrew Ferenbach, Daan M F van Aalten","doi":"10.1107/S1744309112017915","DOIUrl":"10.1107/S1744309112017915","url":null,"abstract":"<p><p>Aspergillus fumigatus UDP-galactopyranose mutase (AfUGM) is a potential drug target involved in the synthesis of the cell wall of this fungal pathogen. AfUGM was recombinantly produced in Escherichia coli, purified and crystallized by the sitting-drop method, producing orthorhombic crystals that diffracted to a resolution of 3.25 Å. The crystals contained four molecules per asymmetric unit and belonged to space group P2(1)2(1)2(1), with unit-cell parameters a = 127.72, b = 134.30, c = 173.84 Å. Incorporation of selenomethionine was achieved, but the resulting crystals did not allow solution of the phase problem.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":"68 Pt 6","pages":"705-8"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1107/S1744309112017915","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9577981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Crystallization and preliminary X-ray crystallographic analysis of bacterial tRNA(Sec) in complex with seryl-tRNA synthetase.","authors":"Yuzuru Itoh, Shun Ichi Sekine, Shigeyuki Yokoyama","doi":"10.1107/S1744309112016004","DOIUrl":"10.1107/S1744309112016004","url":null,"abstract":"<p><p>Selenocysteine (Sec) is translationally incorporated into proteins in response to the UGA codon. The tRNA specific to Sec (tRNA(Sec)) is first ligated with serine by seryl-tRNA synthetase (SerRS). To elucidate the tertiary structure of bacterial tRNA(Sec) and its specific interaction with SerRS, the bacterial tRNA(Sec) from Aquifex aeolicus was crystallized as the heterologous complex with the archaeal SerRS from Methanopyrus kandleri. Although X-ray diffraction by crystals of tRNA(Sec) in complex with wild-type SerRS was rather poor (to 5.7 Å resolution), the resolution was improved by introducing point mutations targeting the crystal-packing interface. Heavy-atom labelling also contributed to resolution improvement. A 3.2 Å resolution diffraction data set for phase determination was obtained from a K(2)Pt(CN)(4)-soaked crystal.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"678-82"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370909/pdf/f-68-00678.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30681018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Carsten Wrenger, Ingrid B Müller, Sabine Butzloff, Rositsa Jordanova, Sergey Lunev, Matthew R Groves
{"title":"Crystallization and preliminary X-ray diffraction of malate dehydrogenase from Plasmodium falciparum.","authors":"Carsten Wrenger, Ingrid B Müller, Sabine Butzloff, Rositsa Jordanova, Sergey Lunev, Matthew R Groves","doi":"10.1107/S1744309112014571","DOIUrl":"10.1107/S1744309112014571","url":null,"abstract":"<p><p>The expression, purification, crystallization and preliminary X-ray diffraction characterization of malate dehydrogenase (MDH) from the malarial parasite Plasmodium falciparum (PfMDH) are reported. In order to gain a deeper understanding of the function and role of PfMDH, the protein was purified to homogeneity. The purified protein crystallized in space group P1, with unit-cell parameters a = 72, b = 157, c = 159 Å, α = 105, β = 101, γ = 95°. The resulting crystals diffracted to a maximal resolution of 2.24 Å and the structure has been solved by molecular replacement, with 16 monomers in the asymmetric unit. The 16 monomers are arranged into four independent tetramers, in agreement with previous reports demonstrating the tetrameric solution state of PfMDH. The X-ray structure of PfMDH is expected to clarify the differences in catalysis by PfMDH compared with other MDH family members and to provide a basis for the structure-based design of specific PfMDH inhibitors as well as general MDH inhibitors.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"659-62"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370904/pdf/f-68-00659.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30681013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Andrzej Lyskowski, Martin Tengg, Georg Steinkellner, Helmut Schwab, Mandana Gruber-Khadjawi, Karl Gruber
{"title":"Crystallization of the novel S-adenosyl-L-methionine-dependent C-methyltransferase CouO from Streptomyces rishiriensis and preliminary diffraction data analysis.","authors":"Andrzej Lyskowski, Martin Tengg, Georg Steinkellner, Helmut Schwab, Mandana Gruber-Khadjawi, Karl Gruber","doi":"10.1107/S1744309112017137","DOIUrl":"10.1107/S1744309112017137","url":null,"abstract":"<p><p>Recombinant Q9F8T9 protein from Streptomyces rishiriensis (CouO), an S-adenosyl-L-methionine-dependent C-methyltransferase, has been successfully cloned, expressed and purified. CouO was crystallized from a single condition in the Morpheus crystallization screen. A vitrified crystal diffracted to 2.05 Å resolution and belonged to space group P2(1), with unit-cell parameters a = 33.02, b = 82.87, c = 76.77 Å, β = 96.93°.</p>","PeriodicalId":7310,"journal":{"name":"Acta Crystallographica Section F-structural Biology and Crystallization Communications","volume":" ","pages":"698-700"},"PeriodicalIF":0.9,"publicationDate":"2012-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3370914/pdf/f-68-00698.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"30679382","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}