title: Crystallization and preliminary X-ray analysis of a monomeric mutant of Azami-Green (mAG), an Aequorea victoria green fluorescent protein-like green-emitting fluorescent protein from the stony coral Galaxea fascicularis.
abstract: Monomeric Azami-Green (mAG) from the stony coral Galaxea fascicularis is the first monomeric green-emitting fluorescent protein that is not a derivative of Aequorea victoria green fluorescent protein (avGFP). mAG and avGFP are 27% identical in amino-acid sequence. Diffraction-quality crystals of recombinant mAG were obtained by the sitting-drop vapour-diffusion method using PEG 3350 as the precipitant. The mAG crystal diffracted X-rays to 2.20 A resolution on beamline AR-NW12A at the Photon Factory (Tsukuba, Japan). The crystal belonged to space group P1, with unit-cell parameters a = 41.78, b = 51.72, c = 52.89 A, alpha = 90.96, beta = 103.41, gamma = 101.79 degrees. The Matthews coefficient (V(M) = 2.10 A(3) Da(-1)) indicated that the crystal contained two mAG molecules per asymmetric unit.
authors.affiliation: Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo 113-8657, Japan.
authors.forename: Tatsuki
authors.initials: T
authors.lastname: Ebisawa
authors.forename: Akihiro
authors.initials: A
authors.lastname: Yamamura
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Kameda
authors.forename: Kou
authors.initials: K
authors.lastname: Hayakawa
authors.forename: Koji
authors.initials: K
authors.lastname: Nagata
authors.forename: Masaru
authors.initials: M
authors.lastname: Tanokura
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D037421:Anthozoa / Q000737:chemistry* / Q000235:genetics; D001483:Base Sequence; D018360:Crystallography, X-Ray; D017931:DNA Primers / Q000235:genetics; D049452:Green Fluorescent Proteins / Q000737:chemistry* / Q000235:genetics; D008969:Molecular Sequence Data; D009154:Mutation; D011994:Recombinant Proteins / Q000737:chemistry / Q000235:genetics; D037401:Scyphozoa / Q000737:chemistry* / Q000235:genetics; D017386:Sequence Homology, Amino Acid
chemical_list: D017931:DNA Primers; D011994:Recombinant Proteins; C485192:green fluorescent protein, Aequorea victoria; D049452:Green Fluorescent Proteins