Abstract：
:Raman spectroscopy was used to determine the mineralogical composition of the calcareous tubes of three species belonging to the family Cirratulidae. In all three cases, the tubes were found to be aragonitic, confirming previous inferences based on EDX and thin section studies, and corroborated by new EDX analyses revealing the presence of Sr but no Mg. Biomineralization in cirratulids is first recorded in the Oligocene epoch, at a time of aragonite seas. Similarly, the mineralogies of the earliest skeletons matched seawater chemistry in three other polychaete groups that independently evolved calcareous skeletons.
journal_name
J Struct Bioljournal_title
Journal of structural biologyauthors
Taylor PD,Vinn O,Kudryavtsev A,Schopf JWdoi
10.1016/j.jsb.2010.05.010subject
Has Abstractpub_date
2010-09-01 00:00:00pages
402-5issue
3eissn
1047-8477issn
1095-8657pii
S1047-8477(10)00161-9journal_volume
171pub_type
杂志文章abstract：:Although the fundamental steps in Fourier-based image analysis of electron micrographs of helical structures have not changed significantly since the techniques were developed 30 years ago, there have been developments which aid both the analysis itself and the interpretation of results. Increases in computational res...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1006/jsbi.1996.0027
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abstract：:A new era has begun for single particle cryo-electron microscopy (cryoEM) which can now compete with X-ray crystallography for determination of protein structures. The development of direct detectors constitutes a revolution that has led to a wave of near-atomic resolution cryoEM reconstructions. However, regardless o...
journal_title：Journal of structural biology
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journal_title：Journal of structural biology
pub_type： 杂志文章,评审
doi：10.1016/s1047-8477(03)00039-x
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abstract：:The nuclear arrangement of the ABL, c-MYC, and RB1 genes was quantitatively investigated in human undifferentiated HL-60 cells and in a terminally differentiated population of human granulocytes. The ABL gene was expressed in both cell types, the c-MYC gene was active in HL-60 cells and down-regulated in granulocytes,...
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journal_title：Journal of structural biology
pub_type： 杂志文章
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abstract：:In Streptomycetes, tetracycline repressor family of transcription regulators (TetR-FTRs) controls various biological processes including antibiotic biosynthesis, cellular morphology and innate resistance. Here, we focus on understanding the structural basis of transcription regulation by CprB, a member of TetR-FTRs fr...
journal_title：Journal of structural biology
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journal_title：Journal of structural biology
pub_type： 杂志文章
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journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2005.07.006
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journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2016.04.002
更新日期：2016-07-01 00:00:00
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journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2008.03.005
更新日期：2008-06-01 00:00:00
abstract：:The structure of Panicum Mosaic Virus (PMV) was determined by X-ray diffraction analysis to 2.9Å resolution. The crystals were of pseudo symmetry F23; the true crystallographic unit cell was of space group P2(1) with a=411.7Å, b=403.9Å and c=412.5Å, with β=89.7°. The asymmetric unit was two entire T=3 virus particles,...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2012.10.012
更新日期：2013-01-01 00:00:00
abstract：:Computational protein design methods have enabled the design of novel protein structures, but they are often still limited to small proteins and symmetric systems. To expand the size of designable proteins while controlling the overall structure, we developed Elfin, a genetic algorithm for the design of novel proteins...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2017.09.001
更新日期：2018-02-01 00:00:00
abstract：:To date, the calcareous tubes of serpulid marine worms have not been studied extensively in a biomineralization context. The structure and composition of the tube shell and adhesive cement of the marine tubeworm Hydroides dianthus were studied using a variety of characterization techniques, including powder XRD, FTIR,...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2009.09.008
更新日期：2010-02-01 00:00:00
abstract：:AVS (Application Visualization System) is commercially available software for analyzing and viewing data. AVS is primarily used in the physical sciences and engineering, and here we describe the application of AVS for examining three-dimensional density maps generated by electron microscopy and image processing. For t...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1006/jsbi.1996.0017
更新日期：1996-01-01 00:00:00
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journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2007.02.010
更新日期：2007-08-01 00:00:00
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journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2006.03.001
更新日期：2006-10-01 00:00:00
abstract：:Lichens are symbiotic associations of fungi and algae (or cyanobacteria). Fungal cells produce large amounts of lipid, assisted by algae, and secrete them out of the cells. Some of the secreted lipids crystallize in the thallus of the lichen. The crystalline materials sometimes occupy 30% of total dry weight of the th...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2004.01.015
更新日期：2004-06-01 00:00:00
abstract：:Cryo Electron Microscopy is a powerful Structural Biology technique, allowing the elucidation of the three-dimensional structure of biological macromolecules. In particular, the structural study of purified macromolecules -often referred as Single Particle Analysis(SPA)- is normally performed through an iterative proc...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2015.01.009
更新日期：2015-03-01 00:00:00
abstract：:The phycobilisome photosynthetic antenna complex, found in cyanobacteria and red-algae, interacts with proteins expressed specifically to deal with different forms of physiological stress. Under conditions of nutrient starvation, the NblA protein is required for the process that leads to phycobilisome degradation and ...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2006.10.021
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abstract：:Three-dimensional crystals were obtained for the membrane domain of the human erythrocyte anion exchanger (AE1, Band 3). Protein homogeneity and stability and the delicate balance between the detergent used and the amount of phospholipids copurifying are critical to the formation of three-dimensional crystals of the A...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/s1047-8477(02)00010-2
更新日期：2002-03-01 00:00:00
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journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1006/jsbi.2001.4443
更新日期：2001-12-01 00:00:00
abstract：:Neuropeptide gamma (NPgamma) is a neurokinin-2 (NK-2) receptor selective agonist, which plays an important role in mediation of asthma and elicits a wide range of biological responses like bronchoconstriction, vasodepression and regulation of endocrine functions. The structure determination of this peptide agonist is ...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2004.08.008
更新日期：2004-12-01 00:00:00
abstract：:Amyloid formation is a key pathological feature of Alzheimer's disease and is considered to be a major contributing factor to neurodegeneration and clinical dementia. Amyloid is found as both diffuse and senile plaques in the parenchyma of the brain and is composed primarily of the 40- to 42-residue amyloid-beta (Abet...
journal_title：Journal of structural biology
pub_type： 杂志文章,评审
doi：10.1006/jsbi.2000.4289
更新日期：2000-06-01 00:00:00
abstract：:Crustaceans form clots by the rapid crosslinking of a hemolymph clottable protein (CP) to form long, branched polymers. Clotting limits hemolymph loss from wounds as well as playing a part in the innate immune response. CP is a 420 kDa homodimer with a large quantity of associated lipid, primarily the carotenoid pigme...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2005.06.008
更新日期：2005-09-01 00:00:00
abstract：:Nonlinear optical processes have found widespread applications in fields ranging from fundamental physics to biomedicine. In this study, we attempted to evaluate cell activation by using the Third Harmonic Generation (THG) imaging microscopy as a new diagnostic tool. The BV-2 microglia cell line with or without activa...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2014.11.011
更新日期：2015-02-01 00:00:00
abstract：:Immunoelectron microscopy of serial sections of leaf cells of wheat doubly infected by wheat streak mosaic virus and Agropyron mosaic virus or wheat spindle streak mosaic virus showed that structural proteins or virions associated only with homologous cylindrical inclusions (CI) or with self in aggregates. CI protein ...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1006/jsbi.1993.1021
更新日期：1993-05-01 00:00:00
abstract：:Titin is a giant protein that spans half of the striated muscle sarcomere. The I-band portion of titin extends as the sarcomere is stretched, developing what is known as passive force. This portion of the molecule is composed mainly of tandem immunoglobulin (Ig) segments, consisting of serially linked Ig-like domains,...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1006/jsbi.1998.3984
更新日期：1998-01-01 00:00:00
abstract：:Here we introduce plusTipTracker, a Matlab-based open source software package that combines automated tracking, data analysis, and visualization tools for movies of fluorescently-labeled microtubule (MT) plus end binding proteins (+TIPs). Although +TIPs mark only phases of MT growth, the plusTipTracker software allows...
journal_title：Journal of structural biology
pub_type： 杂志文章
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更新日期：2011-11-01 00:00:00
abstract：:Amyloid formation is associated with a range of debilitating human disorders including Alzheimer's and prion diseases. The amyloid structure is essential for understanding the role of amyloids in these diseases. Amyloid formation of Ure2 protein underlies the yeast prion [URE3]. Here we use site-directed spin labeling...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2012.08.008
更新日期：2012-11-01 00:00:00
abstract：:Magnetotactic bacteria are Gram-negative bacteria that navigate along geomagnetic fields using the magnetosome, an organelle that consists of a membrane-enveloped magnetic nanoparticle. Magnetite formation and its properties are controlled by a specific set of proteins. MamC is a small magnetosome-membrane protein tha...
journal_title：Journal of structural biology
pub_type： 杂志文章
doi：10.1016/j.jsb.2016.03.001
更新日期：2016-06-01 00:00:00
