Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method.

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Abstract Text:

Q Hao,M M Harding,J W Campbell,

In the Laue diffraction pattern, 10--20% of the spots result from the exact superposition of two or more reflections that are ;harmonics', e.g. hkl; 2h 2k 2l, ...; a high proportion of these are low-resolution reflections. For the solution of large or difficult structure problems, the intensities of the remaining 80-90% of the reflections, measurable as singles, may not be sufficient and thus the evaluation of the intensities of the components of the multiple spots is important. A new procedure, DECONV, for this deconvolution using real-space density modifications on the Patterson map is given. This development is based on a procedure in reciprocal space related to direct methods [Hao, Campbell, Harding & Helliwell (1993). Acta Cryst. A49, 528-531]. A Patterson map is calculated using single reflections and modified by removing negative densities and squaring with an appropriate adjustment at the origin peak. The procedure can be repeated until convergence is reached. It has been tested with Laue diffraction data from 4Zn insulin and cytochrome c peroxidase (CCP). 304 and 1134 reflection intensities were evaluated from multiple spots of insulin and CCP, respectively; the mean fractional differences (on F), showing the agreement with high-quality monochromatic data, were 0.27 and 0.21, respectively.

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Publishing Authors By Initials

Q Hao,MM Harding,JW Campbell,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Journal of synchrotron radiation

VOLUME: 2

Page Numbers: 27-30

Journal Abbreviation:

ISSN: 0909-0495

DAY: 1

MONTH: Jan

YEAR: 1995

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 9888878

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method.

AFFILIATION:

Country: Denmark

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Synchrotron Radiat

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots III Using a Real-Space Density Modification Method Related Publications

• "Una mujer trabaja doble aqui": Vignette-based focus groups on stress and work for Latina blue-collar women in eastern North Carolina.
• A non-universal transcription factor? The Leishmania tarentolae TATA box-binding protein LtTBP associates with a subset of promoters.
• A novel interaction between DNA ligase III and DNA polymerase gamma plays an essential role in mitochondrial DNA stability.
• Alfa 1 antitrypsin and protease levels in Puerto Rican asthmatics: a pilot study.
• Antimicrobial therapy in genitourinary tract infections.
• Comparison of two methods for teaching therapists to score the test of infant motor performance.
• Conserving tropical nature: current challenges for ecologists.
• Coordinated regulation and widespread cellular expression of interferon-stimulated genes (ISG) ISG-49, ISG-54, and ISG-56 in the central nervous system after infection with distinct viruses.
• Directed evolution of a monomeric, bright and photostable version of Clavularia cyan fluorescent protein: structural characterization and applications in fluorescence imaging.
• Effects of interlayer coupling on the irreversibility lines of NbN/AlN superconducting multilayers.
• Endothelium-derived steroidogenic factor enhances angiotensin II-stimulated aldosterone release by bovine zona glomerulosa cells.
• Epitope mapping of antigenic MUC1 peptides to breast cancer antibody fragment B27.29: a heteronuclear NMR study.
• Evaluation of Reflection Intensities for the Components of Multiple Laue Diffraction Spots. III. Using a Real-Space Density Modification Method.
• Family-centred practice in the interface between child welfare and the alcohol and drug field.
• Financial consequences of rural hospital long-term care strategies.
• Gastric pressure response to low dose dopamine infusion in normal man.
• Genetic and epigenetic analysis of CHEK2 in sporadic breast, colon, and ovarian cancers.
• Herpes simplex virus type 1 induction of chemokine production is unrelated to viral load in the cornea but not in the nervous system.
• Image-plate synchrotron laue data collection and subsequent structural analysis of a small test crystal of a nickel-containing aluminophosphate.
• Indications for urologic examination in children.
• Interaction between dietary intake and ovariectomy on concentrations of insulin-like growth factor-I, GH and LH in plasma of heifers.
• Intimate partner violence and health provider training and screening in the news.
• Juxtaglomerular apparatus tumor: a rare, surgically correctable cause of hypertension.
• Mitotic Cdc6 stabilizes anaphase-promoting complex substrates by a partially Cdc28-independent mechanism, and this stabilization is suppressed by deletion of Cdc55.
• Persistent macrophage/microglial activation and myelin disruption after experimental autoimmune encephalomyelitis in tissue inhibitor of metalloproteinase-1-deficient mice.
• Presentation and patterns of late recurrence of olfactory groove meningiomas.
• Racial disparities in the management of pediatric appenciditis.
• Request for applications:: islet cell replacement in type 1 diabetes.
• Structural and dynamic consequences of increasing repeats in a MUC1 peptide tumor antigen.
• The role of aluminum and copper on neuroinflammation and Alzheimer's disease.