• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Sequence Alignment
Sequence Alignment

... The number of documented protein co- and post-translational modifications now exceeds 400 (http: / / abrf.org / index-.cfm/dm.home). The elucidation of protein post-translational modifications is perhaps the most important justification for proteomics as a scientific endeavor. ...
The presentation part II
The presentation part II

... • Problem: Comigration & coverage – weak spots can be seen only when they are well separated from strong spots. • No real solution yet. ...
SQUADS #4
SQUADS #4

... #6. Suppose proteins are almost completely denatured and then allowed to renature in a way that allows them to have their lowest-energy shapes. Which of the following statements about the proteins is most consistent with the information presented in the passage? A. If Scientist 1 is correct, all of ...
HSPIR: a manually annotated heat shock protein information resource
HSPIR: a manually annotated heat shock protein information resource

... We did an extensive literature survey to retrieve names, nomenclature, functions and structural information of HSPs using the PubMed query system. With this knowledge, we created a comprehensive list of standard names and alternative names for each HSP family. Structures and their corresponding sequ ...
Lecture 4 - Université d`Ottawa
Lecture 4 - Université d`Ottawa

... • Christian Anfinsen denatured ribonuclease (RNase) by heat treatment; breaks H-bonds • If the treatment was mild, the proteins would return to their normal shape at room temperature • This would mean that the information for folding the protein is in its primary sequence (how could he test?) ...
(Conjugated) Proteins in the SPC
(Conjugated) Proteins in the SPC

... content basis, the filling of the product is based on this parameter and that all dosing recommendations are based on the protein content, it is reasonable that the product literature reflects this while not neglecting the overall structure of the molecule. The Summary of Product Characteristics (SP ...
Support vector machines for protein function prediction
Support vector machines for protein function prediction

... Functional Classification of Proteins by SVM What is SVM? • Support vector machines, a machine learning method, learning by examples, statistical learning, classify objects into one of the two classes. Advantages of SVM: • Diversity of class members (no racial discrimination). • Use of sequence-der ...
第五屆生物物理新知研討會
第五屆生物物理新知研討會

... Department of Biological Science & Technology,Institute of Bioinformatics, National Chiao Tung University, HsinChu, Taiwan ...
Comp_bio_june12
Comp_bio_june12

...  Identification of and development of nove l drug/vaccine targets  Discovering natural therapeutic molecules from biological databases  Designing o f peptide/protein based inhibitors against potential targets  In silico design of molecules that can serve as vaccines, drug s and b iomarkers  Des ...
Proteins File
Proteins File

... QUATERNARY STRUCTURE These subunits fit together to form the functional protein  Therefore, the sequence of the amino acids in the primary structure will influence the protein's structure at two, three or more levels ...
Powerpoint Presentation: Proteins
Powerpoint Presentation: Proteins

... QUATERNARY STRUCTURE These subunits fit together to form the functional protein  Therefore, the sequence of the amino acids in the primary structure will influence the protein's structure at two, three or more levels ...
new proteins
new proteins

... This document may have been altered from the original ...
A High Yield Method for the Removal of Detergents from Low
A High Yield Method for the Removal of Detergents from Low

... mass spectrometric analysis of 2.5-10 ug of BSA enzymatic digests at 25-100 µg/mL prepared in the presence of detergents and processed to remove detergent revealed sequence coverage and MASCOT scores as good as or better than control BSA samples processed without detergent. The method significantly ...
Applications Overview
Applications Overview

...  Need to find a sub-population within the general protein pool that harbours tumour-specific proteins.  Heat Shock Proteins (HSPs) are molecular chaperones that act at the cross-roads of protein production in the cell.  HSPs bind to peptides generated from cellular proteins.  Certain HSP70-assoc ...
Quantitative profiling of differentiation
Quantitative profiling of differentiation

... this study resulted in ∼5,000 identified, cysteine-containing peptides that matched 1,025 proteins. Of these, the 491 proteins listed in Supplementary Table 1 and annotated with their identity, database access code, and d0:d8 ratio in naïve and PMA-treated cells were considered conclusively identifi ...
Dr Alanna Easton`s Travelling Scholarship Report, April 2014
Dr Alanna Easton`s Travelling Scholarship Report, April 2014

... differential patterns of development of the medium spiny neurons of the striatum. The Western blotting technique is widely used to quantify protein changes in discreet brain regions, but delivers no information about the spatial location of such proteins. It uses gel electrophoresis to separate prot ...
SCI 241 Protein Article research wk 5 version 6 Protein and the
SCI 241 Protein Article research wk 5 version 6 Protein and the

... Proteins are complex organic molecules made up of amino acids and are chemically similar to lipids and carbohydrates because they contain carbon, hydrogen, and oxygen atoms. Proteins, however, contain nitrogen, the element cells need to make a wide array of important biological compounds. ...
week 2 montal answers
week 2 montal answers

... 1 Angstrom equals__10x-10_____ meters. One Carbon – Carbon bond is about _____1.5 Angstroms. Unit of mass used from proteins is _Dalton_(Da)____, and one amino acid is average mass is equal to _110_____ Daltons. Therefore a 60 amino acid long protein would equal __6600____ daltons Interactions betwe ...
BS3 Crosslinking
BS3 Crosslinking

... BS3 Crosslinking Assay Bis (sulfosuccinimidyl) suberate (BS3) crosslinking was performed as described previously (Grosshans et al., 2001, 2002; Conrad et al., 2008). BS3 is a membrane-impermeable agent, which selectively crosslinks cell-surface proteins to form high-molecular-mass aggregates. Becaus ...
生物化學小考(一) 範圍ch1~ch4
生物化學小考(一) 範圍ch1~ch4

... 2. The ribosyl phosphate moiety needed for the synthesis of orotidylate, inosinate, and guanylate is provided most directly by: (A) 5-phosphoribosyl 1-pyrophosphate. (B) adenosine 5'-phosphate. (C) guanosine 5'-phosphate. (D) ribose 5-phosphate. (E) ribulose 5-phosphate. 3. A cell that is unable to ...
Proteins: Primary Structure
Proteins: Primary Structure

... Peptide Bond + H20 ...
7.5 Proteins notes
7.5 Proteins notes

... The lining of the channel itself will be of polar amino acids to allow the diffusion of charged molecules and ions. Enzymes: Polar amino acids within the active site of an enzyme allow a chemical interaction between the substrate and the enzyme to form an activated complex. This transitional state a ...
lab.4 Quantitative of proteins
lab.4 Quantitative of proteins

... activity, via a color change. These reactions can be performed directly inside the spectrophotometer.  In principle, all measurements occur in the visible range of light (approx. 380 nm - 780 nm). ...
New construction kit for designing new proteins
New construction kit for designing new proteins

... switching between laboratory work and computers, as all theoretical findings need to be confirmed experimentally. This means that it must be proven in the laboratory that the fragments can be recombined into new proteins with the desired functions. The Protein Lego project is therefore specifically ...
PATHOLOGY  NEW YORK UNIVERSITY SCHOOL OF MEDICINE
PATHOLOGY NEW YORK UNIVERSITY SCHOOL OF MEDICINE

... Yet, not everyone expected this family of orphan proteins to wield power over so many important cellular processes. Pagano's research group has revealed that F-box proteins help control cell proliferation, DNA-damage checkpoints, chromosomal stability, ribosomal biogenesis, protein synthesis, apopto ...
< 1 ... 68 69 70 71 72 73 74 75 76 ... 111 >

Protein mass spectrometry



Protein mass spectrometry refers to the application of mass spectrometry to the study of proteins. Mass spectrometry is an important emerging method for the characterization of proteins. The two primary methods for ionization of whole proteins are electrospray ionization (ESI) and matrix-assisted laser desorption/ionization (MALDI). In keeping with the performance and mass range of available mass spectrometers, two approaches are used for characterizing proteins. In the first, intact proteins are ionized by either of the two techniques described above, and then introduced to a mass analyzer. This approach is referred to as ""top-down"" strategy of protein analysis. In the second, proteins are enzymatically digested into smaller peptides using a protease such as trypsin. Subsequently these peptides are introduced into the mass spectrometer and identified by peptide mass fingerprinting or tandem mass spectrometry. Hence, this latter approach (also called ""bottom-up"" proteomics) uses identification at the peptide level to infer the existence of proteins.Whole protein mass analysis is primarily conducted using either time-of-flight (TOF) MS, or Fourier transform ion cyclotron resonance (FT-ICR). These two types of instrument are preferable here because of their wide mass range, and in the case of FT-ICR, its high mass accuracy. Mass analysis of proteolytic peptides is a much more popular method of protein characterization, as cheaper instrument designs can be used for characterization. Additionally, sample preparation is easier once whole proteins have been digested into smaller peptide fragments. The most widely used instrument for peptide mass analysis are the MALDI time-of-flight instruments as they permit the acquisition of peptide mass fingerprints (PMFs) at high pace (1 PMF can be analyzed in approx. 10 sec). Multiple stage quadrupole-time-of-flight and the quadrupole ion trap also find use in this application.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report