Deltamass: Difference between revisions

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{{def|def=Difference between the observed mass of a peptide or protein and its calculated mass that is indicative of a post-translational modification.|ref=Lennon, J.J., Walsh, K.A.: Locating and identifying posttranslational modifications by in-source decay during MALDI-TOF mass spectrometry. ''Protein Sci.'' '''8''', (1999); {{doi}}10.1110/ps.8.11.2487 .}}
{{def|def=Difference between the observed mass of a peptide or protein and its calculated mass that is indicative of a post-translational modification.|ref=Lennon, J.J., Walsh, K.A.: Locating and identifying posttranslational modifications by in-source decay during MALDI-TOF mass spectrometry. ''Protein Sci.'' '''8''', 2487-2493 (1999); {{doi}}10.1110/ps.8.11.2487 .}}


{{defect}}
{{defect}}
==External links==
==External links==
*[https://goo.gl/cd1KNn 10.1002/1096-9888(200011)35:11<1335::AID-JMS70>3.0.CO;2-0] "The deltamass (= mass value following the decimal point) distribution"
*[https://goo.gl/cd1KNn 10.1002/1096-9888(200011)35:11<1335::AID-JMS70>3.0.CO;2-0] "The deltamass (= mass value following the decimal point) distribution"
*Mass Spectrometry: A Textbook, By H Gross, p. 142 "The term ''deltamass'' has been coined to define the mass value following the decimal point [[https://goo.gl/cd1KNn 75]] thereby elegantly circumventing the somewhat unfortunate terminology related to the mass defect."
*Mass Spectrometry: A Textbook, By Jurgen H Gross, p. 142 "The term ''deltamass'' has been coined to define the mass value following the decimal point [[https://goo.gl/cd1KNn 75]] thereby elegantly circumventing the somewhat unfortunate terminology related to the mass defect."

Latest revision as of 17:53, 12 June 2022

DRAFT DEFINITION
Deltamass
Difference between the exact mass and the next lowest integer.
Related Term(s):
Reference(s):

10.1002/1096-9888(200011)35:11<1335::AID-JMS70>3.0.CO;2-0

This is an unofficial draft definition presented for information and comment.

Recommended terms | Full list of terms

 


DRAFT DEFINITION
Deltamass
Difference between the observed mass of a peptide or protein and its calculated mass that is indicative of a post-translational modification.
Related Term(s):
Reference(s):

Lennon, J.J., Walsh, K.A.: Locating and identifying posttranslational modifications by in-source decay during MALDI-TOF mass spectrometry. Protein Sci. 8, 2487-2493 (1999); http://dx.doi.org/10.1110/ps.8.11.2487 .

This is an unofficial draft definition presented for information and comment.

Recommended terms | Full list of terms

 

Mass defect

Mass defect in mass spectrometry and nuclear physics

Mass defect (mass spectrometry)
The difference between the exact mass and the nearest integer mass
Mass defect (physics)
The difference between the mass of a composite particle and the sum of the masses of its parts

Links

Land, A. Neutrons in the Nucleus. I. Phys. Rev. 43, 620-623 (1933).
http://dx.doi.org/10.1103/PhysRev.43.620
Carlson (1960); High Resolution Mass Spectrometry. Interpretation of Spectra of Petroleum Fractions
http://dx.doi.org/10.1021/ac60167a032
Kendrick (1963); A Mass Scale Based on CH2= 14.0000 for High Resolution Mass Spectrometry of Organic Compounds.
http://dx.doi.org/10.1021/ac60206a048
Hughey (2001); Kendrick Mass Defect Spectrum:? A Compact Visual Analysis for Ultrahigh-Resolution Broadband Mass Spectra
http://dx.doi.org/10.1021/ac010560w
Zhang (2003); A software filter to remove interference ions from drug metabolites in accurate mass liquid chromatography/mass spectrometric analyses
http://dx.doi.org/10.1002/jms.521
Hall, M.P., Ashrafi, S., Obegi, I., Petesch, R., Peterson, J.N., Schneider, L.V. Mass defect tags for biomolecular mass spectrometry. J. Mass Spectrom. 38, 809-816 (2003).
http://dx.doi.org/10.1002/jms.493
Zhang (2009); Mass defect filter technique and its applications to drug metabolite identification by high-resolution mass spectrometry
http://dx.doi.org/10.1002/jms.1610
Sleno (2012); The use of mass defect in modern mass spectrometry
http://dx.doi.org/10.1002/jms.2953
Pourshahian (2017); Mass Defect from Nuclear Physics to Mass Spectral Analysis
http://dx.doi.org/10.1007/s13361-017-1741-9

External links

  • 10.1002/1096-9888(200011)35:11<1335::AID-JMS70>3.0.CO;2-0 "The deltamass (= mass value following the decimal point) distribution"
  • Mass Spectrometry: A Textbook, By Jurgen H Gross, p. 142 "The term deltamass has been coined to define the mass value following the decimal point [75] thereby elegantly circumventing the somewhat unfortunate terminology related to the mass defect."