Secondary structure of Src homology 2 domain of c-Abl by heteronuclear NMR spectroscopy in solution

Michael Overduin, Bruce Mayer, Carlos B. Rios, David Baltimore, David Cowburn

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The Src homology 2 (SH2) domain is a recognition motif thought to mediate the association of the cytoplasmic proteins involved in signal transduction by binding to phosphotyrosyl-containing sequences in proteins. Assignments of nearly all 1H and 15N resonances of the SH2 domain from the e-Abl protein-tyrosine kinase have been obtained from homo-structure and heteronuclear NMR experiments. The secondary structure has been elucidated from the pattern of nuclear Overhauser effects, from vicinal coupling constants, and from observation of slowly exchanging amino hydrogens. The secondary structure contains two α-helices and eight β-strands, abx of which are arranged in two contiguous, antiparallel β-sheets. Residues believed to be involved in phosphotyrosyl legand binding are on a face of one β-sheet. The alignment of homologous sequences on the basis of secondary structure suggests a conserved global fold in a family of SH2 domains.

Original languageEnglish (US)
Pages (from-to)11673-11677
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume89
Issue number24
StatePublished - 1992
Externally publishedYes

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Biomolecular Nuclear Magnetic Resonance
src Homology Domains
Magnetic Resonance Spectroscopy
Sequence Homology
Protein-Tyrosine Kinases
Hydrogen
Signal Transduction
Proteins
Observation

Keywords

  • C-abl
  • Oncogene

ASJC Scopus subject areas

  • Genetics
  • General

Cite this

Secondary structure of Src homology 2 domain of c-Abl by heteronuclear NMR spectroscopy in solution. / Overduin, Michael; Mayer, Bruce; Rios, Carlos B.; Baltimore, David; Cowburn, David.

In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 89, No. 24, 1992, p. 11673-11677.

Research output: Contribution to journalArticle

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AU - Cowburn, David

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