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This structure represents the lowest energy solution based on 2406 SH2 intramolecular restraints, 1628 SH3 intramolecular restraints, 37 SH2-SH3 intermolecular restraints, 64 SH2-phosphopeptide intermolecular restraints, 50 hydrogen bonds, 54 direct 3J-HNHA couplings and 166 dihedral angle restraints from TALOS
Residues 217-220 and 225-229 of the Crk phosphopeptide (Chain B) are disordered. As intermolecular contacts between the SH2 domain (Chain A) and the SH3 domain (Chain C) limited to amino acids 67-75 in DE-loop of the SH2 domain, there is no unique orientation between the SH2 domain and SH3 domain.
NMRPipe
NMR Ensemble Information
Conformer Selection Criteria
structures with the lowest energy
Conformers Calculated Total Number
40
Conformers Submitted Total Number
1
Representative Model
1 (lowest energy)
Additional NMR Experimental Information
Details
Intermolecular distance restraints were obtained from reverse half-filtered 2D- and 3D-NOESY spectra (300 ms mixing time) on sample in 99% D2O. Methyl prochiral assignments were made on a 10% 13C-labeled sample according to Neri et al (Biochemistry 28:7510; 1989). HACAN and CBCA(CO)N(CA)HA experiments were used to assign the proline residues in the Crk SH2 domain according to Kanelis et al (JBNMR 16:253; 2000)