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. 2001 Oct;10(10):2114–2122. doi: 10.1110/ps.15801

Fig. 2.

Fig. 2.

500 MHz 1H-NMR COSY spectra of homologous kringle and FN2 domains: aromatic connectivities of conserved tryptophan residues. (A) The fourth kringle of human plasminogen (Pgn/K4). (B) The kringle of Ror-type receptor tyrosine kinase of C. elegans (CRor/K). (C) The kringle of rat neurotrypsin (NT/K). (D) The second FN2 domain of bovine seminal fluid protein PDC-109. C. elegans Ror kringle and rat neurotrypsin kringle resonances were ideied from 2D COSY, NOESY, and TOCSY experiments by reference to the human Pgn/K4 spectrum. The assignments of the human Pgn/K4 and PDC-109/b spectra have been reported (Atkinson and Williams 1990; Constantine et al. 1991, 1992. Spectra recorded at 300 K, on 1 mM protein samples dissolved in 2H2O, pH* 4.8.