Structural homologies of cobalamin-binding proteins. Tryptic peptide mapping of intrinsic factor, transcobalamin and haptocorrin from man, hog and rabbit.

@article{Nex1982StructuralHO,
  title={Structural homologies of cobalamin-binding proteins. Tryptic peptide mapping of intrinsic factor, transcobalamin and haptocorrin from man, hog and rabbit.},
  author={Bj\orn A Nex\o and Ebba Nex\o},
  journal={Biochimica et biophysica acta},
  year={1982},
  volume={708 2},
  pages={178-84}
}
We have explored the structural features of cobalamin binding proteins by peptide mapping. The present report is a comparison of the radioiodinated tryptic peptides of intrinsic factor, transcobalamin and haptocorrin from man, hog and rabbit. The results show that the homology between analogous proteins from different species is close for intrinsic factor and transcobalamin and weaker for haptocorrin. The results also suggest the existence of one or more regions which, with minor changes, are… CONTINUE READING

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