The structure of Ascaris hemoglobin domain I at 2.2 A resolution: molecular features of oxygen avidity.
Yang, J., Kloek, A.P., Goldberg, D.E., Mathews, F.S.(1995) Proc Natl Acad Sci U S A 92: 4224-4228
- PubMed: 7753786 
- DOI: 10.1073/pnas.92.10.4224
- Primary Citation of Related Structures:  
1ASH - PubMed Abstract: 
The perienteric hemoglobin of the parasitic nematode Ascaris has an exceptionally high affinity for oxygen. It is an octameric protein containing two similar heme-binding domains per subunit, but recombinant constructs expressing a single, monomeric heme-binding domain (domain 1; D1) retain full oxygen avidity ...