Phocid Seal Leptin: Tertiary Structure and Hydrophobic Receptor Binding Site Preservation during Distinct Leptin Gene Evolution Hammond, John A. ; Hauton, Chris ; Bennett, Kimberley A. ; Hall, Ailsa J. Abstract Publication: PLoS ONE Pub Date: April 2012 DOI: 10.1371/journal.pone.0035395 Bibcode: 2012PLoSO...735395H