>1y4r_D mol:protein length:146  Hemoglobin beta chain
MHLTPEEKSAVTALWGKVNVDEVGGEALGRLLVVYPWTQRFFESAGDLSTPDAVMGNPK
VKAHGKKVLGAFSDGLAHLDNLKGTFATLSELHCDKLHVDPENFRLLGNVLVCVLAHHF
GKEFTPPVQAAYQKVVAGVANALAHKYH