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AMINO ACID SEQUENCE OF A GLOBIN FROM THE SEA CUCUMBER CAUDINA (MOLPADIA) ARENICOLAAMINO ACID SEQUENCE OF A GLOBIN FROM THE SEA CUCUMBER CAUDINA (MOLPADIA) ARENICOLA
Structural highlights
FunctionEvolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedCoelomic cells from the sea cucumber Caudina (Molpadia) arenicola contain four major globins, A, B, C and D. The hemoglobins from this organism show unusual ligand-linked dissociation properties. The complete amino acid sequence of the D globin has been established. It is N-acetylated, consists of 158 residues and has a 10 amino acid N-terminal extension similar to that found in some other invertebrate globins. The C. arenicola D globin has an equal sequence identity (28%) with both alpha and beta human globins and as anticipated, is more closely related to these vertebrate proteins than are molluscan globins. The C. arenicola D globin shows a 59% identity with the globin I from the sea cucumber Paracaudina chilensis. The availability of the C. arenicola D globin sequence will aid the X-ray analysis of this protein and facilitate an understanding of the changes in subunit interactions that occur with cooperative ligand binding. Amino acid sequence of a globin from the sea cucumber Caudina (Molpadia) arenicola.,Mauri F, Omnaas J, Davidson L, Whitfill C, Kitto GB Biochim Biophys Acta. 1991 May 30;1078(1):63-7. PMID:2049384[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
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