logo: Karen Magnus image: Hemocyanin

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Articles in Peer Reviewed Journals

Crowe, J.H. and Magnus, K.A. (1974) Studies on Acarine cuticles-II. Plastron respiration and levitation in a water mite. Comp. Biodchem. Physiol. 49A: 301-309.

Magnus, K.A. and Love, W.E. (1977) Crystals of a functional 70,000 molecular weight subunit of Hemocyanin from Limulus polyphemus. J. Mol. Biol. 116: 171-173.

Sack, J.S., Andrews, L.C., Magnus, K.A., Hanson, J.C., Rubin, J. and Love, W.E. (1978) Location of amino acid residues in human hemoglobin. Hemoglobin 2: 153-169.

Fearon, E.R., Love, W.E., Magnus, K.A., Lamy, J. and Lamy, J. (1982) Crystals of hemocyanin subunits 2 and 4 from the Tunisian scorpion, Androctonus australis. Life Chem. Reports, Suppl. 1: 64-68.

Magnus, K.A. and Love, W.E. (1982) Three dimensional structure of the Limulus II hemocyanin subunit at 5.5 A resolution. Life Chem. Reports, Suppl. 1: 61-64.

Magnus, K.A. and Lattman, E.E. (1983) Histones H3 and H4 are homologous to the lambda repressor and cro proteins in 22 residue segments implicated in DNA binding. Biochem. Internat. 7: 557-568.

Magnus, K.A., Lattman, E.E., Sato, M. and Pollard, T.D. (1986) Crystallization of Acanthamoeba profilin-I. J. Biol. Chem. 261: 13360-13361.

Magnus, K.A., Maciver, S.K. and Pollard, T.D. (1988) Crystallization of Actophorin, an Actin Filament-severing Protein from Acanthamoeba. J. Biol. Chem. 263: 18143-18144.

Magnus, K.A., Lattman, E.E., Volbeda, A. and Hol, W.G.J. (1991) Hexamers of Subunit II from Limulus Hemocyanin (a 48-mer) Have the Same Quaternary Structure As Whole Panulirus Hemocyanin Molecules Proteins 9: 240-247.

Hazes, B., Magnus, K.A., Bonaventura, C., Bonaventura, J., Dauter, Z., Kalk, K. and Hol, W.G.J. (1993) Crystal Structure of Deoxygenated Limulus polyphemus Subunit II Hemocyanin at 2.18 A Resolution: Clues for a Mechanism for Allosteric Regulation. Protein Science 2: 579- 619.

Magnus, K.A., Ton-That, H. and Carpenter, J.E. (1994) Recent Structural Work on the Oxygen Transport Protein Hemocyanin. Chem. Rev. 94: 727-735.

Magnus, K.A., Hazes, B., Ton- That, H., Bonaventura, C., Bonaventura, J. and Hol, W.G.J. (1994) Crystallographic Analysis of Oxygenated R Deoxygenated States of Arthropod Hemocyanin Shows Unusual Differences. Proteins 19: 302-309.

Fedorov, A.A., Magnus, K.A., Graupe, H., Lattman, E.E., Pollard, T.D. and Almo, S.C. (1994) X-ray Structures of the Actin Binding Protein Profilin that Differ in Their Affinity for Polyphosphoinositides. PNAS (USA) 91: 8638-8640.

Hazes, B., Magnus, K.A., Kalk, K., Bonaventura, C. and Hol, W.G.J. (1996) Nitrate Binding to Limulus polyphemus Subunit Type II Hemocyanin and its Functional Implications. J. Mol. Biol. 262: 532-542.

Challen, P.R., Peapus, D.H. and Magnus, K.A. (1997) A Niobium (V) Complex with Mixed O,S Donor Ligands. Synthesis, Structure and Properties of the Anion tris(2-mercapto-4- methylphenolato) niobate (V) Polyhedron 16(9): 1447-1451.

Liu, S., Fedorov, A.A., Pollard, T.D., Lattman, E.E., Almo, S.C. and Magnus, K.A. (1998) Crystal Packing Induces a Conformational Change in Profilin-I from Acanthamoeba castellanii. J. Struct. Biol. 123: 22-29.

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Review Article

Magnus, K.A., Ton-That, H. and Carpenter, J.E. (1994) Recent Structural Work on the Oxygen Transport Protein Hemocyanin. Chem. Rev. 94: 727-735.

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Protein Data Bank Depositions

"The Protein Data Bank (PDB) is an archive of experimentally determined three- dimensional structures of biological macromolecules, serving a global community of researchers, educators, and students."

The six entries below are the primary repositories of the nine protein structures of hemocyanin and profilin we have determined. References are available at http://www.rcsb.org/pdb/ using the PDB browser and the four-character code in the right margin. Each reference contains the type of protein, deposition data of the entry, its access code, the source of the protein and the authors of the entry.)

HEADER OXYGEN TRANSPORT 07-SEP-921LLA
COMPND HEMOCYANIN (SUBUNIT TYPE II)1LLA
SOURCE (LMULUS POLYPHEMUS) HEMOLYMPH1LLA
AUTH B. HAZES, K. A. MAGNUS, C. BONAVENTURA, J. BONAVENTURA,1LLA
AUTH 2 Z. DAUTER, K. H. KALK, W. G. J. HOL1LLA
 
HEADER ACTIN-BlNDING PROTEIN 29-JUL-94 1ACF1ACF
COMPND PROFILIN I1ACF
SOURCE (ACANTHAMOEBA CASTELLANII)1ACF
AUTHOR A. A. FEDOROV, K. A. MAGNUS, M. H. GRAUPE, E. E. LATTMAN, AUTHOR T. D. POLLARD, S. CALMO1ACF
 
HEADER ACTIN-BINDING PROTEIN 30-AUG-942ACG
COMPND PROFILIN II2ACG
SOURCE (ACANTHAMOEBA CASTELLANII)2ACG
AUTHOR A. A. FEDOROV, K. A. MAGNUS, M. H. GRAUPE, E. E. LATTMAN,2ACG
AUTHOR 2 T.D.POLLARD, S. C. ALMO2ACG
 
HEADER OXYGEN TRANSPORT 06-JAN-951OXY
COMPND HEMOCYANIN SUBUNIT II COMPLEXED WITH OXYGEN1OXY
SOURCE HORSESHOE CRAB (LIMULUS POLYPHEMUS) HEMOLYMPH1OXY
AUTHOR H. TON-THAT, K. MAGNUS
JRNL AUTH K. A. MAGNUS, B. HAZES, H. TON- THAT, C. BONAVENTURA, 1OXY
 
HEADER OXYGEN TRANSPORT 17-OCT-951NOL
TITLE OXYGENATED HEMOCYANIN (SUBUNIT TYPE II)1NOL
SOURCE 2 ORGANISM SCIENTIFIC: LIMULUS POLYPHEMUS;1NOL
SOURCE 3 ORGANISM COMMON: HORSESHOE CRAB;1NOL
AUTH B. HAZES, K. A. MAGNUS, C. BONAVENTURA,1NOL
AUTH2 J. BONAVENTURA, Z. DAUTER, K. H. KALK, W. G. J. HOL 1NOL
 

Data for the four bis(-hydroxo) met, bis-fluoro) met, nitrosyl half-met and azido met hemocyanin crystal structures.

 
HEADER OXYGEN TRANSPORT 17-MAR-971LL1
TITLE HYDROXO BRIDGE MET FORM HEMOCYANIN FROM LIMULUS1LL1
SOURCE 2 ORGAMSM SCIENTIFIC: LIMULUS POLYPHE5MS;1LL1
SOURCE 4 OTHER DETAILS: FROM HEMOLYMPH1LL1
EXPDTA X-RAY DIFFRACTION1LL1
AUTHOR S.L1U, K.MAGNUS 1LL1

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Book Chapters

Magnus, K.A. (2001) Hemocyanins from Arthropods and Molluscs In "Handbook of Metalloproteins", A. Messerschmidt, R. Huber, T. Poulos and K. Wiegherdt, Eds., John Wiley R Sons, Ltd., Chinchester.

Magnus, K.A., Ton-That, H. and Carpenter, J.E. (1993) Three-dimensional Structure of the Oxygenated Form of the Hemocyanin Subunit II of Limulus polyphemus at Atomic Resolution. In: "Bioinorganic Chemistry of Copper", K.D. Karlin and Z. Tyekla, Eds. Chapman and Hall, New York. Pp. 143-150.

Magnus, K.A. and Love, W.E. (1977) Crystals of Limulus hemocyanin and its subunits. In: "Structure and Function of Haemocyanin". g.V. Bannister, ed.), Springer Verlag, Berlin, pp. 71-76.

Magnus, K.A. and Love, W.E. (1981) Crystals of a 70,000 Dalton subunit of Limulus polyphemus hemocyanin. In: "Invertebrate Oxygen-Binding Proteins: Structure, Active Site and Function", g. Lamy and J. Lamy, eds.), Marcel Dekker, New York and Basel, pp. 363-366.

Pollard, T.D., Magnus, K.A., Doberstein, S., Goldschmidt-Clermont, P., Kaiser, D.A., Machesky, L., Maciver, S., Rirzun, D.L. and Wachsstock, D. (1989) Structure-Function Studies of the Actin Filament System of Acanthamoeba. In: "Springer Series in Biophysics", U. Aebi and J. Engel, Eds. "Cytoskeletal and Extracellular Proteins" vol. 3. 2nd Intern. Symp. European Biophysics Society, Gwatt, Switzerland, Springer Co., London. pp. 271-279.

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In Preparation

Liu, S. and Magnus, K.A. Preliminary Crystallographic Studies of Limulus polyphemus Hemocyanin Subunits IIIa, IIIb and IV.

Ton-That, H., Liu, S., Hazes, B., Sweet, R.M. and Magnus, K.A. Limulus Hemocyanin Subunit II in Oxygenated and Oxidized Forms. (A discussion of the ramifications for active site chemistry developed from the four met (oxidized) hemocyanin structures.)

Liu, S. and Magnus, K.A. A General Mechanism for Arthropod Hemocyanin's Cooperative Ligand Binding and Its Regulation from the Structure of Limulus IV Hemocyanin Subunits.

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