Investigations of the molecular basis for the temperature-dependent insolubility of cryoglobulins. II. Spectroscopic studies of the IgM monoclonal cryoglobulin McE

Biochemistry ◽  
1977 ◽  
Vol 16 (13) ◽  
pp. 2986-2994 ◽  
Author(s):  
C. R. Middaugh ◽  
G. J. Thomas ◽  
B. Prescott ◽  
M. E. Aberlin ◽  
G. W. Litman
Keyword(s):  
Molecular Basis ◽  
Spectroscopic Studies ◽  
Temperature Dependent

scholarly journals Investigating the molecular basis of temperature‐dependent sex determination in the painted turtle

2010 ◽  
Vol 24 (S1) ◽  
Author(s):  
Katherine Lynn O'Shaughnessy ◽  
Nicole Valenzuela ◽  
Jennifer Neuwald ◽  
Robert Literman ◽  
Amanda Harris ◽  
...  
Keyword(s):  
Sex Determination ◽  
Molecular Basis ◽  
Painted Turtle ◽  
Temperature Dependent

Molecular Basis for a Simple, Specific Test for S Hemoglobin: the Murayama Test

1970 ◽  
Vol 16 (11) ◽  
pp. 945-950 ◽  
Author(s):  
Robert M Nalbandian ◽  
Raymond L Henry ◽  
Bruce M Nichols ◽  
Frank R Camp ◽  
Paul L Wolf
Keyword(s):  
Molecular Basis ◽  
Close Agreement ◽  
Negative Temperature Coefficient ◽  
Sol Gel ◽  
Negative Temperature ◽  
Globin Chain ◽  
Temperature Dependent ◽  
Diagnostic Laboratory ◽  
Specific Test ◽  
Hemoglobin C

Abstract The Murayama test, a new, specific test for S hemoglobin, is based on the molecular mechanism of sickling for S hemoglobin proposed by Murayama [Clin. Chem. 14, 578 (1967)]. The test depends on a feature of molecular structure: hydrophobic bonds formed between interacting tetramers by the no. 6 valine, which is substituted for glutamic acid near the N-terminal end of each β S globin chain. Existence of these particular hydrophobic bonds is manifested in deoxygenated, concentrated hemolysates by reversible sol— gel transformations at 0° and 37°C. In such systems, demonstration of reversible, temperature-dependent sol—gel transformations (a negative temperature coefficient of gelation) is specific for S hemoglobin or the S structural variant, hemoglobin C (Harlem). The test is simple, has clear endpoints, will detect both homozygous and heterozygous S hemoglobin, and is specific. A practical approach is suggested to the precise identification of S and non-S sickling hemoglobins in the diagnostic laboratory. The close agreement between Murayama’s hypothesis for sickling in S hemoglobin and our results with 29 cases of S hemoglobin and 37 controls further support his views.

SPECTROSCOPIC STUDIES OF ALCOHOLS: III. FUNDAMENTAL OH STRETCHING BANDS OF 2,2-DI- AND 2,2,2-TRI-HALOETHANOLS

1964 ◽  
Vol 42 (2) ◽  
pp. 340-346 ◽  
Author(s):  
P. J. Krueger ◽  
H. D. Mettee
Keyword(s):  
Spectroscopic Studies ◽  
Kcal Mole ◽  
Temperature Dependent ◽  
Hydrogen Bond Interaction ◽  
Constrained System ◽  
Trans Conformer ◽  
Bond Polarizability ◽  
Inductive Effects ◽  
Geometrically Constrained ◽  
Bond Polarization

The OH stretching region was examined for the compounds F3CCH2OH, Cl2CHCH2OH, Cl3CCH2OH, and Br3CCH2OH in dilute CCl4 solution. The first two compounds exhibit temperature-dependent band asymmetry which is due to trans–gauche equilibria arising from rotation about the C—O bond, with relatively small populations in the trans forms. Enthalpy differences of 3.3 and 2.4 kcal/mole between the conformers were obtained for these two compounds respectively. Although symmetrical at lower temperatures, the band for Cl3CCH2OH shows the presence of a small amount of the trans conformer at temperatures above 45 °C. These results are discussed in terms of intramolecular OH … X hydrogen bond interaction, inductive effects, non-bonded interactions, O—H bond polarization, C—X bond polarizability, and the size of the halogen atoms in a geometrically constrained system.

STRUCTURAL, DIELECTRIC AND TEMPERATURE DEPENDENT RAMAN SPECTROSCOPIC STUDIES ON SWIFT HEAVY ION IRRADIATED TGS CRYSTALS

2011 ◽  
Author(s):  
P. K. Bajpai ◽  
Deepak Shah ◽  
Ravi Kumar ◽  
Ashok Kumar ◽  
R. S. Katiyar ◽  
...  
Keyword(s):  
Heavy Ion ◽  
Spectroscopic Studies ◽  
Temperature Dependent ◽  
Raman Spectroscopic ◽  
Swift Heavy Ion

scholarly journals X-ray Absorption Spectroscopic studies of Single Crystal SrFeO3-δ

2014 ◽  
Vol 70 (a1) ◽  
pp. C1527-C1527
Author(s):  
Shang Hsien Hsieh ◽  
Mukta Vinayak Limaye ◽  
Shashi Bhushan Singh ◽  
Yu Cheng Shao ◽  
Yu Fu Wang ◽  
...  
Keyword(s):  
Transition Temperature ◽  
Single Crystal ◽  
Thermal Hysteresis ◽  
Spectroscopic Studies ◽  
Temperature Dependent ◽  
Zone Method ◽  
Edge Structure ◽  
X Ray ◽  
Length Changes ◽  
X Ray Absorption

We have prepared a high quality single crystal of SrFeO3-δ (δ ~ 0.14) by the floating-zone method to study the electronic and atomic structures using temperature-dependent x-ray absorption near-edge structure (XANES), x-ray linear dichroism (XLD), and extended x-ray absorption fine structure (EXAFS) at the O K-edge, Fe L3,2- and K-edge. Resistivity measurements indicate that the SrFeO2.86 shows an anisotropic behavior, and thermal hysteresis behavior between 70 K and 40 K. The temperature dependent Fe K-edge EXAFS studies shows that the Fe-O bond length changes in ab-plane below transition temperature. The XLD results illustrate that as temperature is reduced from room temperature to below the transition temperature, the preferential occupancy of Fe majority-spin eg orbitals changes from the 3d3z2-r2 to 3dx2-y2, but restore to 3dx2-y2 after thermal hysteresis. Experimental findings suggest that the charge transfer during thermal hysteresis is induced by lattice distortions of the FeO6 octahedra in SrFeO2.86.

Molecular basis for the temperature-dependent insolubility of cryoglobulins—IX

1980 ◽  
Vol 17 (3) ◽  
pp. 337-344 ◽  
Author(s):  
G.W. Litman ◽  
B. Gerber-Jenson ◽  
R. Litman ◽  
C.R. Middaugh ◽  
C. Scheffel
Keyword(s):  
Molecular Basis ◽  
Temperature Dependent

scholarly journals Spectroscopic studies on the temperature-dependent molecular arrangements in hybrid chitosan/1,3-β-D-glucan polymeric matrices

2020 ◽  
Vol 159 ◽  
pp. 911-921 ◽  
Author(s):  
Barbara Gieroba ◽  
Anna Sroka-Bartnicka ◽  
Paulina Kazimierczak ◽  
Grzegorz Kalisz ◽  
Agnieszka Lewalska-Graczyk ◽  
...  
Keyword(s):  
Spectroscopic Studies ◽  
Temperature Dependent ◽  
Polymeric Matrices
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