Abstract

Heterozygous as well as homozygous containing hemoglobin S (HbS) red cells contain higher concentrations of methemoglobin than those not containing the mutant protein. Conditions have been developed for low temperature investigations of red cells that have been incubated 37x. Oxidized hemoglobin concentrations (S = 5/2 and g imid for S = 1/2) are related to catalase levels and correlated with hematocrit of samples under investigation. Comparisons are made with normal red cells. It was found that HbS-containing cells have higher concentrations of oxidized hemoglobin than normals.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR002583-13
Application #
6281735
Study Section
Project Start
1998-05-05
Project End
2000-04-30
Budget Start
1997-10-01
Budget End
1998-09-30
Support Year
13
Fiscal Year
1998
Total Cost
Indirect Cost

  Institution

Name
Albert Einstein College of Medicine
Department
Type
DUNS #
009095365
City
Bronx
State
NY
Country
United States
Zip Code
10461

  Publications

Colaneri, M J; Vitali, J; Peisach, J (2000) Electron spin-echo envelope modulation study of multicrystalline Cu(2+)-insulin: effects of Cd(2+) on the nuclear quadrupole interaction of the Cu(2+)-coordinated imidazole remote nitrogen. Biochemistry 39:584-91
Lee, H C; Goroncy, A K; Peisach, J et al. (2000) Demonstration of a conserved histidine and two water ligands at the Mn2+ site in Diocleinae lectins by pulsed EPR spectroscopy. Biochemistry 39:2340-6
Sam, J W; Takahashi, S; Lippai, I et al. (1998) Sequence-specific changes in the metal site of ferric bleomycin induced by the binding of DNA. J Biol Chem 273:16090-7
Magliozzo, R S; Marcinkeviciene, J A (1997) The role of Mn(II)-peroxidase activity of mycobacterial catalase-peroxidase in activation of the antibiotic isoniazid. J Biol Chem 272:8867-70
Nersissian, A M; Mehrabian, Z B; Nalbandyan, R M et al. (1996) Cloning, expression, and spectroscopic characterization of Cucumis sativus stellacyanin in its nonglycosylated form. Protein Sci 5:2184-92
Gasdaska, J R; Law, J H; Bender, C J et al. (1996) Cockroach transferrin closely resembles vertebrate transferrins in its metal ion-binding properties: a spectroscopic study. J Inorg Biochem 64:247-58
Tipton, P A; Quinn, T P; Peisach, J et al. (1996) Role of the divalent metal ion in the NAD:malic enzyme reaction: an ESEEM determination of the ground state conformation of malate in the E:Mn:malate complex. Protein Sci 5:1648-54
Coffino, A R; Peisach, J (1996) Simulation of Mn (II) EPR spectra using a full spin-Hamiltonian approach. J Magn Reson B 111:127-34
Parast, C V; Wong, K K; Lewisch, S A et al. (1995) Hydrogen exchange of the glycyl radical of pyruvate formate-lyase is catalyzed by cysteine 419. Biochemistry 34:2393-9
Theodorakis, J L; Garber, E A; McCracken, J et al. (1995) A chemical modification of cytochrome-c lysines leading to changes in heme iron ligation. Biochim Biophys Acta 1252:103-13

Showing the most recent 10 out of 41 publications