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Malate dehydrogenase from thermophilic and mesophilic bacteria. Molecular size, subunit structure, amino acid composition, immunochemical homology, and catalytic activity.
The diversity among the bacterial malate dehydrogenases, manifested not only in molecular size and subunit structure but also in properties such as catalytic activity and the dependence of this activity on electrolytes, organic solvents, and denaturants, indicates significant structural differences between several of these cognate enzyme species. Expand
A study of yaws among pygmies in Cameroon and Zaire.
The results of VDRL and FTA-ABS tests provide evidence of a very high incidence of treponemal disease, 80 to 90 percent of the population showing serological evidence of infection. Expand
Studies on the Treponemal Immobilization Test*
  • A. Wilkinson
  • Medicine
  • The British journal of venereal diseases
  • 1 September 1954
The reports by Nelson (1948), and Nelson and Mayer (1949) of a relatively simple technique by which a treponemal immobilizing antibody, clearly distinct from reagin, could be demonstrated in syphilitic sera aroused great interest. Expand
Isolation and characterization of isocitrate lyase from a thermophilic Bacillus sp.
The thermophile enzyme is distinctive from its mesophilic coutnerparts in possessing a lower catalytic-centre activity, greater resistance to chemical and thermal denaturation and fewer thiol groups and in being strongly activated by salts. Expand
Purification and properties of an extracellular glucoamylase from a diastatic strain of Saccharomyces cerevisiae.
Kinetic data for the yeast enzyme and a variety of substrates is presented; the enzyme is particularly ineffective in cleaving alpha-(1----6)-glycosidic bonds. Expand
IgM-FTA test in syphilis in adults. Its relation to clinical findings.
IgM-FTA tests have been carried out on 209 sera from patients with treated or untreated syphilis at various stages and on 128 patients, born in areas where yaws is or was prevalent, withtreated or untreated latent treponemal disease, and may assist in differentiating untreated early latent from late latent syphilis. Expand
Dissociation of bovine and bacterial catalases by sodium n‐dodecyl sulfate
Comparison of the amino acid analysis of the two catalases shows that bacterial catalase has a smaller number of lysyl residues and a larger number of glutamyl residues than beef liverCatalase, which could lead to a reduced affinity of bacterial catAlase for the binding of SDS. Expand
A comparative study of proton and alkaline earth metal binding by humic substances.
Humic substances (HS) were extracted from the soil and water of an upland catchment and characterised with respect to molecular weight, C, H, O, N and S contents and ash content. Three samples wereExpand
Determination of molecular weights of humic substances by analytical (UV scanning) ultracentrifugation
Abstract Samples of peat humic acid (PHA) and surface water humic (WBHA) and fulvic (WBFA) acids have been extracted from Whitray Beck in North Yorkshire, U.K. The molecular weights of the extractsExpand
Treponematoses in Gambia, West Africa.
It is suggested that the term “endemic syphilis” is a misnomer and should be abolished; and that, with the exception of the Bosnian form of the disease, all the non-venereal treponematoses, including yaws, should be classed together. Expand