Citrate transport in Bacillus subtilis is dependent on the presence of Mgz+. Other divalent cations like MnZ+, Co2+, or Ni2+ can replace magnesium ions. 2*Mg2+ or j4Mn2+ are taken up by the cells simultaneously with the uptake of citrate. Cells which are not induced for citrate transport do not show the citrate-dependent uptake of either 64Mn2+ or 2sMg2+. Citrate transport and the citrate-depen...

Citrate is a major component of bone in all vertebrates, but its implications in bone have remained largely unknown. Recent studies identified that citrate is incorporated into the structure of the hydroxyapatite nanocrystal/collagen complex; and is essential for the important biomechanical properties of bone. This raises the important question, "What is the source of citrate for incorporation ...

In Leuconostoc mesenteroides subsp. mesenteroides 19D, citrate is transported by a secondary citrate carrier (CitP). Previous studies of the kinetics and mechanism of CitP performed in membrane vesicles of L. mesenteroides showed that CitP catalyzes divalent citrate HCit2-/H+ symport, indicative of metabolic energy generation by citrate metabolism via a secondary mechanism (C. Marty-Teysset, J....

EDITSHAL and usually, as in the present case, constructional apraxia will be detected with or without ideational apraxia, alexia, or sensory agnosia. Interpretation of Gerstmann's syndrome as an easily demonstrated and memorable pointer to diffuse cerebral damage accords well with this case, where there is no reason to suspect a highly focal lesion. Gerstmann's syndrome does not seem to have be...

Mixed ligand transition metal complexes having general formula ML 2 .HL', where M = Cu(II) or Pd(II); L = deprotonated 1-nitroso-2-naphthol or 8-hydroxyquinoline; HL' = picolinic acid or quinaldinic acid have been synthesised and characterised on the basis of Infrared, electronic absorption spectral data, magnetic and conductance measurements. The above study reveals the octahedral geometry of ...

It was shown that 5-chloro-8-hydroxyquinoline, an antituberculosis agent, gels aqueous alcohol solutions efficiently. Thermal stability and gel-to-sol transition temperature of 1% gel in CD₃OD/D₂O (2:1) was studied by ¹H-NMR. Fibrous structures of four xerogels have been characterized by scanning electron microscope.