Words similar to bis
Example sentences for: bis
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After evaporation of reagents, the residue was subjected to TLC plates, using the solvent system chloroform/ethanol (93:7, vol/vol) for PGF 2α and TXB 2 , and ethyl acetate/methanol (93:2, vol/vol) for 6-keto-PGF 1α and PGE 2 . Then PGF 2α was converted to trimethylsilyl ether derivative by treatment with N,O-bis (trimethylsilyl) trifluoroacetamide and dimethylformamide.
MgSO 4 , (ethylene-bis [oxyethylenenitrilo])tetraacetic acid (EGTA), GTP (type II-S), glycerol, 2-( N -morpholino)-ethane sulfonic acid (MES), Nonidet P 40, piperazine- N,N '-bis(2-ethanesulfonic acid) (PIPES) and Triton X-100 were purchased from Sigma Chemical Company.
BCIP = 5-bromo-4-chloroindol-3-yl phosphate; cDNA = complementary DNA; EGTA = (ethylene-bis [oxyethylenenitrilo])tetraacetic acid; CHTN = Cooperative Human Tissue Network; ELISA = enzyme-linked immunosorbent assay; MAP = microtubule associated protein; MES = 2-( N -morpholino)-ethane sulfonic acid; NBT = nitro blue tetrazolium; PBS = phosphate-buffered saline; PC-tubulin = MAP-free phosphocellulose-purified tubulin; PCR = polymerase chain reaction; PIPES = piperazine- N,N '-bis(2-ethanesulfonic acid); PVDF = poly(vinylidene difluoride).
2Bis indicated by the arrow in the trace of integrated fluorescence at +30 mV.
Pyridine-2,6-bis(thiocarboxylic acid) (pdtc) is an iron-regulated metabolite produced by certain pseudomonads that is highly reactive towards metals by virtue of a pair of thiocarboxylate groups and ring nitrogen that combine to form a non-specific, high affinity, tri-dentate ligand (Figure 1) [ 1 2 ] . The formation constants for Co, Cu, and Fe complexes of pdtc were determined to be greater than 10 33 [ 3 ] . Uptake studies using 59Fe showed that addition of pdtc to the growth medium of two different pdtc-producing pseudomonads increased the efficiency of iron uptake by 20% [ 1 ] . The contribution of pdtc to iron uptake may be due to the fact that the copper complex of pdtc (Cu:pdtc) has the ability to reduce both soluble and mineral forms of ferric iron) [ 1 ] . Not surprisingly, in light of its high affinity for essential metals, pdtc also exhibits antimicrobial activity [ 4 ] .
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