Now showing items 441-450 of 466
Structure of the dextran of Leuconostoc mesenteroides B-1355
(Elsevier, 1980-09-15)
The structure of dextran B-1355-S (soluble fraction) has been investigated. Acid hydrolysis of the methylated dextran yielded 2,3,4,6-tetra-, 2,3,4-tri-, 2,4,6-tri-, and 2,4-di-O-methyl--glucose, in the molar ratios of ...
An assay for the rates of cleavage of specific sites in DNA by restriction endonucleases: Its use to study the cleavage of phage [lambda] DNA by EcoRI and phage P22 DNA containing thymine or 5-bromouracil by HindIII
(Elsevier, 1983-03)
A method to measure the rates of cleavage of specific sites in DNAs by restriction endonucleases is described. Partial digests are prepared by incubating DNAs with limiting amounts of endonuclease. The termini generated ...
Measurement of nucleoside kinases in crude tissue extracts
(Elsevier, 1983-08)
The measurements of deoxyadenosine kinase, adenosine kinase, and deoxycytidine kinase were examined in human placental cytosol to achieve a valid and reliable assay linear with time and protein. Our studies confirm the ...
Radiometric assay for direct quantitation of rat liver cytochrome P-450b using monoclonal antibodies
(Elsevier, 1985-08-15)
A simple and sensitive assay has been developed that is capable of detecting as little as 0.2 ng of the major isozyme of cytochrome P-450 (P-450b) isolated from the livers of phenobarbital-induced rats. This assay employs ...
Cumene hydroperoxide-supported denitrification of 2-nitropropane in uninduced mouse liver microsomes
(Elsevier, 1986)
1. 1. Cumene hydroperoxide supported oxidative denitrification of 2-nitropropane was investigated in uninduced mouse liver microsomes.2. 2. The cytochrome P-450 peroxygenase catalyzed reaction resulted in the production ...
Vibrational analysis of crystalline diketopiperazine--I. Raman and i.r. spectra
(Elsevier, 1984)
Raman and i.r. spectra have been obtained of diketopiperazine and five of its isotopic derivatives: (CONDCH2)2, (CONHCD2)2, (CONDCD2)2, (13CONHCH2)2 and (13CONDCH2)2. In addition to solution spectra and powder spectra at ...
Somatostatin in human pancreatic and gastric juice
(Elsevier, 1981)
Considerable amounts of IRS are secreted after secretin injection in human pancreatic juice collected during endoscopic retrograde cholangiopancreatography. The mean IRS levels in the pancreatic juice of non-diabetic ...
Synthesis and rearrangements of ortho-selenonium phenoxides
(Elsevier, 1987)
A new class of selenonium zwitterions is prepared from the ortho- substitution of phenols with diphenylselenium bis(trifluoroacetate) 1. The zwitterions undergo a novel thermal rearrangement to produce diaryl ethers.
Bisantrene (NSC 337766) (CL 216,942) in advanced breast cancer
(Springer-Verlag, 1984-10)
Bisantrene (NSC 337766) is an anthracenedicarboxaldehyde hydrazone demonstrating a wide spectrum of activity in animal tumor model systems with no evidence of cardiotoxicity or alopecia, in contrast to doxorubicin. ...