The MAT-B1 and MAT-C1 ascites sublines of the 13762 rat mammary adenocarcinoma differ in morphology, agglutinability with concanavalin A, and xenotransplantability. Both cell lines contain a major mucin-type glycoprotein, but the MAT-C1 (xenotransplantable) subline contains a 3-fold-greater content of sialic acid on the glycoprotein than does the MAT-B1 (nonxenotransplantable) subline. The pres...

The interaction of the perimidone drug in solution state with the σ-acceptor iodine, the aliphatic π-acceptor tetracyanoethylene (TCNE) and the aromatic π-acceptor 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) have been studied through the initial formation of ionic intermediate to charge transfer (CT) complex in methanol at room temperature. The spectral studies of the complexes were determi...

A principal aim of this study was to explain our earlier finding of a lack of d-alanine in the glycerol teichoic acid from the membrane of a stabilized L-form of Streptococcus pyogenes (B. M. Slabyj and C. Panos, 1973. J. Bacteriol. 114:934-942). It was found that the incorporation of d-alanine into the membrane teichoic acid of S. pyogenes requires either supernatant fraction or two enzymes fr...

Elucidation of the nucleotide sequence of amino acid acceptor ribonucleic acid may reveal the structural basis of its amino acid specificity. The task appears feasible in the near future because of the low molecular weight attributed to S-RNA’ and because of the purity of the S-RNA preparations achieved so far. Ingram and Pierce (l), McCully and Cantoni (2), and Bell, Tomlinson, and Tener (3) h...

Dictyostelium myosin II heavy chain kinase A (MHCK A), MHCK B, and MHCK C contain a novel type of protein kinase catalytic domain that displays no sequence identity to the catalytic domain present in conventional serine, threonine, and/or tyrosine protein kinases. Several proteins, including myelin basic protein, myosin regulatory light chain, caldesmon, and casein were phosphorylated by the ba...

Two calcium coordination compounds [Ca(2,6-Hpdc)2(H2O)2] 1 and [Ca2(2,3-pdc)2(H2O)6]n 2 (where 2,6-H2pdc = 2,6-pyridinedicarboxylic acid 2,3-H2pdc 2,3-pyridinedicarboxylic acid) were grown at room temperature. The characterized using elemental analysis, Fourier transform infrared (FTIR) spectroscopy, thermogravimetric powder X-ray diffraction single crystal crystallographic analysis. structures...