1327 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

We present the results of two Beppo-SAX observations of the poor clusters SC 1327–312 and SC 1329– 313 : these objects are located in a huge structure, formed by three ACO clusters, which is probably the remnant of one of the largest and best studied major mergings known. Given the fact that these poor clusters are in between two interacting ACO clusters, the aim of this work is to study the ph...

The tyrosine kinase activity of insulin receptor isolated from the skeletal muscle of NIDDM patients has previously been found to be decreased compared with the activity of receptor from nondiabetic subjects but the mechanism underlying this defect is unknown. Phosphorylation of receptor serine/threonine residues has been proposed to exert an inhibitory influence on receptor tyrosine kinase act...

Carbamoyl-phosphate synthase I (pig liver) is modified at the cysteine residues 1327 and 1337 (numbered according to the rat sequence) in the presence of 5 mM-N-acetyl-L-glutamate with enhanced rate. ATP/Mg2+ (greater than or equal to 5 mM) protects against alkylation of these two cysteines and loss of activity. According to the results obtained by limited proteolysis of monobromobimane-modifie...

From a newly obtained VLT/UVES spectrum we have determined the oxygen abundance of HE 1327−2326, the most iron-poor star known to date. UVOH lines yield a 1D LTE abundance of [O/Fe]OH = 3.7 (subgiant case) and [O/Fe]OH = 3.4 (dwarf case). Using a correction of −1.0 dex to account for 3D effects on OH line formation, the abundances are lowered to [O/Fe] = 2.8 and [O/Fe] = 2.5, respectively, whic...

The development of polymerase chain reaction (PCR) DNA amplification methods has afforded molecular studies of fixed paraffin-embedded tissue samples and other archival material. Some fixation methods damage DNA, and thus deleteriously affect subsequent PCR analysis. This study addressed the effect of short- and long-term storage (2 hr to 30 days) in a variety of fixatives (10% buffered-neutral...