Synthetic human pancreatic polypeptide stimulated pancreatic somatostatin secretion by isolated rat islets and by the isolated perfused rat pancreas. In contrast, synthetic bovine pancreatic polypeptide and the C-terminal hexapeptide had no effect on somatostatin secretion. Synthetic human pancreatic polypeptide had only a mild stimulatory effect on glucagon secretion at the highest concentrati...

The 68,000, 145,000, and 200,000 dalton subunits of neurofilaments from rat spinal cord and brain stem were shown by chemical phosphate analysis to contain about 3, 9, and 22 mol of phosphate/mol of polypeptide, respectively. All three subunits contained phosphoserine while the 145,000 dalton polypeptide also contained phosphothreonine. The high phosphate content of the 200,000 dalton polypepti...

A novel polypeptide, velvet antler polypeptide (VAPPs), having a stimulary effect on proliferation of some cell was isolated from the velvet antler of sika deer (Cervus nippon Temminck). This polypeptide consists of a single chain of 32 amino-acid residues VLSAT DKTNV LAAWG KVGGN APAFG AEALE RM. VAPPs showed marked stimulary effect on rat epidermal cells and NIH3T3 cell line (dose range from 10...

The 9-kDa thylakoid polypeptide which in vivo carries the iron-sulfur centers A and B of photosystem I was isolated from barley (Hordeum vulgare L.) and the complete amino acid sequence determined. The polypeptide shows a very high degree of homology with the corresponding polypeptides in other plant species. The polypeptide is not post-translationally processed except for the removal of the N-...

The indole-J-glycerol phosphate synthetase of Escherichia coli was purified to apparent homogeneity and was crystallized. The enzyme is a single polypeptide chain of 45,000 molecular weight with 1 NHz-terminal methionine residue. The amino acid composition of the protein was determined. The rate of synthesis of this polypeptide chain in E. coli was found to be identical with the rate of synthes...

Myosin isolated from the pollen tubes of lily (Lilium longiflorum) is composed of a 170-kD heavy chain (E. Yokota and T. Shimmen [1994] Protoplasma 177: 153-162). Both the motile activity in vitro and the F-actin-stimulated ATPase activity of this myosin were inhibited by Ca2+ at concentrations higher than 10(-6) M. In the Ca2+ range between 10(-6) and 10(-5) M, inhibition of the motile activit...

The indole-J-glycerol phosphate synthetase of Escherichia coli was purified to apparent homogeneity and was crystallized. The enzyme is a single polypeptide chain of 45,000 molecular weight with 1 NHz-terminal methionine residue. The amino acid composition of the protein was determined. The rate of synthesis of this polypeptide chain in E. coli was found to be identical with the rate of synthes...

Experiments on the primary structure of a histidine-rich polypeptide isolated from the malarial parasite Plasmodium lophurae indicate that the smaller quantities of amino acids other than histidine form an integral part of the polypeptide and do not arise from a protein contaminating a histidine homopolymer. In culture, the parasites incorporate over 50% of exogenously supplied histidine into t...

Iron shows a pressure-induced martensitic phase transformation from the ground state ferromagnetic bcc phase to a nonmagnetic hcp phase at approximately 13 GPa. The exact transformation pressure (TP) and pathway are not known. Here we present a multiscale model containing a quantum-mechanics-based multiwell energy function accounting for the bcc and hcp phases of Fe and a construction of kinema...

Archaeological Dialogues / Volume 22 / Issue 02 / December 2015, pp 146 149 DOI: 10.1017/S1380203815000203, Published online: 02 November 2015 Link to this article: http://journals.cambridge.org/abstract_S1380203815000203 How to cite this article: Monica L. Smith (2015). Towns and cities. A commentary on ‘performing towns’. Archaeological Dialogues, 22, pp 146-149 doi:10.1017/S1380203815000203 ...