Aminolevulinic acid (ALA) is formed by the enzyme ALA synthase (hemA gene). Then ALA is converted to Porphobilinogen (PBG) by the ALA dehydratase (hemB gene). For the overproduction of ALA, we used an Escherichia coli BL21(DE3) containing a hemA gene from Bradyrhzobium japonicum, which was created in our previous work. The effects of pH on the ALA synthase and ALA dehydratase were investigated....

2 Ser Asn Asn Asn 14 Leu Ile Leu Leu 22 Ser Ser Leu Leu 31 Val Asp Val Val 67 Thr Ala Thr Ala 116 Val Ile Ile Ile 183 Ala Ala Glu Glu 210 Ala Ser Ser Ser 233 Val Ala Ala Ala 262 Thr Ile Thr Thr 277 Gln Gln Arg Gln 294 Thr Val Val Val 296 Pro Ser Ser Ser 305 Ala Ser Ser Ser 314 Ile Val Val Val 317 Glu Lys Lys Lys 378 Ile Leu Leu Leu 415 Leu Val Val Val 417 Asp Gly Gly Gly 421 Val Ala Ala Ala 432...

The conformational behaviour of delta Ala has been investigated by quantum mechanical method PCILO in the model dipeptide Ac-delta Ala-NHMe and in the model tripeptides Ac-X-delta Ala-NHMe with X = Gly, Ala, Val, Leu, Abu and Phe and is found to be quite different. The computational results suggest that in the model tripeptides the most stable conformation corresponds to phi 1 = -30 degrees, ps...

This paper outlines the growth of interest in UK social and health impacts arts from late 1990s onwards. It highlights early critiques claims made about such by Belfiore Mirza (Mirza, 2006a). Attention is given to two recent commissioned reviews research, World Health Organization (WHO) Europe, Department for Digital, Culture, Media Sport (DCMS), which conclude that can have an important role p...