21. They are observed with glutamine or asparagine side chains within proteins and polypeptides. 22. Analysis of glutamine synthetase sequence has been suggested for phylogenetic analysis of the Actinobacteria. 23. In general, for this class of diseases, toxicity correlates with glutamine content. 24. Two amino acids, asparagine and glutamine , have a carboxamide group in them. 25. GS catalyzes the ATP-dependent condensation of glutamate with ammonia to yield glutamine . 26. ADP and P i do not dissociate until ammonia binds and glutamine is released. 27. Glutamine is converted to glutamic acid or pyroglutamic acid ( 5-oxoproline ).28. These six are arginine, cysteine, glycine, glutamine , proline and tyrosine. 29. The zinc ions are bridged by the carboxylate groups of aspartate and glutamine residues. 30. In kidneys, glutamine is deaminated twice to form glutamate and then ? Ketoglutarate.
