ATP sulfurylase, from Escherichia coli K-12, conformationally couples the rates and chemical potentials of the two reactions that it catalyzes, GTP hydrolysis and activated sulfate synthesis. The enzyme is rare among such coupling systems in that it links the potentials of small-molecule chemistries ...
(1995) The anatomy of a bifunctional enzyme: Structural basis for reduction of oxygen to water and synthesis of nitric oxide by cytochrome cd1, Cell 81, 369-377.Fu¨ lo¨ p, V., Moir, J. W. B., Ferguson, S. J. and Hajdu, J. (1995) The anatomy of a bifunctional enzyme: ...
The process of spermatogenesis begins with mitosis of the diploid spermatogonia. Because these cells are diploid (2n), they each have a complete copy of the father’s genetic material, or 46 chromosomes. However, mature gametes are haploid (1n), containing 23 chromosomes—meaning that...
laterally by the cheek mucosa, inferiorly by the floor of the mouth, posteriorly by the oropharynx, and superiorly by the hard and soft palate. In addition to being a site for mastication and propulsion of bolus, enzyme release and salivation concurrently occur...
The general framework adopted in this chapter is based on the assumption that frontal lobe functions are conditional on the development of an intricate set of connections (Fuster, 2008; Passingham and Wise, 2012) that guarantee access to sensory information, memories, and internal states for the ...
Objective To discuss the safety and clinical value of lateral-rectus approach in the treatment of acetabular fractures. Methods 5 fresh adult cadaveric specimens (3 males,2 females) were used. For each cadaver, an dissection was conducted on the right side of the abdominal wall to be acquainted...
Zinc. The trace mineral zinc functions as a co-enzyme that facilitates the synthesis of the heme portion of hemoglobin. B vitamins. The B vitamins folate and vitamin B12function as co-enzymes that facilitate DNA synthesis. Thus, both are critical for the synthesis of new cells, including eryth...
3.a structure or marking having the appearance of an eye, such as the bud on a twig or potato tuber or a spot on a butterfly wing 4.a small area of low pressure and calm in the centre of a tornado or cyclone 5.Seephotocell ...
The cervix also performs an important function in maintaining the sterility of the reproductive tract. The thick layers of mucus produced by glandular cells protect the uterus and upper parts of the reproductive system from harmful bacteria. Lysozyme, a specific enzyme that is present in cervical mu...
It is important to steer clear of rapid, jerky motions of the trunk. When carrying big things, exercise extreme caution. For instance, you can lift with your legs or ask someone for assistance. Always be sure to keep your form correct while you're lifting weights, playing sports, or doing...