نتایج جستجو برای: amino acid composition
تعداد نتایج: 1042206 فیلتر نتایج به سال:
We report the amino acid composition of two polypeptides, p788 and p789. These polypeptides are reliable markers for neoplastic transformation in human fibroblasts. Their compositions are unusually rich in cysteine and serine. Because the recently reported amino acid sequence of mouse epidermal growth factor precursor (prepro-EGF) is also rich in those two amino acids and because the role of p7...
BACKGROUND Numerous studies have evaluated protein and amino acid levels in human milk. However, research in this area has been limited by small sample sizes and study populations with little ethnic or racial diversity. OBJECTIVE Evaluate the protein and amino acid composition of mature (≥30 days) human milk samples collected from a large, multinational study using highly standardized methods...
Base composition, codon usages and amino acid usages have been analyzed by taking 529 orthologous sequences of Aquifex aeolicus and Bacillus subtilis, having different optimal growth temperatures. These two bacteria do not have significant difference in overall GC composition, but GC(1+2) and GC3 levels were found to vary significantly. Significant increments in purine content and GC3 compositi...
We present here a computational method based on the analysis of amino acid composition for performing comparisons between proteins. This user-friendly and reliable test is aimed at rapidly identifying, from data-base subsets, sequences--if necessary, partial sequences--which share similar amino acid compositions to the input composition (deduced from experimental results). Apparent molecular we...
NMR spectroscopy of Cu(II) complexes with acrylamide and sodium acrylate copolymer and ω-amino acids
Macromolecular complexes of acrylamide and sodium acrylate copolymer with microelements, including Cu(II), may form at preparation crop protection stimulation compositions, where the serves as an adhesive, water-retaining film-forming agent. Preparations for production also contain amino acids that protect plants under stressful conditions (cold, dry, etc.). Carboxylic groups copolymer, carboxy...
An intestinal perfusion technique has been used in normal human subjects to investigate the influence that starter protein composition and hydrolysis procedure have on absorption of amino acid residues from partial enzymic hydrolysates of whole protein. Five starter proteins were studied. Three (egg albumin, casein/soy/lactalbumin, and lactalbumin) were hydrolysed by papain, a second lactalbumi...
An intestinal perfusion technique has been used in normal human subjects to investigate the influence that starter protein composition and hydrolysis procedure have on absorption of amino acid residues from partial enzymic hydrolysates of whole protein. Five starter proteins were studied. Three (egg albumin, casein/soy/lactalbumin, and lactalbumin) were hydrolysed by papain, a second lactalbumi...
The expected behaviour of the “difference index” (Metzger, Shapiro, Mosimann & Vinton, 1968) has been examined under simple assumptions. Provided that it is only used to compare the compositions of proteins of equal or near-equal length, it can be interpreted to provide an estimate of the number of differences between the two sequences. Results with several pairs of proteins are in good agreeme...
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