نتایج جستجو برای: amino acid aa
تعداد نتایج: 829625 فیلتر نتایج به سال:
Astroviruses have been widely described in mammalian and avian species. Here, we report a complete genome sequence of a novel porcine astrovirus (PoAstV) isolated from a porcine fecal sample in China. The genome consists of 6,611 nucleotides, excluding the 3' poly(A) tail, and has two open reading frames (ORFs). ORF1 maps between nucleotide positions 19 and 4211 and encodes a 1,396-amino-acid (...
The aim of the present research is to investigate the profile of amino acid of Chlorella vulgaris supplemented with some plant amino acid and oil extracts. The bioactive oil and amino acid from four Iranian medicinal plants, namely Oliveria decumbens, Thymus kotschyanus, Trachyspermum ammi, and Zataria multiflora were obtained. The LC-MS / MS analysis demonstrated that the major amino acids com...
Elongation factor Tu (EF-Tu) binds all elongator aminoacyl-transfer RNAs (aa-tRNAs) for delivery to the ribosome during protein synthesis. Here, we show that EF-Tu binds misacylated tRNAs over a much wider range of affinities than it binds the corresponding correctly acylated tRNAs, suggesting that the protein exhibits considerable specificity for both the amino acid side chain and the tRNA bod...
Profile hidden Markov models (profile HMMs) are known to efficiently predict whether an amino acid (AA) sequence belongs to a specific protein family. Profile HMMs can also be used to search for protein domains in genome sequences. In this case, HMMs are typically learned from AA sequences and then used to search on the six-frame translation of nucleotide (NT) sequences. However, this approach ...
Plasma and intraluminal amino acid profiles were compared in normal subjects 30, 60, 120, 180 minutes after meals containing either a peptide-rich protein hydrolysate (H) or an equivalent free amino acid mixture (AA) as the nitrogen source. Except for asparagine (30 minutes) and glutamine (30 and 60 minutes), which were absorbed to a significantly (p less than 0.05) greater extent from the pept...
a. Amino acid sequence of the AfCcdA expression construct. E. coli DsbDα (gray) is at the N-terminus, followed by a thrombin cleavage site (underlined) and a 9-residue spacer, followed by the AfCcdA sequence with a C-terminal His-tag. Non-native residues in the final NMR protein sample are italicized.b. AfCcdA oxidized (CC) and reduced state (AA) sequences marked with actual and predicted TM he...
Two experiments (Exp.) were conducted to establish amino acid (AA) digestibility coefficients (DC) for broilers given corticosterone (CS)-induced stress using the apparent ileal digestibility assay. For Exp. 1, 192 Ross x Ross 708 male broilers were placed into 16 floor pens (12 birds/pen). For Exp. 2, 120 Ross x Ross 308 male broilers were placed into 10 floor pens (12 birds/pen). Pens contain...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
The 206-kDa protein of turnip yellow mosaic virus belongs to an expanding group of proteins containing a domain which includes the consensus nucleotide binding site GxxxxGKS/T. A portion of this protein (amino acids [aa] 916 to 1259) was expressed in Escherichia coli and purified by affinity chromatography to near homogeneity. In the absence of any other viral factors, it exhibited ATPase and G...
Dietary proteins represent 10 to 20% of energy consumption. The recommended daily minimum intake of protein and amino acids in adults is 0.8 g per kg of body weight. However, no upper limit has been identified. In industrialized countries, the main sources of protein are milk, eggs and meat. The nutritional value of protein is influenced by several factors, especially the amino acid (AA) compos...
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