Secondary structure

When analyzing the secondary structure predictions of the query sequence from the five prediction programs, the majority of the programs seemed to detect the presence of one long, uninterrupted helix on the N-terminal side of the pilE protein. However, some programs, such as PORTER (Pollastri et al., 2005) and SSpro (Magnan et al., 2014) indicated the presence of two helices interrupted by a small gap of random coils. While these results appear to contradict each other at first, upon further inspection

RNA GQ structures in cap-independent translation initiation. RNA G-quadruplex (GQ) is a secondary structure that can act as both necessary elements of translation and as translation repressors.1-3 The role of GQ structures in translational modulation depends on the context in which the GQ structure is present.4 However, it is well established that these structures mostly inhibit translation.2,5-7 In fact, rational introduction of GQ structures specifically downregulate the expression of targeted

further understanding of the secondary structure of this protein. It is apparent that the secondary structure of alkaline phosphatase, tissue non-specific isozyme isoform 1-precursor contains primarily alpha helices, yet also contains a few beta sheets. The figure displays the alpha helices by long, red tube like figures and the beta sheets as green arrows. Because this figure contains many more long red tubes than green arrows, it is apparent that the secondary structure contains mostly alpha helices

primary, secondary, tertiary, and quaternary. Primary structure is defined as the linear sequence of amino acids in a polypeptide chain. The secondary structure refers to certain regular geometric figures of the chain. Tertiary structure results from long-range contacts within the chain. The quaternary structure is the organization of protein subunits, or two or more independent polypeptide chains. The primary structure of a protein is simply the sequence of amino acids. The structure or

Protein Denaturation-an Important Concept in Biology! Biology has many topics which unfold the truths of nature in an interesting way. Protein denaturation is one such topic which shows how denaturation of protein is found in common household activities like cooking. What are proteins? Proteins are found in all living beings. They are large molecules which are composed of folded amino acid chains. Every protein has its unique shape and functions based on its shape. Proteins are like keys that fit

of bonding is (are) involved at each of the following levels of protein structure (4pts.): a. Primary- Joined by peptide bonds at this level. Peptide bonds are a type of covalent bond between two different amino acids where the carbonyl group on one amino acid bonds with the amino group on the other amino acid thus releasing water (H2O). b. Secondary- Hydrogen bonding is involved at the secondary level of protein structure. Hydrogen bonding occurs at regular intervals along the polypeptide backbone

Benner, 2001; Wang and Gu, 2001). Different BLOCKs evolve at a different rate. However, for a given family (or BLOCK) it is constant (Dickerson 1971; Dayhoff and Schwartz, 1978). The divergence, although alters primary sequences, sequence of secondary structure largely remains unaltered, the one that acts as a determinant for functional state of proteins of homologous family (Shen, Jones and Mohrenweiser, 1998). The fact that not all hetero-pairs (total 190) contribute equally to the evolution of a

This paper will examine the three-dimensional structure of BVR and its specific interactions. Among the 204 amino acid residues in BVR, its secondary structure contains alpha-helices, beta-sheets, and turns, as seen in Figure 2 (4). The arrangement of these helices and sheets represents that of a Rossmann Fold (5). The protein structure of a Rossmann Fold contains six parallel beta strands that are linked to two pairs of alpha helices (6)

My Journey to Become A Protein Butterfly By: Courtney Hofer Hello, my name is Kelly the protein. I am going to tell you my story how I came to be a beautiful protein butterfly. There are two different process of becoming a protein butterfly;they are translation and transcription. Has I was going to say the first one is translation. Translation is where I made a twin mRNA molecule in the nucleus of an eukaryotic from a DNA.There were four adventures I went on during translation. My adventures begins

Scarlet Letter Analysis Form, Structure and Plot: The structure that Hawthorne puts the Scarlet Letter is very tight, and is in essentially three parts, each revolving around the scaffold. The first scaffold scene, Hester confesses her sin of adultery to the crowd in the light of day. The second scaffold scene takes place in the middle of the book at night; it is the climax of the plot. Dimmesdale climbs onto the scaffold, and asks for Hester and Pearl to join him. This is not a confession, as there