four helix bundle
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Helix bundle — A helix bundle is a small protein fold composed of several alpha helices that are usually nearly parallel or antiparallel to each other. Three helix bundlesThree helix bundles are among the smallest and fastest known cooperatively folding… … Wikipedia
Alpha helix — A common motif in the secondary structure of proteins, the alpha helix (α helix) is a right handed coiled conformation, resembling a spring, in which every backbone N H group donates a hydrogen bond to the backbone C=O group of the amino acid… … Wikipedia
Winged helix turn helix — The winged helix turn helix (wHTH) (SCOP|46785) is a DNA binding domain which binds to specific DNA sequences. It is formed by a 3 helical bundle and a 3 or 4 strand beta sheet (wing). Topology of helices and strands in the wHTH families may vary … Wikipedia
Oncostatin M — PDB rendering based on 1evs … Wikipedia
Rop protein — Rop (also known as repressor of primer) is a small homodimeric four helix bundle protein formed by the antiparallel interaction of two helix turn helix monomers. The protein is expressed in Escherichia coli as a mechanism for regulating the gene… … Wikipedia
Interferon — Interferons (IFNs) are natural proteins produced by the cells of the immune system of most vertebrates in response to challenges by foreign agents such as viruses, parasites and tumor cells. Interferons belong to the large class of glycoproteins… … Wikipedia
Nematode Her-1 — Caenor Her 1 crystal structure of c. elegans her 1 Identifiers Symbol Caenor Her 1 Pfam … Wikipedia
Granulocyte colony-stimulating factor — Not to be confused with granulocyte macrophage colony stimulating factor. Colony stimulating factor 3 (granulocyte) Crystal structure of 3 molecules of human G CSF. From PDB … Wikipedia
Histidine kinase — protein Name = Histidine Kinase width = caption = Crystallographic structure of ATP:protein L histidine N phosphotransferase based on the PDB|2c2a coordinates. Symbol = HK AltSymbols = ATC prefix= ATC suffix= ATC supplemental= CAS number= 99283… … Wikipedia
Structural alignment — is a form of sequence alignment based on comparison of shape. These alignments attempt to establish equivalences between two or more polymer structures based on their shape and three dimensional conformation. This process is usually applied to… … Wikipedia
