Search results
Results From The WOW.Com Content Network
The structure of the condensed chromatin is thought to be loops of 30 nm fibre to a central scaffold of proteins. It is, however, not well-characterised. Chromosome scaffolds play an important role to hold the chromatin into compact chromosomes. Loops of 30 nm structure further condense with scaffold, into higher order structures. [21]
According to one definition, a turn is a structural motif where the C α atoms of two residues separated by a few (usually 1 to 5) peptide bonds are close (less than 7 Å [0.70 nm]). [1] The proximity of the terminal C α atoms often correlates with formation of an inter main chain hydrogen bond between the corresponding residues.
The quaternary structure of nucleic acids is similar to that of protein quaternary structure. Although some of the concepts are not exactly the same, the quaternary structure refers to a higher-level of organization of nucleic acids. Moreover, it refers to interactions of the nucleic acids with other molecules.
A structural domain is an element of the protein's overall structure that is self-stabilizing and often folds independently of the rest of the protein chain. Many domains are not unique to the protein products of one gene or one gene family but instead appear in a variety of proteins.
A chain of nucleosomes can be arranged in a 30 nm fiber, a compacted structure with a packing ratio of ~50 [18] and whose formation is dependent on the presence of the H1 histone. A crystal structure of a tetranucleosome has been presented and used to build up a proposed structure of the 30 nm fiber as a two-start helix. [34]
105083 Ensembl ENSG00000152684 ENSMUSG00000042275 UniProt Q9BRX2 Q80X73 RefSeq (mRNA) NM_015946 NM_134058 RefSeq (protein) NP_057030 NP_598819 Location (UCSC) Chr 5: 52.79 – 52.8 Mb Chr 13: 115.22 – 115.23 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Protein pelota homolog is a protein that in humans is encoded by the PELO gene. This gene encodes a protein which contains a ...
Nucleoporins are a family of proteins which are the constituent building blocks of the nuclear pore complex (NPC). [1] The nuclear pore complex is a massive structure embedded in the nuclear envelope at sites where the inner and outer nuclear membranes fuse, forming a gateway that regulates the flow of macromolecules between the cell nucleus and the cytoplasm.
The strict regulation of translation in both space and time is in part governed by cis-regulatory elements located in 5′ mRNA transcript leaders (TLs) and 3′ untranslated regions (UTRs). Due to their role in translation initiation, mRNA 5′ transcript leaders (TLs) strongly influence protein expression.