Motif

Motif
Three-dimensional structure of gene product (protein) with known or implied function. eg DNA binding membrane spanning. A motif is often inferred from a cDNA sequence.
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Motifs found in transcription factors
Helix-turn-helix (HTH) bind the major groove of the DNA.
Zinc fingers function as structural platforms for DNA binding.
Leucine zippers function in associating the transcription factors with each other.
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Motif
A small portion of a protein (typically less than 20 amino acids) that is homologous to regions in other proteins that perform a similar function.
MOI
See Multipilicity Of Infection.
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motif - A discrete portion of a protein assumed to fold independently of the rest of the protein and possessing its own function [from NCBI BLAST Guide Glossary]. Some common types of motifs are made up of two or more alpha helices or beta sheets.
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Motif: A recurring pattern of short sequence of DNA, RNA, or protein, that usually serves as a recognition site or active site. The same motif can be found in a variety of types of organisms.
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A common motif in the secondary structure of proteins, the alpha helix (α-helix) is a righthanded coiled conformation, resembling a spring, ...
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DNA binding motif
: Common sites on different proteins which facilitate their binding to DNA. Examples are leucine zipper and zinc finger proteins. Any such protein is called DNA-binding protein.
DNA
Polymerase ...
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Leucine zipper: A motif found in certain proteins in which Leu residues are evenly spaced through an a-helical region, such that they would end up on the same face of the helix. Dimers can form between two such proteins.
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The coiled coil is a ubiquitous motif that guides many different protein-protein interactions. The accepted hallmark of coiled coils is a sevenresidue (heptad) sequence repeat.
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leucine zipper A protein structural motif involved in protein-protein interactions in many eukaryotic regulatory proteins (C/EBP prototype). Contain a repeat structure: Leu residues in every seventh position, causes a large amount of DNA to loop out.
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The F-box is a protein motif of approximately 50 amino acids that functions as a site of protein-protein interaction.
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Domains often contain smaller motifs, consisting of a conserved pattern of amino acids, or of combinations of structural elements formed by the folding of nearby amino acid sequences. An example of a motif is a helix-loop-helix, which binds to DNA.
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These contain AUAGAU and GAU motifs (ref).
Recent evidence indicates that globin mRNAs may contain stability elements (ref). Thus, the conclusion that mRNAs are inherently stable may not apply to all mRNAs.
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The tulip is the national flower of Iran and Turkey, and tulip motifs feature prominently in Persian and Turkish folk arts.
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A protein structural motif common in transcription factors. Leucine zipper is formed by two proteins (homodimmer or heterodimmer) and binds to DNA.
Other Resources
PubMed Google ...
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helix- A secondary structural motif of proteins in which a linear sequence of amino acids folds into a right-handed helix stabilized by internal hydrogen bonding between backbone atoms.
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A small portion of a gene or protein that appears in many genes or proteins that are related in structure; the box usually has some specific function, sometimes called a "motif", ...
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The recent completion of the genome sequence of rice and C. elegans has revealed that their genomes contain thousands of copies of a recurring motif consisting of ...
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