| bHLH | basic helix-loop-helix |
|---|---|
| bHLH-ZIP | basic helix-loop-helix-leucine zipper |
| HLH | helix-loop-helix; hemophagocytic lymphohistiocytosis |
| HD | Haab-Dimmer [syndrome]; Hajna-Damon [broth]; Hansen disease; hearing distance; heart disease; helix ... |
| HPA | Health Care Practice Act; Health Policy Agenda for the American People; health promotion advocates; ... |
| HLH | B)-helix-loop-helix |
|---|---|
| bHLH | Basic Helix-Loop-Helix |
| bHLH | Basic region helix-loop-helix |
| H-T-H | helix-turn-helix |
| HhH | Helix-hairpin-Helix |
| helix | <chemistry, molecular biology> A spiral structure in a macromolecule that contains a repeating pattern. (09 Oct 1997) |
|---|---|
| helix (snails) | A genus of chiefly eurasian and african land snails including the principal edible snails as well as several pests of cultivated plants. (12 Dec 1998) |
| helix destabilising protein | <molecular biology, protein> Proteins involved in DNA replication. They bind cooperatively to single stranded areas of a DNA molecule in a double helix, causing the helix to unwind and preventing the reformation of the duplex and extending the DNA backbone, thus making the exposed bases more accessible for base pairing. (10 Oct 1997) |
| helix loop helix | <molecular biology> A motif associated with transcription factors, allowing them to recognise and bind to specific DNA sequences. Two _ helices are separated by a loop. Examples: myoblast MyoD1, c myc, Drosophila genes daughterless, hairy, twist, scute, achaete, asense. Not the same as helix turn helix. (18 Nov 1997) |
| helix turn helix | <molecular biology> A motif associated with transcription factors, allowing them to bind to and recognise specific DNA sequences. Two amphipathic _ helices are separated by a short sequence with a _ sheet. One helix lies across the major groove of the DNA, while the recognition helix enters the major groove and interacts with specific bases. An example in Drosophila is the homeotic gene fushi tarazu, that binds to the sequence TCAATTAAATGA. Not the same as helix loop helix. (18 Nov 1997) |
| helix-coil transition | <molecular biology> A change in the structure of a nucleic acid or protein molecule from a highly ordered, complex structure to a random, chaotic structure. Also means that the protein or nucleic acid becomes denatured. (09 Oct 1997) |
| helix-loop-helix motifs | A group of 20-residue peptides characterised by two alpha helices separated by a non-helical segment. These recurring supersecondary structural patterns are found in many sequence-specific DNA-binding proteins. (12 Dec 1998) |
| helix-turn-helix motifs | The first DNA-binding protein motif to be recognised. Helix-turn-helix motifs were originally identified in bacterial proteins but have since been found in hundreds of DNA-binding proteins from both eukaryotes and prokaryotes. They are constructed from two alpha helices connected by a short extended chain of amino acids, which constitute the "turn." the two helices are held at a fixed angle, primarily through interactions between the two helices. (12 Dec 1998) |
| a helix | The helical (commonly right-handed) form present in many proteins, deduced by Pauling and Corey from X-ray diffraction studies of proteins such as alpha-keratin; the helix is stabilised by hydrogen bonds between, e.g., ==C==O and HN== groups (symbolised by the centre dot in ==CO-HN==) of different eupeptide bonds. In a true a helix, there are 3.6 amino acid residues per turn of the helix. Synonym: 3.613 helix, Pauling-Corey helix. Collagen helix, an extended left-handed helix resulting from the high levels of glycine, l-proline, and l-hydroxyproline present in the collagens. There are 3.3 amino acids per turn of the helix. Three of those left-handed helices form a triple superhelix that is right-handed. (05 Mar 2000) |
|---|---|
| alpha helix | <molecular biology> A particular helical folding of the polypeptide backbone in protein molecules (both fibrous and globular), in which the carbonyl oxygens are all hydrogen bonded to amide nitrogen atoms three residues along the chain. The translation of amino acid residues along the long axis is 0.15 nm and the rotation per residue, 100 |
| Pauling-Corey helix | The helical (commonly right-handed) form present in many proteins, deduced by Pauling and Corey from X-ray diffraction studies of proteins such as alpha-keratin; the helix is stabilised by hydrogen bonds between, e.g., ==C==O and HN== groups (symbolised by the centre dot in ==CO-HN==) of different eupeptide bonds. In a true a helix, there are 3.6 amino acid residues per turn of the helix. Synonym: 3.613 helix, Pauling-Corey helix. Collagen helix, an extended left-handed helix resulting from the high levels of glycine, l-proline, and l-hydroxyproline present in the collagens. There are 3.3 amino acids per turn of the helix. Three of those left-handed helices form a triple superhelix that is right-handed. (05 Mar 2000) |
| groove of crus of the helix | A transverse fissure on the cranial surface of the auricle corresponding to the crus of the helix. Synonym: sulcus cruris helicis. (05 Mar 2000) |
| pi helix | A rare right-handed helix found only in small portions of certain proteins. Stabilised by similar hydrogen bonds as in an a helix; there are 4.3 amino acid residues per turn of the helix. (05 Mar 2000) |
| Watson-Crick helix | The helical structure assumed by two strands of deoxyribonucleic acid, held together throughout their length by hydrogen bonds between bases on opposite strands, referred to as Watson-Crick base pairing. See: base pair. Synonym: DNA helix, double helix, twin helix. (05 Mar 2000) |
| muscle of notch of helix | An occasional muscle on the cranial surface of the auricle spanning the antitragohelicine fissure. Synonym: musculus incisurae helicis, musculus intertragicus. (05 Mar 2000) |
| crus of helix | A transverse ridge continuing backward from the helix of the auricle, dividing the concha into an upper portion (cymba) and a lower portion (cavity of concha). Synonym: crus helicis, crista helicis, limb of helix. (05 Mar 2000) |
| smaller muscle of helix | <anatomy> A band of oblique fibres covering the crus of the helix of the auricle. Synonym: musculus helicis minor, smaller muscle of helix. (05 Mar 2000) |
| spine of helix | An anteriorly directed spine at the extremity of the crus of the helix of the auricle. Synonym: spina helicis, apophysis helicis. (05 Mar 2000) |
| DNA helix | The helical structure assumed by two strands of deoxyribonucleic acid, held together throughout their length by hydrogen bonds between bases on opposite strands, referred to as Watson-Crick base pairing. See: base pair. Synonym: DNA helix, double helix, twin helix. (05 Mar 2000) |
| double helix | <molecular biology> Conformation or shape that two linear strands of DNA assume when bonded together and become twisted into a helix. (10 Nov 1998) |
| tail of helix | A flattened process terminating the cartilage of the helix of the ear, posteriorly and inferiorly. Synonym: cauda helicis. (05 Mar 2000) |
| triple helix | The superhelix formed (right-handed) from three individual collagen helices (each being left-handed). (05 Mar 2000) |
| twin helix | The helical structure assumed by two strands of deoxyribonucleic acid, held together throughout their length by hydrogen bonds between bases on opposite strands, referred to as Watson-Crick base pairing. See: base pair. Synonym: DNA helix, double helix, twin helix. (05 Mar 2000) |
Synonyms :
Synonyms : Motifs, Helix-Loop-Helix, HLH Motif, Helix Loop Helix Motifs, Helix-Loop-Helix Motif, Motif, HLH, Motif, Helix-Loop-Helix, Motifs, HLH, Motifs, Helix Loop Helix
Synonyms : Motifs, Helix-Turn-Helix, HTH Motif, Helix Turn Helix Motifs, Helix-Turn-Helix Motif, Motif, HTH, Motif, Helix-Turn-Helix, Motifs, HTH, Motifs, Helix Turn Helix
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| helix |
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle coil: a structure consisting of something wound in a continuous series of loops; "a coil of rope" type genus of the family Helicidae
Ãâó: wordnet.princeton.edu/perl/webwn
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| helix |
Helix was a short-lived imprint of DC Comics, with a science-fiction theme, launched in 1996 and last used in 1998. It featured a handful of ongoing monthly series, several limited series, and one short graphic novel. ...
Ãâó: en.wikipedia.org/wiki/Helix_(comics)
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| helix |
A spiral section of track through which the train either ascends or descends.
Ãâó: www.geocities.com/RollerCoasterTalk/definitions.ht...
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| helix |
A spiral structure in a macromolecule that contains a repeating pattern.
Ãâó: www.hardydiagnostics.com/Glossary-H.html
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| helix |
Having a spiral, coiled form such as a screw thread or a spring.
Ãâó: www.accessexcellence.org/RC/AB/WYW/wkbooks/SFTS/gl...
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| helix | type genus of the family Helicidae |
|---|---|
| helix | a structure consisting of something wound in a continuous series of loops |
| helix | a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle |
| helix | the constant angle at which a helix cuts the elements of a cylinder or cone |
| helix | serious garden pest having a brown shell with paler zigzag markings |
| helix | a kind of garden snail |
| helix | one of the chief edible snails |
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