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HELIX
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Irregular inflected form: helices
I. (noun)
Sense 1
Meaning:
Type genus of the family Helicidae
Synonyms:
genus Helix; Helix
Classified under:
Hypernyms ("Helix" is a kind of...):
mollusk genus (a genus of mollusks)
Meronyms (members of "Helix"):
edible snail; Helix pomatia (one of the chief edible snails)
garden snail (any of several inedible snails of the genus Helix; often destructive pests)
brown snail; Helix aspersa (serious garden pest having a brown shell with paler zigzag markings; nearly cosmopolitan in distribution)
Helix hortensis (a kind of garden snail)
Holonyms ("Helix" is a member of...):
family Helicidae; Helicidae (land snails including the common edible snail and some pests)
Sense 2
Meaning:
A structure consisting of something wound in a continuous series of loops
Example:
a coil of rope
Synonyms:
coil; helix; spiral; volute; whorl
Classified under:
Nouns denoting man-made objects
Hypernyms ("helix" is a kind of...):
construction; structure (a thing constructed; a complex entity constructed of many parts)
Hyponyms (each of the following is a kind of "helix"):
hank (a coil of rope or wool or yarn)
Derivation:
helical (in the shape of a coil)
Sense 3
Meaning:
A curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
Synonyms:
helix; spiral
Classified under:
Nouns denoting two and three dimensional shapes
Hypernyms ("helix" is a kind of...):
curve; curved shape (the trace of a point whose direction of motion changes)
Hyponyms (each of the following is a kind of "helix"):
double helix (a pair of parallel helices intertwined about a common axis)
Context examples:
Nucleotide Excision Repair (NER) mends DNA regions that contain chemical adducts, such as UV-induced thymine dimers or carcinogenic adducts, which distort the DNA helix and interfere with replication and transcription.
(Nucleotide Excision Repair, NCI Thesaurus)
Tetranucleotide recognition is supported by an aliphatic alpha-helix/beta-sheet RNA-binding platform that mimics UG by making Watson-Crick-like hydrogen bonds with CA.
(Neuro-Oncological Ventral Antigen 2, NCI Thesaurus)
Molecules called nucleotides, on opposite strands of the DNA double helix, that form chemical bonds with one another.
(Base pair, NCI Dictionary)
Its amphipathic alpha helix binds to the PKA RII subunit and tethers the enzyme near its substrates.
(A Kinase Anchor Protein 12, NCI Thesaurus)
DNA forms 2 long strands that wind around each other to form a double helix.
(Structural Snapshots of Damaged DNA, NIH)
Strongly similar to murine Ant1, ANT1 contains 3 solute carrier (Solcar) repeats and the signature RRRMMM motif of nucleotide carriers; six alpha helices form a compact transmembrane domain.
(Adenine Nucleotide Translocator-1, NCI Thesaurus)
The curved cartilage ridge on the flap of the ear that is parallel to the helix.
(Antihelix, NCI Thesaurus)
The amphipathic helix motif is characterized by a repeating pattern of polar (P) and non-polar (N) side-chains that can be summarized as PxNPPNx.
(Amphipathic Alpha Helix, NCI Thesaurus)
The domain shows more diversity in structure and function than the highly conserved sequence suggests: at least six alpha helices separated by beta-strands, loops, or turns.
(ARID Domain, NCI Thesaurus)
The smaller of the two types of spiral grooves found on a right-handed DNA double helix; located between the sugar phosphate backbones of two DNA strands.
(Minor Groove, NCI Thesaurus)
