hairpin


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hair·pin

( hār'pin),
1. The structure formed by a polynucleic acid by base-pairing between neighboring complementary sequences of a single strand of either DNA or RNA.
2. The structure seen in a prostaglandin where two segments of the molecule fold back on one another.
Hairpinclick for a larger image
Fig. 187 Hairpin . (a) Hairpin. (b) Hairpin loop.

hairpin

a double-stranded structure found in single-stranded NUCLEIC ACID molecules, due to BASE PAIRING between adjacent complementary sequences. The two sequences are inversely arranged and may be directly adjacent, as in a PALINDROME, or interrupted by a non-complementary sequence. In the former case a double-stranded segment (hairpin) is generated; in the latter a hairpin-loop structure forms.

hairpin

a secondary structure that occurs in single-strand RNA during protein synthesis in which the strand turns back on itself. The structure is the result of base pairing and hydrogen bond formation.
References in periodicals archive ?
This seemed unbelievable as I had been cycling for more than two hours and I was still in double figures for the hairpin bends.
These hairpin primers then delineate the region to be detected through its amplification, if present in a sample.
The Hairpin got hold of the actual birth certificate back in January.
A permanent fixture on the calendar since 1999, the Sepang circuit is one of the first F1 venues to have been designed by architect Hermann Tilke and features his trademark long straights, hairpins and fast esses.
By appropriately folding the central connecting line between the two stubs, a novel coupled-line hairpin resonator shown in Fig.
Another method for genotyping separated loci is to design a bulge into the snapback hairpin, as demonstrated for exon 23 for variants p.
Hamilton regained the advantage after the firstround of pit-stops and, when Perez tried to go around the outside at the hairpin, the Sauber spun off into the gravel and out of the race.
Hamilton regained the advantage after the first-round of pit stops and, when Perez tried to go around the outside at the hairpin, his car spun off into the gravel and out of the race.
Perez dropped behind Hamilton after running wide while trying to pass Felipe Massa, but made a pass on the Briton at the hairpin in a cloud of tyre smoke as he locked up his left-front tyre.
The starts and general standard of racing was exceptionally good, although MiniMax drivers had some issues at the bottom hairpin.
The problem is that it 'cuts the corners' of the hairpin bends inside the intestine and gets stuck.
Keen to avoid any chance of being taken out for the second race in succession, the Oman Air Racing Team driver adopted a sensible approach through Deene Hairpin and remained in second for the first couple of laps although the slightest of moments on lap three enabled Derek Pierce to sneak by.