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 ?
As each hairpin bend came, I noted the decreasing numbers, now at 38, and tried not to worry that we were still a long way off the final one.
Note however that no complex thermal steps were involved; that specificity arises, much as in PCR, from the complementarity of two DNA regions; and that the strand extension (amplification) could be expected to occur across a relatively wide range of temperatures around the Tm at which the hairpin region is stable, as the hairpin only needs to transiently occur for priming to initiate and an increasingly long and thus stable double-stranded product to ensue.
Distant variants in exons 3, 4, 8, 12, and 22 were also genotyped by using 2 snapback primers with hairpins of different stabilities that allowed all allele melting temperatures ([T.
As the lights went green, the tension was shattered again by the growl of angry Minis as they powered towards the first corner; a tight hairpin that was sure to see some shenanigans.
Fasten it down with hairpins after you tuck in any ends.
When the wreath is covered, use more hairpins, glue, or floral picks to add color accents.
325 GHz filter in this technique, half wavelength hairpins were chosen to achieve correct quarter wavelength coupling between the resonators.
Fold the loose side under, wrap around your fingers and secure with hairpins.
l Pull the braids over your head to create an Alice-band effect and secure them with Scunci no-slip hairpins, pounds 1.
The human lentiviral shRNAmir library is no exception, allowing us to target any gene in the human genome with microRNA-adapted hairpins.