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Alpha helix (2689 bytes)
1: ...tein.jpg|right|thumb|150px|A diagram of the alpha helix structure of amino acids]] 2: In [[protein]]s, the '''α helix''' is a major structural motif in [[secondary str... 4: ...id side-chains are arranged at the outside of the helix. The [[amine|N-H]] group of amino acid (n) can es... 6: ...ide chain is too high. Some amino acids (called ''helix breakers'') like [[proline]] will disrupt the hel... 8: ...like [[glutamic acid]]) in order to stabilise the helix dipole. Less common (and less effective) is C-ter... Helix-turn-helix (2162 bytes) 1: ... of [[bacteriophage lambda]] employs a helix-turn-helix to bind [[DNA]].]] 3: ...ing [[DNA]]. It is composed of two [[alpha helix|α helices]] joined by a short strand of [[amino ac... 5: ...th exposed [[base pair|bases]]. The other α helix stablizes the interaction between protein and DNA... 9: * [[Alpha helix]] 13: * Brennan RG, Matthews BW. "The helix-turn-helix DNA binding motif." ''J. Biol. Chem.'' 264: 1903-... Alpha Sigma Alpha (293 bytes) 1: '''Alpha Sigma Alpha''' is a US national [[sorority]] founded on Novem... Alpha Chi Alpha (2696 bytes) 3: ... Miller (1962), whose experiences as a brother of Alpha Delta fraternity are rumored to be the basis for ... 5: ... that was used as social space by the brothers of Alpha Chi to make way for a new expanded basement and m... 9: ...e Dartmouth chapter strongly disagreed. Alpha Chi Alpha has been in continual operation ever since. 13: ...n Fall 2004 the newest reincarnation of Alpha Chi Alpha will be able to house 24 brothers in rooms and ho... The Helix (516 bytes) 1: ...y conferring and national arts shows. In fact the Helix has three areas for live performances: 8: * [http://www.helix.ie Official link] Helix (2638 bytes) 1: :''This article is about the shape. See [[Helix (disambiguation)]] for other meanings.'' 3: ...ave helical substructures, known as [[alpha helix|alpha helices]]. 5: ...Two helices]]<br>A left-handed and a right-handed helix.</div> 6: ...t of the perspective: you can turn a right-handed helix around and it's still right-handed. 8: Most screws are right-handed helices. The alpha helix in biology as well as the A and B forms of DNA ar... The Double Helix (442 bytes) 1: '''''The Double Helix: A Personal Account of the Discovery of the Struc... 5: ...tegory:Modern Library 100 best non-fiction|Double Helix, The]] 6: [[Category:1968 books|Double Helix, The]] 7: [[category:Science books|Double Helix, The]] 8: [[Category:Autobiographies|Doublr Helix, The]] Double helix (655 bytes) 1: ...g|right|Image of a DNA chain - showing the double helix]] 3: ..., and van der Waals forces forming a '''double''' helix. Double-Helix (837 bytes) 1: The '''Double-Helix''' are an alien race in the [[Wing_Commander_(com... 3: ...]]-like structure of their spaceships, the Double-Helix are a race of carbon-based arthropods which commu... Helix (disambiguation) (730 bytes) 1: '''Helix''' can mean several things: 3: * [[Helix]], the shape 4: * ''[[Helix (genus)]]'', the [[genus]] of terrestrial [[snail... 5: * [[Helix project]], the open source media project 6: * [[Helix database]], the [[Apple Macintosh|Macintosh]]-bas... Helix (comics) (1913 bytes) 1: '''Helix''' was a short-lived imprint of [[DC Comics]], wi... Collagen helix (1085 bytes) 1: ...[secondary structure]]. It consists of a triple [[helix]] made of the repetitious [[amino acid]] sequence... 2: ... open than the tightly coiled form of the [[alpha helix]]. 3: ...gen bonding. The rise of the collagen helix (superhelix) is 2.9 [[angstrom]] per residue. 5: ...' [[tertiary structure]] -- [[alpha helix|α helix]] -- [[beta sheet|β sheet]] Helix (genus) (5542 bytes) 1: {{Taxobox_begin | color = pink | name = Helix}} 2: ... (''Helix pomatia'')]] | caption = Roman snail (''Helix pomatia'')}} 9: {{Taxobox_genus_entry | taxon = '''Helix'''}} 15: ...]] are: ''Helix aspersa'' (Brown Garden Snail), ''Helix pomatia'' (Roman Snail, Burgundy Snail, and the ... 21: The common garden snails (''Helix aspersa'') are [[herbivore]]s. They are able to d... Helix database (5512 bytes) 1: ...blems have relegated it to a niche product. Today Helix is twenty years old, but still has a strong follo... 5: ...ther. With a maximum database size of under 500k, Helix's data management capabilities didn't need to be ... 7: ...rsion of Helix installed, as well as '''MultiUser Helix''' which operated in a [[client-server]] fashion. 9: ...ter]]. In 1992 Odesta split up, with the original Helix applications being spun off. 11: ..., was released as a free [[RAD]] tool known as '''Helix RADE'''. These two products continue to be offere... Quad Helix (367 bytes) 1: [[Image:Quad Helix.jpg|thumb|A Quad Helix orthodontic appliance]] 2: ...o the [[molar]]s by 2 bands and has four active [[helix]] [[spring (device)|springs]] that widen the arch... Helix Nebula (1616 bytes) 1: [[Image:Helix Nebula.jpg|thumb|NGC 7293, the Helix Nebula.]] 3: The '''Helix Nebula''' ('''NGC 7293''') is one of the closest ... 5: Helix was discovered by [[Karl Ludwig Harding]] before ... 9: ...r [[vantage point]] as if we are looking down a [[helix]]. The remnant central stellar core, destined to ... 11: ...d spans about 2.5 light-years. Recent pictures of Helix are a composite of newly released images from the... Helix (band) (769 bytes) 1: '''Helix''' is a heavy metal band from [[Canada]]. During ... 10: *[[1989]] - ''over 60 minutes with helix...best of'' Transmembrane helix (1513 bytes) 1: ...mbrane that they be hydrophobic as well. An alpha helix of about 20 amino acids long is the minimum requi... Helix, Oregon (2619 bytes) 1: '''Helix''' is a city located in [[Umatilla County, Oregon... 4: ...-doton-Helix.png|right|Location of Helix, Oregon]]Helix is located at 45°51'3" North, 118°39'30" ... Helix (cipher) (1705 bytes) 1: ...adayoshi Kohno and was published in [[2003]]. The Helix [[algorithm]] has been put fully into the [[publi... 3: ...ised for 32-bit platforms, the authors claim that Helix can run twice as fast as [[AES]] on a [[Pentium I... 5: ...which in turn affects the key-stream. This allows Helix to perform authentication as well as encryption. 7: In [[2004]], Muller published two attacks on Helix. The first has a complexity of 2<sup>88</sup> and... 14: ..., pp330–346 [http://www.macfergus.com/helix/helix.pdf (PDF)].
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