Tallre mediadata y precipitontibruker with 15many

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Unformatted text preview: DF-4 Rubber 1 10 use [See (23) for details of elemental analyses.] u the intensity b were collected a on have as to as % unusual mRNA secondary structure result in lial silk’sls toproperties.ce rc– spider silk proteins of 12.tAllre mediadata y precipitontiBruker with 15many 20seven highly specialized the frame thread of the spider’s web, is one of cel fiber produ 5. Stress-strain curves from testing of ADF-3– based fibers (sample 1, Table 1). 109 ot i r SMART CCD Tendon 1 x The curves igh modieicnslunrxrweichhhe simiarerspto that of silk 5d 103 the strongest silks studied, being three times ammonidiffractometerawithÅ) or an mono-ichment of at least u ( 0.71073 a graphite Struch andCprn cesoed afore ewahmglet tbyfibeaswlng) aurn sent analysis inefficient translation fragments, each 1/2 inchsize of performed on seven different fiber that limits the in length. chromated MoKm sulf te f radiation. enr ol s u ( xp dr i a e as tough as aramid fibers and five times tures were solved by direct methods, and successive Nexia cr t c l o d se mi ed in n c r id r s. 50% in a ssyntheses step (32). The pJ7V cipBiotechnologies, -Vaudreuil-Dorion,U.S. Army stronger by weight than steel (7–10). re 8P5, itated Materials Science Team, Quebec pro the silks produced (23). The feasibility of proteiiinas in beterrvning mechtahieal sppopeetire’s silk glands difference Fourier ingle with SHELXTL software Canada. s into sheetsD. Tirrell, tenacity values (29). The 1996. Sciencefurther optimization of the spinning process. Wet spinning of rc-silk as described here de271:39 package. Final R1 values were calculated with I The t2 i(nsCrystalodataaare infollows: DF-3, cubic,ereSoldieraUSA.y redis- Command, Natick, MA secretedprotein core of dragline silk fibers is e I). , c nt inas g A IRMOF-2, w 01760, Biological Chemical re dil producing soluble ( pe Aon a chem o t c forma iin and s eral – spider silk fibers was lower than that of rc– spider silks (up to 100 spun23). nds nalysisical fransondittoonedevmedia revealed A decrease in the diameter of the as a mixture of two soluble proteins space group Fm-3m, a 25.772(1) Å, V 17117(1) h p://www.sciencenews.org/pages/sn_edpik/ps_5.htm the ppsrtesnnncedrow stcps sfpr dehieviinlg fiperoteins of the e dragline silk; however, from this and fiber with higher draw correlatedin with ino spi e ing a f r e – oi ac r s k b r sÅo,lZve8, R1n 0.0976;sIRMOF-3,ecubic, Fm-3mead sal*Toewhom correspondence should be addressed. E- from specialized columnar epithelial cells of d i pho phat -buffer , in . In contrast, kD) by using synthetic genes (MaSpI) r studies (29), h p://www.naturalhistorymag.com/1006/1006_biomechanics.html esumably due to aligned microcomparison of the effects creased birefringence (Fig. 6). Upon drawing, properties pr mail: [email protected]tech.com 25.747(1) Å, V 17067(2) Å , Z 8, R1 0.1160; the major ampullate gland of orb-weaver 25 rc– spider silks produced in E. coli or yeast and transgenic plants birefringence in silks is recentl...
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