geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Enzymatic de polymerization of lamellar single crystals of nigeran


, : Enzymatic de polymerization of lamellar single crystals of nigeran. Biopolymers 19(5): 1069-1080

Lamellar single crystals of the .alpha.-glucan:nigeran were subjected to controlled enzymic degradation as an approach to understanding polysaccharide organization in these crystals. Analysis of both reactant and products by various methods argues that a situation exists where the crystals are inaccessible at 20.degree. C but become increasingly accessible as the temperature approaches that of solution for the crystals in water. Chain folds are inaccessible to enzymes at 20.degree. C and become increasingly accessible as one approaches the melting temperature. This could be due to increased mobility of the surface chains as temperature is raised, which produces large dynamic loops and makes enzyme degradation possible. The general conclusion is that nigeran single-crystal surfaces are disordered and increasingly mobile close to their dissolution temperature in water. [Nigeran, a hot water soluble D-glucan composed of laternating (1 .fwdarw. 3)-.alpha.- and (1 .fwdarw. 4)-.alpha.-linkages, is a hyphal wall constitutent of certain Aspergillus and Penicillium species.].

US$29.90


Other references

Kurihara, O.; Seino, Y.; Shibata, Y.; Matsushita, M.; Komiyama, H.; Kato, K.; Murakami, D.; Munakata, R.; Takano, M.; Miyauchi, Y.; Hata, N.; Shimizu, W., 2016: Blunted renal vasoconstriction in patients with subclinical contrast-induced renal injury. NlmCategory="UNASSIGNED">Contrast media are considered to cause acute kidney injury by activating various factors that induce renal vasoconstriction. We analysed the renal microvascular haemodynamic response using the Doppler flow wir...

Dahiya, S.; Kumar, A.Naresh.; Shanthi Sravan, J.; Chatterjee, S.; Sarkar, O.; Mohan, S.Venkata., 2017: Food waste biorefinery: Sustainable strategy for circular bioeconomy. Enormous quantity of food waste (FW) is becoming a global concern. To address this persistent problem, sustainable interventions with green technologies are essential. FW can be used as potential feedstock in biological processes for the generatio...

Mendonça, A.; Rocha, A.C.; Duarte, A.C.; Santos, E.B.H., 2013: The inner filter effects and their correction in fluorescence spectra of salt marsh humic matter. The inner filter effects in synchronous fluorescence spectra (Δλ=60 nm) of sedimentary humic substances from a salt marsh were studied. Accordingly to their type and the influence of plant colonization, these humic substances have different spec...

Hood J.D.; Waniewski E., 1985: Contribution of peripheral vision to vestibulo ocular reflex suppression. Igarashi, M And F O Black (Ed ) Vestibular And Visual Control on Posture And Locomotor Equilibrium: 7th International Symposium Of The International Society Of Posturography, Houston, Tex , Usa, Nov 30-Dec 2, 1983 X+366p S Karger: Basel, Switzerland; New York, N Y , Usa Illus 251-256

Angus, B.; D.S.lva, R.; Davidson, R.; Bone, I., 1994: A family with adult-onset cerebral adrenoleucodystrophy. A family in which three members presented with cerebral adrenoleucodystrophy in adulthood is described. The implications on our understanding for the mechanisms controlling the phenotypic expression of this genetic disorder are discussed.

Remorino, A.; De Beco, S.; Cayrac, F.; Di Federico, F.; Cornilleau, G.; Gautreau, A.; Parrini, M.Carla.; Masson, J-Baptiste.; Dahan, M.; Coppey, M., 2017: Gradients of Rac1 Nanoclusters Support Spatial Patterns of Rac1 Signaling. Rac1 is a small RhoGTPase switch that orchestrates actin branching in space and time and protrusion/retraction cycles of the lamellipodia at the cell front during mesenchymal migration. Biosensor imaging has revealed a graded concentration of acti...

Kashiwase, M.; Sakai, J.; Usui, M., 2000: Uveitis associated with zoster sine herpete. Diagnosis and clinical findings. Zoster sine herpete (ZSH) causes solely neurologic symptoms without the eruption that is evident in herpes zoster ophthalmicus. It is occasionally complicated by acute granulomatous uveitis. We examined patients suspected of ZSH for detection of t...

Lu, P.; Liang, Y.; Li, D.; Wang, Z.; Li, W.; Wang, G.; Wang, Y.; Zhou, S.; Wu, Q.; Xie, J.; Zhang, D.; Chen, Y.; Li, M.; Zhang, Y.; Sun, Q.; Han, C.; Liu, Z., 2016: Fine genetic mapping of spot blotch resistance gene Sb3 in wheat (Triticum aestivum). Spot blotch disease resistance gene Sb3 was mapped to a 0.15 centimorgan (cM) genetic interval spanning a 602 kb physical genomic region on chromosome 3BS. Wheat spot blotch disease, caused by B. sorokiniana, is a devastating disease that can caus...

Nordstrom Karl F., 1981: Differences in grain size distributions with shoreline position in a spit environment. Northeastern Geology 3(3-4): 252-258

Holt, B.F.I.I.I.; Hubert, D.A.; Dangl, J.L., 2003: Resistance gene signaling in plants - complex similarities to animal innate immunity. During the past year several important publications have significantly enhanced our current understanding of plant disease resistance. Among the most important discoveries are the role of SGT1 in resistance (R) gene mediated defenses, mounting sup...