منابع مشابه
The moduli space of hyper-Kähler four-fold compactifications
I discuss some aspects of the moduli space of hyper-Kähler four-fold compactifications of type II and Mtheories. The dimension of the moduli space of these theories is strictly bounded from above. As an example I study Hilb(K3) and the generalized Kummer variety K(T ). In both cases RR-flux (or G-flux in M-theory) must be turned on, and we show that they give rise to vacua with N = 2 supersymme...
متن کاملStructural Bridges through Fold Space
Several protein structure classification schemes exist that partition the protein universe into structural units called folds. Yet these schemes do not discuss how these units sit relative to each other in a global structure space. In this paper we construct networks that describe such global relationships between folds in the form of structural bridges. We generate these networks using four di...
متن کاملUniversal Affine Triangle Geometry and Four - fold
We develop a generalized triangle geometry, using an arbitrary bilinear form in an affine plane over a general field. By introducing standardized coordinates we find canonical forms for some basic centers and lines. Strong concurrencies formed by quadruples of lines from the Incenter hierarchy are investigated, including joins of corresponding Incenters, Gergonne, Nagel, Spieker points, Mittenp...
متن کاملOn distance and similarity in fold space
Metric information on similarities and distances in fold space is essential for quantitative work in structural bioinformatics and structural biology. Here we derive a suitable metric for protein structures from the fundamental axioms of similarity. Derivation of the metric also clarifies the relationship between the interrelated concepts of distance and similarity.
متن کاملTouring protein fold space with Dali/FSSP
The FSSP database and its new supplement, the Dali Domain Dictionary, present a continuously updated classification of all known 3D protein structures. The classification is derived using an automatic structure alignment program (Dali) for the all-against-all comparison of structures in the Protein Data Bank. From the resulting enumeration of structural neighbours (which form a surprisingly con...
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ژورنال
عنوان ژورنال: Science
سال: 1892
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-19.486.304