Results 71 to 80 of about 405,820 (287)

Regions with two amino acids in protein sequences: A step forward from homorepeats into the low complexity landscape

open access: yesComputational and Structural Biotechnology Journal, 2022
Low complexity regions (LCRs) differ in amino acid composition from the background provided by the corresponding proteomes. The simplest LCRs are homorepeats (or polyX), regions composed of mostly-one amino acid type.
Pablo Mier, Miguel A. Andrade-Navarro
doaj   +1 more source

Detecting Repetitions and Periodicities in Proteins by Tiling the Structural Space [PDF]

open access: yes, 2013
The notion of energy landscapes provides conceptual tools for understanding the complexities of protein folding and function. Energy Landscape Theory indicates that it is much easier to find sequences that satisfy the "Principle of Minimal Frustration ...
Espada, Rocío   +4 more
core   +2 more sources

Network divergence analysis identifies adaptive gene modules and two orthogonal vulnerability axes in pancreatic cancer

open access: yesMolecular Oncology, EarlyView.
Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson   +9 more
wiley   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

open access: yesMolecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau   +36 more
wiley   +1 more source

Graph theoretic methods for the analysis of structural relationships in biological macromolecules [PDF]

open access: yes, 2005
Subgraph isomorphism and maximum common subgraph isomorphism algorithms from graph theory provide an effective and an efficient way of identifying structural relationships between biological macromolecules.
Altschul   +72 more
core   +3 more sources

Hippo pathway at the crossroads of stemness and therapeutic resistance in breast cancer

open access: yesMolecular Oncology, EarlyView.
Dysregulation of the Hippo pathway drives nuclear accumulation of YAP/TAZ, activating stemness‐related transcriptional programs that sustain breast cancer stemness and fuel therapeutic resistance across subtypes, underscoring Hippo signaling as a targetable vulnerability. Figure created and edited with BioRender.com.
Giulia Schiavoni   +11 more
wiley   +1 more source

Determination of amino acid motifs present in the antigen-binding site of BoLA-DRB3 alleles in a Holstein population of La Pampa y su asociación con mastitis

open access: yesCiencia Veterinaria, 2017
The intensity of the immune response is regulated by amino acid motifs in antigen recognition sites (ARS) present in the pockets of Major Histocompatibility Complex molecules.
Laura Rosana Baltian   +2 more
doaj  

Structure-Function Analysis of Diacylglycerol Acyltransferase Sequences from 70 Organisms

open access: yesBMC Research Notes, 2011
Background Diacylglycerol acyltransferase families (DGATs) catalyze the final and rate-limiting step of triacylglycerol (TAG) biosynthesis in eukaryotic organisms.
Cao Heping
doaj   +1 more source

Bayesian models and algorithms for protein beta-sheet prediction [PDF]

open access: yes, 2009
Prediction of the three-dimensional structure greatly benefits from the information related to secondary structure, solvent accessibility, and non-local contacts that stabilize a protein's structure.
Altunbasak, Yucel   +5 more
core  

Evolutionarily Conserved Sequence Features Regulate the Formation of the FG Network at the Center of the Nuclear Pore Complex. [PDF]

open access: yes, 2015
The nuclear pore complex (NPC) is the portal for bidirectional transportation of cargos between the nucleus and the cytoplasm. While most of the structural elements of the NPC, i.e.
Lee, BL   +3 more
core   +2 more sources

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