Results 11 to 20 of about 257,506 (253)

Self-Organizing Map for Characterizing Heterogeneous Nucleotide and Amino Acid Sequence Motifs [PDF]

open access: yesComputation, 2017
A self-organizing map (SOM) is an artificial neural network algorithm that can learn from the training data consisting of objects expressed as vectors and perform non-hierarchical clustering to represent input vectors into discretized clusters, with ...
Xuhua Xia
doaj   +2 more sources

Reinvestigating the Photoprotection Properties of a Mycosporine Amino Acid Motif [PDF]

open access: yesFrontiers in Chemistry, 2020
With the growing concern regarding commercially available ultraviolet (UV) filters damaging the environment, there is an urgent need to discover new UV filters. A family of molecules called mycosporines and mycosporine-like amino acids (referred to as MAAs collectively) are synthesized by cyanobacteria, fungi and algae and act as the natural UV filters
Abigail L. Whittock   +10 more
openaire   +5 more sources

Unravelling the Photoprotection Properties of Mycosporine Amino Acid Motifs [PDF]

open access: yesThe Journal of Physical Chemistry Letters, 2018
Photoprotection from harmful ultraviolet (UV) radiation exposure is a key problem in modern society. Mycosporine-like amino acids found in fungi, cyanobacteria, macroalgae, phytoplankton, and animals are already presenting a promising form of natural photoprotection in sunscreen formulations.
Jack M. Woolley   +5 more
openaire   +3 more sources

Fluorine containing amino acids: synthesis and peptide coupling of amino acids containing the all-cis tetrafluorocyclohexyl motif [PDF]

open access: yesOrganic & Biomolecular Chemistry, 2015
A synthesis of amino acids carrying the all-cis tetrafluorocyclohexyl ring moiety is demonstrated and protection/deprotection elaborations are illustrated which show that this facially polarised ring motif may be incorporated into peptides.
Ayoup , Mohammed Salah   +3 more
openaire   +4 more sources

Stereoretentive cross-coupling of chiral amino acid chlorides and hydrocarbons through mechanistically controlled Ni/Ir photoredox catalysis

open access: yesNature Communications, 2022
Chiral α-amino ketones are privileged motifs in bioorganic and medicinal chemistry. Here, the authors develop an efficient method to synthesize these structures via stereoretentive direct cross-coupling of amino acid chlorides with simple aliphatic ...
Geun Seok Lee   +2 more
doaj   +1 more source

Word decoding of protein amino Acid sequences with availability analysis: a linguistic approach.

open access: yesPLoS ONE, 2012
The amino acid sequences of proteins determine their three-dimensional structures and functions. However, how sequence information is related to structures and functions is still enigmatic.
Kenta Motomura   +5 more
doaj   +1 more source

Motivated Proteins: A web application for studying small three-dimensional protein motifs

open access: yesBMC Bioinformatics, 2009
Background Small loop-shaped motifs are common constituents of the three-dimensional structure of proteins. Typically they comprise between three and seven amino acid residues, and are defined by a combination of dihedral angles and hydrogen bonding ...
Milner-White E James, Leader David P
doaj   +1 more source

The mining of toxin-like polypeptides from EST database by single residue distribution analysis

open access: yesBMC Genomics, 2011
Background Novel high throughput sequencing technologies require permanent development of bioinformatics data processing methods. Among them, rapid and reliable identification of encoded proteins plays a pivotal role.
Grishin Eugene, Kozlov Sergey
doaj   +1 more source

Phenotypic screening of signaling motifs that efficiently induce cell proliferation

open access: yesScientific Reports, 2023
Since cell proliferation is one of the fundamental cell fates, artificial control of cell proliferation based on a receptor-engineering approach is increasingly important in therapeutic and industrial applications.
Kirato Umene   +2 more
doaj   +1 more source

SLiMFinder: a probabilistic method for identifying over-represented, convergently evolved, short linear motifs in proteins.

open access: yesPLoS ONE, 2007
BackgroundShort linear motifs (SLiMs) in proteins are functional microdomains of fundamental importance in many biological systems. SLiMs typically consist of a 3 to 10 amino acid stretch of the primary protein sequence, of which as few as two sites may ...
Richard J Edwards   +3 more
doaj   +1 more source

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