Results 1 to 10 of about 2,774,159 (348)

Multiple rereads of single proteins at single–amino acid resolution using nanopores

open access: yesScience, 2021
Description Reading amino acids by nanopore Nanopore technology enables sensing of minute chemical changes at the single-molecule level by detecting differences in an ion current as molecules are drawn through a membrane-embedded pore. The sensitivity is
H. Brinkerhoff   +4 more
semanticscholar   +1 more source

An Alternative Model of Amino Acid Replacement [PDF]

open access: yes, 2004
The observed correlations between pairs of homologous protein sequences are typically explained in terms of a Markovian dynamic of amino acid substitution.
Altschul   +27 more
core   +3 more sources

Characterization of Trypanosoma brucei gambiense variant surface glycoprotein LiTat 1.5 [PDF]

open access: yes, 2012
At present, all available diagnostic antibody detection tests for Trypanosoma brucei gambiense human African trypanosomiasis are based on predominant variant surface glycoproteins (VSGs), such as VSG LiTat 1.5. During investigations aiming at replacement
Büscher, P.   +4 more
core   +1 more source

Amino acid metabolism conflicts with protein diversity [PDF]

open access: yes, 2014
The twenty protein coding amino acids are found in proteomes with different relative abundances. The most abundant amino acid, leucine, is nearly an order of magnitude more prevalent than the least abundant amino acid, cysteine.
Alonso, Leonardo G.   +6 more
core   +4 more sources

Site-Directed Mutagenesis and Site-Specific Binding Analysis of Calmodulin (CaM) [PDF]

open access: yes, 2017
Calcium signaling is a major regulatory system in cells and a crucial part of cell biology. An important element in the decoding of intracellular calcium concentration into downstream processes is the ubiquitous and highly conserved calcium binding ...
Dokic, Yelena
core   +1 more source

The signature motif of the Saccharomyces cerevisiae Pif1 DNA helicase is essential in vivo for mitochondrial and nuclear functions and in vitro for ATPase activity [PDF]

open access: yes, 2018
Pif1 family DNA helicases are conserved from bacteria to humans and have critical and diverse functions in vivo that promote genome integrity. Pif1 family helicases share a 23 amino acid region, called the Pif1 signature motif (SM) that is unique to this
Galletto, Roberto   +3 more
core   +2 more sources

OLGA: fast computation of generation probabilities of B- and T-cell receptor amino acid sequences and motifs [PDF]

open access: yesbioRxiv, 2018
Motivation High-throughput sequencing of large immune repertoires has enabled the development of methods to predict the probability of generation by V(D)J recombination of T- and B-cell receptors of any specific nucleotide sequence.
Zachary M. Sethna   +4 more
semanticscholar   +1 more source

Aminopeptidase C of Aspergillus niger is a Novel Phenylalanine Aminopeptidase [PDF]

open access: yes, 2003
A novel enzyme with a specific phenylalanine aminopeptidase activity (ApsC) from Aspergillus niger (CBS 120.49) has been characterized. The derived amino acid sequence is not similar to any previously characterized aminopeptidase sequence but does share ...
Basten, E.J.W.   +2 more
core   +4 more sources

A FAMILY OF CATION ATPASE-LIKE MOLECULES FROM PLASMODIUM-FALCIPARUM [PDF]

open access: yes, 1993
. We report the nucleotide and derived amino acid sequence of the ATPase 1 gene from Plasmodium falciparum. The amino acid sequence shares homology with the family of "P-type cation transloeating ATPases in conserved regions important for nucleotide
Cowan, G   +5 more
core   +2 more sources

Cloning and characterisation of chlorophyll synthase from Avena sativa [PDF]

open access: yes, 2001
The chlorophyll synthase gene from oat (Avena sativa) was cloned and expressed in Escherichia coli. The deduced amino acid sequence consists of 378 amino acids including a presequence, of 46 amino acids.
Kögel, Julia   +4 more
core   +1 more source

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