Results 31 to 40 of about 80,959 (317)

A tale of two symmetrical tails: Structural and functional characteristics of palindromes in proteins

BMC Bioinformatics, 2008
Background It has been previously shown that palindromic sequences are frequently observed in proteins. However, our knowledge about their evolutionary origin and their possible importance is incomplete.
Pezeshk Hamid, Sadeghi Mehdi, Arab Shahriar, Katanforoush Ali, Kargar Mehdi, Sheari Armita, Eslahchi Changiz, Marashi Sayed-Amir   +7 more
doaj   +1 more source

A single parS sequence from the cluster of four sites closest to oriC is necessary and sufficient for proper chromosome segregation in Pseudomonas aeruginosa. [PDF]

PLoS ONE, 2015
Among the mechanisms that control chromosome segregation in bacteria are highly-conserved partitioning systems comprising three components: ParA protein (a deviant Walker-type ATPase), ParB protein (a DNA-binding element) and multiple cis-acting ...
Paulina Jecz, Aneta A Bartosik, Krzysztof Glabski, Grazyna Jagura-Burdzy   +3 more
doaj   +1 more source

PCR-mediated One-day Synthesis of Guide RNA for the CRISPR/Cas9 System

Bio-Protocol, 2021
Nowadays, CRISPR (clustered regularly interspaced short palindromic repeats) and the CRISPR-associated protein (Cas9) system play a major role in genome editing. To target the desired sequence of the genome successfully, guide RNA (gRNA) is indispensable
Naim Hassan, Farhana Easmin, Keisuke Ekino , Satoshi Harashima   +3 more
doaj   +1 more source

A note on palindromic length of Sturmian sequences [PDF]

, 2018
Frid, Puzynina and Zamboni (2013) defined the palindromic length of a finite word $w$ as the minimal number of palindromes whose concatenation is equal to $w$. For an infinite word $u$ we study $PL_{u}$, that is, the function that assigns to each positive integer $n$, the maximal palindromic length of factors of length $n$ in $u$. Recently, Frid (2018)
Petr Ambrož, Edita Pelantová
openalex   +3 more sources

Position and sequence conservation in Amniota of polymorphic enhancer HS1.2 within the palindrome of IgH 3'Regulatory Region

BMC Evolutionary Biology, 2011
Background The Immunoglobulin heavy chain (IgH) 3' Regulatory Region (3'RR), located at the 3' of the constant alpha gene, plays a crucial role in immunoglobulin production.
Rocchi Mariano, Giambra Vincenzo, Scascitelli Moira, D'Addabbo Pietro, Frezza Domenico   +4 more
doaj   +1 more source

Statistics on Lattice Walks and q-Lassalle Numbers [PDF]

Discrete Mathematics & Theoretical Computer Science, 2015
This paper contains two results. First, I propose a $q$-generalization of a certain sequence of positive integers, related to Catalan numbers, introduced by Zeilberger, see Lassalle (2010).
Lenny Tevlin
doaj   +1 more source

A versatile palindromic amphipathic repeat coding sequence horizontally distributed among diverse bacterial and eucaryotic microbes

BMC Genomics, 2010
Background Intragenic tandem repeats occur throughout all domains of life and impart functional and structural variability to diverse translation products.
Glass John I, Yooseph Shibu, Foecking Mark F, Röske Kerstin, Calcutt Michael J, Wise Kim S   +5 more
doaj   +1 more source

Clinical variants in Caenorhabditis elegans expressing human STXBP1 reveal a novel class of pathogenic variants and classify variants of uncertain significance

Genetics in Medicine Open, 2023
Purpose: Modeling disease variants in animals is useful for drug discovery, understanding disease pathology, and classifying variants of uncertain significance (VUS) as pathogenic or benign.
Christopher E. Hopkins, Kathryn McCormick, Trisha Brock, Matthew Wood, Sarah Ruggiero, Kolt Mcbride, Christine Kim, Jennifer A. Lawson, Ingo Helbig, Matthew N. Bainbridge   +9 more
doaj   +1 more source

Languages invariant under more symmetries: overlapping factors versus palindromic richness

, 2012
Factor complexity $\mathcal{C}$ and palindromic complexity $\mathcal{P}$ of infinite words with language closed under reversal are known to be related by the inequality $\mathcal{P}(n) + \mathcal{P}(n+1) \leq 2 + \mathcal{C}(n+1)-\mathcal{C}(n)$ for any $
Allouche, Allouche, Balková, Balková, Baláži, Blondin Massé, Brlek, Brlek, Brlek, Bucci, Bucci, Cassaigne, Damanik, de Luca, Droubay, Edita Pelantová, Fogg, Glen, Hof, Pelantová, Pelantová, Starosta, Štěpán Starosta   +22 more
core   +1 more source

Enumeration and Structure of Trapezoidal Words [PDF]

, 2012
Trapezoidal words are words having at most $n+1$ distinct factors of length $n$ for every $n\ge 0$. They therefore encompass finite Sturmian words. We give combinatorial characterizations of trapezoidal words and exhibit a formula for their enumeration ...
Alessandro De Luca, Brlek, Bucci, Carpi, Carpi, Coven, de~Luca, de~Luca, de~Luca, de~Luca, de~Luca, de~Luca, D’Alessandro, Fici, Fici, Gabriele Fici, Glen, Ilie, Lipatov, Lothaire, Michelangelo Bucci, Mignosi   +21 more
core   +1 more source