Results 41 to 50 of about 321,458 (301)

Evolution of a cluster of innate immune genes (β-defensins) along the ancestral lines of chicken and zebra finch [PDF]

, 2010
BACKGROUND:Avian beta-defensins (AvBDs) represent a group of innate immune genes with broad antimicrobial activity. Within the chicken genome, previous work identified 14 AvBDs in a cluster on chromosome three.
Olof Hellgren, Robert Ekblom
core   +2 more sources

Mapping the evolution of mitochondrial complex I through structural variation

FEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin, Tingting Chen, James A. Letts   +2 more
wiley   +1 more source

Detecting functional divergence after gene duplication through evolutionary changes in posttranslational regulatory sequences. [PDF]

PLoS Computational Biology, 2014
Gene duplication is an important evolutionary mechanism that can result in functional divergence in paralogs due to neo-functionalization or sub-functionalization.
Alex N Nguyen Ba, Bob Strome, Jun Jie Hua, Jonathan Desmond, Isabelle Gagnon-Arsenault, Eric L Weiss, Christian R Landry, Alan M Moses   +7 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Maximum likelihood models and algorithms for gene tree evolution with duplications and losses

BMC Bioinformatics, 2011
Background The abundance of new genomic data provides the opportunity to map the location of gene duplication and loss events on a species phylogeny. The first methods for mapping gene duplications and losses were based on a parsimony criterion, finding ...
Burleigh Gordon J, Górecki Pawel, Eulenstein Oliver   +2 more
doaj   +1 more source

Duplicated genes evolve slower than singletons despite the initial rate increase

BMC Evolutionary Biology, 2004
Background Gene duplication is an important mechanism that can lead to the emergence of new functions during evolution. The impact of duplication on the mode of gene evolution has been the subject of several theoretical and empirical comparative-genomic ...
Koonin Eugene V, Wolf Yuri I, Jordan I King   +2 more
doaj   +1 more source

Overdosage of HNF1B Gene Associated With Annular Pancreas Detected in Neonate Patients With 17q12 Duplication

Frontiers in Genetics, 2021
The annular pancreas (AP) is a congenital anomaly of the pancreas that can cause acute abdominal pain and vomiting after birth. However, the genetic cause of AP is still unknown, and no study has reported AP in patients with 17q12 duplication. This study
Feifan Xiao, Feifan Xiao, Xiuyun Liu, Xiuyun Liu, Yulan Lu, Bingbing Wu, Renchao Liu, Bo Liu, Kai Yan, Huiyao Chen, Huiyao Chen, Guoqiang Cheng, Laishuan Wang, Qi Ni, Qi Ni, Gang Li, Ping Zhang, Xiaomin Peng, Yun Cao, Chun Shen, Huijun Wang, Wenhao Zhou, Wenhao Zhou, Wenhao Zhou   +23 more
doaj   +1 more source

Evolutionary ecology of opsin gene sequence, expression and repertoire. [PDF]

, 2017
Linking molecular evolution to biological function is a long-standing challenge in evolutionary biology. Some of the best examples of this involve opsins, the genes that encode the molecular basis of light reception.
Owens, Gregory L, Rennison, Diana J
core   +1 more source

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Structural properties of the reconciliation space and their applications in enumerating nearly-optimal reconciliations between a gene tree and a species tree [PDF]

, 2011
Introduction: A gene tree for a gene family is often discordant with the containing species tree because of its complex evolutionary course during which gene duplication, gene loss and incomplete lineage sorting events might occur.
Louxin Zhang, Taoyang Wu
core   +2 more sources