Results 91 to 100 of about 201,067 (302)

A Cellular Potts Model of the interplay of synchronization and aggregation [PDF]

PeerJ
We investigate the behavior of systems of cells with intracellular molecular oscillators (“clocks”) where cell-cell adhesion is mediated by differences in clock phase between neighbors.
Rose Una, Tilmann Glimm
doaj   +2 more sources

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Biological pattern formation on two-dimensional domains: A nonlinear bifurcation analysis

, 1997
A tissue interaction model for skin organ pattern formation is presented. Possible spatially patterned solutions on rectangular domains are investigated. Linear stability analysis suggests that the model can exhibit pattern formation.
Cruywagen, GC, Maini, P. K., Murray, JD, Murray, J. D., Maini, Philip, Maini, PK, Cruywagen, G. C.   +6 more
core   +1 more source

A conserved supergene locus controls colour pattern diversity in Heliconius butterflies [PDF]

, 2006
We studied whether similar developmental genetic mechanisms are involved in both convergent and divergent evolution. Mimetic insects are known for their diversity of patterns as well as their remarkable evolutionary convergence, and they have played an ...
Karen Barlow, Jesús Mavárez, Moisés Abanto, Humphray, S.J., Rogers, J., Papa, Riccardo, Abanto, M, Mallet, J, Chamberlain Nicola, Jiggins, CD, Bermingham, Eldredge, Mallet, J., Baxter, Simon, Papa, R, Mavárez, J, Beltrán, M, Humphray Sean J., Simon Baxter, Abanto, Moisés, Barlow Karen, ffrench-Constant, Richard, Baxter Simon, Jane Rogers, Joron Mathieu, Humphray Sean J, Abanto, M., Barlow, K, Mathieu Joron, ffrench-Constant, Richard H, Chamberlain, N., Beasley, H., McMillan, WO, Jiggins, C.D., H. ffrench-Constant Richard, Joron, M., Mavárez, J., McMillan, W.O., Papa Riccardo, McMillan, W Owen, Chris D Jiggins, Baxter, S., Mallet, James, Joron, M, Jiggins Chris D, Baxter, S, Chamberlain, Nicola, Helen Beasley, Rogers Jane, Richard H ffrench-Constant, Mallet James, Bermingham, E., Humphray, Sean J, Eldredge Bermingham, McMillan W. Owen, ffrench-Constant Richard H., Rogers, J, Jiggins Chris D., W Owen McMillan, Beltrán Margarita, Mavárez, Jesús, Margarita Beltrán, Beltrán, Margarita, PAPA R, Humphray, SJ, Mavárez Jesús, Riccardo Papa, Barlow, Karen, Jiggins, Chris D, Sean J Humphray, Beasley Helen, Joron, Mathieu, Bermingham, E, Beasley, Helen, Ffrench-Constant, R.H., ffrench-Constant, RH, Bermingham Eldredge, Rogers, Jane, Beasley, H, Abanto Moisés, Papa, R., Barlow, K., Chamberlain, N, Beltrán, M., James Mallet, Nicola Chamberlain   +84 more
core   +1 more source

Numerical framework and stability analysis of the Gray-Scott model

Open Computer Science
Turing models of pattern formation provide insight into an intriguing question in developmental biology, like how nature exhibits various structures, shapes, and organized patterns. These natural patterns include the pattern and texture on a desert dune,
Ali Ramzan, Ahmed Attique
doaj   +1 more source

Periodic pattern formation in developmental biology: a study of the mechanisms underlying somitogenesis

, 2005
Somitogenesis, the sequential formation of a periodic pattern along the antero-posterior axis of vertebrate embryos, is one of the most obvious examples of the segmental patterning processes that take place during embryogenesis and also one of the major unresolved events in developmental biology.
openaire   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Pattern formation and developmental mechanisms. Converging views of diverging pathways

, 1998
One of the great themes in modern developmental biology is the underlying unity of developmental mechanisms that govern pattern formation in all animals. Superficially, many classical paradigms of developmental patterning appear to be quite different. In
Kim, Stuart K., Fraser, Scott E.
core  

Evolutionarily conserved morphogenetic movements at the vertebrate head-trunk interface coordinate the transport and assembly of hypopharyngeal structures

, 2014
International audienceThe vertebrate head-trunk interface (occipital region) has been heavily remodelled during evolution, and its development is still poorly understood.
Walters, Esther H, Lewis, AK, Dietrich, Susanne, El-Hanfy, Amira S., Gandesha, Saniel, Wotton, Karl R., Jorge, EC, Sharpe, Colin, Lawson, Jennifer A, Dietrich, S, Sobreira, Débora Rodrigues, Sharpe, C, Lewis, A. Kelsey, Kardon, Gabrielle, Lawson, JA, Lours-Calet, C, Jorge, Erika C., Alvares, Lucia Elvira, Sobreira, Debora R., Lawson, Jennifer A., Alvares, LE, Alvares, Lucia E, El-Hanfy, Amira S, Kelsey Lewis, A., Kelsey Lewis, A, Jorge, Erika C, Lours-Calet, Corinne, Sobreira, DR, Tada, M, Walters, EH, Alvares, Lucia E., Kardon, G, El-Hanfy, AS, Wotton, KR, Wotton, Karl R, Walters, Esther H., Tada, Masazumi, Gandesha, S   +37 more
core   +1 more source

Towards a bioinformatics of patterning: a computational approach to understanding regulative morphogenesis

Biology Open, 2012
Summary The mechanisms underlying the regenerative abilities of certain model species are of central importance to the basic understanding of pattern formation.
Daniel Lobo, Taylor J. Malone, Michael Levin   +2 more
doaj   +1 more source