Abstract
Realistic models of α-helix proteins are composed of three covalently-bonded strands, each of which is made of hydrogen-bonded peptide units. The modulational instability analysis of such complex molecular systems is carried out in this work. We show that the exciton-vibron coupling parameter contributes to the explosion and expansion of instability regions. The right choice of the modulational instability parameters leads to the formation of excitonic modulated pulse-like structures. It is argued that covalent bonds are compressed during the process of energy transport, while hydrogen bond oscillations display regular trains of breather-like objects. We also argue that the probable way of energy transport, from modulational instability, is through hydrogen bonds.
| Original language | English |
|---|---|
| Article number | 374 |
| Journal | European Physical Journal B |
| Volume | 86 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - Sep 1 2013 |
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All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Nonlinear wave trains in three-strand α-helical protein models. / Tabi, C. B.; Mimshe Fewu, J. C.; Ekobena Fouda, H. P.; Mohamadou, A.; Kofané, T. C.
In: European Physical Journal B, Vol. 86, No. 9, 374, 01.09.2013.Research output: Contribution to journal › Article
TY - JOUR
T1 - Nonlinear wave trains in three-strand α-helical protein models
AU - Tabi, C. B.
AU - Mimshe Fewu, J. C.
AU - Ekobena Fouda, H. P.
AU - Mohamadou, A.
AU - Kofané, T. C.
PY - 2013/9/1
Y1 - 2013/9/1
N2 - Realistic models of α-helix proteins are composed of three covalently-bonded strands, each of which is made of hydrogen-bonded peptide units. The modulational instability analysis of such complex molecular systems is carried out in this work. We show that the exciton-vibron coupling parameter contributes to the explosion and expansion of instability regions. The right choice of the modulational instability parameters leads to the formation of excitonic modulated pulse-like structures. It is argued that covalent bonds are compressed during the process of energy transport, while hydrogen bond oscillations display regular trains of breather-like objects. We also argue that the probable way of energy transport, from modulational instability, is through hydrogen bonds.
AB - Realistic models of α-helix proteins are composed of three covalently-bonded strands, each of which is made of hydrogen-bonded peptide units. The modulational instability analysis of such complex molecular systems is carried out in this work. We show that the exciton-vibron coupling parameter contributes to the explosion and expansion of instability regions. The right choice of the modulational instability parameters leads to the formation of excitonic modulated pulse-like structures. It is argued that covalent bonds are compressed during the process of energy transport, while hydrogen bond oscillations display regular trains of breather-like objects. We also argue that the probable way of energy transport, from modulational instability, is through hydrogen bonds.
UR - http://www.scopus.com/inward/record.url?scp=84884510724&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884510724&partnerID=8YFLogxK
U2 - 10.1140/epjb/e2013-40467-6
DO - 10.1140/epjb/e2013-40467-6
M3 - Article
VL - 86
JO - European Physical Journal B
JF - European Physical Journal B
SN - 1434-6028
IS - 9
M1 - 374
ER -