TY - JOUR
T1 - Dissociation in a polymerization model of homochirality
AU - Brandenburg, A.
AU - Andersen, A. C.
AU - Nilsson, M.
PY - 2005/12/1
Y1 - 2005/12/1
N2 - A fully self-contained model of homochirality is presented that contains the effects of both polymerization and dissociation. The dissociation fragments are assumed to replenish the substrate from which new monomers can grow and undergo new polymerization. The mean length of isotactic polymers is found to grow slowly with the normalized total number of corresponding building blocks. Alternatively, if one assumes that the dissociation fragments themselves can polymerize further, then this corresponds to a strong source of short polymers, and an unrealistically short average length of only 3. By contrast, without dissociation, isotactic polymers becomes infinitely long.
AB - A fully self-contained model of homochirality is presented that contains the effects of both polymerization and dissociation. The dissociation fragments are assumed to replenish the substrate from which new monomers can grow and undergo new polymerization. The mean length of isotactic polymers is found to grow slowly with the normalized total number of corresponding building blocks. Alternatively, if one assumes that the dissociation fragments themselves can polymerize further, then this corresponds to a strong source of short polymers, and an unrealistically short average length of only 3. By contrast, without dissociation, isotactic polymers becomes infinitely long.
KW - DNA polymerization
KW - Enantiomeric cross-inhibition
KW - Origin of homochirality Revision: 1.41
UR - http://www.scopus.com/inward/record.url?scp=27644461075&partnerID=8YFLogxK
U2 - 10.1007/s11084-005-5757-y
DO - 10.1007/s11084-005-5757-y
M3 - Journal article
C2 - 16254689
AN - SCOPUS:27644461075
SN - 0169-6149
VL - 35
SP - 507
EP - 521
JO - Origins of Life and Evolution of Biospheres
JF - Origins of Life and Evolution of Biospheres
IS - 6
ER -