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2016 ; 218
(ä): 42-46
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Intra-molecular lysine-arginine derived advanced glycation end-product
cross-linking in Type I collagen: A molecular dynamics simulation study
#MMPMID27648753
Collier TA
; Nash A
; Birch HL
; de Leeuw NH
Biophys Chem
2016[Nov]; 218
(ä): 42-46
PMID27648753
show ga
Covalently cross-linked advanced glycation end products (AGE) are among the major
post-translational modifications to proteins as a result of non-enzymatic
glycation. The formation of AGEs has been shown to have adverse effects on the
properties of the collagenous tissue; they are even linked to a number of age
related disorders. Little is known about the sites at which these AGEs form or
why certain sites within the collagen are energetically more favourable than
others. In this study we have used a proven fully atomistic molecular dynamics
approach to identify six sites where the formation of the intra-molecular
3-deoxyglucosone-derived imidazolium cross-link (DOGDIC) is energetically
favourable. We have also conducted a comparison of these positions with those of
the more abundant glucosepane cross-link, to determine any site preference. We
show that when we consider both lysine and arginine AGEs, they exhibit a
prevalence to form within the gap region of the collagen fibril.
|Animals
[MESH]
|Arginine
[MESH]
|Binding Sites
[MESH]
|Collagen Type I/*chemistry
[MESH]
|Cross-Linking Reagents/*chemistry
[MESH]
|Deoxyglucose/analogs & derivatives
[MESH]
|Glycation End Products, Advanced/*chemistry
[MESH]