Third, many ICEs and prophages are flanked by directly repeated attachment sequences, attP-L and attP-R, that are generated as a consequence of the homologous-recombination event mediated by the related prophage and ICE site-specific integrases.
To be able to utilise resources in the environment, seals are forced to move between feeding areas and suitable shore or ice sites for hauling out and breeding [18].
This is consistent with our ice-binding model (as discussed below) showing that Ala91 is close to the ice-binding site and the ice surface.
The reason that hAFP did not evolve a large flat ice-binding site with perfect ice lattice match may be due to the involvement of the Ca2+ cofactor, which provides sufficient binding force through coordination of water in the ice lattice.
Dr. Robson Bonnichsen, an expert on early Americans who is not directly involved in the excavation, said it could even be "the single most significant Ice Age site in North America" as a place bearing tantalizing evidence for "understanding the earliest prehistory of the Americas".
The cDNA is 1292 bp, lacks a putative ICE cut site, and codes for a deduced peptide of 29·4 kDa with a pI of 5·1.
These ratios can provide constraints on the past thickness of the firn layer at the ice core site and on the magnitude of past rapid temperature variations when combined with measured 15N/14N.
This is not necessarily in agreement with the cortex being the probable ice nucleation site in peach stems (Wisniewski et al. 1997).
In our series we observed a close spatial relationship of NECs with the newly formed vessels surrounding the organizing ICE injury site.
To examine further variations in integration sites, we compared the sequences of ICE integration sites and duplicated junction motifs in all genome sequences with recognizable left and/or right ICE Hptfs3 and ICE Hptfs4 junctions.
Since the ice-binding site is stabilized in solution, there should not be much entropy loss when it binds to the ice surface.
