| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T1 |
0-55 |
Sentence |
denotes |
Characterization of the human Forssman synthetase gene. |
| T2 |
56-141 |
Sentence |
denotes |
An evolving association between glycolipid synthesis and host-microbial interactions. |
| T3 |
142-266 |
Sentence |
denotes |
Differences in glycolipid expression between species contribute to the tropism of many infectious pathogens for their hosts. |
| T4 |
267-664 |
Sentence |
denotes |
For example, we demonstrate that cultured human and monkey urinary epithelial cells fail to bind a canine Escherichia coli uropathogenic isolate; however, transfection of these cells with the canine Forssman synthetase (FS) cDNA enables abundant adherence by the same pathogen, indicating that addition of a single sugar residue to a glycolipid receptor has marked effects on microbial attachment. |
| T5 |
665-811 |
Sentence |
denotes |
Given the contribution of glycolipids to host-microbial interactions, we sought to determine why human tissues do not express Forssman glycolipid. |
| T6 |
812-913 |
Sentence |
denotes |
Query of the GenBank(TM) data base yielded a human sequence with high identity to the canine FS cDNA. |
| T7 |
914-1045 |
Sentence |
denotes |
Reverse transcription polymerase chain reaction and Northern blotting demonstrated the presence of FS mRNA in all tissues examined. |
| T8 |
1046-1207 |
Sentence |
denotes |
A human FS cDNA was characterized, revealing identities with the canine FS gene of 86 and 83% at the nucleotide and predicted amino acid sequences, respectively. |
| T9 |
1208-1339 |
Sentence |
denotes |
In contrast to the canine FS cDNA, transfection of COS-1 cells with the human FS cDNA resulted in no detectable FS enzyme activity. |
| T10 |
1340-1468 |
Sentence |
denotes |
These results suggest that variability in glycolipid synthesis between species is an important determinant of microbial tropism. |
| T11 |
1469-1590 |
Sentence |
denotes |
Evolutionary pressure from pathogenic organisms may have contributed to diversity in glycolipid expression among species. |