| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T1 |
0-131 |
Sentence |
denotes |
Human eosinophil major basic protein, a mediator of allergic inflammation, is expressed by alternative splicing from two promoters. |
| T2 |
132-269 |
Sentence |
denotes |
Human eosinophil major basic protein (MBP) is one of the principal mediators of injury to parasites and tissues in allergic inflammation. |
| T3 |
270-389 |
Sentence |
denotes |
MBP is stored in eosinophil crystalloid granules and released with other granule constituents during eosinophil action. |
| T4 |
390-565 |
Sentence |
denotes |
Previous studies have identified an MBP gene promoter that generates a 1.0 kb mRNA transcript encoding MBP preproprotein which undergoes processing to the mature storage form. |
| T5 |
566-725 |
Sentence |
denotes |
To investigate how the MBP gene is regulated, we have examined the identity and levels of the MBP transcripts both in precursor cells and in blood eosinophils. |
| T6 |
726-869 |
Sentence |
denotes |
It was found that the gene was expressed from two upstream promoters, a distal promoter P1 in addition to the previously described promoter P2. |
| T7 |
870-1058 |
Sentence |
denotes |
Evidence for the second promoter was initially provided by isolation from a human HL-60 leukaemic cell cDNA library of a novel 1.6 kb MBP cDNA that was distinct from the known 1.0 kb cDNA. |
| T8 |
1059-1241 |
Sentence |
denotes |
The complete nucleotide sequence of the 1.6 kb cDNA was determined, and showed that the two cDNAs had identical coding and 3' untranslated regions but differed in their 5' sequences. |
| T9 |
1242-1423 |
Sentence |
denotes |
By isolating and sequencing MBP genomic clones from an arrayed chromosome 11 library, it was demonstrated that the MBP gene is composed of nine upstream exons and five coding exons. |
| T10 |
1424-1587 |
Sentence |
denotes |
The 1.6 and 1.0 kb cDNAs arise by differential splicing of alternate MBP transcripts from promoters P1 and P2 respectively, located 32 kb apart in the genomic DNA. |
| T11 |
1588-1711 |
Sentence |
denotes |
Primer extension analysis identified two transcription start sites at P1, neither associated with a typical TATA box motif. |
| T12 |
1712-1906 |
Sentence |
denotes |
Northern blotting and reverse-transcription PCR analysis showed that the 1.0 kb mRNA was present at higher levels than the 1.6 kb species in immature cells including HL-60 and bone-marrow cells. |
| T13 |
1907-2007 |
Sentence |
denotes |
By contrast, low levels of 1.6 kb mRNA transcripts predominated in differentiated blood eosinophils. |
| T14 |
2008-2157 |
Sentence |
denotes |
The results are compatible with differential use of P1 and P2 promoters as a mechanism for regulation of MBP expression during eosinophil maturation. |
| T1 |
0-131 |
Sentence |
denotes |
Human eosinophil major basic protein, a mediator of allergic inflammation, is expressed by alternative splicing from two promoters. |
| T2 |
132-269 |
Sentence |
denotes |
Human eosinophil major basic protein (MBP) is one of the principal mediators of injury to parasites and tissues in allergic inflammation. |
| T3 |
270-389 |
Sentence |
denotes |
MBP is stored in eosinophil crystalloid granules and released with other granule constituents during eosinophil action. |
| T4 |
390-565 |
Sentence |
denotes |
Previous studies have identified an MBP gene promoter that generates a 1.0 kb mRNA transcript encoding MBP preproprotein which undergoes processing to the mature storage form. |
| T5 |
566-725 |
Sentence |
denotes |
To investigate how the MBP gene is regulated, we have examined the identity and levels of the MBP transcripts both in precursor cells and in blood eosinophils. |
| T6 |
726-869 |
Sentence |
denotes |
It was found that the gene was expressed from two upstream promoters, a distal promoter P1 in addition to the previously described promoter P2. |
| T7 |
870-1058 |
Sentence |
denotes |
Evidence for the second promoter was initially provided by isolation from a human HL-60 leukaemic cell cDNA library of a novel 1.6 kb MBP cDNA that was distinct from the known 1.0 kb cDNA. |
| T8 |
1059-1241 |
Sentence |
denotes |
The complete nucleotide sequence of the 1.6 kb cDNA was determined, and showed that the two cDNAs had identical coding and 3' untranslated regions but differed in their 5' sequences. |
| T9 |
1242-1423 |
Sentence |
denotes |
By isolating and sequencing MBP genomic clones from an arrayed chromosome 11 library, it was demonstrated that the MBP gene is composed of nine upstream exons and five coding exons. |
| T10 |
1424-1587 |
Sentence |
denotes |
The 1.6 and 1.0 kb cDNAs arise by differential splicing of alternate MBP transcripts from promoters P1 and P2 respectively, located 32 kb apart in the genomic DNA. |
| T11 |
1588-1711 |
Sentence |
denotes |
Primer extension analysis identified two transcription start sites at P1, neither associated with a typical TATA box motif. |
| T12 |
1712-1906 |
Sentence |
denotes |
Northern blotting and reverse-transcription PCR analysis showed that the 1.0 kb mRNA was present at higher levels than the 1.6 kb species in immature cells including HL-60 and bone-marrow cells. |
| T13 |
1907-2007 |
Sentence |
denotes |
By contrast, low levels of 1.6 kb mRNA transcripts predominated in differentiated blood eosinophils. |
| T14 |
2008-2157 |
Sentence |
denotes |
The results are compatible with differential use of P1 and P2 promoters as a mechanism for regulation of MBP expression during eosinophil maturation. |