Id |
Subject |
Object |
Predicate |
Lexical cue |
TextSentencer_T1 |
0-112 |
Sentence |
denotes |
Two additional cases of osteogenesis imperfecta with substitutions for glycine in the alpha 2(I) collagen chain. |
TextSentencer_T2 |
113-172 |
Sentence |
denotes |
A regional model relating mutation location with phenotype. |
TextSentencer_T3 |
173-395 |
Sentence |
denotes |
The relationship between the clinical severity of osteogenesis imperfecta (OI) and the location and type of amino acid substitution in type I collagen is not identical for mutations in the alpha 1(I) and alpha 2(I) chains. |
TextSentencer_T4 |
396-566 |
Sentence |
denotes |
Furthermore, the alpha 2(I) chain, once thought to be associated with moderate forms of OI, has now been associated with approximately as many lethal as non-lethal cases. |
TextSentencer_T5 |
567-739 |
Sentence |
denotes |
We describe two novel substitutions for glycine in the alpha 2(I) chain, one associated with a lethal phenotype in twins and the other with a moderate non-lethal phenotype. |
TextSentencer_T6 |
740-892 |
Sentence |
denotes |
The type I collagen of all probands was characterized electrophoretically by two populations of alpha chains, one normal and one with delayed migration. |
TextSentencer_T7 |
893-1011 |
Sentence |
denotes |
Cyanogen bromide peptides of the overmodified alpha 1(I) chains revealed delayed migration of all peptides except CB6. |
TextSentencer_T8 |
1012-1153 |
Sentence |
denotes |
The indicated target region of alpha 1(I) and alpha 2(I) cDNA of the probands was analyzed by RNA-DNA hybrid analysis with RNase A digestion. |
TextSentencer_T9 |
1154-1241 |
Sentence |
denotes |
All probands had mismatches in the region of alpha 2(I) coding for amino acids 642-912. |
TextSentencer_T10 |
1242-1403 |
Sentence |
denotes |
The lethal phenotype was associated with a G-->A mutation, resulting in Gly706-->serine; the non-lethal mutation was a G-->T change resulting in Gly676-->valine. |
TextSentencer_T11 |
1404-1487 |
Sentence |
denotes |
Both mutations occurred de novo in the probands; parental leukocyte DNA was normal. |
TextSentencer_T12 |
1488-1743 |
Sentence |
denotes |
In conjunction with the previously described exon deletions and point mutations in alpha 2(I), these mutations define five alternating non-lethal/lethal regions along the chain and support a regional, as opposed to a gradient, model of OI pathophysiology. |
TextSentencer_T13 |
1744-1853 |
Sentence |
denotes |
These mutations in particular help to define a lethal/non-lethal junction at about alpha 2(I) amino acid 700. |
T1 |
0-112 |
Sentence |
denotes |
Two additional cases of osteogenesis imperfecta with substitutions for glycine in the alpha 2(I) collagen chain. |
T2 |
113-172 |
Sentence |
denotes |
A regional model relating mutation location with phenotype. |
T3 |
173-395 |
Sentence |
denotes |
The relationship between the clinical severity of osteogenesis imperfecta (OI) and the location and type of amino acid substitution in type I collagen is not identical for mutations in the alpha 1(I) and alpha 2(I) chains. |
T4 |
396-566 |
Sentence |
denotes |
Furthermore, the alpha 2(I) chain, once thought to be associated with moderate forms of OI, has now been associated with approximately as many lethal as non-lethal cases. |
T5 |
567-739 |
Sentence |
denotes |
We describe two novel substitutions for glycine in the alpha 2(I) chain, one associated with a lethal phenotype in twins and the other with a moderate non-lethal phenotype. |
T6 |
740-892 |
Sentence |
denotes |
The type I collagen of all probands was characterized electrophoretically by two populations of alpha chains, one normal and one with delayed migration. |
T7 |
893-1011 |
Sentence |
denotes |
Cyanogen bromide peptides of the overmodified alpha 1(I) chains revealed delayed migration of all peptides except CB6. |
T8 |
1012-1153 |
Sentence |
denotes |
The indicated target region of alpha 1(I) and alpha 2(I) cDNA of the probands was analyzed by RNA-DNA hybrid analysis with RNase A digestion. |
T9 |
1154-1241 |
Sentence |
denotes |
All probands had mismatches in the region of alpha 2(I) coding for amino acids 642-912. |
T10 |
1242-1403 |
Sentence |
denotes |
The lethal phenotype was associated with a G-->A mutation, resulting in Gly706-->serine; the non-lethal mutation was a G-->T change resulting in Gly676-->valine. |
T11 |
1404-1487 |
Sentence |
denotes |
Both mutations occurred de novo in the probands; parental leukocyte DNA was normal. |
T12 |
1488-1743 |
Sentence |
denotes |
In conjunction with the previously described exon deletions and point mutations in alpha 2(I), these mutations define five alternating non-lethal/lethal regions along the chain and support a regional, as opposed to a gradient, model of OI pathophysiology. |
T13 |
1744-1853 |
Sentence |
denotes |
These mutations in particular help to define a lethal/non-lethal junction at about alpha 2(I) amino acid 700. |