Human cystathionine β-synthase: gene organization and expression of different 5′ alternative splicing
Human cystathionine β-synthase: gene organization and expression of different 5′ alternative splicing
复制标题
人胱硫醚β-合酶:不同5选择性剪接的基因组织和表达
作者:
J. Chassé;V. Paul;Raphael Escañez;P. Kamoun;J. London
The human cystathionine β-synthase (CBS) gene spans in excess of 30 kb and consists of 19 exons, with three different 5′ untranslated regions including three different exons 1 (exons 1 a, b, and c). Exon la and 1b are 390 bp apart from each other and are linked to exon 2 in cDNA « a » and cDNA « b ». Exon 1c, which linked to exon 5 in cDNA « c », is 7 kb apart from exon 1b. All splice sites conform to the GT/AG rule, including those from exon la or 1b to exon 2 and from exon 1c to exon 5. Upstream of exons la and 1b, we found two putative promoter sequences with high C + G nucleotide content, one CAAT box at —70 nucleotides (for exon lb), no TATA box, several Sp1 binding regulatory consensus sequences, and some other regulatory sequences. Human adult and fetal Northern blots hybridized with total cDNA containing exon 1b, or specific probes from exons 1 (b and c) showed mRNAs of 2.5 kb, 2.7 kb, and 3.7 kb. These results suggest that the mRNAs containing the different exons 1 are under the control of different promoters.
DOI:
10.1016/s0021-9258(19)49931-6
发表时间:
1992-06
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
M. Swaroop;K. Bradley;T. Ohura;T. Tahara;M. Roper;L. Rosenberg;J. Kraus
通讯作者:
M. Swaroop;K. Bradley;T. Ohura;T. Tahara;M. Roper;L. Rosenberg;J. Kraus
影响因子:
3.9
作者:
ROPER, MD;KRAUS, JP
通讯作者:
KRAUS, JP
DOI:
10.1016/s0021-9258(17)43702-1
发表时间:
1984-01
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
F. Skovby;J. Kraus;L. Rosenberg
通讯作者:
F. Skovby;J. Kraus;L. Rosenberg