Examination of Ferrochelatase Mutations That Cause Erythropoietic Protoporphyria
Examination of Ferrochelatase Mutations That Cause Erythropoietic Protoporphyria
复制标题
导致红细胞生成性原卟啉症的铁螯合酶突变的检查
DOI:
--
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
H. Dailey
中科院分区:
文献类型:
--
作者:
V. M. Sellers;T. Dailey;H. Dailey
Ferrochelatase (E.C. 4.99.1.1), the enzyme that catalyzes the terminal step in the heme biosynthetic pathway, is the site of defect in the human inherited disease erythropoietic protoporphyria (EPP). Previously it has been demonstrated that patients with EPP may have missense mutations leading to amino acid substitutions, early chain termination, or exon deletions. While it has been clearly demonstrated that two missense mutations result in lowered enzyme activity, it has never been shown what effect specific exon deletions may have. In the current work, recombinant human ferrochelatase has been engineered to have individual exon deletions corresponding to exons 3 through 11. When expressed in Escherichia coli, none of these possesses significant enzyme activity and all lack the [2Fe-2S] cluster. One of the human missense mutations, F417S, and a series of amino acid replacements at this site (ie, F417W, F417Y, and F417L) were examined. With the exception of F417L, all lacked enzyme activity and did not contain the [2Fe-2S] cluster in vivo or as isolated in vitro.
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影响因子:
2.9
作者:
DAILEY, HA;FINNEGAN, MG;JOHNSON, MK
通讯作者:
JOHNSON, MK
DOI:
10.1042/bj2540799
发表时间:
1988
期刊:
The Biochemical journal
影响因子:
--
作者:
Karr,SR;Dailey,HA
通讯作者:
Dailey,HA
DOI:
10.1016/s0021-9258(17)44247-5
发表时间:
1983-10
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
H. Dailey;J. Fleming
通讯作者:
H. Dailey;J. Fleming
DOI:
--
发表时间:
1991
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Straka,JG;Bloomer,JR;Kempner,ES
通讯作者:
Kempner,ES
DOI:
10.1016/0925-4439(94)90077-9
发表时间:
1994
期刊:
Biochimica et biophysica acta
影响因子:
--
作者:
Wang,X;Poh-Fitzpatrick,M;Taketani,S;Chen,T;Piomelli,S
通讯作者:
Piomelli,S