In vitro biosynthesis of diphthamide, studied with mutant Chinese hamster ovary cells resistant to diphtheria toxin.
In vitro biosynthesis of diphthamide, studied with mutant Chinese hamster ovary cells resistant to diphtheria toxin.
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用抗白喉毒素的突变型中国仓鼠卵巢细胞研究了白喉酰胺的体外生物合成。
DOI:
10.1128/mcb.4.4.642-650.1984
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发表时间:
1984
影响因子:
5.3
通讯作者:
Moehring,JM
中科院分区:
文献类型:
--
作者:
Moehring,TJ;Danley,DE;Moehring,JM
Diphthamide, a unique amino acid, is a post-translational derivative of histidine that exists in protein synthesis elongation factor 2 at the site of diphtheria toxin-catalyzed ADP-ribosylation of elongation factor 2. We investigated steps in the biosynthesis of diphthamide with mutants of Chinese hamster ovary cells that were altered in different steps of this complex post-translational modification. Biochemical evidence indicates that this modification requires a minimum of three steps, two of which we accomplished in vitro. We identified a methyltransferase activity that transfers methyl groups fromS-adenosyl methionine to an unmethylated form of diphthine (the deamidated form of diphthamide), and we tentatively identified an ATP-dependent synthetase activity involved in the biosynthesis of diphthamide from diphthine. Our results are in accord with the proposed structure of diphthamide (B. G. VanNess, et al., J. Biol. Chem.255:10710–10716, 1980).
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DOI:
10.1210/jcem-65-4-617
发表时间:
1987
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
作者:
Daughaday,WH;Starkey,RH;Saltman,S;Gavin3rd,JR;Mills-Dunlap,B;Heath-Monnig,E
通讯作者:
Heath-Monnig,E
DOI:
10.1210/jcem-64-6-1142
发表时间:
1987
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
作者:
Furlanetto,RW;DiCarlo,JN;Wisehart,C
通讯作者:
Wisehart,C
DOI:
10.1073/pnas.83.3.664
发表时间:
1986-02-01
影响因子:
11.1
作者:
FLIER, JS;USHER, P;MOSES, AC
通讯作者:
MOSES, AC
DOI:
10.1210/jcem-55-4-741
发表时间:
1982
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
作者:
Kaplowitz,PB;D'Ercole,AJ
通讯作者:
D'Ercole,AJ
DOI:
10.1172/jci110526
发表时间:
1982
期刊:
The Journal of clinical investigation
影响因子:
--
作者:
Caro,JF;Amatruda,JM
通讯作者:
Amatruda,JM