MMS19 assembles iron-sulfur proteins required for DNA metabolism and genomic integrity.

MMS19 assembles iron-sulfur proteins required for DNA metabolism and genomic integrity.
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DOI:
10.1126/science.1219723
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发表时间:
2012-07-13
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Lill R
Lill R
中科院分区:
其他
文献类型:
--
作者:
Stehling O;Vashisht AA;Mascarenhas J;Jonsson ZO;Sharma T;Netz DJ;Pierik AJ;Wohlschlegel JA;Lill R

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Instability of the nuclear genome is a hallmark of cancer and aging. MMS19 protein has been linked to maintenance of genomic integrity but the molecular basis of this connection is unknown. Here, we identify MMS19 as a member of the cytosolic iron-sulfur protein assembly (CIA) machinery. MMS19 functions as part of the CIA targeting complex that specifically interacts with and facilitates iron-sulfur cluster insertion into apoproteins involved in methionine biosynthesis, DNA replication, DNA repair and telomere maintenance. MMS19 thus serves as an adapter between early-acting CIA components and a subset of cellular iron-sulfur proteins. The function of MMS19 in maturation of crucial components of DNA metabolism may explain the sensitivity of MMS19 mutants to DNA damage and the presence of extended telomeres.
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