A distinctive sequence motif in the fourth transmembrane domain confers ZIP13 iron function in Drosophila melanogaster.
A distinctive sequence motif in the fourth transmembrane domain confers ZIP13 iron function in Drosophila melanogaster.
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第四跨膜结构域中的独特序列基序赋予 ZIP13 黑腹果蝇铁功能。
DOI:
10.1016/j.bbamcr.2019.118607
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发表时间:
2019-11
影响因子:
5.1
通讯作者:
Zhou Bing
中科院分区:
文献类型:
--
作者:
Zhao Mengran;Zhou Bing
The zinc/iron permease (ZIP/SLC39A) family plays an important role in metal ion transport and is essential for diverse physiological processes. Members of the ZIP family function primarily in the influx of transition metal ions zinc and iron, into cytoplasm from extracellular space or intracellular organelles. The molecular determinants defining metal ion selectivity among ZIP family members remain unclear. Specifically, we reported before that theDrosophilaZIP family member ZIP13 (dZIP13), functions as an iron exporter and was responsible for pumping iron into the secretory pathway. ZIP13 protein is unique in that it differs from the other LIV-1 subfamily members at transmembrane domain IV (TM4), wherein relative positions of the conserved H and D residues in the HNXXD sequence motif are switched, generating a DNXXH motif. In this study, we undertook anin vivoapproach to explore the significance of this D/H exchange. Comparative functional analysis of mutants revealed that the relative positions of D and H are critical for the physiological roles of dZIP13 and its close homologue dZIP7. Swapping D/H position of this DNXXH sequence in dZIP13 resulted in loss of iron activity; normal dZIP13 could not complement dZIP7 loss, but swapping the two relative amino acid positions D and H in dZIP13 was sufficient to make it functionally analogous to its close homologue dZIP7. This work provides the firstin vivofunctional analysis of a structural motif required to differentiate different transporting functions of ZIPs.
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影响因子:
13.6
作者:
Zhang T;Liu J;Fellner M;Zhang C;Sui D;Hu J
通讯作者:
Hu J
DOI:
10.1042/bj20130483
发表时间:
2013-10-15
期刊:
The Biochemical journal
影响因子:
--
作者:
Hogstrand C;Kille P;Ackland ML;Hiscox S;Taylor KM
通讯作者:
Taylor KM
影响因子:
5.4
作者:
Qin Q;Wang X;Zhou B
通讯作者:
Zhou B
DOI:
10.1016/j.biocel.2014.12.017
发表时间:
2015-03-01
影响因子:
4
作者:
Dechen, Kesang;Richards, Christopher D.;Burke, Richard
通讯作者:
Burke, Richard
DOI:
10.1074/jbc.m116.726935
发表时间:
2016-06
期刊:
The Journal of Biological Chemistry
影响因子:
--
作者:
Charles E. Zogzas;M. Aschner;Somshuvra Mukhopadhyay
通讯作者:
Charles E. Zogzas;M. Aschner;Somshuvra Mukhopadhyay