Calumenin, a Ca2+-binding Protein Retained in the Endoplasmic Reticulum with a Novel Carboxyl-terminal Sequence, HDEF*

Calumenin, a Ca2+-binding Protein Retained in the Endoplasmic Reticulum with a Novel Carboxyl-terminal Sequence, HDEF*
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Calumenin,一种保留在内质网中的 Ca2 结合蛋白,具有新型羧基末端序列,HDEF*

DOI:
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发表时间:
1997
影响因子:
4.8
通讯作者:
T. Honjo
T. Honjo
中科院分区:
生物学2区
文献类型:
--
作者:
D. Yabe;Tomoyuki Nakamura;N. Kanazawa;K. Tashiro;T. Honjo

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我们已经确定和特征的cDNA编码一种新的钙离子结合蛋白calumenin从小鼠心脏的信号序列陷阱方法。calumenin的推导的氨基酸序列(315个残基)包含一个氨基端信号序列和6个Ca 2+结合(EF手)基序,并显示与网织红蛋白,Erc-55,Cab 45的同源性。这些蛋白质似乎形成了一个新的子集的EF-手蛋白家族表达的内质网(ER)和高尔基体的内腔。纯化的calumenin具有钙结合能力。羧基末端四肽His-Asp-Glu-Phe被证明是负责保留钙调素在ER的保留试验,免疫染色与共聚焦激光显微镜,和去糖基化试验。这是第一份报告表明,苯丙氨酸残基是包括在ER保留信号。Calumenin在成体和18.5天胚胎的心脏中表达最强。calumenin基因(Calu)定位于小鼠7号染色体的近端部分。
We have identified and characterized a cDNA encoding a novel Ca2+-binding protein named calumenin from mouse heart by the signal sequence trap method. The deduced amino acid sequence (315 residues) of calumenin contains an amino-terminal signal sequence and six Ca2+-binding (EF-hand) motifs and shows homology with reticulocalbin, Erc-55, and Cab45. These proteins seem to form a new subset of the EF-hand protein family expressed in the lumen of the endoplasmic reticulum (ER) and Golgi apparatus. Purified calumenin had Ca2+-binding ability. The carboxyl-terminal tetrapeptide His-Asp-Glu-Phe was shown to be responsible for retention of calumenin in ER by the retention assay, immunostaining with a confocal laser microscope, and the deglycosylation assay. This is the first report indicating that the Phe residue is included in the ER retention signal. Calumenin is expressed most strongly in heart of adult and 18.5-day embryos. The calumenin gene (Calu) was mapped at the proximal portion of mouse chromosome 7.
DOI: --
发表时间: 1991
期刊: The Journal of biological chemistry
影响因子: --
作者:
Andres,DA;Rhodes,JD;Meisel,RL;Dixon,JE
通讯作者: Dixon,JE
DOI: 10.1016/s0021-9258(19)39273-7
发表时间: 1990-04
期刊: The Journal of biological chemistry
影响因子: --
作者:
D. Andres;I. Dickerson;J. Dixon
通讯作者: D. Andres;I. Dickerson;J. Dixon
DOI: --
发表时间: 1991
期刊: The Journal of biological chemistry
影响因子: --
作者:
Wileman,T;Kane,LP;Carson,GR;Terhorst,C
通讯作者: Terhorst,C
未折叠的H2b脱唾液酸糖蛋白受体亚基多肽在内质网内被选择性降解。
DOI: --
发表时间: 1993
期刊: The Journal of biological chemistry
影响因子: --
作者:
Wikström,L;Lodish,HF
通讯作者: Lodish,HF
DOI: 10.1126/science.7624774
发表时间: 1995-07-28
期刊: SCIENCE
影响因子: 56.9
作者:
CHEN, JJ;REID, CE;ANDROPHY, EJ
通讯作者: ANDROPHY, EJ