PAS3, a Saccharomyces cerevisiae gene encoding a peroxisomal integral membrane protein essential for peroxisome biogenesis.

PAS3, a Saccharomyces cerevisiae gene encoding a peroxisomal integral membrane protein essential for peroxisome biogenesis.
复制标题

DOI:
10.1083/jcb.114.6.1167
复制
发表时间:
1991-09
期刊:
The Journal of cell biology
影响因子:
--
通讯作者:
Kunau WH
Kunau WH
中科院分区:
其他
文献类型:
--
作者:
Höhfeld J;Veenhuis M;Kunau WH

文献摘要

参考文献

被引文献

相似文献

描述了酿酒酵母pas 3-突变体,其符合最近报道的过氧化物酶体装配突变体pas 1 -1和pas 2的pas-表型(Erdmann,R.,M. Veenhuis,D. Mertens和W.- H Kunau,1989,Proc. Natl. Acad. Sci. USA. 86:5419-5423)。pas 3-突变体的分离使我们能够通过功能互补克隆PAS 3基因。DNA序列分析显示,50.6 kD的蛋白质至少有一个足够的长度和疏水性的结构域,以跨越脂质双层。为了验证这些预测,针对在大肠杆菌中过表达的PAS 3编码区的截短部分产生抗体。杆菌Pas 3 p是一个48 kD的过氧化物酶体膜整合蛋白。它表明,这种蛋白质的缺乏导致过氧化物酶体缺陷型和过氧化物酶体基质酶的胞质错误定位。基于蛋白酶消化实验,讨论Pas 3 p通过其氨基末端锚定在过氧化物酶体膜上,而分子的大部分暴露于胞质溶胶。这些发现与Pas 3 p是过氧化物酶体进口机制的一个组成部分的可能性是一致的。
Saccharomyces cerevisiae pas3-mutants are described which conform the pas-phenotype recently reported for the peroxisomal assembly mutants pas1-1 and pas2 (Erdmann, R., M. Veenhuis, D. Mertens, and W.-H Kunau, 1989, Proc. Natl. Acad. Sci. USA. 86:5419-5423). The isolation of pas3- mutants enabled us to clone the PAS3 gene by functional complementation. DNA sequence analysis revealed a 50.6-kD protein with at least one domain of sufficient length and hydrophobicity to span a lipid bilayer. To verify these predictions antibodies were raised against a truncated portion of the PAS3 coding region overexpressed in E. coli. Pas3p was identified as a 48 kD peroxisomal integral membrane protein. It is shown that a lack of this protein causes the peroxisome- deficient phenotype and the cytosolic mislocalization of peroxisomal matrix enzymes. Based on protease digestion experiments Pas3p is discussed to be anchored in the peroxisomal membrane by its amino- terminus while the bulk of the molecule is exposed to the cytosol. These findings are consistent with the possibility that Pas3p is one component of the peroxisomal import machinery.
DOI: 10.1083/jcb.111.3.877
发表时间: 1990-09
期刊: The Journal of cell biology
影响因子: --
作者:
Raymond CK;O'Hara PJ;Eichinger G;Rothman JH;Stevens TH
通讯作者: Stevens TH
DOI: 10.1002/yea.320020304
发表时间: 1986-09-01
期刊: YEAST
影响因子: 2.6
作者:
HILL, JE;MYERS, AM;TZAGOLOFF, A
通讯作者: TZAGOLOFF, A
DOI: 10.1128/jb.172.10.5816-5827.1990
发表时间: 1990-10-01
影响因子: 3.2
作者:
MCCAMMON, MT;VEENHUIS, M;GOODMAN, JM
通讯作者: GOODMAN, JM
DOI: 10.1002/j.1460-2075.1983.tb01659.x
发表时间: 1983-01-01
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
RUTHER, U;MULLERHILL, B
通讯作者: MULLERHILL, B
DOI: 10.1016/0378-1119(87)90232-0
发表时间: 1987-01-01
期刊: GENE
影响因子: 3.5
作者:
ROSE, MD;NOVICK, P;FINK, GR
通讯作者: FINK, GR