Lack of XBP-1 Impedes Murine Cytomegalovirus Gene Expression

Lack of XBP-1 Impedes Murine Cytomegalovirus Gene Expression

The unfolded protein response (UPR) is an endoplasmic reticulum (ER)-to-nucleus signaling cascade induced in response to ER stress. The UPR aims at restoring homeostasis, but can also induce apoptosis if stress persists. Infection by human and murine cytomegaloviruses (CMVs) provokes ER stress and induces the UPR. However, both CMVs manipulate the UPR to promote its prosurvival activity and del...

Immunomodulatory Gene The Murine Cytomegalovirus

Structure and Expression of Murine Cytomegalovirus

The immediate-early gene ie2 of murine cytomegalovirus was characterized. The 1.75-kb ie2 transcript is spliced from three exons, of 78, 124, and 1,283 nucleotides, which are separated by introns of 1,245 and 364 nucleotides. An ATG codon located in the third exon leads into an open reading frame of 391 codons. Immediate-early expression of the predicted polypeptide was confirmed by immunopreci...

sequencing and gene expression analysis of leishmania tropica lack gene.

background: leishmania homologue of receptors for activated c kinase(lack) antigen is a 36-kda protein, which provokes a very early immune response against leishmania infection. there are several reports on the expression of lack through different life-cycle stages of genus leishmania , but only a few of them have focused on l.tropica . methods: the present study provides details of the cloning...

XBP-1 image overhaul

The development of antibody-secreting plasma cells is crippled in the absence of the transcription factor XBP-1 (X-box binding protein). Based on the role of XBP-1 in the endoplasmic reticulum (ER) unfolded protein response (UPR), it was speculated that the ER needs this protein to cope with the ramped-up protein production that accompanies plasma cell differentiation. On page 505, Tirosh and c...