Abstract:
:Pre-implantation embryo development is an intricate and precisely regulated process orchestrated by maternally inherited proteins and newly synthesized proteins following zygotic genome activation. Although genomic and transcriptomic studies have enriched our understanding of the genetic programs underlying this process, the protein expression landscape remains unexplored. Using quantitative mass spectrometry, we identified nearly 5,000 proteins from 8,000 mouse embryos of each stage (zygote, 2-cell, 4-cell, 8-cell, morula, and blastocyst). We found that protein expression in zygotes, morulas, and blastocysts is distinct from 2- to 8-cell embryos. Analysis of protein phosphorylation identified critical kinases and signal transduction pathways. We highlight key factors and their important roles in embryo development. Combined analysis of transcriptomic and proteomic data reveals coordinated control of RNA degradation, transcription, and translation and identifies previously undefined exon-junction-derived peptides. Our study provides an invaluable resource for further mechanistic studies and suggests core factors regulating pre-implantation embryo development.
journal_name
Cell Repjournal_title
Cell reportsauthors
Gao Y,Liu X,Tang B,Li C,Kou Z,Li L,Liu W,Wu Y,Kou X,Li J,Zhao Y,Yin J,Wang H,Chen S,Liao L,Gao Sdoi
10.1016/j.celrep.2017.11.111subject
Has Abstractpub_date
2017-12-26 00:00:00pages
3957-3969issue
13issn
2211-1247pii
S2211-1247(17)31795-3journal_volume
21pub_type
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