Abstract

Identification of the coding elements in the genome is fundamental to interpret the development of living systems and species diversity. Small peptides (length < 100 amino acids) have played an important role in regulating the biological metabolism, but their identification has been limited by their size and abundance. Serum is the most important body fluid and is full of small peptides. In this study, we have established a small ORF-encoded peptides (SEPs) database from mouse GENCODE release. This database provides about half a million putative translated SEPs in mouse. We also extract serum proteins from wild type and ob/ob mice, and collect the low molecular weight proteins for mass spectrometric analysis. More than 50 novel SEPs have been discovered. Several SEPs are further verified by biochemical method with newly raised antibodies. These novel SEPs enhance the knowledge about the complexity of serum and provide new clues for the annotation and functional analysis of genes, especially the noncoding elements in the genome.

Details

Title
Identification of small ORF-encoded peptides in mouse serum
Author
Deng Yaqin 1 ; Bamigbade, Adekunle Toyin 2 ; Hammad, Mirza Ahmed 2 ; Xu Shimeng 2 ; Liu, Pingsheng 1 

 Institute of Biophysics, Chinese Academy of Sciences, National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Beijing, China (GRID:grid.418856.6) (ISNI:0000 0004 1792 5640); University of Chinese Academy of Sciences, Beijing, China (GRID:grid.410726.6) (ISNI:0000 0004 1797 8419) 
 Institute of Biophysics, Chinese Academy of Sciences, National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Beijing, China (GRID:grid.418856.6) (ISNI:0000 0004 1792 5640) 
Pages
39-49
Publication year
2018
Publication date
Feb 2018
Publisher
Institute of Biophysics
ISSN
23643439
e-ISSN
23643420
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2404396657
Copyright
© The Author(s) 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.