Cited by 359Bacterial Genetics and BiotechnologyGenomics and Phylogenetic StudiesBiochemical and Structural Characterization

Small Proteins Can No Longer Be Ignored

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Storz, Gisela, Wolf, Yuri I., Ramamurthi, Kumaran S.·2014·Annual Review of Biochemistry

Abstract

Small proteins, here defined as proteins of 50 amino acids or fewer in the absence of processing, have traditionally been overlooked due to challenges in their annotation and biochemical detection. In the past several years, however, increasing numbers of small proteins have been identified either through the realization that mutations in intergenic regions are actually within unannotated small protein genes or through the discovery that some small, regulatory RNAs encode small proteins. These insights, together with comparative sequence analysis, indicate that tens if not hundreds of small proteins are synthesized in a given organism. This review summarizes what has been learned about the functions of several of these bacterial small proteins, most of which act at the membrane, illustrating the astonishing range of processes in which these small proteins act and suggesting several general conclusions. Important questions for future studies of these overlooked proteins are also discussed.

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  • Growing experimental evidence in mycobacteria and other prokaryotes has shown that many sproteins are functional, requiring a rethinking of gene definitions.

    “However, growing experimental evidence in mycobacteria and other prokaryotes has shown that many sproteins are functional, requiring a rethinking of gene definitions (71–75).”

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  1. [3]National Center for Biotechnology What Kind of Data Can be Submitted to GenBank? The GenBank Submissions Handbook 2011 Bethesda, MD http://www.ncbi.nlm.nih.gov/books/NBK53707/

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Authors
Storz, G., Wolf, Y. I., & Ramamurthi, K. S.
Affiliations
National Institutes of Health (US)
Corresponding author
  • Storz, Gisela
  • Ramamurthi, Kumaran S.
Venue
Annual Review of Biochemistry
Published
2014-06-02
Volume
83
Issue
1
Pages
753-777
ISSN
  • 0066-4154 (ISSN-L)
  • 1545-4509
OpenAlex
W2121350645
Cited by
359
References
108
Citations by year
2026: 19 · 2025: 27 · 2024: 32 · 2023: 37 · 2022: 22 · 2021: 46 · 2020: 41 · 2019: 29 · 2018: 38 · 2017: 28 · 2016: 24 · 2015: 11 · 2014: 4
FWCI
2.96
Type
journal article
Language
en
Open access
Locations
  • Annual Review of Biochemistry (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (Z99 LM999999)
  • National Cancer Institute (ZIABC011211)
  • National Institute of Child Health and Human Development
  • U.S. National Library of Medicine
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (ZIAHD008855)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Bacterial Genetics and Biotechnology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Genomics and Phylogenetic Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Structural Characterization
Keywords
small proteins, small regulatory RNAs, protein annotation, membrane proteins, sequence comparison, protein function
MeSH terms
Amino Acids, Animals, Bacillus subtilis, Bacterial Proteins, Bacteriophages, Cell Division, Codon, Drosophila, Escherichia coli, Protein Kinases, Proteins, Ribosomes, RNA, Signal Transduction, Open Reading Frames, Computational Biology

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