The HAPSTR2 retrogene buffers stress signaling and resilience in mammals.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
11 01 2023
11 01 2023
Historique:
received:
10
06
2022
accepted:
20
12
2022
entrez:
11
1
2023
pubmed:
12
1
2023
medline:
14
1
2023
Statut:
epublish
Résumé
We recently identified HAPSTR1 (C16orf72) as a key component in a novel pathway which regulates the cellular response to molecular stressors, such as DNA damage, nutrient scarcity, and protein misfolding. Here, we identify a functional paralog to HAPSTR1: HAPSTR2. HAPSTR2 formed early in mammalian evolution, via genomic integration of a reverse transcribed HAPSTR1 transcript, and has since been preserved under purifying selection. HAPSTR2, expressed primarily in neural and germline tissues and a subset of cancers, retains established biochemical features of HAPSTR1 to achieve two functions. In normal physiology, HAPSTR2 directly interacts with HAPSTR1, markedly augmenting HAPSTR1 protein stability in a manner independent from HAPSTR1's canonical E3 ligase, HUWE1. Alternatively, in the context of HAPSTR1 loss, HAPSTR2 expression is sufficient to buffer stress signaling and resilience. Thus, we discover a mammalian retrogene which safeguards fitness.
Identifiants
pubmed: 36631436
doi: 10.1038/s41467-022-35697-1
pii: 10.1038/s41467-022-35697-1
pmc: PMC9834230
doi:
Substances chimiques
HAPSTR1 protein, human
0
Ubiquitin-Protein Ligases
EC 2.3.2.27
HAPSTR2 protein, human
0
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
152Subventions
Organisme : NCI NIH HHS
ID : F30 CA264513
Pays : United States
Organisme : NIGMS NIH HHS
ID : P41 GM108569
Pays : United States
Organisme : NCI NIH HHS
ID : P30 CA060553
Pays : United States
Organisme : HSRD VA
ID : PPO 16-135
Pays : United States
Organisme : NIGMS NIH HHS
ID : R35 GM133658
Pays : United States
Organisme : NCI NIH HHS
ID : R00 CA175293
Pays : United States
Organisme : NIGMS NIH HHS
ID : R01 GM144617
Pays : United States
Organisme : NIGMS NIH HHS
ID : R35 GM137836
Pays : United States
Organisme : NIGMS NIH HHS
ID : T32 GM008152
Pays : United States
Organisme : NIH HHS
ID : S10 OD025194
Pays : United States
Informations de copyright
© 2023. The Author(s).
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