Skip to main content
. 2014 May 27;13(12):1840–1858. doi: 10.4161/cc.29335

Table 1. Potential SAPD targets and the senescence-associated phenotypes they could regulate.

Phenotypes Proteins Functions
Mitochondrial dysfunction ATP5B β-Subunit of the ATP synthase catalytic core (F1); ATP synthesis66
STAT3 Modulates respiration via complex I and II69,70
HSP1A1 (HSP70) Component of the TOM complex; import of matrix mitochondrial proteins74
TOMM70A Component of the TOM complex; import of matrix mitochondrial proteins74
TOMM34 Component of the TOM complex; import of matrix mitochondrial proteins74
Proteotoxic stress HSPA1A (HSP70) Protein refolding under stress conditions; supports oncogenesis82,83,89
HSPA5,7,8 and 9 Protein refolding under stress conditions; supports oncogenesis82,83,89
HSPB1 (HSP27) Protein refolding under stress conditions; suppresses cellular senescence82,83,89,95
HSPD1 (HSP60) Protein refolding under stress conditions82,83,89
HSP90AB1 Protein refolding under stress conditions; supports oncogenesis82,83,89
DNA damage response CCDC6 DNA damage checkpoints and DNA repair109,110,116
SOD1 Superoxide detoxification113,114,120
TOP2 Relaxes topological constraints during DNA replication; chromosomes segregation117
TERF2IP Component of the telosome; tethering telomeres to the nuclear envelope; protect telomere ends from NHEJ and HDR124-126,128,267,268
Nucleolar and ribosome biogenesis dysfunction NOLC1 Polymerase I coactivator; scaffold protein for nucleolar assembly137,138
NOP56 and 58 Components of the box C/D snoRNPs139
DDX51 RNA helicase; processing of the 3′ end of the 28S rRNA140
NOL6 Processing of the 18S rRNA141
NOC2L Processing of the 18S, 28S and 5.8S rRNAs142
NCL Polymerase I transcription; rRNA processing; ribosome assembly and transport143
RPLP1 Translational elongation; overexpression bypasses replicative senescence144
RSL1D1 Regulates the nucleolar localization of nucleostemin; rRNA processing146,149
NPM1 Processing of the 32S pre-rRNA to the mature 28S rRNA153,154
Cell cycle arrest YAP1 Regulates apoptosis; regulates organ size; liver oncogene167,269
MCM2 Initiation and progression of DNA replication172
LRWD1 (ORCA) stabilizes the origin recognition complex (ORC) to chromatin173
MYC Promotes DNA replication177
JUN Promotes G1-to-S-phase progression189
KAP1 (TRIM28) Destabilized the tumor suppressor p53192-194
TBX2 Repression of P19ARF; repression of the CDK inhibitors p21 and p27199-201
Impaired mRNA metabolism and translation YB-1 (YBX1) mRNA stability, mRNA packaging, splicing and translational initiation; oncogene204,207
SRm160 (SRRM1) Coactivator for exonic splicing enhancers and for 3′-end processing of specific pre-mRNAs210-213
SRm300 (SRRM2) Coactivator for exonic splicing enhancers and for 3′-end processing of specific pre-mRNAs210,211,213