Article · Wikipedia archive · Last revised Jun 3, 2026

MLST8

Target of rapamycin complex subunit LST8, also known as mammalian lethal with SEC13 protein 8 (mLST8) or TORC subunit LST8 or G protein beta subunit-like, is a protein that in humans is encoded by the MLST8 gene. It is a subunit of both mTORC1 and mTORC2, complexes that regulate cell growth and survival in response to nutrient, energy, redox, and hormonal signals. It is upregulated in several human colon and prostate cancer cell lines and tissues. Knockdown of mLST8 prevented mTORC formation and inhibited tumor growth and invasiveness.

Last revised
Jun 3, 2026
Read time
≈ 4 min
Length
855 w
Citations
11
Source
MLST8
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesMLST8, GBL, GbetaL, LST8, POP3, WAT1, MTOR associated protein, LST8 homolog
External IDsOMIM: 612190; MGI: 1929514; HomoloGene: 6833; GeneCards: MLST8; OMA:MLST8 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001252463
NM_001252464
NM_001252465
NM_019988

RefSeq (protein)

NP_001239392
NP_001239393
NP_001239394
NP_064372

Location (UCSC)Chr 16: 2.2 – 2.21 MbChr 17: 24.69 – 24.7 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

Target of rapamycin complex subunit LST8, also known as mammalian lethal with SEC13 protein 8 (mLST8) or TORC subunit LST8 or G protein beta subunit-like (GβL or Gable), is a protein that in humans is encoded by the MLST8 (MTOR associated protein, LST8 homolog) gene.5 It is a subunit of both mTORC1 and mTORC2, complexes that regulate cell growth and survival in response to nutrient, energy, redox, and hormonal signals.6 It is upregulated in several human colon and prostate cancer cell lines and tissues. Knockdown of mLST8 prevented mTORC formation and inhibited tumor growth and invasiveness.7

References

References

  1. GRCh38: Ensembl release 89: ENSG00000167965Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000024142Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. "Entrez Gene: MTOR associated protein".
  6. "UniProtKB – Q9BVC4 (LST8_HUMAN)".
  7. Kakumoto K, Ikeda J, Okada M, Morii E, Oneyama C (23 Apr 2015). "mLST8 Promotes mTOR-Mediated Tumor Progression". PLOS ONE. 10 (4) e0119015. Bibcode:2015PLoSO..1019015K. doi:10.1371/journal.pone.0119015. PMC 4408021. PMID 25906254.
Further reading

Further reading