HINT1

Histidine triad nucleotide binding protein 1

PDB rendering based on 1av5.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
Symbols HINT1 ; HINT; NMAN; PKCI-1; PRKCNH1
External IDs OMIM: 601314 MGI: 1321133 HomoloGene: 3904 ChEMBL: 5878 GeneCards: HINT1 Gene
EC number 3.-.-.-
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 3094 15254
Ensembl ENSG00000169567 ENSMUSG00000020267
UniProt P49773 P70349
RefSeq (mRNA) NM_005340 NM_008248
RefSeq (protein) NP_005331 NP_032274
Location (UCSC) Chr 5:
131.16 – 131.17 Mb
Chr 11:
54.87 – 54.87 Mb
PubMed search

Histidine triad nucleotide-binding protein 1 is a protein that in humans is encoded by the HINT1 gene.[1][2] It is a haploinsufficient tumor suppressor gene that inhibits the Wnt/β-catenin pathway in colon cancer cells and Microphthalmia-associated transcription factor (MITF) activity in human mast cells.[3][4] In the LysRS-Ap4A-MITF signaling pathway, HINT1 inhibits the MITF transcriptional activity by direct association. Upon pathway activation, HINT1 is released from MITF by diadenosine tetraphosphate (Ap4A), produced by LysRS.[4][5]

References

  1. Brzoska PM, Chen H, Levin NA, Kuo WL, Collins C, Fu KK, Gray JW, Christman MF (Feb 1997). "Cloning, mapping, and in vivo localization of a human member of the PKCI-1 protein family (PRKCNH1)". Genomics 36 (1): 151–6. doi:10.1006/geno.1996.0435. PMID 8812426.
  2. "Entrez Gene: HINT1 histidine triad nucleotide binding protein 1".
  3. Wang L, Li H, Zhang Y, Santella RM, Weinstein IB (Apr 2009). "HINT1 inhibits beta-catenin/TCF4, USF2 and NFkappaB activity in human hepatoma cells". Int J Cancer 124 (7): 1526–34. doi:10.1002/ijc.24072. PMC 2667231. PMID 19089909.
  4. 1 2 Lee YN, Nechushtan H, Figov N, Razin E (Feb 2004). "The function of lysyl-tRNA synthetase and Ap4A as signaling regulators of MITF activity in FcepsilonRI-activated mast cells". Immunity 20 (2): 145–51. doi:10.1016/S1074-7613(04)00020-2. PMID 14975237.
  5. Yannay-Cohen N, Carmi-Levy I, Kay G, Yang CM, Han JM, Kemeny DM, Kim S, Nechushtan H, Razin E (June 2009). "LysRS serves as a key signaling molecule in the immune response by regulating gene expression". Mol Cell 34 (5): 603–11. doi:10.1016/j.molcel.2009.05.019. PMID 19524539.

Further reading


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