Search Results
Overview
| Uniprot ID | P49773 |
|---|---|
| Protein Name | Adenosine 5'-monophosphoramidase HINT1 |
| Gene Name | HINT1 |
| Organism | Homo sapiens |
Kla Sites from experimental identification
| Position | Flanking peptide |
|---|---|
| 21 | GGDTIFGKIIRKEIP |
| 30 | IRKEIPAKIIFEDDR |
| 57 | THFLVIPKKHISQIS |
| 58 | HFLVIPKKHISQISV |
| 7 | *MADEIAKAQVARPG |
| 82 | GHLMIVGKKCAADLG |
| 83 | HLMIVGKKCAADLGL |
| 92 | AADLGLNKGYRMVVN |
Function
Exhibits adenosine 5'-monophosphoramidase activity, hydrolyzing purine nucleotide phosphoramidates with a single phosphate group such as adenosine 5'monophosphoramidate (AMP-NH2) to yield AMP and NH2 (PubMed:15703176, PubMed:16835243, PubMed:17217311, PubMed:17337452, PubMed:22329685, PubMed:23614568, PubMed:28691797, PubMed:29787766, PubMed:31990367). Hydrolyzes adenosine 5'monophosphomorpholidate (AMP-morpholidate) and guanosine 5'monophosphomorpholidate (GMP-morpholidate) (PubMed:15703176, PubMed:16835243). Hydrolyzes lysyl-AMP (AMP-N-epsilon-(N-alpha-acetyl lysine methyl ester)) generated by lysine tRNA ligase, as well as Met-AMP, His-AMP and Asp-AMP, lysyl-GMP (GMP-N-epsilon-(N-alpha-acetyl lysine methyl ester)) and AMP-N-alanine methyl ester (PubMed:15703176, PubMed:17337452, PubMed:22329685). Hydrolyzes 3-indolepropionic acyl-adenylate, tryptamine adenosine phosphoramidate monoester and other fluorogenic purine nucleoside tryptamine phosphoramidates in vitro (PubMed:17217311, PubMed:17337452, PubMed:23614568, PubMed:28691797, PubMed:29787766, PubMed:31990367). Can also convert adenosine 5'-O-phosphorothioate and guanosine 5'-O-phosphorothioate to the corresponding nucleoside 5'-O-phosphates with concomitant release of hydrogen sulfide (PubMed:30772266). In addition, functions as scaffolding protein that modulates transcriptional activation by the LEF1/TCF1-CTNNB1 complex and by the complex formed with MITF and CTNNB1 (PubMed:16014379, PubMed:22647378). Modulates p53/TP53 levels and p53/TP53-mediated apoptosis (PubMed:16835243). Modulates proteasomal degradation of target proteins by the SCF (SKP2-CUL1-F-box protein) E3 ubiquitin-protein ligase complex (PubMed:19112177). Also exhibits SUMO-specific isopeptidase activity, deconjugating SUMO1 from RGS17 (PubMed:31088288). Deconjugates SUMO1 from RANGAP1 (By similarity)
Protein Sequence
Gene Ontology
| Classification | GO ID | Description |
|---|---|---|
| Cellular Component | GO:0005737 | cytoplasm |
| Cellular Component | GO:0005856 | cytoskeleton |
| Cellular Component | GO:0005829 | cytosol |
| Cellular Component | GO:0070062 | extracellular exosome |
| Cellular Component | GO:0000118 | histone deacetylase complex |
| Cellular Component | GO:0005654 | nucleoplasm |
| Cellular Component | GO:0005634 | nucleus |
| Molecular Function | GO:0043530 | adenosine 5'-monophosphoramidase activity |
| Molecular Function | GO:0016929 | deSUMOylase activity |
| Molecular Function | GO:0016787 | hydrolase activity |
| Molecular Function | GO:0000166 | nucleotide binding |
| Molecular Function | GO:0005080 | protein kinase C binding |
| Biological Process | GO:0006351 | DNA-templated transcription |
| Biological Process | GO:0072332 | intrinsic apoptotic signaling pathway by p53 class mediator |
| Biological Process | GO:0050850 | positive regulation of calcium-mediated signaling |
| Biological Process | GO:0016926 | protein desumoylation |
| Biological Process | GO:0006508 | proteolysis |
| Biological Process | GO:0009154 | purine ribonucleotide catabolic process |
| Biological Process | GO:0006355 | regulation of DNA-templated transcription |
| Biological Process | GO:0007165 | signal transduction |
Reference
[1] Yang D, Yin J, Shan L, Yi X, Zhang W et al.. Identification of lysine-lactylated substrates in gastric cancer cells.. iScience 25(7):104630. 2022 Jul 15. PMID: 35800753.
[2] Yang Z, Yan C, Ma J, Peng P, Ren X et al.. Lactylome analysis suggests lactylation-dependent mechanisms of metabolic adaptation in hepatocellular carcinoma.. Nat Metab 5(1):61-79. 2023 Jan. PMID: 36593272.
[3] Hong H, Chen X, Wang H, Gu X, Yuan Y et al.. Global profiling of protein lysine lactylation and potential target modified protein analysis in hepatocellular carcinoma.. Proteomics 23(9):e2200432. 2023 May. PMID: 36625413.
[4] Yang YH, Wang QC, Kong J, Yang JT, Liu JF. Global profiling of lysine lactylation in human lungs.. Proteomics 23(15):e2200437. 2023 Aug. PMID: 37170646.
[5] Bao Q, Wan N, He Z, Cao J, Yuan W et al.. Subcellular Proteomic Mapping of Lysine Lactylation.. J Am Soc Mass Spectrom 35(12):3221-3232. 2024 Dec 4. PMID: 39569522.
[6] Shi CM, Wang QC, Li XL, Yang YH, Tang XY et al.. Global Profiling of Protein Lactylation in Human Hippocampi.. Proteomics Clin Appl 19(2):e202400061. 2025 Mar. PMID: 39610256.
[7] Guo X, Ren X, Yan C, Huang H. Quantitative Proteomics Reveals the Role of Lysine Lactylation in Lenalidomide-Resistance in Multiple Myeloma Cells.. ACS Chem Biol 20(7):1728-1738. 2025 Jul 18. PMID: 40590393.
[8] He J, Lai T, Zhou Z, Yang H, Lei Z et al.. Multiomics profiling reveals the involvement of protein lactylation in nonhomologous end joining pathway conferring radioresistance in lung adenocarcinoma cell.. Sci Rep 15(1):24651. 2025 Jul 9. PMID: 40634431.
[9] Wu Q, Li Z, Gong T, Zheng X, Zhou X et al.. Porphyromonas gingivalis infection induces lysine lactylation reprogramming in human umbilical vein endothelial cells.. Front Cell Infect Microbiol 16:1706727. 2026. PMID: 41696360.