Search Results
Overview
| Uniprot ID | O60271 |
|---|---|
| Protein Name | C-Jun-amino-terminal kinase-interacting protein 4 |
| Gene Name | SPAG9 |
| Organism | Homo sapiens |
Kla Sites from experimental identification
| Position | Flanking peptide |
|---|---|
| 1140 | SKMLGTGKLGFSFVR |
| 178 | MEHLERTKLHQLSGS |
| 373 | PTKGIENKAFDRNTE |
| 577 | PEPPVNLKYNAPTSH |
| 591 | HVTPSVKKRSSTLSQ |
| 603 | LSQLPGDKSKAFDFL |
| 605 | QLPGDKSKAFDFLSE |
Function
The JNK-interacting protein (JIP) group of scaffold proteins selectively mediates JNK signaling by aggregating specific components of the MAPK cascade to form a functional JNK signaling module (PubMed:14743216). Regulates lysosomal positioning by acting as an adapter protein which links PIP4P1-positive lysosomes to the dynein-dynactin complex (PubMed:29146937). Assists PIKFYVE selective functionality in microtubule-based endosome-to-TGN trafficking (By similarity)
Protein Sequence
Gene Ontology
| Classification | GO ID | Description |
|---|---|---|
| Cellular Component | GO:0001669 | acrosomal vesicle |
| Cellular Component | GO:0034451 | centriolar satellite |
| Cellular Component | GO:0005737 | cytoplasm |
| Cellular Component | GO:0005829 | cytosol |
| Cellular Component | GO:0070062 | extracellular exosome |
| Cellular Component | GO:0005765 | lysosomal membrane |
| Cellular Component | GO:0048471 | perinuclear region of cytoplasm |
| Molecular Function | GO:0042802 | identical protein binding |
| Molecular Function | GO:0008432 | JUN kinase binding |
| Molecular Function | GO:0019894 | kinesin binding |
| Molecular Function | GO:0005078 | MAP-kinase scaffold activity |
| Molecular Function | GO:0030159 | signaling receptor complex adaptor activity |
| Biological Process | GO:0032418 | lysosome localization |
| Biological Process | GO:0030335 | positive regulation of cell migration |
| Biological Process | GO:0042147 | retrograde transport, endosome to Golgi |
| Biological Process | GO:0016192 | vesicle-mediated transport |
Reference
[1] 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.
[2] Lin Y, Chen M, Wang D, Yu Y, Chen R et al.. Multi-Proteomic Analysis Reveals the Effect of Protein Lactylation on Matrix and Cholesterol Metabolism in Tendinopathy.. J Proteome Res 22(6):1712-1722. 2023 Jun 2. PMID: 37159428.
[3] He C, Zhang J, Bai X, Lu C, Zhang K. Lysine lactylation-based insight to understanding the characterization of cervical cancer.. Biochim Biophys Acta Mol Basis Dis 1870(7):167356. 2024 Oct. PMID: 39025375.
[4] 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.
[5] 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.