{
  "abstract": "Pantothenate kinase 2 (PANK2) is a mitochondrial enzyme that catalyzes the rate-limiting phosphorylation of pantothenic acid in coenzyme A (CoA) biosynthesis. Mutations in PANK2 cause pantothenate kinase-associated neurodegeneration (PKAN), a rare neurodegenerative disorder characterized by CoA deficiency, mitochondrial dysfunction, iron accumulation, and ferroptosis. This study provides a systematic, phosphoproteome-wide characterization of PANK2 regulation by integrating human phosphoproteomics data curated from 3825 studies, yielding 2359 datasets (2061 profile; 298 differential) reporting a Class-1 PANK2 phosphosite. We identify S168, S169, and S189 as the predominant phosphosites, located primarily in disordered regions outside the catalytic domain. Through high-confidence co-phosphoregulation analysis, we map extensive networks of positively and negatively co-phosphoregulated phosphosites on other proteins (PsOPs), along with potential upstream kinases including AKT1/2, ULK1, and MAPK pathway components, phosphatases e.g., PTPN1, CDC25B, and binary interactors like KSR1 and NFKB1. These correlative findings extend prior biochemical evidence of direct AKT phosphorylation of PANK2 and generate testable hypotheses regarding broader phospho-regulatory networks. Experimental validation will be required to establish causality and functional relevance for PKAN and CoA-deficiency disorders.",
  "abstract_shown": true,
  "affiliations": [
    "Corresponding authors.",
    "Centre for Integrative Omics Data Science, Yenepoya (Deemed to be University), Mangalore, Karnataka, 575018, India"
  ],
  "article_type": null,
  "arxiv": null,
  "author_total": 5,
  "authors": [
    {
      "affs": [
        0
      ],
      "name": "Athira C. Rajeev"
    },
    {
      "affs": [
        1
      ],
      "name": "Althaf Mahin"
    },
    {
      "affs": [
        1
      ],
      "name": "Athira Perunelly Gopalakrishnan"
    },
    {
      "affs": [
        1
      ],
      "name": "Prathik Basthikoppa Shivamurthy"
    },
    {
      "affs": [
        0
      ],
      "name": "Rajesh Raju"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/3ve33g8jg0cv0.bib",
  "cited_by": 0,
  "doi": "10.1016/j.rechem.2026.104004",
  "fulltext_url": "http://www.sciencedirect.com/science/article/pii/S2211715626009781",
  "id": "3ve33g8jg0cv0",
  "issns": [
    "2211-7156"
  ],
  "landing_url": "https://doi.org/10.1016/j.rechem.2026.104004",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "lcc",
      "QD1-999"
    ],
    [
      "openalex",
      "1607|Advanced Proteomics Techniques and Applications"
    ]
  ],
  "openalex": "W7223249803",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-10-30",
  "publisher": "Elsevier",
  "ris": "https://research.draconitic.com/paper/3ve33g8jg0cv0.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T13:47:23Z",
      "native_id": "e58ec76734f2441782f8d1f65ebe3462",
      "source": "doaj",
      "url": "https://doi.org/10.1016/j.rechem.2026.104004"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "openalex:1607|Advanced Proteomics Techniques and Applications",
      "subfield": "physical"
    }
  ],
  "title": "Global phosphoproteomics uncovers PANK2 phosphorylation sites and co-phosphoregulation networks",
  "title_text": "Global phosphoproteomics uncovers PANK2 phosphorylation sites and co-phosphoregulation networks",
  "type": "peer-reviewed",
  "updated_at": "2026-10-30T13:47:23Z",
  "url": "https://research.draconitic.com/paper/3ve33g8jg0cv0",
  "venue": "Results in Chemistry",
  "versions": []
}