Seroatlas · Human Serome Atlas

PLEKHM2

Pleckstrin homology domain-containing family M member 2

Also known as: KIAA0842, PKHM2_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q8IWE5
Gene
PLEKHM2
Ensembl
ENSG00000116786
Chromosome
1
Canonical length
1019 aa
Protein class
Predicted intracellular proteins

OverviewNCBI Gene

This gene encodes a protein that binds the plus-end directed microtubule motor protein kinesin, together with the lysosomal GTPase Arl8, and is required for lysosomes to distribute away from the microtubule-organizing center. The encoded protein belongs to the multisubunit BLOC-one-related complex that regulates lysosome positioning. It binds a Salmonella effector protein called Salmonella induced filament A and is a critical host determinant in Salmonella pathogenesis. It has a domain architecture consisting of an N-terminal RPIP8, UNC-14, and NESCA (RUN) domain that binds kinesin-1 as well as the lysosomal GTPase Arl8, and a C-terminal pleckstrin homology domain that binds the Salmonella induced filament A effector protein. Naturally occurring mutations in this gene lead to abnormal localization of lysosomes, impaired autophagy flux and are associated with recessive dilated cardiomyopathy and left ventricular noncompaction. [provided by RefSeq, Feb 2017]

Canonical amino-acid sequenceUniProt

1019 residues, UniProt reviewed canonical sequence.

>Q8IWE5|PLEKHM2
     1  MEPGEVKDRI LENISLSVKK LQSYFAACED EIPAIRNHDK VLQRLCEHLD HALLYGLQDL
    61  SSGYWVLVVH FTRREAIKQI EVLQHVATNL GRSRAWLYLA LNENSLESYL RLFQENLGLL
   121  HKYYVKNALV CSHDHLTLFL TLVSGLEFIR FELDLDAPYL DLAPYMPDYY KPQYLLDFED
   181  RLPSSVHGSD SLSLNSFNSV TSTNLEWDDS AIAPSSEDYD FGDVFPAVPS VPSTDWEDGD
   241  LTDTVSGPRS TASDLTSSKA STRSPTQRQN PFNEEPAETV SSSDTTPVHT TSQEKEEAQA
   301  LDPPDACTEL EVIRVTKKKK IGKKKKSRSD EEASPLHPAC SQKKCAKQGD GDSRNGSPSL
   361  GRDSPDTMLA SPQEEGEGPS STTESSERSE PGLLIPEMKD TSMERLGQPL SKVIDQLNGQ
   421  LDPSTWCSRA EPPDQSFRTG SPGDAPERPP LCDFSEGLSA PMDFYRFTVE SPSTVTSGGG
   481  HHDPAGLGQP LHVPSSPEAA GQEEEGGGGE GQTPRPLEDT TREAQELEAQ LSLVREGPVS
   541  EPEPGTQEVL CQLKRDQPSP CLSSAEDSGV DEGQGSPSEM VHSSEFRVDN NHLLLLMIHV
   601  FRENEEQLFK MIRMSTGHME GNLQLLYVLL TDCYVYLLRK GATEKPYLVE EAVSYNELDY
   661  VSVGLDQQTV KLVCTNRRKQ FLLDTADVAL AEFFLASLKS AMIKGCREPP YPSILTDATM
   721  EKLALAKFVA QESKCEASAV TVRFYGLVHW EDPTDESLGP TPCHCSPPEG TITKEGMLHY
   781  KAGTSYLGKE HWKTCFVVLS NGILYQYPDR TDVIPLLSVN MGGEQCGGCR RANTTDRPHA
   841  FQVILSDRPC LELSAESEAE MAEWMQHLCQ AVSKGVIPQG VAPSPCIPCC LVLTDDRLFT
   901  CHEDCQTSFF RSLGTAKLGD ISAVSTEPGK EYCVLEFSQD SQQLLPPWVI YLSCTSELDR
   961  LLSALNSGWK TIYQVDLPHT AIQEASNKKK FEDALSLIHS AWQRSDSLCR GRASRDPWC

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PLEKHM2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Other membrane
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.45
Highest tissue expression
159 nTPM

Expression across tissuesHPA

Tissue

  • cerebral cortex: 159 nTPM
  • skeletal muscle: 136 nTPM
  • amygdala: 82 nTPM
  • hippocampal formation: 68 nTPM
  • basal ganglia: 68 nTPM
  • bone marrow: 63 nTPM

Single-cell type

  • neutrophils: 234 nCPM
  • ocular epithelial cells: 168 nCPM
  • monocytes: 159 nCPM
  • kupffer cells: 144 nCPM
  • myonuclei: 135 nCPM
  • macrophages: 127 nCPM

Immune cell

  • non-classical monocyte: 3.3 nTPM
  • neutrophil: 3 nTPM
  • classical monocyte: 2.8 nTPM
  • intermediate monocyte: 2.8 nTPM
  • myeloid DC: 2.6 nTPM
  • naive B-cell: 2.4 nTPM

Brain region

  • cerebral cortex: 184 nTPM
  • white matter: 121 nTPM
  • amygdala: 95 nTPM
  • thalamus: 94 nTPM
  • basal ganglia: 86 nTPM
  • hippocampal formation: 82 nTPM

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.54
gnomAD pLI
0
gnomAD missense Z
2
DepMap mean gene effect
-0.07
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of PLEKHM2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads PLEKHM2 as an antibody target. Whether an autoantibody or antibody against PLEKHM2 could matter depends on whether native PLEKHM2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PLEKHM2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label PLEKHM2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PLEKHM2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

Loading the interactive Seroatlas protein explorer...