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 GRASRDPWCLocalizationUniProt · 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
- Golgi organization
- lysosome localization
- natural killer cell mediated cytotoxicity
- regulation of protein localization
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Pleckstrin homology domain
- RUN domain
- PH-like domain superfamily
- RUN domain superfamily
- PLEKHM2, PH domain-like
- PH domain
- RUN domain
- PLEKHM2 PH domain-like
- PLEKHM2, RUN domain
- Pleckstrin homology domain-containing protein M2
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.
Loading the interactive Seroatlas protein explorer...