Seroatlas · Human Serome Atlas

PLCXD1

PI-PLC X domain-containing protein 1

Also known as: FLJ11323, PLCX1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q9NUJ7
Gene
PLCXD1
Ensembl
ENSG00000182378
Chromosome
X
Canonical length
323 aa
Protein class
Predicted intracellular proteins
Subcellular location
Cytosol

OverviewNCBI Gene

This gene is the most terminal protein-coding gene in the pseudoautosomal (PAR) region on chromosomes X and Y. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

Canonical amino-acid sequenceUniProt

323 residues, UniProt reviewed canonical sequence.

>Q9NUJ7|PLCXD1
     1  MGGQVSASNS FSRLHCRNAN EDWMSALCPR LWDVPLHHLS IPGSHDTMTY CLNKKSPISH
    61  EESRLLQLLN KALPCITRPV VLKWSVTQAL DVTEQLDAGV RYLDLRIAHM LEGSEKNLHF
   121  VHMVYTTALV EDTLTEISEW LERHPREVVI LACRNFEGLS EDLHEYLVAC IKNIFGDMLC
   181  PRGEVPTLRQ LWSRGQQVIV SYEDESSLRR HHELWPGVPY WWGNRVKTEA LIRYLETMKS
   241  CGRPGGLFVA GINLTENLQY VLAHPSESLE KMTLPNLPRL SAWVREQCPG PGSRCTNIIA
   301  GDFIGADGFV SDVIALNQKL LWC

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PLCXD1 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
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.25
Highest tissue expression
34 nTPM

Expression across tissuesHPA

Tissue

  • cerebellum: 34 nTPM
  • bone marrow: 31 nTPM
  • stomach: 25 nTPM
  • adipose tissue: 18 nTPM
  • spleen: 18 nTPM
  • skin: 18 nTPM

Single-cell type

  • esophageal apical cells: 179 nCPM
  • foveolar cells: 110 nCPM
  • megakaryocyte-erythroid progenitors: 87 nCPM
  • erythrocyte progenitors: 78 nCPM
  • monocytes: 59 nCPM
  • syncytiotrophoblasts: 48 nCPM

Immune cell

  • non-classical monocyte: 9.1 nTPM
  • intermediate monocyte: 6 nTPM
  • naive B-cell: 5.6 nTPM
  • eosinophil: 5.4 nTPM
  • basophil: 3.5 nTPM
  • T-reg: 3.2 nTPM

Brain region

  • cerebral cortex: 67 nTPM
  • cerebellum: 55 nTPM
  • white matter: 55 nTPM
  • basal ganglia: 47 nTPM
  • pons: 37 nTPM
  • hippocampal formation: 37 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)
1.63
gnomAD pLI
0
gnomAD missense Z
-1.53

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads PLCXD1 as an antibody target. Whether an autoantibody or antibody against PLCXD1 could matter depends on whether native PLCXD1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PLCXD1 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 PLCXD1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PLCXD1. 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...