Seroatlas · Human Serome Atlas

SERPINE2

Glia-derived nexin

Also known as: GDN, GDN_HUMAN, nexin, PI7, PN1, PNI

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

Protein identityUniProt · HPA

UniProt accession
P07093
Gene
SERPINE2
Ensembl
ENSG00000135919
Chromosome
2
Canonical length
398 aa
Protein class
Plasma proteins, Predicted secreted proteins
Subcellular location
Golgi apparatus
Secretome location
Secreted in female reproductive system

OverviewNCBI Gene

This gene encodes a member of the serpin family of proteins, a group of proteins that inhibit serine proteases. Thrombin, urokinase, plasmin and trypsin are among the proteases that this family member can inhibit. This gene is a susceptibility gene for chronic obstructive pulmonary disease and for emphysema. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Aug 2012]

Canonical amino-acid sequenceUniProt

398 residues, UniProt reviewed canonical sequence.

>P07093|SERPINE2
     1  MNWHLPLFLL ASVTLPSICS HFNPLSLEEL GSNTGIQVFN QIVKSRPHDN IVISPHGIAS
    61  VLGMLQLGAD GRTKKQLAMV MRYGVNGVGK ILKKINKAIV SKKNKDIVTV ANAVFVKNAS
   121  EIEVPFVTRN KDVFQCEVRN VNFEDPASAC DSINAWVKNE TRDMIDNLLS PDLIDGVLTR
   181  LVLVNAVYFK GLWKSRFQPE NTKKRTFVAA DGKSYQVPML AQLSVFRCGS TSAPNDLWYN
   241  FIELPYHGES ISMLIALPTE SSTPLSAIIP HISTKTIDSW MSIMVPKRVQ VILPKFTAVA
   301  QTDLKEPLKV LGITDMFDSS KANFAKITTG SENLHVSHIL QKAKIEVSED GTKASAATTA
   361  ILIARSSPPW FIVDRPFLFF IRHNPTGAVL FMGQINKP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against SERPINE2 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
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.26
Highest tissue expression
1,025 nTPM

Expression across tissuesHPA

Tissue

  • placenta: 1,025 nTPM
  • ovary: 277 nTPM
  • cerebral cortex: 153 nTPM
  • urinary bladder: 137 nTPM
  • amygdala: 136 nTPM
  • midbrain: 133 nTPM

Single-cell type

  • extravillous trophoblasts: 941 nCPM
  • granulosa cells: 676 nCPM
  • fibroblasts: 472 nCPM
  • bergmann glia: 462 nCPM
  • ovarian stromal cells: 446 nCPM
  • melanocytes: 362 nCPM

Immune cell

  • NK-cell: 23 nTPM
  • naive CD4 T-cell: 13 nTPM
  • naive CD8 T-cell: 6.9 nTPM
  • total PBMC: 2.7 nTPM
  • naive B-cell: 1.2 nTPM
  • memory B-cell: 0.8 nTPM

Brain region

  • medulla oblongata: 206 nTPM
  • midbrain: 191 nTPM
  • thalamus: 182 nTPM
  • hypothalamus: 177 nTPM
  • spinal cord: 168 nTPM
  • white matter: 144 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about SERPINE2.

Disease | ImmuneIEDB

Conditions an epitope on SERPINE2 was assayed in.

ReferencesPubMed · IEDB

Publications for SERPINE2 from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Reference: AutoantibodyPubMed

3 publications

Reference: T cellIEDB

1 publication

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. IEDB — curated epitope assays from the Immune Epitope Database (Vita et al., Nucleic Acids Research 2019). Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

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)
0.45
gnomAD pLI
0.73
gnomAD missense Z
1.59
DepMap mean gene effect
0.15
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% 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

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads SERPINE2 as an antibody target. Whether an autoantibody or antibody against SERPINE2 could matter depends on whether native SERPINE2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

SERPINE2 is annotated as secreted, so native SERPINE2 circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Annotation status

The present source text does not explicitly label SERPINE2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/SERPINE2. 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).

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