PROP1
Homeobox protein prophet of Pit-1
Also known as: PROP1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O75360
- Gene
- PROP1
- Ensembl
- ENSG00000175325
- Chromosome
- 5
- Canonical length
- 226 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
OverviewNCBI Gene
This gene encodes a paired-like homeodomain transcription factor in the developing pituitary gland. Expression occurs prior to and is required for expression of pou domain transcription factor 1, which is responsible for pituitary development and hormone expression. Mutations in this gene have been associated with combined pituitary hormone deficiency-2 as well as deficiencies in luteinizing hormone, follicle-stimulating hormone, growth hormone, prolactin, and thyroid-stimulating hormone. [provided by RefSeq, Sep 2011]
Canonical amino-acid sequenceUniProt
226 residues, UniProt reviewed canonical sequence.
>O75360|PROP1
1 MEAERRRQAE KPKKGRVGSN LLPERHPATG TPTTTVDSSA PPCRRLPGAG GGRSRFSPQG
61 GQRGRPHSRR RHRTTFSPVQ LEQLESAFGR NQYPDIWARE SLARDTGLSE ARIQVWFQNR
121 RAKQRKQERS LLQPLAHLSP AAFSSFLPES TACPYSYAAP PPPVTCFPHP YSHALPSQPS
181 TGGAFALSHQ SEDWYPTLHP APAGHLPCPP PPPMLPLSLE PSKSWNLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PROP1 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)
- 0.64
- Highest tissue expression
- 1.1 nTPM
Expression across tissuesHPA
Tissue
- pituitary gland: 1.1 nTPM
- cerebellum: 0.1 nTPM
- adipose tissue: 0 nTPM
- adrenal gland: 0 nTPM
- amygdala: 0 nTPM
- appendix: 0 nTPM
Single-cell type
- pituitary stem cells: 0.7 nCPM
- retinal amacrine cells: 0.7 nCPM
- brain excitatory neurons: 0.5 nCPM
- brain inhibitory neurons: 0.3 nCPM
- myosatellite cells: 0.3 nCPM
- loop of henle epithelial cells: 0.2 nCPM
Immune cell
- basophil: 0 nTPM
- classical monocyte: 0 nTPM
- eosinophil: 0 nTPM
- gdT-cell: 0 nTPM
- intermediate monocyte: 0 nTPM
- MAIT T-cell: 0 nTPM
Brain region
- amygdala: 1.6 nTPM
- cerebellum: 1.6 nTPM
- cerebral cortex: 1.4 nTPM
- hippocampal formation: 1.3 nTPM
- white matter: 0.5 nTPM
- basal ganglia: 0.4 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PROP1.
Disease | AllUniProt
Conditions PROP1 is implicated in, by any mechanism.
- Pituitary hormone deficiency, combined, 2 (CPHD2) MIM:262600
Disease | GeneticClinVar
95 pathogenic / likely-pathogenic of 348 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Pituitary hormone deficiency, combined, 2
- Pituitary hormone deficiency
- Combined pituitary hormone deficiencies, genetic form
- PROP1-related disorder
- 46,XY partial gonadal dysgenesis
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)
- 0.9
- gnomAD pLI
- 0.09
- gnomAD missense Z
- 0.25
- DepMap mean gene effect
- 0.02
- 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
- apoptotic process
- blood vessel development
- cell migration
- central nervous system development
- dorsal/ventral pattern formation
- hypophysis morphogenesis
- hypothalamus cell differentiation
- negative regulation of apoptotic process
- regulation of transcription by RNA polymerase II
- somatotropin secreting cell differentiation
Molecular functions
- beta-catenin binding
- chromatin binding
- DNA-binding transcription activator activity, RNA polymerase II-specific
- DNA-binding transcription factor activity, RNA polymerase II-specific
- DNA-binding transcription repressor activity, RNA polymerase II-specific
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Helix-turn-helix motif
- Homeodomain
- Homedomain-like superfamily
- Homeobox, conserved site
- Homeodomain
- Homeobox protein prophet of Pit-1
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads PROP1 as an antibody target. Whether an autoantibody or antibody against PROP1 could matter depends on whether native PROP1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PROP1 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 PROP1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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