PAX5
Paired box protein Pax-5
Also known as: BSAP, PAX-5, PAX5_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q02548
- Gene
- PAX5
- Ensembl
- ENSG00000196092
- Chromosome
- 9
- Canonical length
- 391 aa
- Protein class
- Cancer-related genes, Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
This gene encodes a member of the paired box (PAX) family of transcription factors. The central feature of this gene family is a novel, highly conserved DNA-binding motif, known as the paired box. Paired box transcription factors are important regulators in early development, and alterations in the expression of their genes are thought to contribute to neoplastic transformation. This gene encodes the B-cell lineage specific activator protein that is expressed at early, but not late stages of B-cell differentiation. Its expression has also been detected in developing CNS and testis and so the encoded protein may also play a role in neural development and spermatogenesis. This gene is located at 9p13, which is involved in t(9;14)(p13;q32) translocations recurring in small lymphocytic lymphomas of the plasmacytoid subtype, and in derived large-cell lymphomas. This translocation brings the potent E-mu enhancer of the IgH gene into close proximity of the PAX5 promoter, suggesting that the deregulation of transcription of this gene contributes to the pathogenesis of these lymphomas. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2013]
Canonical amino-acid sequenceUniProt
391 residues, UniProt reviewed canonical sequence.
>Q02548|PAX5
1 MDLEKNYPTP RTSRTGHGGV NQLGGVFVNG RPLPDVVRQR IVELAHQGVR PCDISRQLRV
61 SHGCVSKILG RYYETGSIKP GVIGGSKPKV ATPKVVEKIA EYKRQNPTMF AWEIRDRLLA
121 ERVCDNDTVP SVSSINRIIR TKVQQPPNQP VPASSHSIVS TGSVTQVSSV STDSAGSSYS
181 ISGILGITSP SADTNKRKRD EGIQESPVPN GHSLPGRDFL RKQMRGDLFT QQQLEVLDRV
241 FERQHYSDIF TTTEPIKPEQ TTEYSAMASL AGGLDDMKAN LASPTPADIG SSVPGPQSYP
301 IVTGRDLAST TLPGYPPHVP PAGQGSYSAP TLTGMVPGSE FSGSPYSHPQ YSSYNDSWRF
361 PNPGLLGSPY YYSAAARGAA PPAAATAYDR HLocalizationUniProt · AlphaFold · HPA
Whether an antibody against PAX5 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)
- 0.61
- Highest tissue expression
- 37 nTPM
Expression across tissuesHPA
Tissue
- lymph node: 37 nTPM
- tonsil: 34 nTPM
- spleen: 18 nTPM
- appendix: 14 nTPM
- bone marrow: 8.9 nTPM
- small intestine: 6.1 nTPM
Single-cell type
- b-cells: 496 nCPM
- pituicytes/fscs: 27 nCPM
- plasma cells: 19 nCPM
- late spermatids: 16 nCPM
- early spermatids: 13 nCPM
- conjunctival goblet cells: 12 nCPM
Immune cell
- memory B-cell: 39 nTPM
- naive B-cell: 26 nTPM
- basophil: 0.7 nTPM
- total PBMC: 0.7 nTPM
- NK-cell: 0.2 nTPM
- non-classical monocyte: 0.2 nTPM
Brain region
- midbrain: 14 nTPM
- pons: 9.4 nTPM
- thalamus: 3.7 nTPM
- medulla oblongata: 2.3 nTPM
- spinal cord: 1.4 nTPM
- hypothalamus: 1.1 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about PAX5.
Disease | AllUniProt
Conditions PAX5 is implicated in, by any mechanism.
- Leukemia, acute lymphoblastic, 3 (ALL3) MIM:613065
Disease | GeneticClinVar
18 pathogenic / likely-pathogenic of 605 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Acute lymphoid leukemia
- Neurodevelopmental disorder
- Leukemia, acute lymphoblastic, susceptibility to, 3
- Inborn genetic diseases
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)
- 0.17
- gnomAD pLI
- 1
- gnomAD missense Z
- 2.45
- DepMap mean gene effect
- -0.11
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 2% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- adult behavior
- B cell differentiation
- cerebral cortex development
- embryonic cranial skeleton morphogenesis
- lateral ventricle development
- negative regulation of transcription by RNA polymerase II
- nervous system development
- regulation of transcription by RNA polymerase II
- sensory organ development
- skeletal muscle cell differentiation
- spermatogenesis
- transcription by RNA polymerase II
Molecular functions
- DNA-binding transcription activator activity, RNA polymerase II-specific
- DNA-binding transcription factor activity, RNA polymerase II-specific
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of PAX5 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 PAX5 as an antibody target. Whether an autoantibody or antibody against PAX5 could matter depends on whether native PAX5 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
PAX5 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 PAX5 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
Loading the interactive Seroatlas protein explorer...