Seroatlas · Human Serome Atlas

BCL6

B-cell lymphoma 6 protein

Also known as: BCL5, BCL6_HUMAN, BCL6A, LAZ3, ZBTB27, ZNF51

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

Protein identityUniProt · HPA

UniProt accession
P41182
Gene
BCL6
Ensembl
ENSG00000113916
Chromosome
3
Canonical length
706 aa
Protein class
Cancer-related genes, Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
Subcellular location
Nucleoplasm,Golgi apparatus
Quaternary structure
Homodimer

OverviewNCBI Gene

The protein encoded by this gene is a zinc finger transcription factor and contains an N-terminal POZ domain. This protein acts as a sequence-specific repressor of transcription, and has been shown to modulate the transcription of STAT-dependent IL-4 responses of B cells. This protein can interact with a variety of POZ-containing proteins that function as transcription corepressors. This gene is found to be frequently translocated and hypermutated in diffuse large-cell lymphoma (DLCL), and may be involved in the pathogenesis of DLCL. Alternatively spliced transcript variants encoding different protein isoforms have been found for this gene. [provided by RefSeq, Aug 2015]

Canonical amino-acid sequenceUniProt

706 residues, UniProt reviewed canonical sequence.

>P41182|BCL6
     1  MASPADSCIQ FTRHASDVLL NLNRLRSRDI LTDVVIVVSR EQFRAHKTVL MACSGLFYSI
    61  FTDQLKCNLS VINLDPEINP EGFCILLDFM YTSRLNLREG NIMAVMATAM YLQMEHVVDT
   121  CRKFIKASEA EMVSAIKPPR EEFLNSRMLM PQDIMAYRGR EVVENNLPLR SAPGCESRAF
   181  APSLYSGLST PPASYSMYSH LPVSSLLFSD EEFRDVRMPV ANPFPKERAL PCDSARPVPG
   241  EYSRPTLEVS PNVCHSNIYS PKETIPEEAR SDMHYSVAEG LKPAAPSARN APYFPCDKAS
   301  KEEERPSSED EIALHFEPPN APLNRKGLVS PQSPQKSDCQ PNSPTESCSS KNACILQASG
   361  SPPAKSPTDP KACNWKKYKF IVLNSLNQNA KPEGPEQAEL GRLSPRAYTA PPACQPPMEP
   421  ENLDLQSPTK LSASGEDSTI PQASRLNNIV NRSMTGSPRS SSESHSPLYM HPPKCTSCGS
   481  QSPQHAEMCL HTAGPTFPEE MGETQSEYSD SSCENGAFFC NECDCRFSEE ASLKRHTLQT
   541  HSDKPYKCDR CQASFRYKGN LASHKTVHTG EKPYRCNICG AQFNRPANLK THTRIHSGEK
   601  PYKCETCGAR FVQVAHLRAH VLIHTGEKPY PCEICGTRFR HLQTLKSHLR IHTGEKPYHC
   661  EKCNLHFRHK SQLRLHLRQK HGAITNTKVQ YRVSATDLPP ELPKAC

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against BCL6 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)
0.55
Highest tissue expression
528 nTPM

Expression across tissuesHPA

Tissue

  • skeletal muscle: 528 nTPM
  • skin: 171 nTPM
  • adipose tissue: 153 nTPM
  • blood vessel: 143 nTPM
  • breast: 140 nTPM
  • spleen: 120 nTPM

Single-cell type

  • neutrophils: 2,732 nCPM
  • myonuclei: 503 nCPM
  • neutrophil progenitors: 335 nCPM
  • adipocytes: 287 nCPM
  • thymic myoid cells: 264 nCPM
  • smooth muscle cells: 256 nCPM

Immune cell

  • neutrophil: 270 nTPM
  • non-classical monocyte: 77 nTPM
  • intermediate monocyte: 37 nTPM
  • classical monocyte: 33 nTPM
  • total PBMC: 31 nTPM
  • myeloid DC: 25 nTPM

Brain region

  • medulla oblongata: 188 nTPM
  • cerebellum: 146 nTPM
  • pons: 117 nTPM
  • thalamus: 116 nTPM
  • hypothalamus: 113 nTPM
  • white matter: 100 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about BCL6.

Disease | ImmuneIEDB

Conditions an epitope on BCL6 was assayed in.

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)
0.33
gnomAD pLI
0.96
gnomAD missense Z
2.25
DepMap mean gene effect
-0.13
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% 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

InteractionsUniProt · HPA

Protein binding partners of BCL6 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 BCL6 as an antibody target. Whether an autoantibody or antibody against BCL6 could matter depends on whether native BCL6 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

BCL6 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 BCL6 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/BCL6. 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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