BTBD9
BTB/POZ domain-containing protein 9
Also known as: BTBD9_HUMAN, dJ322I12.1, KIAA1880
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q96Q07
- Gene
- BTBD9
- Ensembl
- ENSG00000183826
- Chromosome
- 6
- Canonical length
- 612 aa
- Protein class
- Disease related genes, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
This locus encodes a BTB/POZ domain-containing protein. This domain is known to be involved in protein-protein interactions. Polymorphisms at this locus have been reported to be associated with susceptibility to Restless Legs Syndrome and may also be associated with Tourette Syndrome. Alternatively spliced transcript variants have been described. [provided by RefSeq, Aug 2011]
Canonical amino-acid sequenceUniProt
612 residues, UniProt reviewed canonical sequence.
>Q96Q07|BTBD9
1 MSNSHPLRPF TAVGEIDHVH ILSEHIGALL IGEEYGDVTF VVEKKRFPAH RVILAARCQY
61 FRALLYGGMR ESQPEAEIPL QDTTAEAFTM LLKYIYTGRA TLTDEKEEVL LDFLSLAHKY
121 GFPELEDSTS EYLCTILNIQ NVCMTFDVAS LYSLPKLTCM CCMFMDRNAQ EVLSSEGFLS
181 LSKTALLNIV LRDSFAAPEK DIFLALLNWC KHNSKENHAE IMQAVRLPLM SLTELLNVVR
241 PSGLLSPDAI LDAIKVRSES RDMDLNYRGM LIPEENIATM KYGAQVVKGE LKSALLDGDT
301 QNYDLDHGFS RHPIDDDCRS GIEIKLGQPS IINHIRILLW DRDSRSYSYF IEVSMDELDW
361 VRVIDHSQYL CRSWQKLYFP ARVCRYIRIV GTHNTVNKIF HIVAFECMFT NKTFTLEKGL
421 IVPMENVATI ADCASVIEGV SRSRNALLNG DTKNYDWDSG YTCHQLGSGA IVVQLAQPYM
481 IGSIRLLLWD CDDRSYSYYV EVSTNQQQWT MVADRTKVSC KSWQSVTFER QPASFIRIVG
541 THNTANEVFH CVHFECPEQQ SSQKEENSEE SGTGDTSLAG QQLDSHALRA PSGSSLPSSP
601 GSNSRSPNRQ HQLocalizationUniProt · AlphaFold · HPA
Whether an antibody against BTBD9 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)
- 0.31
- Highest tissue expression
- 13 nTPM
Expression across tissuesHPA
Tissue
- parathyroid gland: 13 nTPM
- cerebral cortex: 13 nTPM
- basal ganglia: 12 nTPM
- hippocampal formation: 9.7 nTPM
- amygdala: 9.6 nTPM
- lung: 8.7 nTPM
Single-cell type
- alveolar cells type 2: 935 nCPM
- transitional alveolar cells: 864 nCPM
- choroid plexus epithelial cells: 791 nCPM
- respiratory ciliated cells: 776 nCPM
- lactotrophs: 771 nCPM
- somatotrophs: 760 nCPM
Immune cell
- basophil: 9.4 nTPM
- neutrophil: 3.6 nTPM
- T-reg: 3.6 nTPM
- naive B-cell: 3.3 nTPM
- non-classical monocyte: 3.2 nTPM
- eosinophil: 2.7 nTPM
Brain region
- cerebral cortex: 74 nTPM
- hippocampal formation: 66 nTPM
- amygdala: 54 nTPM
- basal ganglia: 54 nTPM
- choroid plexus: 49 nTPM
- white matter: 48 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about BTBD9.
Disease | AllUniProt
Conditions BTBD9 is implicated in, by any mechanism.
- Restless legs syndrome 6 (RLS6) MIM:611185
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)
- 0.87
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.93
- 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
- adult locomotory behavior
- circadian behavior
- long-term memory
- modulation of chemical synaptic transmission
- multicellular organismal-level iron ion homeostasis
- regulation of synaptic vesicle endocytosis
- sensory perception of temperature stimulus
- serotonin metabolic process
- circadian sleep/wake cycle, non-REM sleep
Cellular components
Protein domainsUniProt · Pfam · InterPro
- BTB/POZ domain
- Coagulation factor 5/8, C-terminal domain
- Galactose-binding-like domain superfamily
- SKP1/BTB/POZ domain superfamily
- BTB/Kelch-associated
- BTB/POZ domain
- F5/8 type C domain
- BTB And C-terminal Kelch
- BTBD9, BACK-like domain
- BTB/POZ domain-containing protein 9
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads BTBD9 as an antibody target. Whether an autoantibody or antibody against BTBD9 could matter depends on whether native BTBD9 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
BTBD9 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 BTBD9 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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