BLCAP
gene geneOn this page
Also known as BC10
Summary
BLCAP (BLCAP apoptosis inducing factor, HGNC:1055) is a protein-coding gene on chromosome 20q11.23, encoding Apoptosis inducing factor BLCAP (P62952). Acts as a tumor suppressor; induces growth arrest at G(1)/S checkpoint and apoptosis via RB1-dependent and p53/TP53- and NF-kappa-B-independent mechanisms.
This gene encodes a protein that reduces cell growth by stimulating apoptosis. Alternative splicing and the use of alternative promoters result in multiple transcript variants encoding the same protein. This gene is imprinted in brain where different transcript variants are expressed from each parental allele. Transcript variants initiating from the upstream promoter are expressed preferentially from the maternal allele, while transcript variants initiating downstream of the interspersed NNAT gene (GeneID:4826) are expressed from the paternal allele. Transcripts at this locus may also undergo A to I editing, resulting in amino acid changes at three positions in the N-terminus of the protein.
Source: NCBI Gene 10904 — RefSeq curated summary.
At a glance
- GWAS associations: 1
- Clinical variants (ClinVar): 22 total
- GTEx eGene: eQTL in 14 tissues, sQTL in 4 (q < 0.05)
- Constraint (gnomAD): pLI 0.72 (intermediate), LOEUF 0.81 (unconstrained)
- MANE Select transcript:
NM_006698
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:1055 |
| Approved symbol | BLCAP |
| Name | BLCAP apoptosis inducing factor |
| Location | 20q11.23 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | BC10 |
| Ensembl gene | ENSG00000166619 |
| Ensembl biotype | protein_coding |
| OMIM | 613110 |
| Entrez | 10904 |
Gene structure
Transcript identifiers
Ensembl transcripts: 31 — 27 protein_coding, 4 protein_coding_CDS_not_defined
MANE Select: ENST00000373537
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 2, TSL 3: 6, TSL 4: 5
ENST00000373537, ENST00000397131, ENST00000397134, ENST00000397135, ENST00000397137, ENST00000411780, ENST00000414080, ENST00000414542, ENST00000432507, ENST00000445723, ENST00000447625, ENST00000456058, ENST00000467603, ENST00000613961, ENST00000894262, ENST00000894263, ENST00000894264, ENST00000894265, ENST00000894266, ENST00000894267, ENST00000917217, ENST00000917218, ENST00000917219, ENST00000917220, ENST00000963567, ENST00000963568, ENST00000963569, ENST00000963570, ENST00000963571, ENST00000963572, ENST00001134331
RefSeq mRNA: 7 — MANE Select: NM_006698
NM_001167820, NM_001167821, NM_001167822, NM_001167823, NM_001317074, NM_001317075, NM_006698
CCDS: CCDS13295
Canonical transcript exons
ENST00000373537 — 2 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001527437 | 37517417 | 37519350 |
| ENSE00003842570 | 37527793 | 37527876 |
Expression profiles
Bgee: expression breadth ubiquitous, 294 present calls, max score 99.74.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 65.0875 / max 665.6993, expressed in 1822 samples.
Highest expression (Bgee): secondary oocyte, oocyte, nucleus accumbens, middle frontal gyrus, tibialis anterior.
Genetic regulation across tissues (GTEx eQTL / sQTL)
BLCAP is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 14 tissues and its splicing (sQTL) in 4 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
18 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Esophagus Mucosa | eqtl | 4.3e-24 | -0.31 | 20:37529088:A:C |
| Artery Tibial | eqtl | 5.3e-08 | -0.21 | 20:37473881:G:A |
| Nerve Tibial | eqtl | 8.5e-05 | +0.18 | 20:37466486:C:T |
| Brain Caudate basal ganglia | eqtl | 6.4e-04 | +0.09 | 20:37454878:T:C |
| Cells Cultured fibroblasts | eqtl | 7.8e-04 | +0.09 | 20:37443705:G:GC |
| Heart Atrial Appendage | sqtl | 8.8e-04 | +0.44 | 20:37513430:T:A |
| Skin Not Sun Exposed Suprapubic | eqtl | 9.9e-04 | +0.15 | 20:37473881:G:A |
| Artery Aorta | eqtl | 2.9e-03 | -0.20 | 20:37469522:T:C |
| Skin Sun Exposed Lower leg | sqtl | 4.5e-03 | +0.33 | 20:37555717:T:G |
| Thyroid | eqtl | 6.8e-03 | -0.51 | 20:38311010:C:T |
| Skin Not Sun Exposed Suprapubic | sqtl | 7.0e-03 | +0.31 | 20:37567180:C:T |
| Pancreas | eqtl | 8.6e-03 | +0.25 | 20:37466486:C:T |
| Skin Sun Exposed Lower leg | eqtl | 1.1e-02 | +0.10 | 20:37505832:A:G |
| Testis | eqtl | 1.3e-02 | +0.16 | 20:37562294:T:C |
| Stomach | eqtl | 1.4e-02 | -0.35 | 20:37264022:C:T |
| Colon Sigmoid | sqtl | 1.9e-02 | +0.72 | 20:38389167:G:C |
| Adipose Subcutaneous | eqtl | 2.3e-02 | +0.27 | 20:37612831:CTGGGATCATCCCAGTTTGG:C |
| Brain Cortex | eqtl | 4.7e-02 | -0.21 | 20:37886262:G:A |
FANTOM5 promoters
7 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 187200 | 52.7137 | 1821 |
| 187199 | 9.0444 | 1690 |
| 187201 | 2.9019 | 1530 |
| 187196 | 0.2951 | 45 |
| 187198 | 0.0531 | 12 |
| 187197 | 0.0529 | 21 |
| 187195 | 0.0264 | 10 |
Top tissues by expression
showing 100 of 295 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| secondary oocyte | CL:0000655 | 99.74 | gold quality |
| oocyte | CL:0000023 | 99.34 | gold quality |
| nucleus accumbens | UBERON:0001882 | 99.10 | gold quality |
| middle frontal gyrus | UBERON:0002702 | 99.05 | gold quality |
| tibialis anterior | UBERON:0001385 | 99.02 | gold quality |
| gluteal muscle | UBERON:0002000 | 99.00 | gold quality |
| gastrocnemius | UBERON:0001388 | 98.98 | gold quality |
| right uterine tube | UBERON:0001302 | 98.93 | gold quality |
| deltoid | UBERON:0001476 | 98.81 | gold quality |
| adenohypophysis | UBERON:0002196 | 98.69 | gold quality |
| Brodmann (1909) area 23 | UBERON:0013554 | 98.68 | gold quality |
| pituitary gland | UBERON:0000007 | 98.66 | gold quality |
| skeletal muscle tissue of rectus abdominis | UBERON:0004511 | 98.63 | gold quality |
| frontal pole | UBERON:0002795 | 98.55 | gold quality |
| caudate nucleus | UBERON:0001873 | 98.53 | gold quality |
| muscle of leg | UBERON:0001383 | 98.52 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 98.50 | gold quality |
| triceps brachii | UBERON:0001509 | 98.48 | gold quality |
| superior vestibular nucleus | UBERON:0007227 | 98.45 | gold quality |
| muscle organ | UBERON:0001630 | 98.43 | gold quality |
| middle temporal gyrus | UBERON:0002771 | 98.42 | gold quality |
| vastus lateralis | UBERON:0001379 | 98.41 | gold quality |
| hypothalamus | UBERON:0001898 | 98.39 | gold quality |
| putamen | UBERON:0001874 | 98.35 | gold quality |
| quadriceps femoris | UBERON:0001377 | 98.22 | gold quality |
| skeletal muscle tissue | UBERON:0001134 | 98.20 | gold quality |
| lateral nuclear group of thalamus | UBERON:0002736 | 98.10 | gold quality |
| superior frontal gyrus | UBERON:0002661 | 98.08 | gold quality |
| pons | UBERON:0000988 | 98.00 | gold quality |
| forebrain | UBERON:0001890 | 97.96 | gold quality |
| Brodmann (1909) area 9 | UBERON:0013540 | 97.95 | gold quality |
| substantia nigra pars compacta | UBERON:0001965 | 97.94 | gold quality |
| amygdala | UBERON:0001876 | 97.92 | gold quality |
| prefrontal cortex | UBERON:0000451 | 97.89 | gold quality |
| dorsolateral prefrontal cortex | UBERON:0009834 | 97.89 | gold quality |
| telencephalon | UBERON:0001893 | 97.88 | gold quality |
| cingulate cortex | UBERON:0003027 | 97.88 | gold quality |
| temporal lobe | UBERON:0001871 | 97.87 | gold quality |
| anterior cingulate cortex | UBERON:0009835 | 97.86 | gold quality |
| dorsal motor nucleus of vagus nerve | UBERON:0002870 | 97.83 | gold quality |
| primary visual cortex | UBERON:0002436 | 97.81 | gold quality |
| paraflocculus | UBERON:0005351 | 97.79 | gold quality |
| Brodmann (1909) area 46 | UBERON:0006483 | 97.78 | gold quality |
| parietal lobe | UBERON:0001872 | 97.77 | gold quality |
| nipple | UBERON:0002030 | 97.76 | gold quality |
| frontal cortex | UBERON:0001870 | 97.75 | gold quality |
| postcentral gyrus | UBERON:0002581 | 97.75 | gold quality |
| cerebral cortex | UBERON:0000956 | 97.74 | gold quality |
| biceps brachii | UBERON:0001507 | 97.74 | gold quality |
| entorhinal cortex | UBERON:0002728 | 97.74 | gold quality |
| neocortex | UBERON:0001950 | 97.72 | gold quality |
| lateral globus pallidus | UBERON:0002476 | 97.72 | gold quality |
| skeletal muscle tissue of biceps brachii | UBERON:0004502 | 97.72 | gold quality |
| brain | UBERON:0000955 | 97.71 | gold quality |
| ventral tegmental area | UBERON:0002691 | 97.70 | gold quality |
| Ammon’s horn | UBERON:0001954 | 97.68 | gold quality |
| occipital lobe | UBERON:0002021 | 97.68 | gold quality |
| right frontal lobe | UBERON:0002810 | 97.66 | gold quality |
| diaphragm | UBERON:0001103 | 97.64 | gold quality |
| central nervous system | UBERON:0001017 | 97.63 | gold quality |
| medulla oblongata | UBERON:0001896 | 97.62 | gold quality |
| cortical plate | UBERON:0005343 | 97.60 | gold quality |
| Brodmann (1909) area 10 | UBERON:0013541 | 97.59 | gold quality |
| body of tongue | UBERON:0011876 | 97.51 | gold quality |
| substantia nigra pars reticulata | UBERON:0001966 | 97.44 | gold quality |
| medial globus pallidus | UBERON:0002477 | 97.40 | gold quality |
| choroid plexus epithelium | UBERON:0003911 | 97.37 | gold quality |
| muscle tissue | UBERON:0002385 | 97.36 | gold quality |
| pharyngeal mucosa | UBERON:0000355 | 97.35 | gold quality |
| globus pallidus | UBERON:0001875 | 97.22 | gold quality |
| skin of leg | UBERON:0001511 | 97.16 | gold quality |
| CA1 field of hippocampus | UBERON:0003881 | 97.16 | gold quality |
| renal medulla | UBERON:0000362 | 97.15 | gold quality |
| tongue squamous epithelium | UBERON:0006919 | 97.14 | gold quality |
| skin of abdomen | UBERON:0001416 | 97.10 | gold quality |
| esophagus squamous epithelium | UBERON:0006920 | 97.06 | gold quality |
| endothelial cell | CL:0000115 | 97.03 | gold quality |
| tongue | UBERON:0001723 | 97.01 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 97.00 | gold quality |
| midbrain | UBERON:0001891 | 96.99 | gold quality |
| orbitofrontal cortex | UBERON:0004167 | 96.96 | gold quality |
| substantia nigra | UBERON:0002038 | 96.93 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 96.87 | gold quality |
| cerebellar cortex | UBERON:0002129 | 96.85 | gold quality |
| esophagus mucosa | UBERON:0002469 | 96.83 | gold quality |
| inferior olivary complex | UBERON:0002127 | 96.78 | gold quality |
| cerebellum | UBERON:0002037 | 96.77 | gold quality |
| zone of skin | UBERON:0000014 | 96.76 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 96.73 | gold quality |
| buccal mucosa cell | CL:0002336 | 96.65 | gold quality |
| epithelium of nasopharynx | UBERON:0001951 | 96.64 | gold quality |
| epithelium of esophagus | UBERON:0001976 | 96.56 | gold quality |
| apex of heart | UBERON:0002098 | 96.56 | gold quality |
| vagina | UBERON:0000996 | 96.48 | gold quality |
| gingival epithelium | UBERON:0001949 | 96.37 | gold quality |
| squamous epithelium | UBERON:0006914 | 96.33 | gold quality |
| penis | UBERON:0000989 | 96.32 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 96.31 | gold quality |
| fallopian tube | UBERON:0003889 | 96.24 | gold quality |
| prostate gland | UBERON:0002367 | 96.22 | gold quality |
Single-cell (SCXA)
Detected in 3 experiment(s), a significant marker in 3.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-GEOD-93593 | yes | 1521.68 |
| E-HCAD-5 | yes | 641.19 |
| E-ANND-3 | yes | 16.72 |
HPA expression
RNA tissue specificity: Tissue enhanced
showing 60 of 76 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM |
|---|---|---|
| Basal ganglia | tissue | 1196.4 |
| Septum | tissue | 1092.6 |
| Ventral forebrain | tissue | 969.4 |
| Hypothalamus | tissue | 932.5 |
| Putamen | tissue | 842.4 |
| Hippocampal formation | tissue | 835.0 |
| Thalamus | tissue | 730.5 |
| Amygdala | tissue | 718.3 |
| Prefrontal cortex | tissue | 696.9 |
| Cerebral cortex | tissue | 696.9 |
| Pons | tissue | 690.6 |
| Motor cortex | tissue | 689.2 |
| Somatosensory cortex | tissue | 653.1 |
| Retrosplenial and cingulate cortex | tissue | 652.7 |
| Substantia nigra | tissue | 630.5 |
| Retrosplenial cortex | tissue | 626.2 |
| Midbrain | tissue | 607.9 |
| Entorhinal cortex | tissue | 587.7 |
| Periaqueductal gray | tissue | 584.4 |
| Superior colliculi | tissue | 583.2 |
| Temporal cortex | tissue | 579.2 |
| Insular cortex | tissue | 579.1 |
| Occipital cortex | tissue | 577.6 |
| Medulla oblongata | tissue | 480.4 |
| Cerebellum | tissue | 416.4 |
| Spinal cord | tissue | 372.0 |
| Olfactory bulb | tissue | 366.9 |
| Skeletal muscle | tissue | 316.5 |
| Nucleus accumbens | tissue | 280.0 |
| Corpus callosum | tissue | 254.0 |
| Choroid plexus | tissue | 219.7 |
| Locus coeruleus | tissue | 192.1 |
| Postcentral gyrus | tissue | 156.6 |
| Hippocampus | tissue | 147.3 |
| Pituitary gland | tissue | 145.4 |
| Fallopian tube | tissue | 132.7 |
| Tongue | tissue | 112.2 |
| Skin 1 | tissue | 83.4 |
| Caudate putamen | tissue | 82.1 |
| Frontal cortex | tissue | 72.4 |
| Placenta | tissue | 71.4 |
| Liver | tissue | 66.1 |
| Retina | tissue | 65.7 |
| Heart muscle | tissue | 65.6 |
| Vagina | tissue | 58.9 |
| Kidney | tissue | 55.8 |
| Adipose tissue | tissue | 53.4 |
| Seminal vesicle | tissue | 53.1 |
| Urinary bladder | tissue | 52.6 |
| Tonsil | tissue | 49.7 |
| Epididymis | tissue | 49.5 |
| Rectum | tissue | 49.0 |
| Prostate | tissue | 49.0 |
| Esophagus | tissue | 48.8 |
| Salivary gland | tissue | 48.4 |
| Duodenum | tissue | 48.1 |
| Parathyroid gland | tissue | 47.8 |
| Small intestine | tissue | 43.7 |
| Adrenal gland | tissue | 43.4 |
| Breast | tissue | 42.7 |
Brain sub-regions (HPA Brain Atlas): detected in 189; highest nTPM — Ventral hippocampus (835.0), Subiculum (752.2), Dorsal hippocampus (702.4), Dorsal spinal cord (372.0), Ventral spinal cord (323.9).
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): GATA3
miRNA regulators (miRDB)
Targeting BLCAP by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).
showing 30 of 147 miRNAs:
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-8485 | 100.00 | 77.57 | 4731 |
| HSA-MIR-200B-3P | 100.00 | 73.31 | 2693 |
| HSA-MIR-200C-3P | 100.00 | 73.35 | 2685 |
| HSA-MIR-429 | 100.00 | 73.44 | 2698 |
| HSA-MIR-340-5P | 100.00 | 72.50 | 4437 |
| HSA-MIR-4747-5P | 100.00 | 67.90 | 2681 |
| HSA-MIR-5196-5P | 100.00 | 67.98 | 2761 |
| HSA-MIR-513A-5P | 100.00 | 69.77 | 2465 |
| HSA-MIR-3613-3P | 100.00 | 76.36 | 7965 |
| HSA-MIR-3925-3P | 100.00 | 69.95 | 1237 |
| HSA-MIR-513B-5P | 99.99 | 69.96 | 2150 |
| HSA-MIR-3662 | 99.99 | 73.82 | 5684 |
| HSA-MIR-19A-3P | 99.98 | 75.33 | 2762 |
| HSA-MIR-19B-3P | 99.98 | 75.44 | 2754 |
| HSA-MIR-607 | 99.97 | 73.62 | 5593 |
| HSA-MIR-9-3P | 99.96 | 70.88 | 2068 |
| HSA-MIR-302E | 99.96 | 70.74 | 2669 |
| HSA-MIR-6778-3P | 99.96 | 67.29 | 2693 |
| HSA-MIR-548AJ-3P | 99.96 | 73.38 | 5345 |
| HSA-MIR-548X-3P | 99.96 | 73.38 | 5345 |
| HSA-MIR-23A-3P | 99.95 | 74.24 | 3163 |
| HSA-MIR-23B-3P | 99.95 | 74.24 | 3163 |
| HSA-MIR-23C | 99.95 | 73.92 | 3192 |
| HSA-MIR-6755-5P | 99.95 | 65.59 | 464 |
| HSA-MIR-651-3P | 99.94 | 73.48 | 5177 |
| HSA-MIR-548J-3P | 99.94 | 72.61 | 4881 |
| HSA-MIR-539-5P | 99.93 | 70.30 | 2855 |
| HSA-MIR-548AE-3P | 99.93 | 72.66 | 4867 |
| HSA-MIR-548AH-3P | 99.93 | 72.54 | 4872 |
| HSA-MIR-548AM-3P | 99.93 | 72.54 | 4872 |
Functional genomics
gnomAD constraint: pLI 0.719, LOEUF 0.81, missense Z 1.59 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD RMC): no regional variation along ENST00000373537 — one region, missense o/e 0.61.
Literature-anchored findings (GeneRIF, showing 12)
- might be a potential tumor suppressor gene in cervical carcinoma. (PMID:16675915)
- BLCAP may play a role not only in regulating cell proliferation but also in coordinating apoptosis and cell cycle via a novel way independent of p53 and NF-kappaB. (PMID:17031575)
- Blcap is imprinted in mouse and human brain, but not in other mouse tissues. (PMID:18836209)
- Data show that loss of BLCAP expression is associated with tumor progression. (PMID:19783793)
- observed a general decrease in BLCAP-editing level in astrocytomas, bladder cancer and colorectal cancer when compared with the related normal tissues (PMID:19908260)
- Immunoexpression analysis and prognostic value of BLCAP in breast cancer (PMID:23049907)
- Data show that the RNA-edited bladder cancer associated protein (BLCAP) gene may stably promote cell proliferation. (PMID:25499081)
- the functional association of BLCAP and Rb1 might play important roles in proliferation and apoptosis of HeLa cells. (PMID:26986503)
- Upregulated miR-9-3p has a positive role in human MTC progression by regulating the growth and apoptosis of cancer cells via targeting BLCAP. (PMID:27938505)
- Our findings reveal that A-to-I RNA editing events alter the genetically coded amino acid in BLCAP YXXQ motif, which drive the progression of cervical carcinogenesis through regulating STAT3 signaling pathway. (PMID:28455960)
- data indicates that Blcap is a novel Stat3 interaction partner and suggests a role for Blcap in the Stat3-mediated progression of precancerous lesions to invasive tumors of the bladder (PMID:29190807)
- MALAT1 regulates BLCAP mRNA expression through binding to miR-339-5p. (PMID:30683807)
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | blcap | ENSDARG00000052073 |
| mus_musculus | Blcap | ENSMUSG00000067787 |
| rattus_norvegicus | Blcap | ENSRNOG00000024437 |
| drosophila_melanogaster | bc10 | FBGN0040239 |
| caenorhabditis_elegans | Y73E7A.6 | WBGENE00022273 |
Mouse-model phenotypes
Observed phenotypes of the mouse ortholog (MGI:1858907) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 2 distinct phenotype terms.
| Mouse phenotype (MP) | Records |
|---|---|
| decreased circulating alkaline phosphatase level | 1 |
| increased fasting circulating glucose level | 1 |
Additional cross-species homologs
Sequence homologs in species beyond Ensembl Compara’s model organisms, by Diamond local protein alignment (% sequence identity; best hit per species). Lower-identity rows are more distant homologs. The matched accessions’ gene symbols aren’t in biobtree yet, so each row shows the UniProt accession.
| Organism | UniProt | Identity | Method |
|---|---|---|---|
| Felis catus | P62953 | 100.0% | Diamond |
| Bos taurus | P62954 | 100.0% | Diamond |
| Xenopus laevis | Q5EAT6 | 100.0% | Diamond |
| Xenopus tropicalis | Q5M8I8 | 100.0% | Diamond |
| Pongo abelii | Q5R692 | 100.0% | Diamond |
| Macaca fascicularis | Q4R504 | 98.9% | Diamond |
| Carassius auratus | Q90WT7 | 98.9% | Diamond |
| Didelphis virginiana | Q4G2S9 | 94.3% | Diamond |
Genomic neighbors (locus context)
Genes flanking this one on the chromosome (NCBI/Entrez gene neighborhood). Positional context only — some neighbors share regulatory elements (bidirectional promoters, antisense/overlapping transcripts), but chromosomal adjacency is not itself a functional relationship (see Interactions for that).
| Symbol | Type | Entrez |
|---|---|---|
| LINC00489 | ncRNA | 100861522 |
| NNAT | protein-coding | 4826 |
| MANBAL | protein-coding | 63905 |
| SRC | protein-coding | 6714 |
| LINC01746 | ncRNA | 105372608 |
Protein
Protein identifiers
Apoptosis inducing factor BLCAP — P62952 (reviewed: P62952)
Alternative names: Bladder cancer 10 kDa protein, Bladder cancer-associated protein
All UniProt accessions (4): A0A1Y8ELN7, A2A2K8, A2A2K9, P62952
UniProt curated annotations — full annotation on UniProt →
Function. Acts as a tumor suppressor; induces growth arrest at G(1)/S checkpoint and apoptosis via RB1-dependent and p53/TP53- and NF-kappa-B-independent mechanisms. Modulates expression of genes involved in the regulation of proliferation, cell cycle and apoptosis.
Subunit / interactions. Interacts with RB1 (phosphorylated and unphosphorylated). Interacts with STAT3; the interaction is promoted by cell stimulation with IL6 and phosphorylation of STAT3.
Subcellular location. Cytoplasm. Nucleus. Membrane.
Tissue specificity. Cervical tissues (at protein level). Urothelium (at protein level). Endothelial cells of urinary bladder vessels (at protein level). Urinary bladder stromal cells (at protein level). Cervical tissues. Kidney. Ubiquitous.
Miscellaneous. Down-regulated in cervical carcinoma tissues. Expression in stage III-IV cervical carcinomas is significantly lower compared to stage I-II. Down-regulated in bladder carcinoma. Down-regulated in renal cell carcinoma. Down-regulated in colorectal cancerous tissues.
Similarity. Belongs to the BLCAP family.
RefSeq proteins (7): NP_001161292, NP_001161293, NP_001161294, NP_001161295, NP_001304003, NP_001304004, NP_006689* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR009598 | BCALP | Family |
Pfam: PF06726
UniProt features (9 total): sequence variant 3, mutagenesis site 3, transmembrane region 2, chain 1
Structure
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-P62952-F1 | 63.24 | 0.00 |
Human Protein Atlas
Protein class: Predicted intracellular proteins
Protein evidence: Evidence at protein level
Subcellular location (HPA, imaging): nucleoli
Antibody reliability (HPA): IF approved
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Mutagenesis-validated functional residues (3)
| Position | Phenotype |
|---|---|
| 16–19 | no significant effect on activity. |
| 74 | reduces activity. |
| 78 | no significant effect on activity. |
Function
Pathways and Gene Ontology
Reactome pathways
0 curated (TAS) of 0; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
MSigDB gene sets: 266 (showing top):
CREL_01, BUYTAERT_PHOTODYNAMIC_THERAPY_STRESS_DN, GGTGTGT_MIR329, TGCACTT_MIR519C_MIR519B_MIR519A, ENK_UV_RESPONSE_KERATINOCYTE_UP, GRAESSMANN_APOPTOSIS_BY_DOXORUBICIN_UP, GENTILE_RESPONSE_CLUSTER_D3, TGACCTY_ERR1_Q2, GGAMTNNNNNTCCY_UNKNOWN, CAIRO_HEPATOBLASTOMA_CLASSES_DN, MCBRYAN_PUBERTAL_BREAST_4_5WK_DN, CCTGTGA_MIR513, GATA1_01, KINSEY_TARGETS_OF_EWSR1_FLII_FUSION_DN, ACATTCC_MIR1_MIR206
GO Biological Process (2): apoptotic nuclear changes (GO:0030262), apoptotic process (GO:0006915)
GO Molecular Function (1): protein binding (GO:0005515)
GO Cellular Component (3): nucleus (GO:0005634), cytoplasm (GO:0005737), membrane (GO:0016020)
GO top-level categories
8 GO namespaces:
| Category | Terms |
|---|---|
| cellular anatomical structure | 2 |
| cellular component disassembly involved in execution phase of apoptosis | 1 |
| programmed cell death | 1 |
| apoptotic signaling pathway | 1 |
| execution phase of apoptosis | 1 |
| binding | 1 |
| intracellular membrane-bounded organelle | 1 |
| intracellular anatomical structure | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 1 of 6 annotations. The rest are phylogenetic / computational / electronic (IEA).
1 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| apoptotic nuclear changes | BP | direct assay |
Protein interactions and networks
STRING
showing 15 of 506 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| BLCAP | NNAT | Q16517 | 966 |
| BLCAP | COG3 | Q96JB2 | 660 |
| BLCAP | AZIN1 | O14977 | 613 |
| BLCAP | CYFIP2 | Q96F07 | 582 |
| BLCAP | CSNK2A1 | P19138 | 551 |
| BLCAP | ADAR | P55265 | 541 |
| BLCAP | RBBP9 | O75884 | 510 |
| BLCAP | ASB4 | Q9Y574 | 502 |
| BLCAP | CHMP2A | O43633 | 497 |
| BLCAP | CSNK2A2 | P19784 | 490 |
| BLCAP | GRB10 | Q13322 | 486 |
| BLCAP | NAP1L5 | Q96NT1 | 466 |
| BLCAP | PLAGL1 | Q9UM63 | 462 |
| BLCAP | KCNK9 | Q9NPC2 | 452 |
| BLCAP | SGCE | O43556 | 431 |
IntAct
Human interaction partners of BLCAP in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
17 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| NOTCH2NLA | physical association | 0.670 | 4 |
| ASGR1 | physical association | 0.560 | 3 |
| CLDND2 | physical association | 0.560 | 3 |
| CYSRT1 | physical association | 0.560 | 3 |
| FAM241B | physical association | 0.560 | 3 |
| GIMAP1 | physical association | 0.560 | 3 |
| GJA5 | physical association | 0.560 | 3 |
| GOSR2 | physical association | 0.560 | 3 |
| HOXA1 | physical association | 0.560 | 3 |
| LEMD1 | physical association | 0.560 | 3 |
| LRAT | physical association | 0.560 | 3 |
| MFSD5 | physical association | 0.560 | 3 |
| SKAP1 | physical association | 0.560 | 3 |
| SSMEM1 | physical association | 0.560 | 3 |
| TMEM14B | physical association | 0.560 | 3 |
| TMEM237 | physical association | 0.560 | 3 |
| ESR1 | direct interaction | 0.530 | 2 |
BioGRID (24 interactions; top human partners by supporting records): AGO2 (Affinity Capture-RNA), ASGR1 (Two-hybrid), C10orf35 (Two-hybrid), CLDND2 (Two-hybrid), CYSRT1 (Two-hybrid), DDX58 (Affinity Capture-RNA), ELAVL1 (Affinity Capture-RNA), GIMAP1 (Two-hybrid), GJA5 (Two-hybrid), GOSR2 (Two-hybrid), HNRNPH1 (Affinity Capture-RNA), HOXA1 (Two-hybrid), LEMD1 (Two-hybrid), LRAT (Two-hybrid), MFSD5 (Two-hybrid)
Disease & clinical
Genetic variants
Variant evidence for BLCAP: 22 ClinVar records (0 pathogenic / likely pathogenic); 1 GWAS association.
ClinVar
22 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 16 |
| Likely benign | 0 |
| Benign | 0 |
SpliceAI
Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 21 predictions of 242):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 20:37527791–37527792 | donor_loss | 0.9900 | 6 |
| 20:37526855 | donor_gain | 0.9800 | |
| 20:37527793 | donor_loss | 0.9500 | |
| 20:37527140 | donor_gain | 0.9400 | |
| 20:37527793 | donor_loss | 0.9400 | |
| 20:37527795 | donor_gain | 0.8900 | |
| 20:37523636–37523637 | donor_gain | 0.8500 | 2 |
| 20:37519351–37519352 | acceptor_loss | 0.8300 | 6 |
| 20:37519366 | acceptor_loss | 0.7900 | |
| 20:37527136 | donor_gain | 0.7900 |
HPA cancer prognostics
RNA cancer specificity: Low cancer specificity
Disease associations
OMIM: gene MIM:613110 | disease phenotypes:
GWAS associations
1 associations:
| Study | Trait | p-value |
|---|---|---|
| GCST007843_28 | Rheumatoid arthritis | 4e-13 |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (CPIC guideline: no)
CTD chemical–gene interactions
40 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Benzo(a)pyrene | affects methylation, increases expression | 3 |
| aristolochic acid I | increases expression, decreases reaction, decreases expression | 2 |
| trichostatin A | affects cotreatment, decreases expression | 2 |
| sodium arsenite | affects expression, affects cotreatment, decreases expression, increases abundance | 2 |
| Arsenic | affects methylation, affects cotreatment, decreases expression, increases abundance | 2 |
| Cisplatin | increases expression, affects cotreatment | 2 |
| methylmercuric chloride | decreases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| tris(1,3-dichloro-2-propyl)phosphate | decreases expression | 1 |
| manganese chloride | affects cotreatment, decreases expression, increases abundance | 1 |
| ochratoxin A | decreases expression | 1 |
| resorcinol | increases expression | 1 |
| azoxystrobin | decreases expression | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, decreases expression | 1 |
| dorsomorphin | affects cotreatment, decreases expression | 1 |
| jinfukang | affects cotreatment, increases expression | 1 |
| Resveratrol | affects cotreatment, decreases expression | 1 |
| Temozolomide | decreases expression | 1 |
| Decitabine | decreases expression, decreases reaction | 1 |
| Vorinostat | decreases expression | 1 |
| Leflunomide | decreases expression | 1 |
| Vehicle Emissions | decreases expression, increases abundance | 1 |
| Doxorubicin | increases expression | 1 |
| Ethyl Methanesulfonate | increases expression | 1 |
| Formaldehyde | increases expression | 1 |
| Manganese | affects cotreatment, decreases expression, increases abundance | 1 |
| Methyl Methanesulfonate | increases expression | 1 |
| Phenobarbital | affects expression | 1 |
| Plant Extracts | affects cotreatment, decreases expression | 1 |
| Rotenone | decreases expression | 1 |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
Related Atlas pages
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): rheumatoid arthritis