> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/kcnma1-2d12d581-237c-53e2-a99f-113b7329be4b
> Record changed: 2026-11-04

# KCNMA1

ENSG00000156113

Target class

Ion channel

Chromosome

10

Approved drugs

0

Clinical candidates (approved and in development)

3

## Clinical evidence

**Approved drugs**

0

**ClinGen gene-disease validity**

Definitive

**Clinical candidates (approved and in development)**

3

## Druggability

**Chemical probe available**

No

## Names

**Target name**

KCNMA1

**Gene name**

Potassium calcium-activated channel subfamily M alpha 1

**Gene symbol**

KCNMA1

**Previous gene symbols**

- SLO

**Protein name**

Calcium-activated potassium channel subunit alpha-1 (BK channel) (BKCA alpha) (Calcium-activated potassium channel, subfamily M subunit alpha-1) (K(VCA)alpha) (KCa1.1) (Maxi K channel) (MaxiK) (Slo-alpha) (Slo1) (Slowpoke homolog) (Slo homolog) (hSlo)

### Other names (2)

- KCa1.1
- mSLO1

## Classification

**Gene biotype**

Protein coding

**Gene family**

Potassium calcium-activated channels

**Target class**

Ion channel

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

44

**Highest tissue expression**

43.8

**Tissue specificity (Gini)**

0.604

**Tissue specificity (tau)**

0.841

## Pathways and interactions

**KEGG gene identifiers**

- hsa:3778

**Protein interaction confidence**

0.887077

**Protein interaction partners**

26

### Reactome pathways (4)

- R-HSA-1296052
- R-HSA-418457
- R-HSA-9662360
- R-HSA-9667769

## Genomic location

**End position**

77638369

**Start position**

76869601

**Chromosome**

10

**Strand**

Reverse

## Identifiers

**Ensembl gene ID**

ENSG00000156113

**HGNC ID**

HGNC:6284

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:6284)

**NCBI Gene ID**

3778

**UniProt ID**

Q12791

## Cellular location

- Cell membrane
- Multi-pass membrane protein .

### Publication evidence (2)

- PubMed 20693285  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/20693285/)
- PubMed 22399288  
Source: [pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/22399288/)

## Tissue expression

**Tissue specificity (tau)**

0.840652

**Expression inequality (Gini)**

0.603938

### Highest expression

Expression in transcripts per million

**Uterus**

43.8

**Colon - Sigmoid**

36.37

**Artery - Tibial**

30.29

**Esophagus - Muscularis**

29.53

**Esophagus - Gastroesophageal Junction**

29.29

### All tissues (54)

Expression in transcripts per million

- Uterus43.8
- Colon - Sigmoid36.37
- Artery - Tibial30.29
- Esophagus - Muscularis29.53
- Esophagus - Gastroesophageal Junction29.29
- Artery - Aorta27.01
- Cervix - Endocervix16.97
- Brain - Frontal Cortex (BA9)14.71
- Artery - Coronary13.68
- Brain - Cortex11.91
- Colon - Transverse11.8
- Fallopian Tube11.59
- Bladder11.24
- Cervix - Ectocervix10.5
- Brain - Anterior cingulate cortex (BA24)9.63
- Prostate7.74
- Brain - Nucleus accumbens (basal ganglia)7.24
- Muscle - Skeletal6.02
- Brain - Caudate (basal ganglia)5.75
- Brain - Cerebellum5.49
- Brain - Amygdala5.15
- Vagina4.99
- Brain - Hypothalamus4.83
- Brain - Hippocampus4.65
- Pituitary4.34

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes (11)

- GO:0001666  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0001666)
- GO:0006813  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006813)
- GO:0006970  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006970)
- GO:0030007  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0030007)
- GO:0034465  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0034465)
- GO:0042391  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0042391)
- GO:0043065  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0043065)
- GO:0045794  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0045794)
- GO:0051592  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0051592)
- GO:0060073  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0060073)
- GO:0060083  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0060083)

### Cellular components (5)

- GO:0005886  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005886)
- GO:0005901  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005901)
- GO:0008076  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0008076)
- GO:0016020  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0016020)
- GO:0016324  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0016324)

### Molecular functions (5)

- GO:0003779  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0003779)
- GO:0005249  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005249)
- GO:0005515  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005515)
- GO:0015269  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0015269)
- GO:0060072  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0060072)

## Related records

### Trials (427)

- 3-year Study of Menostar Versus Evista to Prevent Osteoporosis in Post-menopausal Women
- A Clinical Study to Evaluate CAD-1883 in Essential Tremor
- A Clinical Study to Evaluate the Effects of Estrogen in Healthy Postmenopausal Women
- A Clinical Study to Evaluate the Safety and Efficacy of Elagolix in Participants With Moderate to Severe Endometriosis-Associated Pain
- A Comparison of Estradiol Vaginal Cream to Estrace® Cream in 350 Postmenopausal Females With Atrophic Vaginitis
- A Comparison of the Safety and Effectiveness of Fluconazole or Clotrimazole in the Treatment of Fungal Infections of the Mouth and Throat in Patients With AIDS
- A Definitive Estrogen Patch Study (ADEPT)
- A Dose-Finding Study to Evaluate Ovarian Function and Vaginal Bleeding in Next Generation Rings (P06109/MK-8175A/MK-8342B-012)
- A Pharmacokinetic Evaluation of Bioidentical Compounded Estrogen Cream and Natural Progesterone
- A Phase 3 Study to Confirm the Efficacy and Safety of Linzagolix to Treat Endometriosis-associated Pain
- A Protocol for the Role of Fractional CO2 Laser in Consolidation Treatment of Recurrent Vulvovaginal Candidiasis
- A Randomized Controlled Trial of Oral Naproxen and Transdermal Estradiol for Bleeding in LNG-IUC
- A Randomized, Single Center Pilot Study Comparing Hyaluronic Acid to Vaginal Estrogen for Treatment of Genitourinary Syndrome of Menopause
- A Safety and Efficacy Study of Estradiol Vaginal Capsule in Postmenopausal Women With Vulvovaginal Atrophy
- A Safety and Efficacy Study of the Combination Estradiol and Progesterone to Treat Vasomotor Symptoms
- A Study Comparing Different Treatment Approaches for the Initiation of Puberty in Girls With Turner Syndrome Using a TRIFECTA-DARED Approach for Rare Diseases
- A Study Comparing Estradiol Vaginal Cream to Estrace® Cream in Females With Atrophic Vaginitis
- A Study of MK-6913 for the Treatment of Hot Flashes in Postmenopausal Women (6913-004)
- A Study of Soticlestat With Itraconazole and Mefenamic Acid in Healthy Adults
- A Study of the Effect of Estrogen on Estrogen Receptor Biomarkers in Healthy Postmenopausal Women (0000-094)(COMPLETED)

### Drugs (11)

- Andolast Calcium-activated potassium channel subunit alpha-1 activator
- BMS-223131 Calcium-activated potassium channel subunit alpha-1 activator
- Chlorzoxazone
- Clotrimazole
- [Estradiol](https://trialight.com/data/asset/estradiol-0b121e99-a1da-433f-be00-a9b7e9d5f80c.md)
- Fanchinin
- Flindokalner Calcium-activated potassium channel subunit alpha-1 opener
- Mefenamic acid
- Rimtuzalcap
- Tetrylammonium
- Tetrylammonium bromide

---

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