> Trialight public data. Index of pages: https://trialight.com/llms.txt
> Web page: https://trialight.com/data/target/myl4-79a2244f-ffbf-5b90-9021-e71c6659cfd5
> Record changed: 2026-10-13

# MYL4

ENSG00000198336

Target class

Unclassified protein

Chromosome

17

Approved drugs

1

Clinical candidates (approved and in development)

3

## Clinical evidence

**Approved drugs**

1

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

3

## Druggability

**Chemical probe available**

No

## Names

**Target name**

MYL4

**Gene name**

Myosin light chain 4

**Gene symbol**

MYL4

**Protein name**

Myosin light chain 4 (Myosin light chain 1, embryonic muscle/atrial isoform) (Myosin light chain alkali GT-1 isoform)

### Other names (4)

- ALC1
- AMLC
- GT1
- PRO1957

## Classification

**Gene biotype**

Protein coding

**Gene family**

Myosin light chains, class 1

**Target class**

Unclassified protein

**Target type**

Human gene

## Expression and localisation

**Tissues expressed in**

12

**Protein localisation evidence grade**

Approved

**Highest tissue expression**

2,518.25

**Tissue specificity (Gini)**

0.971

**Tissue specificity (tau)**

0.999

## Pathways and interactions

**KEGG gene identifiers**

- hsa:4635

**Reactome pathways**

- R-HSA-390522

**Protein interaction confidence**

0.815077

**Protein interaction partners**

39

## Genomic location

**End position**

47227683

**Start position**

47200446

**Chromosome**

17

**Strand**

Forward

## Identifiers

**Ensembl gene ID**

ENSG00000198336

**HGNC ID**

HGNC:7585

Source: [www.genenames.org](https://www.genenames.org/data/gene-symbol-report/#!/hgnc%5Fid/HGNC:7585)

**NCBI Gene ID**

4635

**UniProt ID**

P12829

## Cellular location

- Plasma membrane

## Tissue expression

**Tissue specificity (tau)**

0.99912

**Expression inequality (Gini)**

0.971359

### Highest expression

Expression in transcripts per million

**Heart - Atrial Appendage**

2,518.25

**Whole Blood**

33.08

**Heart - Left Ventricle**

29.61

**Testis**

19.04

**Thyroid**

8.84

### All tissues (54)

Expression in transcripts per million

- Heart - Atrial Appendage2,518.25
- Whole Blood33.08
- Heart - Left Ventricle29.61
- Testis19.04
- Thyroid8.84
- Spleen1.56
- Adipose - Visceral (Omentum)1.49
- Lung1.49
- Adipose - Subcutaneous1.22
- Nerve - Tibial1.22
- Artery - Coronary1.19
- Stomach1.03
- Breast - Mammary Tissue0.99
- Artery - Tibial0.96
- Artery - Aorta0.74
- Esophagus - Gastroesophageal Junction0.69
- Cells - EBV-transformed lymphocytes0.67
- Esophagus - Muscularis0.67
- Prostate0.66
- Uterus0.65
- Bladder0.64
- Muscle - Skeletal0.62
- Small Intestine - Terminal Ileum0.62
- Vagina0.59
- Kidney - Medulla0.59

And 29 more, listed on the interactive page.

## Biological functions

### Biological processes (3)

- GO:0002026  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0002026)
- GO:0006936  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0006936)
- GO:0060048  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0060048)

### Cellular components (2)

- GO:0005829  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0005829)
- GO:0031672  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0031672)

### Molecular functions (2)

- GO:0003785  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0003785)
- GO:0051015  
Source: [www.ebi.ac.uk](https://www.ebi.ac.uk/QuickGO/term/GO:0051015)

## Related records

### Trials (65)

- A Long-Term Safety Extension Study of Mavacamten in Adults Who Have Completed MAVERICK-HCM or EXPLORER-HCM
- A Pharmacokinetic and Pharmacodynamic Study of Omecamtiv Mecarbil in Healthy Volunteers
- A Phase 2 Open-label Pilot Study Evaluating MYK-461 in Subjects With Symptomatic Hypertrophic Cardiomyopathy and Left Ventricular Outflow Tract Obstruction
- A Phase 2 Study of Mavacamten in Adults With Symptomatic Non-Obstructive Hypertrophic Cardiomyopathy (nHCM)
- A Prospective Registry Study to Assess Real-world Patient Characteristics, Treatment Patterns, and Longitudinal Outcomes in Patients Receiving Mavacamten and Other Treatments for Symptomatic Obstructive Hypertrophic Cardiomyopathy (Obstructive-HCM)
- A Retrospective Cohort Study of Mavacamten Patient Support Program in Canada
- A Study of CK-1827452 Infusion in Stable Heart Failure
- A Study of Mavacamten in Adults With Obstructive Hypertrophic Cardiomyopathy in India (ROVER)
- A Study of Mavacamten in Non-Obstructive Hypertrophic Cardiomyopathy
- A Study of Mavacamten in Obstructive Hypertrophic Cardiomyopathy
- A Study of Mavacamten in Participants With HFpEF and Elevation of NT-proBNP With or Without Elevation of cTnT
- A Study of the Efficacy and Safety of Danicamtiv in Participants With Symptomatic Genetic and Familial Dilated Cardiomyopathy
- A Study of the Long-term Safety and Efficacy of Danicamtiv in Adults With Symptomatic Genetic and Familial Dilated Cardiomyopathy
- A Study to Assess the Effect of Danicamtiv on the Drug Levels of Midazolam in Participants With Stable Heart Failure
- A Study to Assess the Effects on the Single-Dose Drug Levels of Mavacamten in Healthy Participants
- A Study to Assess the Real-World Effectiveness of Mavacamten in Adult Patients With Obstructive Hypertrophic Cardiomyopathy in China
- A Study to Assess the Relative Biological Availability and the Effect of Food on the Drug Levels of Danicamtiv in Healthy Adult Participants
- A Study to Assess the Safety of Mavacamten in Korean Patients With Symptomatic Obstructive Hypertrophic Cardiomyopathy
- A Study to Assess the Treatment of Obstructive Hypertrophic Cardiomyopathy (oHCM) With Mavacamten in the US
- A Study to Evaluate Mavacamten Impact on Myocardial Structure in Participants With Symptomatic Obstructive Hypertrophic Cardiomyopathy

### Drugs (3)

- Danicamtiv Cardiac myosin activator
- [Mavacamten](https://trialight.com/data/asset/mavacamten-71ab9bd6-4d0a-448d-a680-fb7603992b64.md) Cardiac myosin inhibitor
- [Omecamtiv mecarbil](https://trialight.com/data/asset/omecamtiv-mecarbil-8ce221d4-7034-4673-8234-9147bbfc6b99.md) Cardiac myosin activator

---

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