1. Home
  2. Proteins
  3. BRCA1
  4. NM_007294
Login

After several years of serving the research community, our ActiveDriverDB database will be retired on May 1st 2026. Please make sure to download any data you need and update your links or workflows before that date.

We want to sincerely thank all our users for their support, feedback, and collaboration over the years — your contributions have been invaluable to this project. A special thank you to Dr. Michal Krassowski for leading the development of our open-source software and database.

For any questions or assistance, please contact Jüri Reimand (juri.reimand@utoronto.ca).

You are viewing an updated version (2021) of the ActiveDriverDB. To view the previous version please visit activedriverdb.org/v2020

BRCA1 (NM_007294) - BRCA1 DNA repair associated

Breast Cancer Type 1 Susceptibility Protein Isoform 1

Mutations Visualisation
The Mutations Visualisation needle plot provides a visual summary of the location, frequency and functional significance of all known mutations in your protein of interest. The placement of the pins corresponds to the location along the protein’s sequence, while the mutation impact and PTM associated with it is explained in the figure legend.

- Height (y axis) represents the number of occurrences of the mutation
- Horizontal position (x axis) represents the position along your protein’s amino acid sequence
- Pinhead colour represents the mutation impact (figure legend)
- X axis colouring represents the type of PTM associated with the mutation location (figure legend)

Zooming in/out
Too zoom in/out of a specific amino acid sequence, you can either use the magnifying glass icons below the needle plot, or you can use your mouse scroll wheel while hovering over the needle plot. Furthermore, you can enter a specific amino acid sequence range in the search bar and hit “Go!”

Saving the image
The Mutations Visualisation figure can be saved as an SVG or PDF format by clicking on the “Save image as” button at the top right of the plot.

Tracks
While the x axis of the Mutations Visualization plot indicates the amino acid sequence location, additional positional details are visualized using the tracks found here:

- Sequence track: amino acid sequence of your protein of interest
- Disorder track: (Not sure about this myself)
- Domains track: proteins domains identified in the amino acid sequence
- Mutations track: the specific amino acid substitutions detected at the specific site

If there is a specific region of the amino acid sequence you are interested in, you can zoom onto it using the magnifying glass icons below the Mutations Visualization plot. Alternatively, you can zoom in and out by using your mouse scroll wheel while hovering over the needle plot.

Protein summary
The protein summary provides brief information regarding your protein, namely: its full name, a brief description of its function, and genomic location of the coding gene.

This is preferred isoform of BRCA1 protein. View all 5 isoforms
BRCA1: breast cancer type 1 susceptibility protein isoform 1
Description:

This gene encodes a 190 kD nuclear phosphoprotein that plays a role in maintaining genomic stability, and it also acts as a tumor suppressor. The BRCA1 gene contains 22 exons spanning about 110 kb of DNA. The encoded protein combines with other tumor suppressors, DNA damage sensors, and signal transducers to form a large multi-subunit protein complex known as the BRCA1-associated genome surveillance complex (BASC). This gene product associates with RNA polymerase II, and through the C-terminal domain, also interacts with histone deacetylase complexes. This protein thus plays a role in transcription, DNA repair of double-stranded breaks, and recombination. Mutations in this gene are responsible for approximately 40% of inherited breast cancers and more than 80% of inherited breast and ovarian cancers. Alternative splicing plays a role in modulating the subcellular localization and physiological function of this gene. Many alternatively spliced transcript variants, some of which are disease-associated mutations, have been described for this gene, but the full-length natures of only some of these variants has been described. A related pseudogene, which is also located on chromosome 17, has been identified. [provided by RefSeq, May 2020].

Strand
-
Chromosome
17
Protein
1863 residues
All mutations
2813
PTM sites
127
CDS
41,197,694 - 41,276,113
Transcription
41,196,311 - 41,277,500
88.14% of sequence is predicted to be disordered

External references
RefSeq, Entrez, Uniprot and Enzembl IDs related to your search query.

Mappings retrieved from NCBI & UniProt.
RefSeq
RefSeq IDs relevant to your search query.
Entrez
gene: 672
UniProt
All links following an Uniprot accession refer to this accession.

Orange icon (
) next to an accession indicates that the entry belongs to SwissProt: a reviewed subset of Uniprot knowledgebase.

Rarely links to external resources may not work. This is common for new or unreviewed (
) entries.
Ensembl