FAM208A Protein TASOR Q9UK61-4 TASOR_HUMAN
Swiss-Prot reviewed
Mutations
1,694
CL 110 · Tissue 1,535
Samples
449
CL 24 · Tissue 415
Peptides
423
unique mutant peptides
Transcripts
4
isoforms mutated

Stats by Source

Global, split by cell line (COSMIC CL / DepMap / PubMed) vs tissue (COSMIC primary tissue)

How the counts split by source
Stats by Source

Global = all mutations for this gene across every source.

Cell line = COSMIC Cell Lines Project + DepMap + PubMed.

Tissue = COSMIC primary-tissue (patient tumour) samples.

Global can exceed cell line + tissue: COSMIC tissue-derived models sit only in global, and a peptide can be shared across both.

GlobalCell lineTissue
Mutations1,6941101,535
Samples44924415
Peptides42329389

Function

FAM208A · Protein TASOR

Core component of the HUSH complex, a multiprotein complex that specifically mediates epigenetic repression of mobile genetic elements, such as retroviruses and transposable elements (PubMed:26022416, PubMed:28581500, PubMed:29211708, PubMed:32976585, PubMed:33009411, PubMed:37433650). The HUSH complex represses LINE-1 (L1) retrotransposons that are still capable of transposition (PubMed:29211708, PubMed:32976585). Silencing events often occur within introns of transcriptionally active genes, and lead to the down-regulation of host gene expression (PubMed:29211708). The HUSH complex also represses exogenous retroviruses and synthetic transgenes (PubMed:26022416). The HUSH complex also represses expression of latent herpes simplex virus (PubMed:39589886). Mediates silencing of unintegrated retroviral DNA following recruitment by ZNF638: some part of the retroviral DNA formed immediately after infection remains unintegrated in the host genome and is transcriptionally repressed (PubMed:30487602). The HUSH complex is recruited to genomic loci rich in H3K9me3 and is required to maintain transcriptional silencing by promoting recruitment of SETDB1, a histone methyltransferase that mediates further deposition of H3K9me3, as well as MORC2, a chromatin remodeler that compacts chromatin (PubMed:26022416, PubMed:28581500). Within the HUSH complex, TASOR acts as the central scaffold which recruits MPHOSPH8 and PPHLN1 to mobile genetic elements and mediates association with SETDB1 and MORC2 (PubMed:32976585, PubMed:33009411, PubMed:39589886). The ability to silence mobile genetic elements plays a crucial role in early embryonic development: it is required to maintain epiblast cell fitness and cell division (By similarity)

Isoforms & Proteins

4 transcripts · UniProt mapping is sequence-verified (AA-safe)

About the isoform mapping
Isoforms & Proteins

Each Ensembl transcript (ENST) this gene is mutated on, with its matched UniProt accession.

The mapping is sequence-verified: the UniProt sequence is identical to the transcript translation, so amino-acid positions line up exactly. A * marks an unreviewed (TrEMBL) entry.

Counts are mutations and unique mutant peptides on each transcript.

TranscriptUniProtMutationsPeptides
ENST00000355628 Q9UK61-4 501 395
ENST00000493960 Q9UK61-3 460 361
ENST00000431842 Q9UK61-2 399 317
ENST00000614531 A0A087X0F1* 334 263

Gene Properties

Recurrent Mutations

Top recurrent amino-acid changes along the protein · needle height = number of mutations

What this lollipop shows
Recurrent Mutations

A lollipop / needle plot – the standard way to show recurrent mutations along a protein (as used by cBioPortal and MutationMapper).

X-axis = amino-acid position in the protein.

Needle height & head size = how often that exact amino-acid change was observed (its recurrence). Tall/large heads are mutational hotspots.

The most recurrent changes are labelled; hover any needle for the change, position and counts.

Mutation Distribution

Where FAM208A is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in FAM208A were found in each tissue, across the whole database.

Each bar is a tissue (cell-line and tissue names are merged to the standard tissue), split into cell line and tissue (patient tumour) contributions.

This shows the cancer-context where this gene is recurrently altered.

GTEx Expression

Median TPM across 54 healthy tissues

GTEx Portal ↗
About the expression data
GTEx Expression

Median gene expression (TPM) in normal, non-cancer human tissues from the GTEx project.

Useful for judging tumour specificity – a strong neoantigen target ideally comes from a gene with low expression in healthy tissues.

Scroll or drag the mini-axis below the chart to browse all tissues.

Mutations

All 1,694 mutations in FAM208A

About the mutation list
Mutations

Every mutation record for this gene, across all samples and sources.

The Sample column links to the cell line (cell-line samples) or the tissue type (tissue samples).

Use the Type / Source filters, the search box, and column sorting to explore; each CAN-IMMUNE ID opens the full mutation & peptide view.

IDSampleTranscriptAA Change CDSTypeSourcePeptide