C1orf112 FIGNL1-interacting regulator of recombination and mitosis Q9NSG2 FIRRM_HUMAN
Swiss-Prot reviewed
Mutations
892
CL 83 · Tissue 786
Samples
290
CL 24 · Tissue 258
Peptides
265
unique mutant peptides
Transcripts
5
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
Mutations89283786
Samples29024258
Peptides26531230

Function

C1orf112 · FIGNL1-interacting regulator of recombination and mitosis

Forms a complex with FIGL1, which regulates DNA double-strand break (DSB) repair via homologous recombination (HR) (PubMed:29608566, PubMed:37256941, PubMed:37347663, PubMed:37515771, PubMed:37556550, PubMed:38286805). The FIGNL1-FIRRM complex is essential for resolution of homologous recombination intermediates in response to DNA interstrand cross-links (ICLs) (PubMed:37256941, PubMed:37347663, PubMed:37515771, PubMed:37556550, PubMed:38286805). The complex regulates HR by promoting disassembly of RAD51 filaments from DNA and chromatin, thereby preventing DNA damage-independent RAD51 loading and persistent DNA accumulation of RAD51 recombinases (PubMed:37256941, PubMed:37347663, PubMed:37515771, PubMed:37556550, PubMed:38286805). It also regulates HR during meiosis by promoting dissociation of DMC1 filaments from DNA (By similarity). Within the complex, provides the ATPase activity to disassemble DMC1 and RAD51 filaments, while FIRRM directly binds single-stranded DNA to facilitate this unloading (PubMed:37556550). Independently of FIRRM, slso acts as a regulator of PLK1 kinase activity at kinetochores that promotes faithful chromosome segregation in prometaphase by bridging kinase and phosphatase activities (PubMed:34260926). Phosphorylation of FIRRM by PLK1 negatively regulates its interaction with the phosphatase, PPP1CC, thus creating a negative feedback loop for maintaining proper PLK1 kinase activity during mitosis (PubMed:34260926)

Isoforms & Proteins

5 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
ENST00000286031 Q9NSG2 300 239
ENST00000359326 Q9NSG2 300 239
ENST00000413811 Q9NSG2-3 189 155
ENST00000472795 A0A1B0GUP7* 53 45
ENST00000496973 A0A1B0GV14* 50 37

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 C1orf112 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in C1orf112 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 892 mutations in C1orf112

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