SAFB2

Scaffold attachment factor B2 Q14151 SAFB2_HUMAN
Protein Coding Chr 19 19p13.3 Swiss-Prot reviewed Entrez 9667
Mutations
432
CL 90 · Tissue 333
Samples
399
CL 78 · Tissue 316
Peptides
325
unique mutant peptides
Transcripts
1
isoforms mutated

Stats by Source

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

How the counts split by source
Stats by Source

Total = all mutations for this gene across every source.

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

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

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

TotalCell lineTissue
Mutations43290333
Samples39978316
Peptides32569257

Function

SAFB2 · Scaffold attachment factor B2

The protein encoded by this gene, along with its paralog (scaffold attachment factor B1), is a repressor of estrogen receptor alpha. The encoded protein binds scaffold/matrix attachment region (S/MAR) DNA and is involved in cell cycle regulation, apoptosis, differentiation, the stress response, and regulation of immune genes. [provided by RefSeq, May 2016].

Isoforms & Proteins

1 transcript · 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
ENST00000252542 Q14151 432 325

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19p13.3
Entrez ID

Recurrent Mutations

All 325 amino-acid changes on canonical ENST00000252542 · needle height = samples · drag the mini-map to zoom

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 frequency across cancer types

% of samples with a missense/complex mutation in SAFB2 · cell line vs tissue

How this frequency is counted
Cancer-type mutation frequency

For each cancer type, the fraction of samples that carry at least one missense/complex mutation anywhere in SAFB2 – counted as distinct samples (a sample counts once no matter how many mutations it has).

Split into cell line and tissue; each cell shows mutated / total and the percentage. Cohorts with <20 samples are omitted. Ordered by combined frequency.

Cancer typeCell linesTissue samples
T-Lymphoblastic Leukemia
4/40 10%
0/0 0%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Acute Monocytic Leukemia
0/1 0%
1/25 4%
Gastrointestinal Stromal Tumour
0/0 0%
5/133 4%
Oral Cavity Carcinoma
2/54 4%
0/0 0%
Endometrial Carcinoma
3/42 7%
21/612 3%
Burkitts Lymphoma
0/32 0%
5/196 3%
Hodgkins Lymphoma
3/16 19%
0/122 0%
Melanoma
5/210 2%
36/1899 2%
Other Solid Cancers
1/94 1%
24/1515 2%
Colorectal Carcinoma
5/143 4%
45/3239 1%
Non-Small Cell Lung Carcinoma
6/304 2%
14/1390 1%
Squamous Cell Lung Carcinoma
1/57 2%
9/810 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Thyroid Gland Carcinoma
2/45 4%
16/1592 1%
Neuroendocrine Tumour
3/154 2%
5/577 1%
Non-Cancerous
2/104 2%
8/830 1%
Gastric Carcinoma
6/74 8%
13/1809 1%
Bladder Carcinoma
4/58 7%
6/956 1%
Hepatocellular Carcinoma
2/46 4%
18/2210 1%
Small Cell Lung Carcinoma
1/9 11%
5/752 1%
Head and Neck Carcinoma
4/85 5%
8/1574 1%
Cervical Carcinoma
0/35 0%
3/422 1%
Ovarian Carcinoma
3/109 3%
4/998 0%
Esophageal Carcinoma
1/23 4%
4/769 1%
Esophageal Squamous Cell Carcinoma
0/51 0%
14/2550 1%
Breast Carcinoma
4/144 3%
14/3264 0%
Germ Cell Tumour
0/25 0%
1/169 1%
Other Sarcomas
0/69 0%
4/699 1%
Glioma
0/52 0%
11/2127 1%

Mutation Distribution

Where SAFB2 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in SAFB2 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 432 mutations in SAFB2

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 CDSTypeSourceMutant PeptideWild-type Peptide