CD33

CD33 molecule P20138 CD33_HUMAN
Protein Coding Chr 19 19q13.41 Swiss-Prot reviewed Entrez 945
Mutations
1,014
CL 111 · Tissue 894
Samples
361
CL 52 · Tissue 306
Peptides
274
unique mutant peptides
Transcripts
4
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
Mutations1,014111894
Samples36152306
Peptides27438239

Function

CD33 · CD33 molecule

Enables protein phosphatase binding activity and sialic acid binding activity. Involved in several processes, including negative regulation of cytokine production; negative regulation of monocyte activation; and positive regulation of protein tyrosine phosphatase activity. Located in several cellular components, including Golgi apparatus; external side of plasma membrane; and peroxisome. [provided by Alliance of Genome Resources, Apr 2022]

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
ENST00000262262 P20138 379 247
ENST00000391796 P20138-2 316 210
ENST00000421133 P20138-3 178 139
ENST00000436584 B4DF51* 141 110

Gene Properties

Type
Protein Coding
Chromosome
19
Cytoband
19q13.41
Entrez ID
Aliases
CD33rSiglecSIGLEC-3SIGLEC3p67

Recurrent Mutations

All 247 amino-acid changes on canonical ENST00000262262 · 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 CD33 · 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 CD33 – 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
Gastrointestinal Stromal Tumour
0/0 0%
6/133 5%
Melanoma
7/210 3%
76/1899 4%
T-Lymphoblastic Leukemia
1/40 2%
0/0 0%
Endometrial Carcinoma
1/42 2%
15/612 2%
Acute Myeloid Leukemia
2/90 2%
0/0 0%
Non-Small Cell Lung Carcinoma
6/304 2%
23/1390 2%
Bladder Carcinoma
0/58 0%
14/956 1%
Burkitts Lymphoma
2/32 6%
1/196 1%
Gastric Carcinoma
3/74 4%
21/1809 1%
Other Solid Cancers
3/94 3%
17/1515 1%
Non-Cancerous
2/104 2%
8/830 1%
Colorectal Carcinoma
8/143 6%
28/3239 1%
Squamous Cell Lung Carcinoma
0/57 0%
9/810 1%
Small Cell Lung Carcinoma
0/9 0%
7/752 1%
Esophageal Carcinoma
0/23 0%
7/769 1%
Neuroendocrine Tumour
3/154 2%
3/577 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Prostate Carcinoma
0/13 0%
15/2105 1%
Cervical Carcinoma
0/35 0%
3/422 1%
Plasma Cell Myeloma
0/44 0%
2/305 1%
Germ Cell Tumour
0/25 0%
1/169 1%
Hepatocellular Carcinoma
2/46 4%
9/2210 0%
Osteosarcoma
1/45 2%
0/166 0%
Medulloblastoma
0/0 0%
2/450 0%
Pancreatic Carcinoma
1/89 1%
6/1611 0%
Biliary Tract Carcinoma
0/54 0%
4/950 0%
Meningioma
1/3 33%
0/252 0%
Glioma
0/52 0%
8/2127 0%
Thyroid Gland Carcinoma
0/45 0%
5/1592 0%
Esophageal Squamous Cell Carcinoma
4/51 8%
2/2550 0%

Mutation Distribution

Where CD33 is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in CD33 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 1,014 mutations in CD33

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