AMELX

Amelogenin X-linked Q99217 AMELX_HUMAN
Protein Coding Chr X Xp22.2 Swiss-Prot reviewed Entrez 265
Mutations
424
CL 56 · Tissue 365
Samples
150
CL 33 · Tissue 116
Peptides
130
unique mutant peptides
Transcripts
3
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
Mutations42456365
Samples15033116
Peptides13019110

Function

AMELX · Amelogenin X-linked

This gene encodes a member of the amelogenin family of extracellular matrix proteins. Amelogenins are involved in biomineralization during tooth enamel development. Mutations in this gene cause X-linked amelogenesis imperfecta. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Jul 2008].

Isoforms & Proteins

3 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
ENST00000380714 Q99217 155 108
ENST00000380712 Q99217-3 139 106
ENST00000348912 Q99217-2 130 97

Gene Properties

Type
Protein Coding
Chromosome
X
Cytoband
Xp22.2
Entrez ID
Aliases
AI1EAIH1ALGNAMGAMGLAMGX

Recurrent Mutations

All 108 amino-acid changes on canonical ENST00000380714 · 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 AMELX · 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 AMELX – 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
3/40 8%
0/0 0%
Chronic Myelogenous Leukemia
1/25 4%
0/0 0%
Acute Myeloid Leukemia
3/90 3%
0/0 0%
Oral Cavity Carcinoma
1/54 2%
0/0 0%
Non-Small Cell Lung Carcinoma
5/304 2%
16/1390 1%
Melanoma
1/210 0%
22/1899 1%
Endometrial Carcinoma
0/42 0%
6/612 1%
Squamous Cell Lung Carcinoma
2/57 4%
5/810 1%
Esophageal Squamous Cell Carcinoma
0/51 0%
13/2550 1%
Colorectal Carcinoma
6/143 4%
8/3239 0%
Small Cell Lung Carcinoma
0/9 0%
3/752 0%
Other Solid Cancers
0/94 0%
6/1515 0%
Ovarian Carcinoma
2/109 2%
1/998 0%
Gastric Carcinoma
0/74 0%
5/1809 0%
Glioma
2/52 4%
3/2127 0%
Medulloblastoma
0/0 0%
1/450 0%
Neuroblastoma
0/87 0%
3/1331 0%
Non-Cancerous
0/104 0%
2/830 0%
Bladder Carcinoma
1/58 2%
1/956 0%
Head and Neck Carcinoma
1/85 1%
2/1574 0%
Breast Carcinoma
2/144 1%
4/3264 0%
B-Cell Non-Hodgkins Lymphoma
0/88 0%
4/2534 0%
Neuroendocrine Tumour
0/154 0%
1/577 0%
Thyroid Gland Carcinoma
1/45 2%
1/1592 0%
Other Blood Cancers
0/61 0%
3/2725 0%
Kidney Carcinoma
0/85 0%
2/1862 0%
Prostate Carcinoma
0/13 0%
2/2105 0%
Hepatocellular Carcinoma
1/46 2%
1/2210 0%
B-Lymphoblastic Leukemia
1/55 2%
1/2640 0%
Pancreatic Carcinoma
0/89 0%
1/1611 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in AMELX 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 2 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 424 mutations in AMELX

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