MICB

MHC class I polypeptide-related sequence B Q29980 MICB_HUMAN
Protein Coding Chr 6 6p21.33 Swiss-Prot reviewed Entrez 4277
Mutations
620
CL 74 · Tissue 542
Samples
216
CL 34 · Tissue 180
Peptides
163
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
Mutations62074542
Samples21634180
Peptides16325144

Function

MICB · MHC class I polypeptide-related sequence B

This gene encodes a heavily glycosylated protein which is a ligand for the NKG2D type II receptor. Binding of the ligand activates the cytolytic response of natural killer (NK) cells, CD8 alphabeta T cells, and gammadelta T cells which express the receptor. This protein is stress-induced and is similar to MHC class I molecules; however, it does not associate with beta-2-microglobulin or bind peptides. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2014].

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
ENST00000252229 Q29980 236 144
ENST00000538442 F5H7Q8* 202 131
ENST00000399150 Q29980-2 182 127

Gene Properties

Type
Protein Coding
Chromosome
6
Cytoband
6p21.33
Entrez ID
Aliases
PERB11.2

Recurrent Mutations

All 144 amino-acid changes on canonical ENST00000252229 · 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 MICB · 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 MICB – 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%
Glioblastoma
2/98 2%
0/0 0%
Endometrial Carcinoma
7/42 17%
6/612 1%
Melanoma
1/210 0%
30/1899 2%
Other Solid Cancers
2/94 2%
21/1515 1%
Acute Myeloid Leukemia
1/90 1%
0/0 0%
Rhabdomyosarcoma
0/33 0%
2/171 1%
Small Cell Lung Carcinoma
0/9 0%
7/752 1%
Thyroid Gland Carcinoma
0/45 0%
15/1592 1%
Adrenocortical Carcinoma
0/3 0%
1/112 1%
Hodgkins Lymphoma
0/16 0%
1/122 1%
Gastric Carcinoma
1/74 1%
10/1809 1%
Plasma Cell Myeloma
0/44 0%
2/305 1%
Glioma
0/52 0%
12/2127 1%
Osteosarcoma
0/45 0%
1/166 1%
Ovarian Carcinoma
1/109 1%
4/998 0%
Colorectal Carcinoma
5/143 4%
10/3239 0%
Mesothelioma
1/62 2%
0/165 0%
Prostate Carcinoma
0/13 0%
9/2105 0%
Bladder Carcinoma
0/58 0%
4/956 0%
Esophageal Carcinoma
0/23 0%
3/769 0%
Head and Neck Carcinoma
0/85 0%
6/1574 0%
Non-Small Cell Lung Carcinoma
1/304 0%
5/1390 0%
Squamous Cell Lung Carcinoma
1/57 2%
2/810 0%
Neuroendocrine Tumour
2/154 1%
0/577 0%
Other Sarcomas
0/69 0%
2/699 0%
Kidney Carcinoma
0/85 0%
5/1862 0%
Pancreatic Carcinoma
3/89 3%
1/1611 0%
Esophageal Squamous Cell Carcinoma
0/51 0%
6/2550 0%
Medulloblastoma
0/0 0%
1/450 0%

Mutation Distribution

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

Mutation counts by tissue
Mutation Distribution

How many mutations in MICB 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 620 mutations in MICB

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