KIF21B

Kinesin family member 21B O75037 KI21B_HUMAN
Protein Coding Chr 1 1q32.1 Swiss-Prot reviewed Entrez 23046
Mutations
3,873
CL 510 · Tissue 3,330
Samples
936
CL 175 · Tissue 751
Peptides
741
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
Mutations3,8735103,330
Samples936175751
Peptides741125642

Function

KIF21B · Kinesin family member 21B

This gene encodes a member of the kinesin superfamily. Kinesins are ATP-dependent microtubule-based motor proteins that are involved in the intracellular transport of membranous organelles. Single nucleotide polymorphisms in this gene are associated with inflammatory bowel disease and multiple sclerosis. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Nov 2011].

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
ENST00000461742 O75037-4 1,035 714
ENST00000422435 O75037 950 691
ENST00000332129 O75037-2 949 690
ENST00000360529 O75037-3 939 684

Gene Properties

Type
Protein Coding
Chromosome
1
Cytoband
1q32.1
Entrez ID

Recurrent Mutations

All 714 amino-acid changes on canonical ENST00000461742 · 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 KIF21B · 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 KIF21B – 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
6/40 15%
0/0 0%
Endometrial Carcinoma
5/42 12%
41/612 7%
Melanoma
23/210 11%
125/1899 7%
Oral Cavity Carcinoma
3/54 6%
0/0 0%
Chordoma
0/7 0%
1/13 8%
Acute Myeloid Leukemia
4/90 4%
0/0 0%
Non-Small Cell Lung Carcinoma
17/304 6%
57/1390 4%
Squamous Cell Lung Carcinoma
6/57 11%
26/810 3%
Colorectal Carcinoma
20/143 14%
96/3239 3%
Gastric Carcinoma
8/74 11%
53/1809 3%
Other Solid Cancers
9/94 10%
38/1515 3%
Cervical Carcinoma
0/35 0%
12/422 3%
Neuroendocrine Tumour
11/154 7%
6/577 1%
Bladder Carcinoma
2/58 3%
20/956 2%
Hodgkins Lymphoma
2/16 12%
1/122 1%
Glioblastoma
2/98 2%
0/0 0%
Small Cell Lung Carcinoma
2/9 22%
13/752 2%
Other Sarcomas
3/69 4%
12/699 2%
Head and Neck Carcinoma
5/85 6%
26/1574 2%
Non-Cancerous
1/104 1%
15/830 2%
Esophageal Squamous Cell Carcinoma
4/51 8%
34/2550 1%
Osteosarcoma
2/45 4%
1/166 1%
Hepatocellular Carcinoma
0/46 0%
29/2210 1%
Biliary Tract Carcinoma
1/54 2%
11/950 1%
Ovarian Carcinoma
5/109 5%
8/998 1%
Esophageal Carcinoma
0/23 0%
9/769 1%
Thyroid Gland Carcinoma
1/45 2%
17/1592 1%
Breast Carcinoma
9/144 6%
28/3264 1%
Germ Cell Tumour
1/25 4%
1/169 1%
Mesothelioma
1/62 2%
1/165 1%

Mutation Distribution

Where KIF21B is mutated · all tissues, split by cell line vs tissue

Mutation counts by tissue
Mutation Distribution

How many mutations in KIF21B 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 3,873 mutations in KIF21B

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