MARK2
protein-codingmicrotubule affinity regulating kinase 2, the group of Microtubule affinity regulating kinases
Gene summary
This gene encodes a member of the Par-1 family of serine/threonine protein kinases. The protein is an important regulator of cell polarity in epithelial and neuronal cells, and also controls the stability of microtubules through phosphorylation and inactivation of several microtubule-associating proteins. The protein localizes to cell membranes. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2009]
- EMK1
MANE transcript
Inheritance
ClinVar variants
Top phenotype
gnomAD constraint
Max pathogenic AF
Genomic locus
External References & Databases
Transcript & Mutation Effects
hg38 • Region Span ~72.1 kbGenCC Phenotypes & Disease Associations
Curated gene-disease validity assertions and inheritance patterns
Inheritance Pattern: AD
Disease ID:MONDO:0700092
Submitter: PanelApp Australia
ClinVar Associated Diseases & Phenotypes
Reported disease conditions connected to MARK2 variants in ClinVar
ClinVar Variants & Pathogenicity by Type
Statistics based on transcript NM_001039469.3. Only rare variants are included.
We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.
Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.
| Effect | PathogenicP | Likely pathogenicLP | VUS | Likely benignLB | BenignB | Sum |
|---|---|---|---|---|---|---|
| synonymous | 3 | 2 | 4 | 9 | ||
| missense | 5 | 77 | 2 | 84 | ||
| nonsense | 10 | 5 | 5 | 20 | ||
| start loss | 0 | |||||
| frameshift | 9 | 5 | 17 | 31 | ||
| splice donor/acceptor (+/-2bp) | 3 | 7 | 10 | 1 | 21 | |
| Total | 22 | 22 | 112 | 5 | 4 | 165 |
Highest pathogenic variant AF is 0.000014872321
Transcript Catalog
Annotated transcript isoforms across RefSeq and Ensembl databases
| Transcript ID | Source | Protein ID | Coding Exons | MANE Status |
|---|---|---|---|---|
| RefSeq | NP_001034558.2 | 19 | MANE Select | |
| Ensembl | ENSP00000385751.2 | 19 | MANE Select | |
| RefSeq | NP_001156768.1 | 17 | Standard | |
| RefSeq | NP_001156769.1 | 16 | Standard |
Gene Ontology (GO) Annotations & Pathways
Biological processes, molecular functions, cellular components and pathways
Pathways ConsensusPathDB
- Regulation of Microtubule Cytoskeleton
- Notch signaling pathway
- TNFalpha
- LKB1 signaling events
Biological Process
- microtubule cytoskeleton organization
- autophagy of mitochondrion
- neuron migration
- protein phosphorylation
- positive regulation of neuron projection development
Molecular Function
- magnesium ion binding
- RNA binding
- protein serine/threonine kinase activity
- protein binding
- ATP binding
Cellular Component
- nucleoplasm
- cytoplasm
- mitochondrion
- actin filament
- plasma membrane
gnomAD Constraint
Source:
- Gene type
- protein_coding
- Transcript type
- protein_coding
- Transcript
- ENST00000402010
- Coding exons
- 19
- Length
- 72092
- Individuals with no LoFs
- 125741
- Homozygous LoFs
- 0
- Heterozygous LoFs
- 3
- Defined
- 125744
- p
- 0.0000119
| Z-Score | Observed | Expected | Observed/Expected | Mutation Rate | Total Possible | |
|---|---|---|---|---|---|---|
| Missense | 4.45 | 212 | 489 | 0.434 | 0.0000315 | 5159 |
| Missense (PolyPhen) | 48 | 211.27 | 0.22719 | 2231 | ||
| Synonymous | 0.798 | 176 | 190 | 0.926 | 0.0000121 | 1569 |
| Loss of Function | 5.59 | 2 | 40.3 | 0.0496 | 0.00000245 | 436 |
Population LoF Frequency
| Population | CAF | p-value | Status |
|---|---|---|---|
| African | 0 | 0.0 | absent |
| Latino/Admixed American | 0 | 0.0 | absent |
| Ashkenazi Jewish | 0.000099 | 0.000099 | rare |
| East Asian | 0 | 0.0 | absent |
| Finnish | 0 | 0.0 | absent |
| European (Non-Finnish) | 0.000018 | 0.000018 | rare |
| South Asian | 0 | 0.0 | absent |
| Other | 0 | 0.0 | absent |
dbNSFP Gene Annotations
Source:
- Function
- FUNCTION: Serine/threonine-protein kinase (PubMed:23666762). Involved in cell polarity and microtubule dynamics regulation. Phosphorylates CRTC2/TORC2, DCX, HDAC7, KIF13B, MAP2, MAP4 and RAB11FIP2. Phosphorylates the microtubule-associated protein MAPT/TAU (PubMed:23666762). Plays a key role in cell polarity by phosphorylating the microtubule-associated proteins MAP2, MAP4 and MAPT/TAU at KXGS motifs, causing detachment from microtubules, and their disassembly. Regulates epithelial cell polarity by phosphorylating RAB11FIP2. Involved in the regulation of neuronal migration through its dual activities in regulating cellular polarity and microtubule dynamics, possibly by phosphorylating and regulating DCX. Regulates axogenesis by phosphorylating KIF13B, promoting interaction between KIF13B and 14-3-3 and inhibiting microtubule-dependent accumulation of KIF13B. Also required for neurite outgrowth and establishment of neuronal polarity. Regulates localization and activity of some histone deacetylases by mediating phosphorylation of HDAC7, promoting subsequent interaction between HDAC7 and 14-3-3 and export from the nucleus. Also acts as a positive regulator of the Wnt signaling pathway, probably by mediating phosphorylation of dishevelled proteins (DVL1, DVL2 and/or DVL3). Modulates the developmental decision to build a columnar versus a hepatic epithelial cell apparently by promoting a switch from a direct to a transcytotic mode of apical protein delivery. Essential for the asymmetric development of membrane domains of polarized epithelial cells. {ECO:0000269|PubMed:11433294, ECO:0000269|PubMed:12429843, ECO:0000269|PubMed:14976552, ECO:0000269|PubMed:15158914, ECO:0000269|PubMed:15324659, ECO:0000269|PubMed:15365179, ECO:0000269|PubMed:16775013, ECO:0000269|PubMed:16980613, ECO:0000269|PubMed:18626018, ECO:0000269|PubMed:20194617, ECO:0000269|PubMed:23666762}.;
Recessive Scores
- pRec
- 0.346
Intolerance Scores
- LoFtool
- 0.436
- RVIS EVS
- -0.71
- RVIS percentile EVS
- 14.5
Essentials
- Essential (CRISPR)
- N
- Essential (CRISPR2)
- S
- Essential (gene trap)
- N
- Indispensability pred.
- E
- Indispensability score
- 0.999
Gene Damage Prediction
| All | Recessive | Dominant | |
|---|---|---|---|
| Mendelian | Medium | Medium | Medium |
| Primary Immunodeficiency | Medium | Medium | Medium |
| Cancer | Medium | Medium | Medium |