CLASP2

protein-coding

cytoplasmic linker associated protein 2, the group of TOG domain containing

Gene summary

Enables cytoskeletal protein binding activity; dystroglycan binding activity; and protein tyrosine kinase binding activity. Involved in several processes, including cytoskeleton organization; regulation of cell migration; and regulation of supramolecular fiber organization. Located in several cellular components, including basal cortex; focal adhesion; and microtubule cytoskeleton. Is active in glutamatergic synapse. [provided by Alliance of Genome Resources, Jun 2026]

MANE transcript

NM_001365631.1

Inheritance

—

ClinVar variants

U:128B:18

Top phenotype

CLASP2-related disorder

gnomAD constraint

pLI —, LoF o/e 0.12

Max pathogenic AF

—

Genomic locus

chr3:33,496,245-33,718,356

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~222.1 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to CLASP2 variants in ClinVar

3 Conditions Cataloged
not specifiedTotal: 113
CLASP2-related disorderTotal: 18
not providedTotal: 10

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001365631.1. 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.

EffectPLPVUSLBBSum
synonymous
4
clinvar
11
clinvar
3
clinvar
18
missense
118
clinvar
1
clinvar
3
clinvar
122
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
6
clinvar
6
Total00128126146
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 126 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001365631.1RefSeqNP_001352560.139MANE Select
ENST00000682230.1EnsemblENSP00000507498.139MANE Select
NM_001207044.3RefSeqNP_001193973.134Standard
NM_001365627.1RefSeqNP_001352556.140Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Developmental Biology
  • Signal Transduction
  • Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal
  • Amplification of signal from the kinetochores
  • Mitotic Spindle Checkpoint

Biological Process

  • microtubule cytoskeleton organization
  • vesicle targeting
  • microtubule nucleation
  • negative regulation of microtubule depolymerization
  • Golgi organization

Molecular Function

  • dystroglycan binding
  • protein binding
  • microtubule binding
  • microtubule plus-end binding

Cellular Component

  • kinetochore
  • condensed chromosome kinetochore
  • cytoplasm
  • Golgi apparatus
  • trans-Golgi network

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000468888
Coding exons
39
Length
222112
Individuals with no LoFs
124640
Homozygous LoFs
0
Heterozygous LoFs
14
Defined
124654
p
0.0000562
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense3.874667680.6070.00003979745
Missense (PolyPhen)210397.480.528335163
Synonymous0.1342632660.9900.00001292948
Loss of Function7.491084.20.1190.000005071037

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000900.000087rare
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish0.0000930.000093rare
European (Non-Finnish)0.0000750.000071rare
South Asian0.0000380.000033rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Microtubule plus-end tracking protein that promotes the stabilization of dynamic microtubules (PubMed:26003921). Involved in the nucleation of noncentrosomal microtubules originating from the trans-Golgi network (TGN). Required for the polarization of the cytoplasmic microtubule arrays in migrating cells towards the leading edge of the cell. May act at the cell cortex to enhance the frequency of rescue of depolymerizing microtubules by attaching their plus-ends to cortical platforms composed of ERC1 and PHLDB2 (PubMed:16824950). This cortical microtubule stabilizing activity is regulated at least in part by phosphatidylinositol 3-kinase signaling. Also performs a similar stabilizing function at the kinetochore which is essential for the bipolar alignment of chromosomes on the mitotic spindle (PubMed:16866869, PubMed:16914514). Acts as a mediator of ERBB2- dependent stabilization of microtubules at the cell cortex. {ECO:0000269|PubMed:11290329, ECO:0000269|PubMed:15631994, ECO:0000269|PubMed:16824950, ECO:0000269|PubMed:16866869, ECO:0000269|PubMed:16914514, ECO:0000269|PubMed:17543864, ECO:0000269|PubMed:20937854, ECO:0000269|PubMed:26003921}.;

Recessive Scores

pRec
0.146

Essentials

Essential (CRISPR2)
N
Essential (gene trap)
E
Indispensability pred.
E
Indispensability score
0.606

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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