NOTO

protein-coding

notochord homeobox, the group of NKL subclass homeoboxes and pseudogenes

Gene summary

Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in brain development; neuron differentiation; and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within several processes, including embryonic organ development; motile cilium assembly; and regulation of cilium assembly. Predicted to be located in chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Jul 2025]

MANE transcript

NM_001134462.2

Inheritance

—

ClinVar variants

U:44B:4

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0.64

Max pathogenic AF

—

Genomic locus

chr2:73,202,574-73,212,513

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~9.9 kb
Loading mutation effect viewer...

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 NOTO variants in ClinVar

1 Conditions Cataloged
not specifiedTotal: 48

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_001134462.2. 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
0
missense
44
clinvar
4
clinvar
48
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00444048
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 3 of 3 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_001134462.2RefSeqNP_001127934.13MANE Select
ENST00000398468.4EnsemblENSP00000381486.33MANE Select
ENST00001144863.1EnsemblENSP00000812070.13Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
notoDanio rerio

Structure: podocyte

Quality: mislocalised laterally

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Biological Process

  • heart looping
  • regulation of transcription by RNA polymerase II
  • embryonic pattern specification
  • dorsal/ventral pattern formation
  • notochord development

Molecular Function

  • DNA-binding transcription factor activity, RNA polymerase II-specific
  • DNA binding

Cellular Component

  • nucleus

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000398468
Coding exons
3
Length
10256
Individuals with no LoFs
0
Homozygous LoFs
0
Heterozygous LoFs
0
Defined
0
p
0.00
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.2361061130.9370.000005631559
Missense (PolyPhen)2930.2580.95841428
Synonymous1.563650.00.7200.00000275557
Loss of Function0.94157.840.6374.26e-784

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)00.0absent
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Transcription regulator acting downstream of both FOXA2 and Brachyury (T) during notochord development. Required for node morphogenesis. Is essential for cilia formation in the posterior notochord (PNC) and for left-right patterning; acts upstream of FOXJ1 and RFX3 in this process and is required for the expression of various components important for axonemal assembly and function. Plays a role in regulating axial versus paraxial cell fate. Activates the transcription of ciliary proteins C11orf97 homolog, FAM183B and SPACA9 in the embryonic ventral node (By similarity). {ECO:0000250|UniProtKB:Q5TIS6}.;

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
N
Indispensability score
0.191

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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