SIX4

protein-coding

SIX homeobox 4, the group of SINE class homeoboxes

Gene summary

This gene encodes a member of the homeobox family, subfamily SIX. The drosophila homolog is a nuclear homeoprotein required for eye development. Studies in mouse show that this gene product functions as a transcription factor, and may have a role in the differentiation or maturation of neuronal cells. [provided by RefSeq, May 2010]

MANE transcript

NM_017420.5

Inheritance

—

ClinVar variants

U:90B:2

Top phenotype

SIX4-related disorder

gnomAD constraint

pLI —, LoF o/e 0.19

Max pathogenic AF

—

Genomic locus

chr14:60,709,539-60,724,351

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~14.8 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 SIX4 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 88
SIX4-related disorderTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_017420.5. 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
1
clinvar
1
clinvar
2
missense
89
clinvar
1
clinvar
90
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00902092
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 6 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_017420.5RefSeqNP_059116.33MANE Select
ENST00000216513.5EnsemblENSP00000216513.43MANE Select
ENST00000556952.3EnsemblENSP00000450761.33Standard
ENST00001135327.1EnsemblENSP00000801557.13Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Transcriptional misregulation in cancer - Homo sapiens (human)
  • mir-124 predicted interactions with cell cycle and differentiation

Biological Process

  • skeletal muscle tissue development
  • regulation of synaptic growth at neuromuscular junction
  • male gonad development
  • anatomical structure morphogenesis
  • male sex determination

Molecular Function

  • transcription regulatory region sequence-specific DNA binding
  • RNA polymerase II proximal promoter sequence-specific DNA binding
  • DNA-binding transcription factor activity, RNA polymerase II-specific

Cellular Component

  • nucleus
  • transcription factor complex
  • cytoplasm

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000216513
Coding exons
3
Length
14821
Individuals with no LoFs
125727
Homozygous LoFs
0
Heterozygous LoFs
20
Defined
125747
p
0.0000795
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense1.493264110.7930.00001905017
Missense (PolyPhen)94133.780.702661744
Synonymous0.5651671770.9460.000008721658
Loss of Function3.48421.40.1879.14e-7263

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000290.000029rare
Ashkenazi Jewish00.0absent
East Asian0.000110.00011rare
Finnish00.0absent
European (Non-Finnish)0.0000710.000070rare
South Asian0.000290.00029rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Transcriptional regulator which can act as both a transcriptional repressor and activator by binding a DNA sequence on these target genes and is involved in processes like cell differentiation, cell migration and cell survival. Transactivates gene expression by binding a 5'-[CAT]A[CT][CT][CTG]GA[GAT]-3' motif present in the Trex site and a 5'-TCA[AG][AG]TTNC-3' motif present in the MEF3 site of the muscle-specific genes enhancer. Acts cooperatively with EYA proteins to transactivate their target genes through interaction and nuclear translocation of EYA protein. Acts synergistically with SIX1 to regulate target genes involved in formation of various organs, including muscle, kidney, gonad, ganglia, olfactory epithelium and cranial skeleton. Plays a role in several important steps of muscle development. Controls the genesis of hypaxial myogenic progenitors in the dermomyotome by transactivating PAX3 and the delamination and migration of the hypaxial precursors from the ventral lip to the limb buds through the transactivation of PAX3, MET and LBX1. Controls myoblast determination by transactivating MYF5, MYOD1 and MYF6. Controls somitic differentiation in myocyte through MYOG transactivation. Plays a role in synaptogenesis and sarcomere organization by participating in myofiber specialization during embryogenesis by activating fast muscle program in the primary myotome resulting in an up-regulation of fast muscle genes, including ATP2A1, MYL1 and TNNT3. Simultaneously, is also able to activate inhibitors of slow muscle genes, such as SOX6, HRASLS, and HDAC4, thereby restricting the activation of the slow muscle genes. During muscle regeneration, negatively regulates differentiation of muscle satellite cells through down-regulation of MYOG expression. During kidney development regulates the early stages of metanephros development and ureteric bud formation through regulation of GDNF, SALL1, PAX8 and PAX2 expression. Plays a role in gonad development by regulating both testis determination and size determination. In gonadal sex determination, transactivates ZFPM2 by binding a MEF3 consensus sequence, resulting in SRY up-regulation. In gonadal size determination, transactivates NR5A1 by binding a MEF3 consensus sequence resulting in gonadal precursor cell formation regulation. During olfactory development mediates the specification and patterning of olfactory placode through fibroblast growth factor and BMP4 signaling pathways and also regulates epithelial cell proliferation during placode formation. Promotes survival of sensory neurons during early trigeminal gangliogenesis. In the developing dorsal root ganglia, up- regulates SLC12A2 transcription. Regulates early thymus/parathyroid organogenesis through regulation of GCM2 and FOXN1 expression. Forms gustatory papillae during development of the tongue. Also plays a role during embryonic cranial skeleton morphogenesis. {ECO:0000250|UniProtKB:Q61321}.;

Recessive Scores

pRec
0.122

Intolerance Scores

LoFtool
0.0835
RVIS EVS
0.31
RVIS percentile EVS
72.66

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
N
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.569

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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