chr16-55326384-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_024335.3(IRX6):​c.94C>T​(p.Arg32Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,613,944 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 31)
Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

IRX6
NM_024335.3 missense

Scores

1
8
10

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.47
Variant links:
Genes affected
IRX6 (HGNC:14675): (iroquois homeobox 6) Predicted to enable DNA-binding transcription activator activity, RNA polymerase II-specific; DNA-binding transcription repressor activity, RNA polymerase II-specific; and RNA polymerase II cis-regulatory region sequence-specific DNA binding activity. Predicted to be involved in cell development; neuron differentiation; and regulation of transcription, DNA-templated. Predicted to act upstream of or within detection of visible light; negative regulation of transcription, DNA-templated; and retina morphogenesis in camera-type eye. Predicted to be part of chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IRX6NM_024335.3 linkuse as main transcriptc.94C>T p.Arg32Cys missense_variant 2/6 ENST00000290552.8 NP_077311.2 P78412
IRX6XM_005256137.4 linkuse as main transcriptc.94C>T p.Arg32Cys missense_variant 2/6 XP_005256194.1 P78412

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IRX6ENST00000290552.8 linkuse as main transcriptc.94C>T p.Arg32Cys missense_variant 2/61 NM_024335.3 ENSP00000290552.8 P78412
IRX6ENST00000558315.1 linkuse as main transcriptn.260C>T non_coding_transcript_exon_variant 2/51
ENSG00000259283ENST00000558730.2 linkuse as main transcriptn.88+7117G>A intron_variant 3

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152194
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000654
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
250796
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135642
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000151
AC:
22
AN:
1461750
Hom.:
0
Cov.:
32
AF XY:
0.0000124
AC XY:
9
AN XY:
727186
show subpopulations
Gnomad4 AFR exome
AF:
0.0000597
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000108
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152194
Hom.:
0
Cov.:
31
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.0000654
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000329
Hom.:
0
Bravo
AF:
0.0000302
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJun 24, 2022The c.94C>T (p.R32C) alteration is located in exon 2 (coding exon 2) of the IRX6 gene. This alteration results from a C to T substitution at nucleotide position 94, causing the arginine (R) at amino acid position 32 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.10
BayesDel_addAF
Benign
-0.0095
T
BayesDel_noAF
Uncertain
-0.050
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.26
T
Eigen
Benign
0.042
Eigen_PC
Benign
-0.13
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Benign
0.80
T
M_CAP
Benign
0.077
D
MetaRNN
Uncertain
0.69
D
MetaSVM
Uncertain
0.025
D
MutationAssessor
Uncertain
2.2
M
PrimateAI
Benign
0.28
T
PROVEAN
Pathogenic
-5.3
D
REVEL
Uncertain
0.47
Sift
Benign
0.036
D
Sift4G
Uncertain
0.0030
D
Polyphen
1.0
D
Vest4
0.42
MVP
0.88
MPC
0.12
ClinPred
0.68
D
GERP RS
2.0
Varity_R
0.11
gMVP
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.11
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs779323756; hg19: chr16-55360296; API