16-54931417-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_ModerateBP6BP7

The NM_005853.6(IRX5):​c.219C>T​(p.Ala73=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000139 in 1,580,602 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.000072 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000077 ( 0 hom. )

Consequence

IRX5
NM_005853.6 synonymous

Scores

2

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: -4.32
Variant links:
Genes affected
IRX5 (HGNC:14361): (iroquois homeobox 5) This gene encodes a member of the iroquois homeobox gene family, which are involved in several embryonic developmental processes. Knockout mice lacking this gene show that it is required for retinal cone bipolar cell differentiation, and that it negatively regulates potassium channel gene expression in the heart to ensure coordinated cardiac repolarization. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Nov 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 16-54931417-C-T is Benign according to our data. Variant chr16-54931417-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 3037463.Status of the report is no_assertion_criteria_provided, 0 stars.
BP7
Synonymous conserved (PhyloP=-4.32 with no splicing effect.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IRX5NM_005853.6 linkuse as main transcriptc.219C>T p.Ala73= synonymous_variant 1/3 ENST00000394636.9 NP_005844.4
IRX5NM_001252197.1 linkuse as main transcriptc.219C>T p.Ala73= synonymous_variant 1/3 NP_001239126.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IRX5ENST00000394636.9 linkuse as main transcriptc.219C>T p.Ala73= synonymous_variant 1/33 NM_005853.6 ENSP00000378132 A1P78411-1
IRX5ENST00000320990.9 linkuse as main transcriptc.219C>T p.Ala73= synonymous_variant 1/31 ENSP00000316250 P4P78411-2
IRX5ENST00000560154.5 linkuse as main transcriptc.219C>T p.Ala73= synonymous_variant 1/35 ENSP00000453660

Frequencies

GnomAD3 genomes
AF:
0.0000723
AC:
11
AN:
152132
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.000265
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000195
AC:
4
AN:
205292
Hom.:
0
AF XY:
0.0000174
AC XY:
2
AN XY:
115242
show subpopulations
Gnomad AFR exome
AF:
0.000265
Gnomad AMR exome
AF:
0.00
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:
0.0000109
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000770
AC:
11
AN:
1428470
Hom.:
0
Cov.:
32
AF XY:
0.00000422
AC XY:
3
AN XY:
710100
show subpopulations
Gnomad4 AFR exome
AF:
0.000216
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000236
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.0000338
GnomAD4 genome
AF:
0.0000723
AC:
11
AN:
152132
Hom.:
0
Cov.:
33
AF XY:
0.0000807
AC XY:
6
AN XY:
74312
show subpopulations
Gnomad4 AFR
AF:
0.000265
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000869

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

IRX5-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesApr 30, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
5.6
DANN
Benign
0.95

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
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: rs766520741; hg19: chr16-54965329; API