7-112461852-A-AT

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 4P and 1B. PVS1_ModeratePM2BP6

The NM_001550.4(IFRD1):​c.568-3dupT variant causes a splice acceptor, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00178 in 1,180,932 control chromosomes in the GnomAD database, with no homozygous occurrence. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0000067 ( 0 hom., cov: 27)
Exomes 𝑓: 0.0020 ( 0 hom. )

Consequence

IFRD1
NM_001550.4 splice_acceptor, intron

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.209
Variant links:
Genes affected
IFRD1 (HGNC:5456): (interferon related developmental regulator 1) This gene is an immediate early gene that encodes a protein related to interferon-gamma. This protein may function as a transcriptional co-activator/repressor that controls the growth and differentiation of specific cell types during embryonic development and tissue regeneration. Mutations in this gene are associated with sensory/motor neuropathy with ataxia. This gene may also be involved in modulating the pathogenesis of cystic fibrosis lung disease. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Oct 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.036873158 fraction of the gene. Cryptic splice site detected, with MaxEntScore 9.7, offset of 0 (no position change), new splice context is: tatatattttttttttttAGtgt. Cryptic site results in inframe change. If cryptic site found is not functional and variant results in exon loss, it results in inframe change.
PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 7-112461852-A-AT is Benign according to our data. Variant chr7-112461852-A-AT is described in ClinVar as [Likely_benign]. Clinvar id is 3041772.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
IFRD1NM_001550.4 linkuse as main transcriptc.568-3dupT splice_acceptor_variant, intron_variant ENST00000403825.8 NP_001541.2 O00458-1A4D0U1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
IFRD1ENST00000403825.8 linkuse as main transcriptc.568-3dupT splice_acceptor_variant, intron_variant 1 NM_001550.4 ENSP00000384477.3 O00458-1
ENSG00000288640ENST00000676282.1 linkuse as main transcriptn.568-3dupT splice_acceptor_variant, intron_variant ENSP00000501830.1

Frequencies

GnomAD3 genomes
AF:
0.00000668
AC:
1
AN:
149798
Hom.:
0
Cov.:
27
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.000100
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000924
AC:
142
AN:
153706
Hom.:
0
AF XY:
0.000872
AC XY:
73
AN XY:
83692
show subpopulations
Gnomad AFR exome
AF:
0.0000985
Gnomad AMR exome
AF:
0.00163
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00489
Gnomad SAS exome
AF:
0.00111
Gnomad FIN exome
AF:
0.000133
Gnomad NFE exome
AF:
0.000490
Gnomad OTH exome
AF:
0.000519
GnomAD4 exome
AF:
0.00204
AC:
2100
AN:
1031134
Hom.:
0
Cov.:
8
AF XY:
0.00189
AC XY:
991
AN XY:
523996
show subpopulations
Gnomad4 AFR exome
AF:
0.000762
Gnomad4 AMR exome
AF:
0.00155
Gnomad4 ASJ exome
AF:
0.000280
Gnomad4 EAS exome
AF:
0.00557
Gnomad4 SAS exome
AF:
0.00168
Gnomad4 FIN exome
AF:
0.000683
Gnomad4 NFE exome
AF:
0.00216
Gnomad4 OTH exome
AF:
0.00163
GnomAD4 genome
AF:
0.00000668
AC:
1
AN:
149798
Hom.:
0
Cov.:
27
AF XY:
0.0000137
AC XY:
1
AN XY:
73030
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.000100
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00

ClinVar

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

Submissions by phenotype

IFRD1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesMar 07, 2023This 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

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: rs61603869; hg19: chr7-112101907; API