chr12-6541518-C-T

Variant summary

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

The NM_001193457.2(IFFO1):​c.1604G>A​(p.Gly535Glu) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,528 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

IFFO1
NM_001193457.2 missense

Scores

4
7
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.15
Variant links:
Genes affected
IFFO1 (HGNC:24970): (intermediate filament family orphan 1) This gene is a member of the intermediate filament family. Intermediate filaments are proteins which are primordial components of the cytoskeleton and nuclear envelope. The proteins encoded by the members of this gene family are evolutionarily and structurally related but have limited sequence homology, with the exception of the central rod domain. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010]

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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 UniProt
IFFO1NM_001193457.2 linkuse as main transcriptc.1604G>A p.Gly535Glu missense_variant 9/10 ENST00000619571.5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IFFO1ENST00000619571.5 linkuse as main transcriptc.1604G>A p.Gly535Glu missense_variant 9/102 NM_001193457.2 A1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461528
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727084
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
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:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

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 GeneticsFeb 23, 2023The c.1604G>A (p.G535E) alteration is located in exon 9 (coding exon 9) of the IFFO1 gene. This alteration results from a G to A substitution at nucleotide position 1604, causing the glycine (G) at amino acid position 535 to be replaced by a glutamic acid (E). 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
Pathogenic
0.78
BayesDel_addAF
Pathogenic
0.35
D
BayesDel_noAF
Pathogenic
0.26
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0039
.;T;.;T;.;.;.
Eigen
Benign
-0.050
Eigen_PC
Benign
0.012
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Uncertain
0.89
.;D;D;D;D;D;D
M_CAP
Benign
0.083
D
MetaRNN
Uncertain
0.53
D;D;D;D;D;D;D
MetaSVM
Uncertain
-0.12
T
MutationAssessor
Benign
0.0
.;.;.;N;.;.;.
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.80
T
PROVEAN
Benign
0.030
N;N;N;N;.;N;.
REVEL
Uncertain
0.61
Sift
Benign
0.81
T;T;T;T;.;T;.
Sift4G
Uncertain
0.0060
D;D;D;D;D;D;D
Polyphen
0.93
.;.;P;P;.;P;.
Vest4
0.68
MutPred
0.36
.;.;.;Gain of ubiquitination at K526 (P = 0.0203);.;.;.;
MVP
0.78
MPC
1.7
ClinPred
0.86
D
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.26
gMVP
0.55

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr12-6650684; COSMIC: COSV57521533; COSMIC: COSV57521533; API