Genetic Variant NM_024660.4:c.755G>A (chr19-35739593-C-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024660.4(IGFLR1):c.755G>A(p.Arg252His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,264 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R252P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

IGFLR1
NM_024660.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -0.261

Publications

0 publications found

Variant links:

Genes affected

IGFLR1 (HGNC:23620): (IGF like family receptor 1) Located in plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

IGFLR1 links:

ENSG00000267120 (HGNC:):

ENSG00000267120 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.091350645).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGFLR1	NM_024660.4 link	c.755G>A	p.Arg252His	missense_variant	Exon 5 of 5	ENST00000246532.6	NP_078936.1	Q9H665-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
IGFLR1	ENST00000246532.6 link	c.755G>A	p.Arg252His	missense_variant	Exon 5 of 5	1	NM_024660.4	ENSP00000246532.1	Q9H665-1
ENSG00000267120	ENST00000589807.1 link	n.*1249G>A		non_coding_transcript_exon_variant	Exon 11 of 11	2		ENSP00000472696.1	M0R2N4
ENSG00000267120	ENST00000589807.1 link	n.*1249G>A		3_prime_UTR_variant	Exon 11 of 11	2		ENSP00000472696.1	M0R2N4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000160

AC:

AN:

250680

AF XY:

0.00000738

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000869

Gnomad ASJ exome

AF:

0.00

Gnomad EAS 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:

0.00000274

AC:

AN:

1461264

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726852

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33468

American (AMR)

AF:

0.0000671

AC:

AN:

44688

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39672

South Asian (SAS)

AF:

0.00

AC:

AN:

86236

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53342

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

9.00e-7

AC:

AN:

1111620

Other (OTH)

AF:

0.00

AC:

AN:

60364

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 17, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.755G>A (p.R252H) alteration is located in exon 5 (coding exon 4) of the IGFLR1 gene. This alteration results from a G to A substitution at nucleotide position 755, causing the arginine (R) at amino acid position 252 to be replaced by a histidine (H). 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

0.12

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.48

CADD

Benign

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.083

T;.;.;T

Eigen

Benign

-0.49

Eigen_PC

Benign

-0.40

FATHMM_MKL

Benign

0.53

LIST_S2

Benign

0.69

.;T;T;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.091

T;T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.1

M;.;.;M

PhyloP100

-0.26

PrimateAI

Benign

0.30

PROVEAN

Uncertain

-3.5

D;.;.;.

REVEL

Benign

0.052

Sift

Benign

0.087

T;.;.;.

Sift4G

Uncertain

0.016

D;D;D;D

Polyphen

0.59

P;B;.;P

Vest4

0.12

MutPred

0.16

Loss of helix (P = 0.0558);.;.;Loss of helix (P = 0.0558);

MVP

0.31

MPC

0.52

ClinPred

0.72

GERP RS

1.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.095

gMVP

0.37

Mutation Taster

=95/5

polymorphism

(source)

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

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NM_024660.4:c.755G>A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over