NM_024660.4:c.997G>A

Variant names:

• chr19-35739351-C-T
• rs757461388
• NM_024660.4:c.997G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_024660.4(IGFLR1):​c.997G>A​(p.Ala333Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000596 in 1,611,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000060 (0 hom.)
• Consequence: IGFLR1 NM_024660.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.84
• Publications: 2 publications found

Genes affected

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

ENSG00000267120 (HGNC:):

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.088504106).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGFLR1	NM_024660.4	c.997G>A	p.Ala333Thr	missense_variant	Exon 5 of 5	ENST00000246532.6	NP_078936.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IGFLR1	ENST00000246532.6	c.997G>A	p.Ala333Thr	missense_variant	Exon 5 of 5	1	NM_024660.4	ENSP00000246532.1
ENSG00000267120	ENST00000589807.1	n.*1491G>A		non_coding_transcript_exon_variant	Exon 11 of 11	2		ENSP00000472696.1
ENSG00000267120	ENST00000589807.1	n.*1491G>A		3_prime_UTR_variant	Exon 11 of 11	2		ENSP00000472696.1

Frequencies

GnomAD3 genomes AF: 0.0000591 AC: 9 AN: 152238 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000482

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: 0.0000882

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000655 AC: 16 AN: 244210 AF XY: 0.0000526

Gnomad AFR exome AF: 0.0000654

Gnomad AMR exome AF: 0.000264

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.0000473

Gnomad NFE exome AF: 0.0000456

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000596 AC: 87 AN: 1459228 Hom.: 0 Cov.: 32 AF XY: 0.0000469 AC XY: 34 AN XY: 725714

African (AFR) AF: 0.0000598 AC: 2 AN: 33440

American (AMR) AF: 0.000225 AC: 10 AN: 44430

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26046

East Asian (EAS) AF: 0.0000252 AC: 1 AN: 39632

South Asian (SAS) AF: 0.00 AC: 0 AN: 85888

European-Finnish (FIN) AF: 0.0000569 AC: 3 AN: 52700

Middle Eastern (MID) AF: 0.000174 AC: 1 AN: 5750

European-Non Finnish (NFE) AF: 0.0000603 AC: 67 AN: 1111058

Other (OTH) AF: 0.0000498 AC: 3 AN: 60284

GnomAD4 genome AF: 0.0000591 AC: 9 AN: 152238 Hom.: 0 Cov.: 33 AF XY: 0.0000403 AC XY: 3 AN XY: 74384

African (AFR) AF: 0.0000482 AC: 2 AN: 41454

American (AMR) AF: 0.0000654 AC: 1 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5204

South Asian (SAS) AF: 0.00 AC: 0 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10630

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000882 AC: 6 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.000162 Hom.: 0

Bravo AF: 0.0000340

ExAC AF: 0.0000577 AC: 7

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Sep 26, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.997G>A (p.A333T) 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 997, causing the alanine (A) at amino acid position 333 to be replaced by a threonine (T). 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	0.15
BayesDel_addAF	Benign	-0.46	T
BayesDel_noAF	Benign	-0.60
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.026	T;.;.;T
Eigen	Benign	0.066
Eigen_PC	Benign	0.12
FATHMM_MKL	Benign	0.62	D
LIST_S2	Benign	0.79	.;T;T;T
M_CAP	Benign	0.0041	T
MetaRNN	Benign	0.089	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.1	M;.;.;M
PhyloP100		1.8
PrimateAI	Benign	0.43	T
PROVEAN	Benign	-1.7	N;.;.;.
REVEL	Benign	0.037
Sift	Benign	0.14	T;.;.;.
Sift4G	Uncertain	0.024	D;D;D;D
Polyphen		1.0	D;P;.;D
Vest4		0.042
MutPred		0.19		Gain of catalytic residue at A333 (P = 0.0393);.;.;Gain of catalytic residue at A333 (P = 0.0393);
MVP		0.40
MPC		0.44
ClinPred		0.27	T
GERP RS		4.8
Varity_R		0.10
gMVP		0.33
Mutation Taster		=77/23	polymorphism

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

Other links and lift over

dbSNP: rs757461388; hg19: chr19-36230252; COSMIC: COSV53075555; COSMIC: COSV53075555;