rs1805075

Variant names:

• chr6-160084175-A-G
• rs1805075
• NM_000876.4:c.6059A>G
• IGF2R p.Asn2020Ser

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_000876.4(IGF2R):​c.6059A>G​(p.Asn2020Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0618 in 1,608,400 control chromosomes in the GnomAD database, including 6,251 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N2020K) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.061 (639 hom., cov: 32)
  • Exomes 𝑓: 0.062 (5612 hom.)
• Consequence: IGF2R NM_000876.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.76
• Publications: 33 publications found

Genes affected

IGF2R (HGNC:5467): (insulin like growth factor 2 receptor) This gene encodes a receptor for both insulin-like growth factor 2 and mannose 6-phosphate. The binding sites for each ligand are located on different segments of the protein. This receptor has various functions, including in the intracellular trafficking of lysosomal enzymes, the activation of transforming growth factor beta, and the degradation of insulin-like growth factor 2. Mutation or loss of heterozygosity of this gene has been association with risk of hepatocellular carcinoma. The orthologous mouse gene is imprinted and shows exclusive expression from the maternal allele; however, imprinting of the human gene may be polymorphic, as only a minority of individuals showed biased expression from the maternal allele (PMID:8267611). [provided by RefSeq, Nov 2015]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0046558976).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.313 is higher than 0.05.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000876.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IGF2R	NM_000876.4	MANE Select	c.6059A>G	p.Asn2020Ser	missense	Exon 40 of 48	NP_000867.3	P11717

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	IGF2R	ENST00000356956.6	TSL:1 MANE Select	c.6059A>G	p.Asn2020Ser	missense	Exon 40 of 48	ENSP00000349437.1	P11717
	IGF2R	ENST00000650503.1		n.2669A>G		non_coding_transcript_exon	Exon 17 of 24
	IGF2R	ENST00000676781.1		n.*4167A>G		non_coding_transcript_exon	Exon 41 of 49	ENSP00000504419.1	A0A7I2YQS7

Frequencies

GnomAD3 genomes AF: 0.0606 AC: 9208 AN: 152032 Hom.: 634 Cov.: 32

Gnomad AFR AF: 0.0130

Gnomad AMI AF: 0.0504

Gnomad AMR AF: 0.143

Gnomad ASJ AF: 0.00519

Gnomad EAS AF: 0.327

Gnomad SAS AF: 0.107

Gnomad FIN AF: 0.0689

Gnomad MID AF: 0.00949

Gnomad NFE AF: 0.0495

Gnomad OTH AF: 0.0559

GnomAD2 exomes AF: 0.104 AC: 26079 AN: 250810 AF XY: 0.0974

Gnomad AFR exome AF: 0.0132

Gnomad AMR exome AF: 0.261

Gnomad ASJ exome AF: 0.00795

Gnomad EAS exome AF: 0.325

Gnomad FIN exome AF: 0.0757

Gnomad NFE exome AF: 0.0475

Gnomad OTH exome AF: 0.0756

GnomAD4 exome AF: 0.0620 AC: 90248 AN: 1456250 Hom.: 5612 Cov.: 30 AF XY: 0.0624 AC XY: 45214 AN XY: 724766

African (AFR) AF: 0.0106 AC: 352 AN: 33350

American (AMR) AF: 0.246 AC: 11004 AN: 44688

Ashkenazi Jewish (ASJ) AF: 0.00808 AC: 211 AN: 26116

East Asian (EAS) AF: 0.315 AC: 12494 AN: 39660

South Asian (SAS) AF: 0.109 AC: 9388 AN: 86130

European-Finnish (FIN) AF: 0.0749 AC: 4002 AN: 53412

Middle Eastern (MID) AF: 0.0220 AC: 126 AN: 5732

European-Non Finnish (NFE) AF: 0.0443 AC: 49010 AN: 1106934

Other (OTH) AF: 0.0608 AC: 3661 AN: 60228

GnomAD4 genome AF: 0.0606 AC: 9216 AN: 152150 Hom.: 639 Cov.: 32 AF XY: 0.0643 AC XY: 4779 AN XY: 74372

African (AFR) AF: 0.0129 AC: 537 AN: 41506

American (AMR) AF: 0.143 AC: 2189 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.00519 AC: 18 AN: 3466

East Asian (EAS) AF: 0.326 AC: 1683 AN: 5164

South Asian (SAS) AF: 0.107 AC: 515 AN: 4818

European-Finnish (FIN) AF: 0.0689 AC: 730 AN: 10600

Middle Eastern (MID) AF: 0.0102 AC: 3 AN: 294

European-Non Finnish (NFE) AF: 0.0495 AC: 3366 AN: 67996

Other (OTH) AF: 0.0610 AC: 129 AN: 2114

Alfa AF: 0.0554 Hom.: 1983

Bravo AF: 0.0673

Asia WGS AF: 0.215 AC: 750 AN: 3478

EpiCase AF: 0.0403

EpiControl AF: 0.0383

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.069
BayesDel_addAF	Benign	-0.77	T
BayesDel_noAF	Benign	-0.74
CADD	Benign	13
DANN	Benign	0.71
DEOGEN2	Benign	0.077	T
Eigen	Benign	-0.75
Eigen_PC	Benign	-0.69
FATHMM_MKL	Benign	0.70	D
LIST_S2	Benign	0.39	T
MetaRNN	Benign	0.0047	T
MetaSVM	Benign	-1.0	T
PhyloP100		3.8
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.39	N
REVEL	Benign	0.11
Sift	Benign	0.23	T
Sift4G	Benign	0.45	T
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.068
gMVP		0.12
Mutation Taster		=99/1	polymorphism (auto)

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1805075;

hg19: chr6-160505207;

COSMIC: COSV63626927;

COSMIC: COSV63626927;