12-102433663-G-C

Variant names:

• chr12-102433663-G-C
• rs11111272
• NM_000618.5:c.221-13973C>G

Variant summary

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

The NM_000618.5(IGF1):​c.221-13973C>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.669 in 151,990 control chromosomes in the GnomAD database, including 34,218 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.67 (34218 hom., cov: 32)
• Consequence: IGF1 NM_000618.5 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0940
• Publications: 15 publications found

Genes affected

IGF1 (HGNC:5464): (insulin like growth factor 1) The protein encoded by this gene is similar to insulin in function and structure and is a member of a family of proteins involved in mediating growth and development. The encoded protein is processed from a precursor, bound by a specific receptor, and secreted. Defects in this gene are a cause of insulin-like growth factor I deficiency. Alternative splicing results in multiple transcript variants encoding different isoforms that may undergo similar processing to generate mature protein. [provided by RefSeq, Sep 2015]

LINC02456 (HGNC:53389): (long intergenic non-protein coding RNA 2456)

ACMG classification

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

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.9).
• BA1: GnomAd4 highest subpopulation (AMR) allele frequency at 95% confidence interval = 0.723 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGF1	NM_000618.5	c.221-13973C>G		intron_variant	Intron 2 of 3	ENST00000337514.11	NP_000609.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IGF1	ENST00000337514.11	c.221-13973C>G		intron_variant	Intron 2 of 3	1	NM_000618.5	ENSP00000337612.7

Frequencies

GnomAD3 genomes AF: 0.669 AC: 101594 AN: 151872 Hom.: 34227 Cov.: 32

Gnomad AFR AF: 0.593

Gnomad AMI AF: 0.808

Gnomad AMR AF: 0.735

Gnomad ASJ AF: 0.720

Gnomad EAS AF: 0.557

Gnomad SAS AF: 0.644

Gnomad FIN AF: 0.657

Gnomad MID AF: 0.718

Gnomad NFE AF: 0.707

Gnomad OTH AF: 0.678

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.669 AC: 101613 AN: 151990 Hom.: 34218 Cov.: 32 AF XY: 0.669 AC XY: 49673 AN XY: 74270

African (AFR) AF: 0.592 AC: 24534 AN: 41426

American (AMR) AF: 0.735 AC: 11226 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.720 AC: 2498 AN: 3470

East Asian (EAS) AF: 0.557 AC: 2871 AN: 5156

South Asian (SAS) AF: 0.643 AC: 3095 AN: 4812

European-Finnish (FIN) AF: 0.657 AC: 6929 AN: 10542

Middle Eastern (MID) AF: 0.714 AC: 210 AN: 294

European-Non Finnish (NFE) AF: 0.707 AC: 48092 AN: 67986

Other (OTH) AF: 0.672 AC: 1421 AN: 2114

Alfa AF: 0.675 Hom.: 4349

Bravo AF: 0.670

Asia WGS AF: 0.569 AC: 1981 AN: 3476

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.90
CADD	Benign	0.12
DANN	Benign	0.61
PhyloP100		-0.094
Mutation Taster		=100/0	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

Other links and lift over

dbSNP: rs11111272; hg19: chr12-102827441;