Variant 5-76461639-A-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP3BS2

The NM_006633.5(IQGAP2):c.116A>T(p.Glu39Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000185 in 1,461,604 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

IQGAP2
NM_006633.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.95

Variant links:

Genes affected

IQGAP2 (HGNC:6111): (IQ motif containing GTPase activating protein 2) This gene encodes a member of the IQGAP family. The encoded protein contains three IQ domains, one calponin homology domain, one Ras-GAP domain and one WW domain. This protein interacts with components of the cytoskeleton, with cell adhesion molecules, and with several signaling molecules to regulate cell morphology and motility. It also acts as a tumor suppressor and has been found to play a role in regulating innate antiviral responses. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2017]

IQGAP2 links:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.754

BS2

High AC in GnomAdExome4 at 27 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
IQGAP2	NM_006633.5 linkuse as main transcript	c.116A>T	p.Glu39Val	missense_variant	2/36	ENST00000274364.11	NP_006624.3
IQGAP2	XM_047416641.1 linkuse as main transcript	c.191A>T	p.Glu64Val	missense_variant	2/36		XP_047272597.1
IQGAP2	XM_005248410.4 linkuse as main transcript	c.35A>T	p.Glu12Val	missense_variant	2/36		XP_005248467.1
IQGAP2	XM_017008960.2 linkuse as main transcript	c.116A>T	p.Glu39Val	missense_variant	2/35		XP_016864449.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
IQGAP2	ENST00000274364.11 linkuse as main transcript	c.116A>T	p.Glu39Val	missense_variant	2/36	1	NM_006633.5	ENSP00000274364	P1	Q13576-1
IQGAP2	ENST00000514350.5 linkuse as main transcript	c.35A>T	p.Glu12Val	missense_variant	2/22	1		ENSP00000423672
IQGAP2	ENST00000692467.1 linkuse as main transcript	n.317A>T		non_coding_transcript_exon_variant	2/2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251350

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135836

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000185

AC:

AN:

1461604

Hom.:

Cov.:

AF XY:

0.0000124

AC XY:

AN XY:

727134

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000243

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

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 submitter

clinical testing

Ambry Genetics

May 10, 2024

The c.116A>T (p.E39V) alteration is located in exon 2 (coding exon 2) of the IQGAP2 gene. This alteration results from a A to T substitution at nucleotide position 116, causing the glutamic acid (E) at amino acid position 39 to be replaced by a valine (V). 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

0.99

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Pathogenic

0.82

D;T

Eigen

Uncertain

0.53

Eigen_PC

Uncertain

0.53

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.94

D;D

M_CAP

Uncertain

0.086

MetaRNN

Pathogenic

0.75

D;D

MetaSVM

Benign

-0.86

MutationAssessor

Uncertain

2.7

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-4.7

D;D

REVEL

Pathogenic

0.69

Sift

Uncertain

0.0010

D;D

Sift4G

Pathogenic

0.0010

D;D

Polyphen

1.0

D;.

Vest4

0.98

MutPred

0.49

Loss of helix (P = 0.0237);.;

MVP

0.70

MPC

0.76

ClinPred

0.99

GERP RS

4.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.65

gMVP

0.62

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over