Variant 5-76461638-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006633.5(IQGAP2):c.115G>A(p.Glu39Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,598 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

IQGAP2
NM_006633.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.60

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
IQGAP2	NM_006633.5 linkuse as main transcript	c.115G>A	p.Glu39Lys	missense_variant	2/36	ENST00000274364.11	NP_006624.3
IQGAP2	XM_047416641.1 linkuse as main transcript	c.190G>A	p.Glu64Lys	missense_variant	2/36		XP_047272597.1
IQGAP2	XM_005248410.4 linkuse as main transcript	c.34G>A	p.Glu12Lys	missense_variant	2/36		XP_005248467.1
IQGAP2	XM_017008960.2 linkuse as main transcript	c.115G>A	p.Glu39Lys	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.115G>A	p.Glu39Lys	missense_variant	2/36	1	NM_006633.5	ENSP00000274364	P1	Q13576-1
IQGAP2	ENST00000514350.5 linkuse as main transcript	c.34G>A	p.Glu12Lys	missense_variant	2/22	1		ENSP00000423672
IQGAP2	ENST00000692467.1 linkuse as main transcript	n.316G>A		non_coding_transcript_exon_variant	2/2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000119

AC:

AN:

251342

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135832

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:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461598

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727126

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:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000756

ExAC

AF:

0.0000165

AC:

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

Jun 24, 2022

The c.115G>A (p.E39K) alteration is located in exon 2 (coding exon 2) of the IQGAP2 gene. This alteration results from a G to A substitution at nucleotide position 115, causing the glutamic acid (E) at amino acid position 39 to be replaced by a lysine (K). 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

Uncertain

0.14

BayesDel_noAF

Pathogenic

0.14

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.80

D;T

Eigen

Uncertain

0.54

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.90

D;D

M_CAP

Benign

0.027

MetaRNN

Uncertain

0.66

D;D

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.7

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.89

PROVEAN

Uncertain

-2.6

D;D

REVEL

Uncertain

0.49

Sift

Uncertain

0.0050

D;D

Sift4G

Uncertain

0.0060

D;D

Polyphen

0.98

D;.

Vest4

0.98

MutPred

0.53

Gain of MoRF binding (P = 0.0087);.;

MVP

0.68

MPC

0.75

ClinPred

0.92

GERP RS

4.0

Varity_R

0.54

gMVP

0.67

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