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GeneBe

15-90452925-G-A

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_ModerateBP6_ModerateBS2

The NM_003870.4(IQGAP1):​c.1313G>A​(p.Arg438Gln) variant causes a missense change. The variant allele was found at a frequency of 0.000083 in 1,613,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.000085 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000083 ( 0 hom. )

Consequence

IQGAP1
NM_003870.4 missense

Scores

19

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 5.07
Variant links:
Genes affected
IQGAP1 (HGNC:6110): (IQ motif containing GTPase activating protein 1) This gene encodes a member of the IQGAP family. The protein contains four IQ domains, one calponin homology domain, one Ras-GAP domain and one WW domain. It interacts with components of the cytoskeleton, with cell adhesion molecules, and with several signaling molecules to regulate cell morphology and motility. Expression of the protein is upregulated by gene amplification in two gastric cancer cell lines. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.08394432).
BP6
Variant 15-90452925-G-A is Benign according to our data. Variant chr15-90452925-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 2354948.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High AC in GnomAd4 at 13 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
IQGAP1NM_003870.4 linkuse as main transcriptc.1313G>A p.Arg438Gln missense_variant 12/38 ENST00000268182.10
IQGAP1XM_047433204.1 linkuse as main transcriptc.1313G>A p.Arg438Gln missense_variant 12/30

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
IQGAP1ENST00000268182.10 linkuse as main transcriptc.1313G>A p.Arg438Gln missense_variant 12/381 NM_003870.4 P1
IQGAP1ENST00000560738.1 linkuse as main transcriptc.107-13122G>A intron_variant 5
IQGAP1ENST00000633485.1 linkuse as main transcriptc.1313G>A p.Arg438Gln missense_variant, NMD_transcript_variant 12/395

Frequencies

GnomAD3 genomes
AF:
0.0000854
AC:
13
AN:
152246
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.000176
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000479
AC:
12
AN:
250758
Hom.:
0
AF XY:
0.0000664
AC XY:
9
AN XY:
135514
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000869
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:
0.0000794
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000828
AC:
121
AN:
1461566
Hom.:
0
Cov.:
31
AF XY:
0.0000853
AC XY:
62
AN XY:
727096
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.000134
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000348
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000989
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000854
AC:
13
AN:
152246
Hom.:
0
Cov.:
32
AF XY:
0.000121
AC XY:
9
AN XY:
74390
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000176
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000848
Hom.:
0
Bravo
AF:
0.0000756
ExAC
AF:
0.0000824
AC:
10
EpiCase
AF:
0.000164
EpiControl
AF:
0.000178

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsDec 19, 2022This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.054
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.66
CADD
Benign
16
DANN
Benign
0.71
DEOGEN2
Benign
0.12
T
Eigen
Benign
-1.0
Eigen_PC
Benign
-0.81
FATHMM_MKL
Benign
0.55
D
LIST_S2
Benign
0.48
T
M_CAP
Benign
0.0093
T
MetaRNN
Benign
0.084
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
-1.4
N
MutationTaster
Benign
1.0
D;N
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-0.49
N
REVEL
Benign
0.085
Sift
Benign
0.81
T
Sift4G
Benign
0.54
T
Polyphen
0.0
B
Vest4
0.27
MVP
0.24
MPC
0.14
ClinPred
0.049
T
GERP RS
2.6
Varity_R
0.028
gMVP
0.044

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.

Other links and lift over

dbSNP: rs756912806; hg19: chr15-90996157; COSMIC: COSV51581421; API