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7-29507242-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_004067.4(CHN2):c.1006G>A(p.Asp336Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000107 in 1,607,456 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00062 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

CHN2
NM_004067.4 missense

Scores

2
4
7

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 9.92
Variant links:
Genes affected
CHN2 (HGNC:1944): (chimerin 2) This gene encodes a guanosine triphosphate (GTP)-metabolizing protein that contains a phorbol-ester/diacylglycerol (DAG)-type zinc finger, a Rho-GAP domain, and an SH2 domain. The encoded protein translocates from the cytosol to the Golgi apparatus membrane upon binding by diacylglycerol (DAG). Activity of this protein is important in cell proliferation and migration, and expression changes in this gene have been detected in cancers. A mutation in this gene has also been associated with schizophrenia in men. Alternative transcript splicing and the use of alternative promoters results in multiple transcript variants. [provided by RefSeq, May 2014]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.036931127).
BP6
Variant 7-29507242-G-A is Benign according to our data. Variant chr7-29507242-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 3035515.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CHN2NM_004067.4 linkuse as main transcriptc.1006G>A p.Asp336Asn missense_variant 11/13 ENST00000222792.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CHN2ENST00000222792.11 linkuse as main transcriptc.1006G>A p.Asp336Asn missense_variant 11/131 NM_004067.4 P1P52757-1

Frequencies

GnomAD3 genomes
AF:
0.000614
AC:
93
AN:
151402
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00209
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000658
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.000416
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.000482
GnomAD3 exomes
AF:
0.000119
AC:
29
AN:
244184
Hom.:
0
AF XY:
0.0000683
AC XY:
9
AN XY:
131834
show subpopulations
Gnomad AFR exome
AF:
0.00181
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000536
AC:
78
AN:
1455946
Hom.:
0
Cov.:
31
AF XY:
0.0000456
AC XY:
33
AN XY:
724034
show subpopulations
Gnomad4 AFR exome
AF:
0.00163
Gnomad4 AMR exome
AF:
0.0000459
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000592
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000360
Gnomad4 OTH exome
AF:
0.000216
GnomAD4 genome
AF:
0.000620
AC:
94
AN:
151510
Hom.:
0
Cov.:
32
AF XY:
0.000554
AC XY:
41
AN XY:
73958
show subpopulations
Gnomad4 AFR
AF:
0.00211
Gnomad4 AMR
AF:
0.0000658
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.000417
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.000477
Alfa
AF:
0.000123
Hom.:
0
Bravo
AF:
0.000635
ESP6500AA
AF:
0.00182
AC:
8
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000157
AC:
19
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

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

Submissions by phenotype

CHN2-related disorder Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesApr 01, 2022This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.50
T
BayesDel_noAF
Benign
-0.50
Cadd
Pathogenic
28
Dann
Uncertain
1.0
Eigen
Uncertain
0.68
Eigen_PC
Pathogenic
0.72
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.94
D;D;D;D;D
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.037
T;T;T;T;T
MetaSVM
Benign
-1.1
T
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D;D;D
PrimateAI
Uncertain
0.79
T
Polyphen
1.0
.;D;.;.;.
Vest4
0.81, 0.74, 0.77
MVP
0.50
MPC
1.0
ClinPred
0.22
T
GERP RS
5.4
Varity_R
0.63
gMVP
0.60

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: rs141086830; hg19: chr7-29546858; COSMIC: COSV56088446; COSMIC: COSV56088446; API