Genetic Variant NM_004067.4:c.754G>A (chr7-29499881-G-A) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_004067.4(CHN2):c.754G>A(p.Val252Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000613 in 1,597,844 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000064 ( 0 hom. )

Consequence

CHN2
NM_004067.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.77

Publications

0 publications found

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]

CHN2 links:

PRR15-DT (HGNC:55866): (PRR15 divergent transcript)

PRR15-DT links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004067.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CHN2	NM_004067.4	MANE Select	c.754G>A	p.Val252Ile	missense	Exon 9 of 13	NP_004058.1	P52757-1
CHN2	NM_001293070.2		c.793G>A	p.Val265Ile	missense	Exon 10 of 14	NP_001279999.1	B7Z1V0
CHN2	NM_001293072.2		c.709G>A	p.Val237Ile	missense	Exon 9 of 13	NP_001280001.1	B7Z1W9

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
CHN2	ENST00000222792.11	TSL:1 MANE Select	c.754G>A	p.Val252Ile	missense	Exon 9 of 13	ENSP00000222792.7	P52757-1
CHN2	ENST00000409041.8	TSL:1	c.346G>A	p.Val116Ile	missense	Exon 3 of 5	ENSP00000386849.5	B3VCF5
CHN2	ENST00000439711.7	TSL:1	c.346G>A	p.Val116Ile	missense	Exon 3 of 5	ENSP00000387425.3	B3VCF6

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151966

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000504

AC:

AN:

237892

AF XY:

0.0000390

show subpopulations

Gnomad AFR exome

AF:

0.000187

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000729

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000643

AC:

AN:

1445878

Hom.:

Cov.:

AF XY:

0.0000585

AC XY:

AN XY:

718520

show subpopulations

African (AFR)

AF:

0.000213

AC:

AN:

32832

American (AMR)

AF:

0.00

AC:

AN:

41030

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25244

East Asian (EAS)

AF:

0.00

AC:

AN:

39462

South Asian (SAS)

AF:

0.0000363

AC:

AN:

82534

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53090

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5708

European-Non Finnish (NFE)

AF:

0.0000723

AC:

AN:

1106254

Other (OTH)

AF:

0.0000502

AC:

AN:

59724

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.456

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000329

AC:

AN:

151966

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74208

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41368

American (AMR)

AF:

0.00

AC:

AN:

15240

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5182

South Asian (SAS)

AF:

0.00

AC:

AN:

4792

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2086

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.535

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000582

Hom.:

Bravo

AF:

0.0000567

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.27

PhyloP100

6.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.23

gMVP

0.46

Mutation Taster

=3/97

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over