Genetic Variant CHMP7:p.Pro22Arg (chr8-23246760-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_152272.5(CHMP7):c.65C>G(p.Pro22Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00000142 in 1,405,536 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P22L) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CHMP7
NM_152272.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.80

Publications

0 publications found

Variant links:

Genes affected

CHMP7 (HGNC:28439): (charged multivesicular body protein 7) Involved in several processes, including late endosome to vacuole transport; midbody abscission; and mitotic nuclear division. Located in cytosol; nuclear envelope; and nucleoplasm. Part of ESCRT III complex. Colocalizes with chromatin. [provided by Alliance of Genome Resources, Apr 2022]

CHMP7 links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.32188195).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHMP7	NM_152272.5 link	c.65C>G	p.Pro22Arg	missense_variant	Exon 2 of 11	ENST00000397677.6	NP_689485.1	Q8WUX9-1B3KUH0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CHMP7	ENST00000397677.6 link	c.65C>G	p.Pro22Arg	missense_variant	Exon 2 of 11	1	NM_152272.5	ENSP00000380794.1		Q8WUX9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000611

AC:

AN:

163642

AF XY:

0.0000114

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000153

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000142

AC:

AN:

1405536

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

694070

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

31832

American (AMR)

AF:

0.00

AC:

AN:

36330

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25264

East Asian (EAS)

AF:

0.00

AC:

AN:

36110

South Asian (SAS)

AF:

0.00

AC:

AN:

79836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49434

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5286

European-Non Finnish (NFE)

AF:

9.23e-7

AC:

AN:

1083206

Other (OTH)

AF:

0.0000172

AC:

AN:

58238

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Uncertain

0.14

BayesDel_noAF

Uncertain

-0.030

CADD

Pathogenic

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.26

T;T;T

Eigen

Pathogenic

0.74

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.72

.;T;T

M_CAP

Benign

0.029

MetaRNN

Benign

0.32

T;T;T

MetaSVM

Benign

-0.33

MutationAssessor

Benign

1.8

L;L;.

PhyloP100

3.8

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-1.8

N;N;N

REVEL

Benign

0.18

Sift

Uncertain

0.012

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

1.0

D;D;.

Vest4

0.53

MutPred

0.28

Loss of catalytic residue at P21 (P = 0.0131);Loss of catalytic residue at P21 (P = 0.0131);Loss of catalytic residue at P21 (P = 0.0131);

MVP

0.69

MPC

0.65

ClinPred

0.61

GERP RS

5.8

PromoterAI

0.048

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.46

gMVP

0.60

Mutation Taster

=36/64

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over