Genetic Variant CHMP7:p.Arg83Ser (chr8-23246942-C-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3

The NM_152272.5(CHMP7):c.247C>A(p.Arg83Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000129 in 1,556,248 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R83C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

CHMP7
NM_152272.5 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 2.49

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 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.831

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHMP7	NM_152272.5 link	c.247C>A	p.Arg83Ser	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.247C>A	p.Arg83Ser	missense_variant	Exon 2 of 11	1	NM_152272.5	ENSP00000380794.1		Q8WUX9-1

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.12e-7

AC:

AN:

1404052

Hom.:

Cov.:

AF XY:

0.00000144

AC XY:

AN XY:

693776

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32334

American (AMR)

AF:

0.0000275

AC:

AN:

36382

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25204

East Asian (EAS)

AF:

0.00

AC:

AN:

36894

South Asian (SAS)

AF:

0.00

AC:

AN:

80128

European-Finnish (FIN)

AF:

0.00

AC:

AN:

44984

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5124

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1084682

Other (OTH)

AF:

0.00

AC:

AN:

58320

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74352

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41446

American (AMR)

AF:

0.0000654

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Uncertain

0.15

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.32

T;T;T

Eigen

Uncertain

0.19

Eigen_PC

Uncertain

0.23

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.84

.;T;T

M_CAP

Benign

0.051

MetaRNN

Pathogenic

0.83

D;D;D

MetaSVM

Benign

-0.74

MutationAssessor

Uncertain

2.6

M;M;.

PhyloP100

2.5

PrimateAI

Pathogenic

0.84

PROVEAN

Pathogenic

-5.4

D;D;D

REVEL

Uncertain

0.37

Sift

Uncertain

0.012

D;D;D

Sift4G

Pathogenic

0.0

D;D;D

Polyphen

0.76

P;P;.

Vest4

0.49

MutPred

0.79

Loss of MoRF binding (P = 0.0211);Loss of MoRF binding (P = 0.0211);Loss of MoRF binding (P = 0.0211);

MVP

0.84

MPC

0.73

ClinPred

0.99

GERP RS

4.3

PromoterAI

-0.045

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.78

gMVP

0.95

Mutation Taster

=54/46

polymorphism

(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