chr17-80997071-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_024591.5(CHMP6):c.413G>A(p.Arg138Gln) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000589 in 1,613,492 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/24 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

CHMP6
NM_024591.5 missense, splice_region

Scores

Splicing: ADA: 0.01149

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.91

Variant links:

Genes affected

CHMP6 (HGNC:25675): (charged multivesicular body protein 6) This gene encodes a member of the chromatin-modifying protein/charged multivesicular body protein family. Proteins in this family are part of the ESCRT-III (endosomal sorting complex required for transport III) which degrades surface receptors, and in biosynthesis of endosomes. [provided by RefSeq, Mar 2012]

CHMP6 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.059371024).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CHMP6	NM_024591.5 link	c.413G>A	p.Arg138Gln	missense_variant, splice_region_variant	Exon 5 of 8	ENST00000325167.9	NP_078867.2	Q96FZ7
CHMP6	XM_005257668.1 link	c.413G>A	p.Arg138Gln	missense_variant, splice_region_variant	Exon 5 of 7		XP_005257725.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
CHMP6	ENST00000325167.9 link	c.413G>A	p.Arg138Gln	missense_variant, splice_region_variant	Exon 5 of 8	1	NM_024591.5	ENSP00000317468.5	Q96FZ7
CHMP6	ENST00000572778.5 link	c.350G>A	p.Arg117Gln	missense_variant, splice_region_variant	Exon 4 of 6	2		ENSP00000461098.1	I3L4A1
CHMP6	ENST00000571457.1 link	c.287G>A	p.Arg96Gln	missense_variant, splice_region_variant	Exon 4 of 7	3		ENSP00000461238.1	I3L4G8
CHMP6	ENST00000572525.5 link	c.155G>A	p.Arg52Gln	missense_variant, splice_region_variant	Exon 5 of 8	3		ENSP00000460389.1	I3L3E4

Frequencies

GnomAD3 genomes

AF:

0.0000921

AC:

AN:

152066

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000882

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000479

AC:

AN:

250446

AF XY:

0.0000664

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:

0.0000354

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000554

AC:

AN:

1461308

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

726980

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33472

American (AMR)

AF:

0.00

AC:

AN:

44692

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26114

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39698

South Asian (SAS)

AF:

0.000186

AC:

AN:

86210

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53370

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5564

European-Non Finnish (NFE)

AF:

0.0000567

AC:

AN:

1111836

Other (OTH)

AF:

0.0000166

AC:

AN:

60352

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000920

AC:

AN:

152184

Hom.:

Cov.:

AF XY:

0.0000538

AC XY:

AN XY:

74396

show subpopulations

African (AFR)

AF:

0.000120

AC:

AN:

41522

American (AMR)

AF:

0.0000654

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.000415

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10608

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000882

AC:

AN:

67994

Other (OTH)

AF:

0.00

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.511

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000966

Hom.:

Bravo

AF:

0.0000718

ExAC

AF:

0.0000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jan 10, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.413G>A (p.R138Q) alteration is located in exon 5 (coding exon 5) of the CHMP6 gene. This alteration results from a G to A substitution at nucleotide position 413, causing the arginine (R) at amino acid position 138 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.073

BayesDel_addAF

Benign

-0.24

BayesDel_noAF

Benign

-0.29

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.17

T;T;.;.

Eigen

Benign

-0.31

Eigen_PC

Benign

-0.17

FATHMM_MKL

Uncertain

0.77

LIST_S2

Uncertain

0.92

D;D;D;D

M_CAP

Benign

0.085

MetaRNN

Benign

0.059

T;T;T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

0.96

.;L;.;.

PhyloP100

2.9

PrimateAI

Benign

0.44

PROVEAN

Benign

-0.74

.;N;.;.

REVEL

Benign

0.098

Sift

Benign

0.68

.;T;.;.

Sift4G

Benign

0.25

T;T;T;T

Polyphen

0.060

.;B;.;.

Vest4

0.48

MVP

0.54

MPC

0.082

ClinPred

0.059

GERP RS

2.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.045

gMVP

0.69

Mutation Taster

=71/29

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.011

dbscSNV1_RF

Benign

0.14

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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chr17-80997071-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over