chr17-80994653-G-A

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_024591.5(CHMP6):​c.136G>A​(p.Ala46Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000322 in 1,582,574 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

CHMP6
NM_024591.5 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.89

Publications

0 publications found
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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.16681841).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CHMP6NM_024591.5 linkc.136G>A p.Ala46Thr missense_variant Exon 2 of 8 ENST00000325167.9 NP_078867.2 Q96FZ7
CHMP6XM_005257668.1 linkc.136G>A p.Ala46Thr missense_variant Exon 2 of 7 XP_005257725.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CHMP6ENST00000325167.9 linkc.136G>A p.Ala46Thr missense_variant Exon 2 of 8 1 NM_024591.5 ENSP00000317468.5 Q96FZ7
CHMP6ENST00000572778.5 linkc.73G>A p.Ala25Thr missense_variant Exon 1 of 6 2 ENSP00000461098.1 I3L4A1
CHMP6ENST00000571457.1 linkc.10G>A p.Ala4Thr missense_variant Exon 1 of 7 3 ENSP00000461238.1 I3L4G8
CHMP6ENST00000572525.5 linkc.-123G>A 5_prime_UTR_variant Exon 2 of 8 3 ENSP00000460389.1 I3L3E4

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152162
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000639
AC:
12
AN:
187790
AF XY:
0.000118
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000367
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000878
Gnomad OTH exome
AF:
0.000418
GnomAD4 exome
AF:
0.0000308
AC:
44
AN:
1430412
Hom.:
0
Cov.:
31
AF XY:
0.0000395
AC XY:
28
AN XY:
708516
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
32954
American (AMR)
AF:
0.0000512
AC:
2
AN:
39068
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25412
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38430
South Asian (SAS)
AF:
0.0000613
AC:
5
AN:
81524
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49450
Middle Eastern (MID)
AF:
0.000350
AC:
2
AN:
5718
European-Non Finnish (NFE)
AF:
0.0000291
AC:
32
AN:
1098548
Other (OTH)
AF:
0.0000506
AC:
3
AN:
59308
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000460
AC:
7
AN:
152162
Hom.:
0
Cov.:
32
AF XY:
0.0000673
AC XY:
5
AN XY:
74326
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41426
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4838
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.504
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000112
Hom.:
0
Bravo
AF:
0.0000718
ExAC
AF:
0.0000424
AC:
5

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Mar 07, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.136G>A (p.A46T) alteration is located in exon 2 (coding exon 2) of the CHMP6 gene. This alteration results from a G to A substitution at nucleotide position 136, causing the alanine (A) at amino acid position 46 to be replaced by a threonine (T). 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
0.066
BayesDel_addAF
Benign
-0.25
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.19
T;.;.
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.059
FATHMM_MKL
Benign
0.73
D
LIST_S2
Uncertain
0.88
D;D;D
M_CAP
Uncertain
0.11
D
MetaRNN
Benign
0.17
T;T;T
MetaSVM
Benign
-0.81
T
MutationAssessor
Benign
1.5
L;.;.
PhyloP100
2.9
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.66
N;.;.
REVEL
Benign
0.15
Sift
Benign
0.34
T;.;.
Sift4G
Benign
0.42
T;T;T
Polyphen
0.28
B;.;.
Vest4
0.31
MutPred
0.50
Gain of phosphorylation at A46 (P = 0.0103);.;.;
MVP
0.43
MPC
0.065
ClinPred
0.070
T
GERP RS
4.4
PromoterAI
0.0012
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.061
gMVP
0.058
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs746599881; hg19: chr17-78968453; COSMIC: COSV57327098; COSMIC: COSV57327098; API