rs201261255

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_020412.5(CHMP1B):​c.185C>A​(p.Ala62Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000991 in 1,613,956 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000091 ( 0 hom. )

Consequence

CHMP1B
NM_020412.5 missense

Scores

1
7
9

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.10

Publications

5 publications found
Variant links:
Genes affected
CHMP1B (HGNC:24287): (charged multivesicular body protein 1B) CHMP1B belongs to the chromatin-modifying protein/charged multivesicular body protein (CHMP) family. These proteins are components of ESCRT-III (endosomal sorting complex required for transport III), a complex involved in degradation of surface receptor proteins and formation of endocytic multivesicular bodies (MVBs). Some CHMPs have both nuclear and cytoplasmic/vesicular distributions, and one such CHMP, CHMP1A (MIM 164010), is required for both MVB formation and regulation of cell cycle progression (Tsang et al., 2006 [PubMed 16730941]).[supplied by OMIM, Mar 2008]
GNAL (HGNC:4388): (G protein subunit alpha L) This gene encodes a stimulatory G protein alpha subunit which mediates odorant signaling in the olfactory epithelium. This protein couples dopamine type 1 receptors and adenosine A2A receptors and is widely expressed in the central nervous system. Mutations in this gene have been associated with dystonia 25 and this gene is located in a susceptibility region for bipolar disorder and schizophrenia. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]
CHMP1B-AS1 (HGNC:52778): (CHMP1B antisense RNA 1)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.09027842).
BS2
High AC in GnomAd4 at 27 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020412.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHMP1B
NM_020412.5
MANE Select
c.185C>Ap.Ala62Glu
missense
Exon 1 of 1NP_065145.2
GNAL
NM_182978.4
MANE Select
c.723-10699C>A
intron
N/ANP_892023.1P38405-2
GNAL
NM_001369387.1
MANE Plus Clinical
c.492-10699C>A
intron
N/ANP_001356316.1A8K1Y9

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
CHMP1B
ENST00000526991.3
TSL:6 MANE Select
c.185C>Ap.Ala62Glu
missense
Exon 1 of 1ENSP00000432279.1Q7LBR1
GNAL
ENST00000334049.11
TSL:1 MANE Select
c.723-10699C>A
intron
N/AENSP00000334051.5P38405-2
GNAL
ENST00000423027.8
TSL:1 MANE Plus Clinical
c.492-10699C>A
intron
N/AENSP00000408489.2P38405-1

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152146
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00170
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000132
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.000233
AC:
58
AN:
249196
AF XY:
0.000252
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:
0.00162
Gnomad NFE exome
AF:
0.000195
Gnomad OTH exome
AF:
0.000165
GnomAD4 exome
AF:
0.0000910
AC:
133
AN:
1461692
Hom.:
0
Cov.:
31
AF XY:
0.0000935
AC XY:
68
AN XY:
727130
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00127
AC:
68
AN:
53398
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000504
AC:
56
AN:
1111856
Other (OTH)
AF:
0.000133
AC:
8
AN:
60374
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
9
18
28
37
46
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:
0.000177
AC:
27
AN:
152264
Hom.:
0
Cov.:
33
AF XY:
0.000188
AC XY:
14
AN XY:
74448
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41564
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00170
AC:
18
AN:
10594
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000132
AC:
9
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.490
Heterozygous variant carriers
0
2
3
5
6
8
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:
0.0000929
Hom.:
1
Bravo
AF:
0.0000302
ESP6500AA
AF:
0.00
AC:
0
ESP6500EA
AF:
0.000118
AC:
1
ExAC
AF:
0.000215
AC:
26
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.84
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.29
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.65
D
Eigen
Benign
0.12
Eigen_PC
Benign
0.020
FATHMM_MKL
Benign
0.067
N
LIST_S2
Uncertain
0.95
D
M_CAP
Benign
0.073
D
MetaRNN
Benign
0.090
T
MetaSVM
Uncertain
0.091
D
PhyloP100
1.1
PrimateAI
Uncertain
0.58
T
PROVEAN
Uncertain
-2.6
D
REVEL
Uncertain
0.45
Sift
Benign
0.18
T
Sift4G
Benign
0.17
T
Polyphen
0.78
P
Vest4
0.30
MVP
0.78
MPC
1.5
ClinPred
0.23
T
GERP RS
1.3
PromoterAI
0.11
Neutral
Varity_R
0.43
gMVP
0.75
Mutation Taster
=80/20
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs201261255; hg19: chr18-11851695; API