rs142022233

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001378454.1(ALMS1):​c.9914A>G​(p.Asn3305Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00356 in 1,614,066 control chromosomes in the GnomAD database, including 67 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. N3305I) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0024 ( 2 hom., cov: 32)
Exomes 𝑓: 0.0037 ( 65 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

5
8

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: 4.18

Publications

12 publications found
Variant links:
Genes affected
ALMS1 (HGNC:428): (ALMS1 centrosome and basal body associated protein) This gene encodes a protein containing a large tandem-repeat domain as well as additional low complexity regions. The encoded protein functions in microtubule organization, particularly in the formation and maintanance of cilia. Mutations in this gene cause Alstrom syndrome. There is a pseudogene for this gene located adjacent in the same region of chromosome 2. Alternative splice variants have been described but their full length nature has not been determined. [provided by RefSeq, Apr 2014]
ALMS1 Gene-Disease associations (from GenCC):
  • Alstrom syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, PanelApp Australia, G2P, Orphanet, Genomics England PanelApp

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.008951098).
BP6
Variant 2-73550273-A-G is Benign according to our data. Variant chr2-73550273-A-G is described in ClinVar as Benign. ClinVar VariationId is 393379.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.00236 (359/152306) while in subpopulation SAS AF = 0.024 (116/4828). AF 95% confidence interval is 0.0205. There are 2 homozygotes in GnomAd4. There are 193 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001378454.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
NM_001378454.1
MANE Select
c.9914A>Gp.Asn3305Ser
missense
Exon 13 of 23NP_001365383.1
ALMS1
NM_015120.4
c.9914A>Gp.Asn3305Ser
missense
Exon 13 of 23NP_055935.4

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
ENST00000613296.6
TSL:1 MANE Select
c.9914A>Gp.Asn3305Ser
missense
Exon 13 of 23ENSP00000482968.1
ALMS1
ENST00000484298.5
TSL:1
c.9788A>Gp.Asn3263Ser
missense
Exon 12 of 22ENSP00000478155.1
ALMS1
ENST00000423048.5
TSL:1
n.*333A>G
non_coding_transcript_exon
Exon 6 of 9ENSP00000399833.1

Frequencies

GnomAD3 genomes
AF:
0.00234
AC:
356
AN:
152188
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000362
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00235
Gnomad ASJ
AF:
0.00260
Gnomad EAS
AF:
0.00115
Gnomad SAS
AF:
0.0234
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.00248
Gnomad OTH
AF:
0.00287
GnomAD2 exomes
AF:
0.00534
AC:
1332
AN:
249250
AF XY:
0.00667
show subpopulations
Gnomad AFR exome
AF:
0.0000646
Gnomad AMR exome
AF:
0.00244
Gnomad ASJ exome
AF:
0.00258
Gnomad EAS exome
AF:
0.000780
Gnomad FIN exome
AF:
0.000139
Gnomad NFE exome
AF:
0.00319
Gnomad OTH exome
AF:
0.00529
GnomAD4 exome
AF:
0.00368
AC:
5384
AN:
1461760
Hom.:
65
Cov.:
31
AF XY:
0.00449
AC XY:
3265
AN XY:
727180
show subpopulations
African (AFR)
AF:
0.000329
AC:
11
AN:
33476
American (AMR)
AF:
0.00300
AC:
134
AN:
44714
Ashkenazi Jewish (ASJ)
AF:
0.00337
AC:
88
AN:
26128
East Asian (EAS)
AF:
0.000479
AC:
19
AN:
39694
South Asian (SAS)
AF:
0.0270
AC:
2330
AN:
86226
European-Finnish (FIN)
AF:
0.000131
AC:
7
AN:
53410
Middle Eastern (MID)
AF:
0.0156
AC:
90
AN:
5768
European-Non Finnish (NFE)
AF:
0.00222
AC:
2472
AN:
1111958
Other (OTH)
AF:
0.00386
AC:
233
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
Heterozygous variant carriers
0
246
491
737
982
1228
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
104
208
312
416
520
<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:
0.00236
AC:
359
AN:
152306
Hom.:
2
Cov.:
32
AF XY:
0.00259
AC XY:
193
AN XY:
74484
show subpopulations
African (AFR)
AF:
0.000361
AC:
15
AN:
41566
American (AMR)
AF:
0.00235
AC:
36
AN:
15310
Ashkenazi Jewish (ASJ)
AF:
0.00260
AC:
9
AN:
3466
East Asian (EAS)
AF:
0.00116
AC:
6
AN:
5186
South Asian (SAS)
AF:
0.0240
AC:
116
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10614
Middle Eastern (MID)
AF:
0.00680
AC:
2
AN:
294
European-Non Finnish (NFE)
AF:
0.00248
AC:
169
AN:
68022
Other (OTH)
AF:
0.00284
AC:
6
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.507
Heterozygous variant carriers
0
19
38
57
76
95
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
10
20
30
40
50
<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:
0.00263
Hom.:
12
Bravo
AF:
0.00184
TwinsUK
AF:
0.00297
AC:
11
ALSPAC
AF:
0.00234
AC:
9
ESP6500AA
AF:
0.000261
AC:
1
ESP6500EA
AF:
0.00448
AC:
37
ExAC
AF:
0.00596
AC:
720
Asia WGS
AF:
0.0130
AC:
46
AN:
3478
EpiCase
AF:
0.00376
EpiControl
AF:
0.00445

ClinVar

ClinVar submissions as Germline

Significance:Benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
3
not specified (3)
-
-
2
Alstrom syndrome (2)
-
-
2
not provided (2)
-
-
1
Cardiovascular phenotype (1)
-
-
1
Monogenic diabetes (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.35
T
BayesDel_noAF
Benign
-0.26
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.91
D
MetaRNN
Benign
0.0090
T
MetaSVM
Benign
-1.2
T
PhyloP100
4.2
PrimateAI
Benign
0.47
T
Sift4G
Benign
0.45
T
Vest4
0.40
MVP
0.39
ClinPred
0.048
T
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.12
gMVP
0.25
Mutation Taster
=94/6
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs142022233; hg19: chr2-73777400; COSMIC: COSV107272394; API