rs34617744

Variant summary

Our verdict is . The variant received -17 ACMG points: 0P and 17B. BA1BP4_StrongBP6_StrongBP7

The NM_001378454.1(ALMS1):c.10209T>A (p.Thr3403Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a cumulative frequency of 0.0134 (AC=21,691) in the gnomAD database across 1,614,092 control chromosomes, including 906 homozygotes. The grpmax filtering allele frequency (95% CI) is 0.162. In-silico predictor (BayesDel (noAF)) classifies this variant as likely benign. Splicing prediction tools (SpliceAI) predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign/Likely Benign (★★).

Frequency

Genomes: 𝑓 0.022 ( 124 hom., cov: 32)
Exomes 𝑓: 0.013 ( 782 hom. )

Consequence

ALMS1
NM_001378454.1 synonymous

Scores

3

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:7

Conservation

PhyloP100: 1.44

Publications

3 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: Unknown, AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, G2P, PanelApp Australia, Orphanet, Labcorp Genetics (formerly Invitae), Genomics England PanelApp

Genome browser will be placed here

new If you want to explore the variant's impact on the transcript NM_001378454.1, check out the Mutation Effect Viewer. This is especially useful for frameshift variants or if you want to visualize the effect of exon loss / intron retention.

Classification according to ACMG Germline Pathogenicity v2019

Classification was made for transcript

Our verdict: Benign. The variant received -17 ACMG points.

BP4
Computational evidence supports benign — no pathogenic computational or splicing signal (BP4); Splicing verdict: benign (Strong).; Germline computational verdict: benign (Strong).
BP6
ClinVar 2-star benign — strong (BP6); ClinVar germline classification: Benign/Likely Benign, 2 star(s).
BP7
Synonymous variant at non-conserved position with no predicted splicing impact (BP7); Synonymous at non-conserved position, no splicing concern — benign (BP7).
BA1
GnomAD effective popmax AF >5% — BA1 stand-alone benign; GnomAD reliable popmax AF = 0.1623 — exceeds 5%% threshold (BA1 applied)

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
NM_001378454.1
MANE Select
c.10209T>Ap.Thr3403Thr
synonymous
Exon 14 of 23NP_001365383.1Q8TCU4-1
ALMS1
NM_015120.4
c.10209T>Ap.Thr3403Thr
synonymous
Exon 14 of 23NP_055935.4Q8TCU4

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ALMS1
ENST00000613296.6
TSL:1 MANE Select
c.10209T>Ap.Thr3403Thr
synonymous
Exon 14 of 23ENSP00000482968.1Q8TCU4-1
ALMS1
ENST00000484298.5
TSL:1
c.10083T>Ap.Thr3361Thr
synonymous
Exon 13 of 22ENSP00000478155.1A0A087WTU9
ALMS1
ENST00000423048.5
TSL:1
n.*628T>A
3_prime_UTR
Exon 7 of 9ENSP00000399833.1H7C1D9

Frequencies

GnomAD3 genomes
AF:
0.0219
AC:
3333
AN:
152174
Hom.:
120
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0308
Gnomad AMI
AF:
0.00548
Gnomad AMR
AF:
0.0868
Gnomad ASJ
AF:
0.00202
Gnomad EAS
AF:
0.00269
Gnomad SAS
AF:
0.00415
Gnomad FIN
AF:
0.0211
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00625
Gnomad OTH
AF:
0.0172
GnomAD2 exomes
AF:
0.0320
AC:
7963
AN:
249118
AF XY:
0.0249
show subpopulations
Gnomad AFR exome
AF:
0.0336
Gnomad AMR exome
AF:
0.176
Gnomad ASJ exome
AF:
0.00269
Gnomad EAS exome
AF:
0.00189
Gnomad FIN exome
AF:
0.0179
Gnomad NFE exome
AF:
0.00616
Gnomad OTH exome
AF:
0.0242
GnomAD4 exome
AF:
0.0125
AC:
18343
AN:
1461800
Hom.:
782
Cov.:
31
AF XY:
0.0116
AC XY:
8422
AN XY:
727194
show subpopulations
African (AFR)
AF:
0.0302
AC:
1010
AN:
33480
American (AMR)
AF:
0.165
AC:
7400
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00268
AC:
70
AN:
26132
East Asian (EAS)
AF:
0.00804
AC:
319
AN:
39678
South Asian (SAS)
AF:
0.00315
AC:
272
AN:
86256
European-Finnish (FIN)
AF:
0.0182
AC:
974
AN:
53408
Middle Eastern (MID)
AF:
0.00468
AC:
27
AN:
5768
European-Non Finnish (NFE)
AF:
0.00681
AC:
7573
AN:
1111964
Other (OTH)
AF:
0.0116
AC:
698
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.489
Heterozygous variant carriers
0
975
1950
2926
3901
4876
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
410
820
1230
1640
2050
<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:
0.0220
AC:
3348
AN:
152292
Hom.:
124
Cov.:
32
AF XY:
0.0234
AC XY:
1742
AN XY:
74486
show subpopulations
African (AFR)
AF:
0.0308
AC:
1282
AN:
41566
American (AMR)
AF:
0.0873
AC:
1335
AN:
15300
Ashkenazi Jewish (ASJ)
AF:
0.00202
AC:
7
AN:
3470
East Asian (EAS)
AF:
0.00270
AC:
14
AN:
5186
South Asian (SAS)
AF:
0.00415
AC:
20
AN:
4818
European-Finnish (FIN)
AF:
0.0211
AC:
224
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00625
AC:
425
AN:
68012
Other (OTH)
AF:
0.0170
AC:
36
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
156
313
469
626
782
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
32
64
96
128
160
<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:
0.00515
Hom.:
3
Bravo
AF:
0.0294
Asia WGS
AF:
0.00722
AC:
25
AN:
3478
EpiCase
AF:
0.00698
EpiControl
AF:
0.00545

Local populations

ToMMo 61KJPN (+60KJPN MNV)
AF:
0.0148
AC:
1815
AN:
122750
Turkish Variome
AF:
0.00299
AC:
20
AN:
6692
Hom.:
0
WBBC (Westlake BioBank for Chinese) pilot
AF:
0.00123
AC:
11
AN:
8960
Hom.:
0
ABraOM SABE-WGS-1171
AF:
0.0243
AC:
57
AN:
2342
Hom.:
1

ClinVar

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

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
6.4
DANN
Benign
0.57
PhyloP100
1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.0
Mutation Taster
=100/0
polymorphism (auto)

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Publications

Other links and lift over

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