2-73572994-C-G

Variant names:

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.11117C>G(p.Ser3706Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000665 in 1,614,032 control chromosomes in the GnomAD database, including 23 homozygotes. In-silico tool predicts a benign outcome for this variant. 11/17 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S3706T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00045 ( 3 hom., cov: 32)

Exomes 𝑓: 0.00069 ( 20 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.48

Publications

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

ALMS1 links:

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=0.0057471395).

BP6

Variant 2-73572994-C-G is Benign according to our data. Variant chr2-73572994-C-G is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 459846.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 = 0.000447 (68/152238) while in subpopulation SAS AF = 0.0141 (68/4818). AF 95% confidence interval is 0.0114. There are 3 homozygotes in GnomAd4. There are 52 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 3 AR,Unknown 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ALMS1	NM_001378454.1	MANE Select	c.11117C>G	p.Ser3706Cys	missense	Exon 16 of 23	NP_001365383.1	Q8TCU4-1
	ALMS1	NM_015120.4		c.11117C>G	p.Ser3706Cys	missense	Exon 16 of 23	NP_055935.4	Q8TCU4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ALMS1	ENST00000613296.6	TSL:1 MANE Select	c.11117C>G	p.Ser3706Cys	missense	Exon 16 of 23	ENSP00000482968.1	Q8TCU4-1
ALMS1	ENST00000484298.5	TSL:1	c.10991C>G	p.Ser3664Cys	missense	Exon 15 of 22	ENSP00000478155.1	A0A087WTU9
ALMS1	ENST00000423048.5	TSL:1	n.*1536C>G		non_coding_transcript_exon	Exon 9 of 9	ENSP00000399833.1	H7C1D9

Frequencies

GnomAD3 genomes

AF:

0.000434

AC:

AN:

152120

Hom.:

Cov.:

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:

0.0137

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00132

AC:

328

AN:

248828

AF XY:

0.00169

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000886

Gnomad OTH exome

AF:

0.000661

GnomAD4 exome

AF:

0.000688

AC:

1006

AN:

1461794

Hom.:

Cov.:

AF XY:

0.000989

AC XY:

719

AN XY:

727194

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33474

American (AMR)

AF:

0.0000224

AC:

AN:

44690

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39690

South Asian (SAS)

AF:

0.0109

AC:

941

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111978

Other (OTH)

AF:

0.000944

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.487

Heterozygous variant carriers

135

202

270

337

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.000447

AC:

AN:

152238

Hom.:

Cov.:

AF XY:

0.000699

AC XY:

AN XY:

74412

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41562

American (AMR)

AF:

0.00

AC:

AN:

15288

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.0141

AC:

AN:

4818

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68002

Other (OTH)

AF:

0.00

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.512

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.000171

Hom.:

Bravo

AF:

0.0000793

ExAC

AF:

0.00146

AC:

176

Asia WGS

AF:

0.00375

AC:

AN:

3478

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Alstrom syndrome (2)

Cardiovascular phenotype (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.10

BayesDel_addAF

Benign

-0.41

BayesDel_noAF

Benign

-0.35

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.042

Eigen

Benign

0.095

Eigen_PC

Benign

0.034

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.78

MetaRNN

Benign

0.0057

MetaSVM

Benign

-1.1

PhyloP100

1.5

PrimateAI

Benign

0.31

Sift4G

Benign

0.067

Vest4

0.19

MVP

0.39

ClinPred

0.066

GERP RS

4.2

Varity_R

0.086

gMVP

0.10

Mutation Taster

=81/19

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over