rs188807564

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_001378454.1(ALMS1):c.4988C>T(p.Thr1663Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00046 in 1,613,754 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/18 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. T1663A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0025 ( 4 hom., cov: 32)

Exomes 𝑓: 0.00025 ( 5 hom. )

Consequence

ALMS1
NM_001378454.1 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:10

Conservation

PhyloP100: -3.47

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 -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.0035298467).

BP6

Variant 2-73451515-C-T is Benign according to our data. Variant chr2-73451515-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 241000.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00251 (381/151930) while in subpopulation AFR AF = 0.00886 (367/41438). AF 95% confidence interval is 0.00811. There are 4 homozygotes in GnomAd4. There are 159 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 4 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.4988C>T	p.Thr1663Ile	missense	Exon 8 of 23	NP_001365383.1	Q8TCU4-1
	ALMS1	NM_015120.4		c.4988C>T	p.Thr1663Ile	missense	Exon 8 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.4988C>T	p.Thr1663Ile	missense	Exon 8 of 23	ENSP00000482968.1	Q8TCU4-1
ALMS1	ENST00000484298.5	TSL:1	c.4862C>T	p.Thr1621Ile	missense	Exon 7 of 22	ENSP00000478155.1	A0A087WTU9
ALMS1	ENST00000684548.1		c.4607C>T	p.Thr1536Ile	missense	Exon 6 of 21	ENSP00000507421.1	A0A804HJA5

Frequencies

GnomAD3 genomes

AF:

0.00252

AC:

383

AN:

151810

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00893

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000590

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00144

GnomAD2 exomes

AF:

0.000582

AC:

145

AN:

249086

AF XY:

0.000414

show subpopulations

Gnomad AFR exome

AF:

0.00873

Gnomad AMR exome

AF:

0.000174

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000266

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.000248

AC:

362

AN:

1461824

Hom.:

Cov.:

AF XY:

0.000206

AC XY:

150

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.00953

AC:

319

AN:

33472

American (AMR)

AF:

0.000201

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000450

AC:

AN:

1111974

Other (OTH)

AF:

0.000464

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.468

Heterozygous variant carriers

112

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:

0.00251

AC:

381

AN:

151930

Hom.:

Cov.:

AF XY:

0.00214

AC XY:

159

AN XY:

74276

show subpopulations

African (AFR)

AF:

0.00886

AC:

367

AN:

41438

American (AMR)

AF:

0.000589

AC:

AN:

15276

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3464

East Asian (EAS)

AF:

0.00

AC:

AN:

5128

South Asian (SAS)

AF:

0.00

AC:

AN:

4802

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

67918

Other (OTH)

AF:

0.00142

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.495

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:

0.000816

Hom.:

Bravo

AF:

0.00284

ESP6500AA

AF:

0.00973

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000720

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (4)

Alstrom syndrome (3)

not provided (2)

Cardiovascular phenotype (1)

Monogenic diabetes (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.67

BayesDel_noAF

Benign

-0.73

CADD

Benign

0.0050

(source)

DANN

Benign

0.31

DEOGEN2

Benign

0.014

Eigen

Benign

-1.8

Eigen_PC

Benign

-1.8

FATHMM_MKL

Benign

0.053

LIST_S2

Benign

0.44

M_CAP

Benign

0.0035

MetaRNN

Benign

0.0035

MetaSVM

Benign

-1.0

PhyloP100

-3.5

PrimateAI

Benign

0.28

Sift4G

Benign

0.18

Vest4

0.10

MVP

0.081

ClinPred

0.0014

GERP RS

-3.9

Varity_R

0.022

gMVP

0.064

Mutation Taster

=99/1

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

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