rs77298332

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_024649.5(BBS1):c.1349G>A(p.Arg450Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00371 in 1,611,024 control chromosomes in the GnomAD database, including 193 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict 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. R450W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.020 ( 90 hom., cov: 31)

Exomes 𝑓: 0.0020 ( 103 hom. )

Consequence

BBS1
NM_024649.5 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 4.01

Publications

5 publications found

Variant links:

Genes affected

BBS1 (HGNC:966): (Bardet-Biedl syndrome 1) Mutations in this gene have been observed in patients with the major form (type 1) of Bardet-Biedl syndrome. The encoded protein may play a role in eye, limb, cardiac and reproductive system development. [provided by RefSeq, Jul 2008]

BBS1 links:

ENSG00000256349 (HGNC:):

ENSG00000256349 links:

ZDHHC24 (HGNC:27387): (zinc finger DHHC-type containing 24) Predicted to enable protein-cysteine S-palmitoyltransferase activity. Predicted to be involved in peptidyl-L-cysteine S-palmitoylation and protein targeting to membrane. Predicted to be integral component of membrane. Predicted to be active in Golgi apparatus and endoplasmic reticulum. [provided by Alliance of Genome Resources, Apr 2022]

ZDHHC24 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=0.0029770434).

BP6

Variant 11-66529828-G-A is Benign according to our data. Variant chr11-66529828-G-A is described in ClinVar as [Benign]. Clinvar id is 194431.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0664 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BBS1	NM_024649.5 link	c.1349G>A	p.Arg450Gln	missense_variant	Exon 14 of 17	ENST00000318312.12	NP_078925.3	Q8NFJ9-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BBS1	ENST00000318312.12 link	c.1349G>A	p.Arg450Gln	missense_variant	Exon 14 of 17	1	NM_024649.5	ENSP00000317469.7		Q8NFJ9-1
ENSG00000256349	ENST00000419755.3 link	c.1460G>A	p.Arg487Gln	missense_variant	Exon 14 of 17	2		ENSP00000398526.3

Frequencies

GnomAD3 genomes

AF:

0.0197

AC:

2997

AN:

151886

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0683

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00787

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000235

Gnomad OTH

AF:

0.0178

GnomAD2 exomes

AF:

0.00540

AC:

1341

AN:

248268

AF XY:

0.00382

show subpopulations

Gnomad AFR exome

AF:

0.0710

Gnomad AMR exome

AF:

0.00425

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000159

Gnomad OTH exome

AF:

0.00147

GnomAD4 exome

AF:

0.00203

AC:

2968

AN:

1459020

Hom.:

103

Cov.:

AF XY:

0.00172

AC XY:

1247

AN XY:

725982

show subpopulations

African (AFR)

AF:

0.0703

AC:

2355

AN:

33478

American (AMR)

AF:

0.00432

AC:

193

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39692

South Asian (SAS)

AF:

0.000417

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

50620

Middle Eastern (MID)

AF:

0.00243

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000998

AC:

111

AN:

1111978

Other (OTH)

AF:

0.00426

AC:

257

AN:

60370

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

179

358

538

717

896

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

140

210

280

350

<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:

0.0198

AC:

3011

AN:

152004

Hom.:

Cov.:

AF XY:

0.0189

AC XY:

1405

AN XY:

74300

show subpopulations

African (AFR)

AF:

0.0685

AC:

2838

AN:

41428

American (AMR)

AF:

0.00779

AC:

119

AN:

15268

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5152

South Asian (SAS)

AF:

0.00

AC:

AN:

4806

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00340

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000235

AC:

AN:

67978

Other (OTH)

AF:

0.0176

AC:

AN:

2100

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.503

Heterozygous variant carriers

144

288

433

577

721

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

108

144

180

<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:

0.00787

Hom.:

Bravo

AF:

0.0229

ESP6500AA

AF:

0.0668

AC:

294

ESP6500EA

AF:

0.000466

AC:

ExAC

AF:

0.00664

AC:

806

Asia WGS

AF:

0.00346

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 1

Benign:3

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Sep 16, 2020

Natera, Inc.

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

- -

Jun 02, 2017

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not specified

Benign:2

Feb 17, 2015

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Bardet-Biedl syndrome

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.10

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.36

.;T;T;.

Eigen

Benign

-0.057

Eigen_PC

Benign

0.054

FATHMM_MKL

Uncertain

0.88

LIST_S2

Uncertain

0.90

D;D;D;D

MetaRNN

Benign

0.0030

T;T;T;T

MetaSVM

Benign

-0.40

MutationAssessor

Benign

1.1

.;L;.;.

PhyloP100

4.0

PrimateAI

Benign

0.46

PROVEAN

Benign

-2.0

N;N;N;N

REVEL

Uncertain

0.34

Sift

Benign

0.20

T;T;T;T

Sift4G

Benign

0.093

T;T;T;T

Polyphen

0.17, 0.60

.;B;P;.

Vest4

0.21

MVP

0.92

MPC

0.18

ClinPred

0.0090

GERP RS

3.5

Varity_R

0.27

gMVP

0.45

Mutation Taster

=69/31

polymorphism (auto)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.080

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over