NM_015681.6:c.181C>T

Variant names:

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM1BP6_Very_StrongBS1BS2

The NM_015681.6(B9D1):c.181C>T(p.Arg61Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00182 in 1,614,102 control chromosomes in the GnomAD database, including 48 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0098 ( 24 hom., cov: 32)

Exomes 𝑓: 0.00099 ( 24 hom. )

Consequence

B9D1
NM_015681.6 missense

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 2.96

Variant links:

Genes affected

B9D1 (HGNC:24123): (B9 domain containing 1) This gene encodes a B9 domain-containing protein, one of several that are involved in ciliogenesis. Alterations in expression of this gene have been found in a family with Meckel syndrome. Meckel syndrome has been associated with at least six different genes. This gene is located within the Smith-Magenis syndrome region on chromosome 17. [provided by RefSeq, Mar 2016]

B9D1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -14 ACMG points.

PM1

In a chain B9 domain-containing protein 1 (size 203) in uniprot entity B9D1_HUMAN there are 9 pathogenic changes around while only 2 benign (82%) in NM_015681.6

BP6

Variant 17-19357903-G-A is Benign according to our data. Variant chr17-19357903-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 260671.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.0098 (1492/152252) while in subpopulation AFR AF= 0.0341 (1418/41544). AF 95% confidence interval is 0.0327. There are 24 homozygotes in gnomad4. There are 699 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 24 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
B9D1	NM_015681.6 link	c.181C>T	p.Arg61Trp	missense_variant	Exon 3 of 7	ENST00000261499.11	NP_056496.1	Q9UPM9-1B4DEW0

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
B9D1	ENST00000261499.11 link	c.181C>T	p.Arg61Trp	missense_variant	Exon 3 of 7	1	NM_015681.6	ENSP00000261499.4		Q9UPM9-1

Frequencies

GnomAD3 genomes

AF:

0.00981

AC:

1492

AN:

152136

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0342

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00347

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:

0.000103

Gnomad OTH

AF:

0.00670

GnomAD3 exomes

AF:

0.00260

AC:

653

AN:

251442

Hom.:

AF XY:

0.00181

AC XY:

246

AN XY:

135900

show subpopulations

Gnomad AFR exome

AF:

0.0350

Gnomad AMR exome

AF:

0.00211

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.000196

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000993

AC:

1451

AN:

1461850

Hom.:

Cov.:

AF XY:

0.000846

AC XY:

615

AN XY:

727224

show subpopulations

Gnomad4 AFR exome

AF:

0.0360

Gnomad4 AMR exome

AF:

0.00212

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000151

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000153

Gnomad4 OTH exome

AF:

0.00187

GnomAD4 genome

AF:

0.00980

AC:

1492

AN:

152252

Hom.:

Cov.:

AF XY:

0.00939

AC XY:

699

AN XY:

74448

show subpopulations

Gnomad4 AFR

AF:

0.0341

Gnomad4 AMR

AF:

0.00346

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00664

Alfa

AF:

0.00180

Hom.:

Bravo

AF:

0.0116

ESP6500AA

AF:

0.0384

AC:

169

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00309

AC:

375

Asia WGS

AF:

0.00260

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

May 09, 2016

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Meckel-Gruber syndrome;C0431399:Familial aplasia of the vermis

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

not provided

Benign:1

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Meckel syndrome, type 9

Benign:1

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.14

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.12

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.14

.;.;T;T;T;.;T;.

Eigen

Benign

-0.10

Eigen_PC

Benign

-0.26

FATHMM_MKL

Benign

0.14

LIST_S2

Uncertain

0.94

D;D;D;D;D;D;D;D

MetaRNN

Benign

0.0039

T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.82

MutationAssessor

Benign

1.8

.;.;L;.;.;L;.;.

PrimateAI

Benign

0.35

PROVEAN

Uncertain

-4.3

D;.;D;D;D;D;D;.

REVEL

Benign

0.21

Sift

Uncertain

0.012

D;.;D;D;D;D;D;.

Sift4G

Uncertain

0.013

D;.;D;D;D;D;D;.

Polyphen

0.99

.;.;D;.;.;.;.;.

Vest4

0.37

MVP

0.75

MPC

0.56

ClinPred

0.022

GERP RS

3.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.080

gMVP

0.34

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.22

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.22

Position offset: 48

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over