Genetic Variant NM_153704.6:c.*19T>C (chr8-93816471-T-C) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_153704.6(TMEM67):c.*19T>C variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0032 in 1,442,244 control chromosomes in the GnomAD database, including 116 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 71 hom., cov: 33)

Exomes 𝑓: 0.0017 ( 45 hom. )

Consequence

TMEM67
NM_153704.6 3_prime_UTR

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.0280

Variant links:

Genes affected

TMEM67 (HGNC:28396): (transmembrane protein 67) The protein encoded by this gene localizes to the primary cilium and to the plasma membrane. The gene functions in centriole migration to the apical membrane and formation of the primary cilium. Multiple transcript variants encoding different isoforms have been found for this gene. Defects in this gene are a cause of Meckel syndrome type 3 (MKS3) and Joubert syndrome type 6 (JBTS6). [provided by RefSeq, Nov 2008]

TMEM67 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.84).

BP6

Variant 8-93816471-T-C is Benign according to our data. Variant chr8-93816471-T-C is described in ClinVar as [Likely_benign]. Clinvar id is 262739.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BA1

GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.052 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM67	NM_153704.6 link	c.*19T>C		3_prime_UTR_variant	Exon 28 of 28	ENST00000453321.8	NP_714915.3	Q5HYA8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TMEM67	ENST00000453321.8 link	c.*19T>C		3_prime_UTR_variant	Exon 28 of 28	1	NM_153704.6	ENSP00000389998.3		Q5HYA8

Frequencies

GnomAD3 genomes

AF:

0.0161

AC:

2450

AN:

152122

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0537

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0116

Gnomad ASJ

AF:

0.00115

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000414

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00316

Gnomad NFE

AF:

0.000132

Gnomad OTH

AF:

0.0167

GnomAD3 exomes

AF:

0.00418

AC:

1029

AN:

246124

Hom.:

AF XY:

0.00337

AC XY:

449

AN XY:

133350

show subpopulations

Gnomad AFR exome

AF:

0.0563

Gnomad AMR exome

AF:

0.00355

Gnomad ASJ exome

AF:

0.000505

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000681

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000125

Gnomad OTH exome

AF:

0.00251

GnomAD4 exome

AF:

0.00167

AC:

2148

AN:

1290004

Hom.:

Cov.:

AF XY:

0.00143

AC XY:

931

AN XY:

650488

show subpopulations

Gnomad4 AFR exome

AF:

0.0549

Gnomad4 AMR exome

AF:

0.00421

Gnomad4 ASJ exome

AF:

0.000724

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.000124

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000532

Gnomad4 OTH exome

AF:

0.00428

GnomAD4 genome

AF:

0.0162

AC:

2465

AN:

152240

Hom.:

Cov.:

AF XY:

0.0158

AC XY:

1176

AN XY:

74446

show subpopulations

Gnomad4 AFR

AF:

0.0539

Gnomad4 AMR

AF:

0.0115

Gnomad4 ASJ

AF:

0.00115

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000132

Gnomad4 OTH

AF:

0.0165

Alfa

AF:

0.00638

Hom.:

Bravo

AF:

0.0189

Asia WGS

AF:

0.00377

AC:

AN:

3462

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Mar 03, 2015

GeneDx

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Meckel syndrome, type 3

Benign:1

Apr 27, 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). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nephronophthisis 11

Benign:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: 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). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Joubert syndrome 6

Benign:1

Apr 27, 2017

Illumina Laboratory Services, Illumina

Significance: 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). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.84

CADD

Benign

8.2

DANN

Benign

0.78

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

Details are displayed if max score is > 0.2

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