Genetic Variant NM_153704.6:c.186T>C (chr8-93755100-T-C) – ACMG Classification: Likely_benign (-5 pts)

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 1P and 6B. PP3BP6BP7BS2

The NM_153704.6(TMEM67):c.186T>C(p.Cys62Cys) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00183 in 1,614,202 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0014 ( 1 hom., cov: 32)

Exomes 𝑓: 0.0019 ( 3 hom. )

Consequence

TMEM67
NM_153704.6 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:6

Conservation

PhyloP100: -0.0110

Publications

2 publications found

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 Gene-Disease associations (from GenCC):

ciliopathy
Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, ClinGen
COACH syndrome 1
Inheritance: AR Classification: DEFINITIVE Submitted by: G2P
Meckel syndrome, type 3
Inheritance: AR Classification: DEFINITIVE Submitted by: Ambry Genetics
nephronophthisis 11
Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
COACH syndrome 1
Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
Joubert syndrome 6
Inheritance: AR Classification: STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)
Joubert syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Meckel syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
Senior-Boichis syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

TMEM67 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

PP3

REVEL computational evidence supports a deleterious effect, 0.711

BP6

Variant 8-93755100-T-C is Benign according to our data. Variant chr8-93755100-T-C is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 215970.

BP7

Synonymous conserved (PhyloP=-0.011 with no splicing effect.

BS2

High Homozygotes in GnomAdExome4 at 3 AR gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_153704.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMEM67	NM_153704.6	MANE Select	c.186T>C	p.Cys62Cys	synonymous	Exon 1 of 28	NP_714915.3
TMEM67	NM_001142301.1		c.-99T>C		5_prime_UTR	Exon 2 of 29	NP_001135773.1	Q5HYA8
TMEM67	NR_024522.2		n.207T>C		non_coding_transcript_exon	Exon 1 of 29

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TMEM67	ENST00000453321.8	TSL:1 MANE Select	c.186T>C	p.Cys62Cys	synonymous	Exon 1 of 28	ENSP00000389998.3	Q5HYA8
TMEM67	ENST00000452276.6	TSL:1	c.186T>C	p.Cys62Cys	synonymous	Exon 1 of 27	ENSP00000388671.2	C9JRQ8
TMEM67	ENST00000474944.5	TSL:1	n.206T>C		non_coding_transcript_exon	Exon 1 of 17

Frequencies

GnomAD3 genomes

AF:

0.00141

AC:

215

AN:

152198

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000555

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00242

Gnomad ASJ

AF:

0.00778

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00181

Gnomad OTH

AF:

0.00192

GnomAD2 exomes

AF:

0.00126

AC:

317

AN:

251484

AF XY:

0.00118

show subpopulations

Gnomad AFR exome

AF:

0.000492

Gnomad AMR exome

AF:

0.00237

Gnomad ASJ exome

AF:

0.00645

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00139

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.00187

AC:

2737

AN:

1461886

Hom.:

Cov.:

AF XY:

0.00179

AC XY:

1303

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.000329

AC:

AN:

33480

American (AMR)

AF:

0.00241

AC:

108

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00631

AC:

165

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000348

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00210

AC:

2335

AN:

1112006

Other (OTH)

AF:

0.00185

AC:

112

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

156

312

467

623

779

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

108

216

324

432

540

<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:

0.00140

AC:

214

AN:

152316

Hom.:

Cov.:

AF XY:

0.00134

AC XY:

100

AN XY:

74494

show subpopulations

African (AFR)

AF:

0.000529

AC:

AN:

41556

American (AMR)

AF:

0.00242

AC:

AN:

15306

Ashkenazi Jewish (ASJ)

AF:

0.00778

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5186

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.00181

AC:

123

AN:

68034

Other (OTH)

AF:

0.00190

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.509

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:

0.00150

Hom.:

Bravo

AF:

0.00165

EpiCase

AF:

0.00115

EpiControl

AF:

0.00207

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

not specified (2)

Joubert syndrome 6 (1)

Meckel syndrome, type 3 (1)

Meckel-Gruber syndrome;C5979921:Joubert syndrome (1)

Nephronophthisis 11 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.67

CADD

Benign

9.3

(source)

DANN

Benign

0.65

PhyloP100

-0.011

PromoterAI

0.019

Neutral

(source)

Mutation Taster

=299/1

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