rs772948173

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PVS1_Supporting

The NM_153704.6(TMEM67):​c.1A>G​(p.Met1?) variant causes a start lost change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000112 in 1,613,466 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

TMEM67
NM_153704.6 start_lost

Scores

6
4
5
Splicing: ADA: 0.05987
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 2.81

Publications

4 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PVS1
Start lost variant, no pathogenic variants between lost start and next in-frame start position. Next in-frame start position is after 11 codons. Genomic position: 93754945. Lost 0.010 part of the original CDS.

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TMEM67
NM_153704.6
MANE Select
c.1A>Gp.Met1?
start_lost
Exon 1 of 28NP_714915.3
TMEM67
NM_001142301.1
c.-180+6A>G
splice_region intron
N/ANP_001135773.1Q5HYA8
TMEM67
NR_024522.2
n.22A>G
non_coding_transcript_exon
Exon 1 of 29

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TMEM67
ENST00000453321.8
TSL:1 MANE Select
c.1A>Gp.Met1?
start_lost
Exon 1 of 28ENSP00000389998.3Q5HYA8
TMEM67
ENST00000452276.6
TSL:1
c.1A>Gp.Met1?
start_lost
Exon 1 of 27ENSP00000388671.2C9JRQ8
TMEM67
ENST00000474944.5
TSL:1
n.21A>G
non_coding_transcript_exon
Exon 1 of 17

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152128
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251082
AF XY:
0.00000737
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000109
AC:
16
AN:
1461338
Hom.:
0
Cov.:
31
AF XY:
0.0000110
AC XY:
8
AN XY:
726968
show subpopulations
African (AFR)
AF:
0.0000598
AC:
2
AN:
33466
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26134
East Asian (EAS)
AF:
0.000252
AC:
10
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86228
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53394
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5420
European-Non Finnish (NFE)
AF:
0.00000180
AC:
2
AN:
1111916
Other (OTH)
AF:
0.0000331
AC:
2
AN:
60356
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.516
Heterozygous variant carriers
0
2
3
5
6
8
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000131
AC:
2
AN:
152128
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74318
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000241
AC:
1
AN:
41430
American (AMR)
AF:
0.00
AC:
0
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10606
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.375
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000329
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.00000824
AC:
1

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Meckel syndrome, type 3;C1853153:Joubert syndrome 6;C1865794:RHYNS syndrome;C2673874:Bardet-Biedl syndrome 14;C3150796:Nephronophthisis 11;C5435651:COACH syndrome 1 (1)
-
1
-
Meckel-Gruber syndrome;C0431399:Joubert syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Pathogenic
0.26
D
BayesDel_noAF
Pathogenic
0.30
CADD
Benign
21
DANN
Uncertain
0.99
DEOGEN2
Benign
0.069
T
Eigen
Benign
-0.24
Eigen_PC
Benign
-0.16
FATHMM_MKL
Benign
0.51
D
LIST_S2
Uncertain
0.90
D
M_CAP
Pathogenic
0.95
D
MetaRNN
Pathogenic
0.79
D
MetaSVM
Uncertain
0.44
D
PhyloP100
2.8
PROVEAN
Benign
-0.76
N
REVEL
Uncertain
0.61
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
0.0030
B
Vest4
0.72
MVP
0.97
ClinPred
0.99
D
GERP RS
3.8
PromoterAI
0.36
Neutral
Varity_R
0.94
gMVP
0.74
Mutation Taster
=95/105
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.060
dbscSNV1_RF
Benign
0.24
SpliceAI score (max)
0.17
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs772948173; hg19: chr8-94767143; API