rs863225229

Positions:

• chr8-93780608-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Moderate PP5_Moderate

The NM_153704.6(TMEM67):​c.730A>G​(p.Thr244Ala) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: TMEM67 NM_153704.6 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 6.81

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.88
• PP5: Variant 8-93780608-A-G is Pathogenic according to our data. Variant chr8-93780608-A-G is described in ClinVar as [Pathogenic]. Clinvar id is 217716.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr8-93780608-A-G is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM67	NM_153704.6	c.730A>G	p.Thr244Ala	missense_variant	8/28	ENST00000453321.8	NP_714915.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMEM67	ENST00000453321.8	c.730A>G	p.Thr244Ala	missense_variant	8/28	1	NM_153704.6	ENSP00000389998.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Joubert syndrome 6 Pathogenic:1

Pathogenic, criteria provided, single submitter

research

UW Hindbrain Malformation Research Program, University of Washington

Feb 23, 2015

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.24
BayesDel_addAF	Pathogenic	0.47	D
BayesDel_noAF	Pathogenic	0.44
CADD	Uncertain	26
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.69	D;D;.
Eigen	Pathogenic	0.71
Eigen_PC	Pathogenic	0.72
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.79	T;T;T
M_CAP	Pathogenic	0.35	D
MetaRNN	Pathogenic	0.88	D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Uncertain	2.9	.;M;.
PrimateAI	Uncertain	0.58	T
PROVEAN	Uncertain	-3.8	D;D;D
REVEL	Pathogenic	0.88
Sift	Pathogenic	0.0	D;D;D
Sift4G	Pathogenic	0.0	D;D;D
Polyphen		0.98	.;D;.
Vest4		0.80, 0.72
MutPred		0.68		.;Loss of catalytic residue at T244 (P = 0.219);.;
MVP		1.0
MPC		0.38
ClinPred		1.0	D
GERP RS		5.8
Varity_R		0.44
gMVP		0.83

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

LitVar

Other links and lift over

dbSNP: rs863225229; hg19: chr8-94792836;