chr8-93787884-C-T

Position:

• chr8-93787884-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM2 PP3 PP5_Moderate

The ENST00000453321.8(TMEM67):​c.1453C>T​(p.Pro485Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. 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 ENST00000453321.8 missense
• Clinical Significance: Pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 2.76

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 Uncertain_significance. Variant got 5 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.795
• PP5: Variant 8-93787884-C-T is Pathogenic according to our data. Variant chr8-93787884-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 217713.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr8-93787884-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
TMEM67	NM_153704.6	c.1453C>T	p.Pro485Ser	missense_variant	14/28	ENST00000453321.8	NP_714915.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
TMEM67	ENST00000453321.8	c.1453C>T	p.Pro485Ser	missense_variant	14/28	1	NM_153704.6	ENSP00000389998	P1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

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	0.14
BayesDel_addAF	Pathogenic	0.36	D
BayesDel_noAF	Pathogenic	0.29
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.70	D;D;.
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.47
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Benign	0.80	T;T;T
M_CAP	Uncertain	0.23	D
MetaRNN	Pathogenic	0.80	D;D;D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Uncertain	2.7	.;M;.
MutationTaster	Benign	1.0	D;D
PrimateAI	Benign	0.38	T
PROVEAN	Pathogenic	-4.9	D;D;D
REVEL	Pathogenic	0.85
Sift	Benign	0.033	D;D;D
Sift4G	Uncertain	0.036	D;T;T
Polyphen		0.85	.;P;.
Vest4		0.44, 0.46
MutPred		0.49		.;Loss of catalytic residue at P485 (P = 0.1164);.;
MVP		1.0
MPC		0.30
ClinPred		0.99	D
GERP RS		4.7
Varity_R		0.36
gMVP		0.83

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs863225228; hg19: chr8-94800112;