rs886039807

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_001077418.3(TMEM231):​c.665-11T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000014 in 1,425,290 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

TMEM231
NM_001077418.3 intron

Scores

2
Splicing: ADA: 0.09134
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2B:1

Conservation

PhyloP100: 0.161
Variant links:
Genes affected
TMEM231 (HGNC:37234): (transmembrane protein 231) This gene encodes a transmembrane protein, which is a component of the B9 complex involved in the formation of the diffusion barrier between the cilia and plasma membrane. Mutations in this gene cause Joubert syndrome (JBTS). Multiple alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Jan 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.76).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
TMEM231NM_001077418.3 linkc.665-11T>C intron_variant ENST00000258173.11 NP_001070886.1 Q9H6L2-1
TMEM231NM_001077416.2 linkc.824-11T>C intron_variant NP_001070884.2 Q9H6L2
TMEM231NR_074083.2 linkn.831-11T>C intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
TMEM231ENST00000258173.11 linkc.665-11T>C intron_variant 1 NM_001077418.3 ENSP00000258173.5 Q9H6L2-1
TMEM231ENST00000568377.5 linkc.752-11T>C intron_variant 1 ENSP00000476267.1 Q9H6L2-2
TMEM231ENST00000565067.5 linkc.521-11T>C intron_variant 5 ENSP00000457254.1 H3BTN6
ENSG00000260092ENST00000460606.1 linkn.157+1136T>C intron_variant 1 ENSP00000457544.1 H3BUA1
TMEM231ENST00000562410.5 linkn.*467-11T>C intron_variant 1 ENSP00000454582.1 H3BMW7
TMEM231ENST00000570006.5 linkn.*45-11T>C intron_variant 5 ENSP00000455520.1 H3BPY4

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD3 exomes
AF:
0.00000422
AC:
1
AN:
236868
Hom.:
0
AF XY:
0.00000776
AC XY:
1
AN XY:
128818
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000469
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000140
AC:
2
AN:
1425290
Hom.:
0
Cov.:
26
AF XY:
0.00000283
AC XY:
2
AN XY:
706564
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
9.21e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Pathogenic:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Joubert syndrome and related disorders Pathogenic:1
Pathogenic, no assertion criteria providedresearchCenter for Genomic Medicine, King Faisal Specialist Hospital and Research Center-- -
Joubert syndrome 20 Pathogenic:1
Likely pathogenic, criteria provided, single submitterclinical testingCenter for Genomic Medicine, King Faisal Specialist Hospital and Research CenterDec 18, 2024- -
Joubert syndrome 20;C3809352:Meckel syndrome, type 11 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 19, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.76
CADD
Benign
3.0
DANN
Benign
0.73

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.091
dbscSNV1_RF
Benign
0.38
SpliceAI score (max)
0.18
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.

Other links and lift over

dbSNP: rs886039807; hg19: chr16-75575364; API