rs201036290

Variant summary

Our verdict is Benign. Variant got -14 ACMG points: 2P and 16B. PM2BP4_StrongBP6_Very_StrongBS1

The NM_001077418.3(TMEM231):​c.470C>T​(p.Ala157Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000412 in 1,588,882 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A157P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0016 ( 0 hom., cov: 21)
Exomes 𝑓: 0.00029 ( 1 hom. )

Consequence

TMEM231
NM_001077418.3 missense

Scores

2
11
5

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 7.64
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 Benign. Variant got -14 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.014824361).
BP6
Variant 16-75545464-G-A is Benign according to our data. Variant chr16-75545464-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 540545.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00164 (239/145540) while in subpopulation AFR AF= 0.0057 (222/38974). AF 95% confidence interval is 0.00508. There are 0 homozygotes in gnomad4. There are 105 alleles in male gnomad4 subpopulation. Median coverage is 21. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM231NM_001077418.3 linkuse as main transcriptc.470C>T p.Ala157Val missense_variant 4/7 ENST00000258173.11
TMEM231NM_001077416.2 linkuse as main transcriptc.629C>T p.Ala210Val missense_variant 3/6
TMEM231NR_074083.2 linkuse as main transcriptn.636C>T non_coding_transcript_exon_variant 4/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM231ENST00000258173.11 linkuse as main transcriptc.470C>T p.Ala157Val missense_variant 4/71 NM_001077418.3 P1Q9H6L2-1

Frequencies

GnomAD3 genomes
AF:
0.00165
AC:
240
AN:
145426
Hom.:
0
Cov.:
21
show subpopulations
Gnomad AFR
AF:
0.00574
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000491
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000120
Gnomad OTH
AF:
0.00103
GnomAD3 exomes
AF:
0.000558
AC:
136
AN:
243772
Hom.:
0
AF XY:
0.000468
AC XY:
62
AN XY:
132506
show subpopulations
Gnomad AFR exome
AF:
0.00665
Gnomad AMR exome
AF:
0.000480
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000332
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000118
Gnomad OTH exome
AF:
0.000682
GnomAD4 exome
AF:
0.000288
AC:
415
AN:
1443342
Hom.:
1
Cov.:
27
AF XY:
0.000269
AC XY:
193
AN XY:
716634
show subpopulations
Gnomad4 AFR exome
AF:
0.00743
Gnomad4 AMR exome
AF:
0.000530
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000468
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000902
Gnomad4 OTH exome
AF:
0.000655
GnomAD4 genome
AF:
0.00164
AC:
239
AN:
145540
Hom.:
0
Cov.:
21
AF XY:
0.00149
AC XY:
105
AN XY:
70562
show subpopulations
Gnomad4 AFR
AF:
0.00570
Gnomad4 AMR
AF:
0.000491
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000120
Gnomad4 OTH
AF:
0.00102
Alfa
AF:
0.000761
Hom.:
0
Bravo
AF:
0.00222
ESP6500AA
AF:
0.00520
AC:
19
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000663
AC:
80
EpiCase
AF:
0.0000546
EpiControl
AF:
0.000119

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Joubert syndrome 20;C3809352:Meckel syndrome, type 11 Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 22, 2024- -
not provided Benign:1
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Benign
-0.15
T
BayesDel_noAF
Uncertain
0.020
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.40
T;.
Eigen
Uncertain
0.62
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.87
D;D
MetaRNN
Benign
0.015
T;T
MetaSVM
Uncertain
-0.25
T
MutationAssessor
Uncertain
2.6
M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.64
T
PROVEAN
Uncertain
-3.1
D;.
REVEL
Uncertain
0.44
Sift
Uncertain
0.0030
D;.
Sift4G
Uncertain
0.054
T;T
Polyphen
1.0
D;.
Vest4
0.63
MVP
0.42
MPC
3.2
ClinPred
0.013
T
GERP RS
4.2
Varity_R
0.34
gMVP
0.47

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs201036290; hg19: chr16-75579362; API