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GeneBe

rs202215735

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001077418.3(TMEM231):c.91G>C(p.Ala31Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000572 in 1,573,424 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A31T) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

TMEM231
NM_001077418.3 missense

Scores

5
12

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -0.00500
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 Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.332592).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM231NM_001077418.3 linkuse as main transcriptc.91G>C p.Ala31Pro missense_variant 1/7 ENST00000258173.11
TMEM231NM_001077416.2 linkuse as main transcriptc.153G>C p.Pro51= synonymous_variant 1/6
TMEM231NR_074083.2 linkuse as main transcriptn.134G>C non_coding_transcript_exon_variant 1/7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM231ENST00000258173.11 linkuse as main transcriptc.91G>C p.Ala31Pro missense_variant 1/71 NM_001077418.3 P1Q9H6L2-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152250
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000112
AC:
2
AN:
178310
Hom.:
0
AF XY:
0.0000102
AC XY:
1
AN XY:
98340
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:
0.00
Gnomad NFE exome
AF:
0.0000268
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000563
AC:
8
AN:
1421174
Hom.:
0
Cov.:
30
AF XY:
0.00000711
AC XY:
5
AN XY:
703682
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:
0.00
Gnomad4 NFE exome
AF:
0.00000732
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152250
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74376
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378
ExAC
AF:
0.00000844
AC:
1

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.53
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
-0.010
Cadd
Benign
22
Dann
Uncertain
0.98
DEOGEN2
Benign
0.23
T;T
Eigen
Benign
-0.10
Eigen_PC
Benign
-0.073
FATHMM_MKL
Benign
0.21
N
LIST_S2
Uncertain
0.89
D;D
M_CAP
Benign
0.050
D
MetaRNN
Benign
0.33
T;T
MetaSVM
Benign
-0.90
T
MutationTaster
Benign
1.0
D;N;N
PROVEAN
Benign
-1.9
N;N
REVEL
Benign
0.089
Sift
Benign
0.091
T;T
Sift4G
Benign
0.16
T;T
Polyphen
0.52
P;.
Vest4
0.38
MutPred
0.65
Loss of helix (P = 0.0237);Loss of helix (P = 0.0237);
MVP
0.36
ClinPred
0.61
D
GERP RS
0.53
Varity_R
0.38
gMVP
0.80

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

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs202215735; hg19: chr16-75590017; API