rs387907133

Variant summary

Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_ModeratePP5_Moderate

The NM_016464.5(TMEM138):​c.380C>T​(p.Ala127Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000206 in 1,457,918 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A127S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

TMEM138
NM_016464.5 missense

Scores

7
10
2

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 7.08
Variant links:
Genes affected
TMEM138 (HGNC:26944): (transmembrane protein 138) This gene encodes a multi-pass transmembrane protein. Reduced expression of this gene in mouse fibroblasts causes short cilia and failure of ciliogenesis. Expression of this gene is tightly coordinated with expression of the neighboring gene TMEM216. Mutations in this gene are associated with the autosomal recessive neurodevelopmental disorder Joubert Syndrome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Mar 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 8 ACMG points.

PM1
In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 5 uncertain in NM_016464.5
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.861
PP5
Variant 11-61368600-C-T is Pathogenic according to our data. Variant chr11-61368600-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 31189.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-61368600-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TMEM138NM_016464.5 linkuse as main transcriptc.380C>T p.Ala127Val missense_variant 5/5 ENST00000278826.11

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TMEM138ENST00000278826.11 linkuse as main transcriptc.380C>T p.Ala127Val missense_variant 5/51 NM_016464.5 P1Q9NPI0-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000399
AC:
1
AN:
250830
Hom.:
0
AF XY:
0.00000737
AC XY:
1
AN XY:
135662
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:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1457918
Hom.:
0
Cov.:
29
AF XY:
0.00000413
AC XY:
3
AN XY:
725596
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:
0.00
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
Cov.:
32
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Joubert syndrome 16 Pathogenic:2
Pathogenic, criteria provided, single submitterresearchUW Hindbrain Malformation Research Program, University of WashingtonFeb 23, 2015- -
Pathogenic, no assertion criteria providedliterature onlyOMIMFeb 24, 2012- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Pathogenic
0.41
D
BayesDel_noAF
Pathogenic
0.35
CADD
Uncertain
24
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.82
D;.
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.60
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Uncertain
0.21
D
MetaRNN
Pathogenic
0.86
D;D
MetaSVM
Uncertain
0.77
D
MutationAssessor
Uncertain
2.5
M;.
MutationTaster
Benign
1.0
D;D
PrimateAI
Uncertain
0.60
T
PROVEAN
Uncertain
-3.3
D;D
REVEL
Pathogenic
0.73
Sift
Uncertain
0.0060
D;D
Sift4G
Uncertain
0.013
D;D
Polyphen
1.0
D;.
Vest4
0.86
MutPred
0.44
Loss of methylation at R124 (P = 0.1898);.;
MVP
0.96
MPC
1.2
ClinPred
0.95
D
GERP RS
5.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.61
gMVP
0.78

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: rs387907133; hg19: chr11-61136072; API