Variant 11-61362256-C-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The ENST00000542946.2(TMEM138):c.-304C>A variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000617 in 152,382 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00062 ( 2 hom., cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

TMEM138
ENST00000542946.2 5_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: -0.00500

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]

TMEM138 links:

CYB561A3 (HGNC:23014): (cytochrome b561 family member A3) Predicted to enable transmembrane ascorbate ferrireductase activity. Predicted to be involved in cellular iron ion homeostasis. Located in nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

CYB561A3 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -9 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.76).

BS1

Variant frequency is greater than expected in population sas. gnomad4 allele frequency = 0.000617 (94/152382) while in subpopulation SAS AF= 0.0193 (93/4828). AF 95% confidence interval is 0.0161. There are 2 homozygotes in gnomad4. There are 75 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	#exon/exons	Protein
CYB561A3	NM_001161454.1 linkuse as main transcript	c.-753G>T	5_prime_UTR_variant	1/8	NP_001154926.1
CYB561A3	XM_011544821.3 linkuse as main transcript	c.-753G>T	5_prime_UTR_variant	1/8	XP_011543123.1
CYB561A3	XM_024448398.2 linkuse as main transcript	c.-753G>T	5_prime_UTR_variant	1/7	XP_024304166.2

Ensembl

Gene	Transcript	HGVSc	Effect	#exon/exons	TSL	Protein	UniProt
TMEM138	ENST00000542946.2 linkuse as main transcript	c.-304C>A	5_prime_UTR_variant	1/3	1	ENSP00000445792	Q9NPI0-2
CYB561A3	ENST00000426130.6 linkuse as main transcript	c.-753G>T	5_prime_UTR_variant	1/8	5	ENSP00000398979	Q8NBI2-2
TMEM138	ENST00000451389.7 linkuse as main transcript	c.-304C>A	5_prime_UTR_variant	1/5	3	ENSP00000508581

Frequencies

GnomAD3 genomes

AF:

0.000624

AC:

AN:

152264

Hom.:

Cov.:

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:

0.0195

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

Gnomad4 AFR 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 genome

AF:

0.000617

AC:

AN:

152382

Hom.:

Cov.:

AF XY:

0.00101

AC XY:

AN XY:

74514

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:

0.0193

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000139

Hom.:

Bravo

AF:

0.0000793

Asia WGS

AF:

0.00982

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

- -

Familial aplasia of the vermis

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jun 14, 2016

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.76

CADD

Benign

6.3

DANN

Benign

0.73

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over