Genetic Variant TMEM107:c.*738C>T (chr17-8173465-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_183065.4(TMEM107):c.*738C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000199 in 764,316 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00020 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

TMEM107
NM_183065.4 3_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.65

Variant links:

Genes affected

TMEM107 (HGNC:28128): (transmembrane protein 107) This gene encodes a transmembrane protein and component of the primary cilia transition zone. The encoded protein regulates ciliogenesis and ciliary protein composition. Human fibroblasts expressing a mutant allele of this gene exhibit reduced numbers of cilia, altered cilia length, and impaired sonic hedgehog signaling. In human patients, different mutations in this gene cause different ciliopathies, including Meckel-Gruber syndrome and orofaciodigital syndrome. [provided by RefSeq, May 2017]

TMEM107 links:

SNORD118 (HGNC:32952): (small nucleolar RNA, C/D box 118)

SNORD118 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.38).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TMEM107	NM_183065.4 link	c.*738C>T		3_prime_UTR_variant	Exon 5 of 5	ENST00000437139.7	NP_898888.1	Q6UX40-1

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
TMEM107	ENST00000437139 link	c.*738C>T	3_prime_UTR_variant	Exon 5 of 5	1	NM_183065.4	ENSP00000402732.2	Q6UX40-1
TMEM107	ENST00000449985 link	c.*787C>T	3_prime_UTR_variant	Exon 2 of 2	1		ENSP00000404753.2	B2RDT5
SNORD118	ENST00000363593.1 link	n.123C>T	non_coding_transcript_exon_variant	Exon 1 of 1	6

Frequencies

GnomAD3 genomes

AF:

0.000204

AC:

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000577

Gnomad SAS

AF:

0.000828

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000221

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000173

AC:

AN:

231802

Hom.:

AF XY:

0.000188

AC XY:

AN XY:

127908

show subpopulations

Gnomad AFR exome

AF:

0.000215

Gnomad AMR exome

AF:

0.0000292

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000398

Gnomad SAS exome

AF:

0.000231

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000194

Gnomad OTH exome

AF:

0.000170

GnomAD4 exome

AF:

0.000199

AC:

122

AN:

612014

Hom.:

Cov.:

AF XY:

0.000239

AC XY:

AN XY:

334578

show subpopulations

Gnomad4 AFR exome

AF:

0.000170

Gnomad4 AMR exome

AF:

0.0000916

Gnomad4 ASJ exome

AF:

0.0000477

Gnomad4 EAS exome

AF:

0.000361

Gnomad4 SAS exome

AF:

0.000330

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000194

Gnomad4 OTH exome

AF:

0.000273

GnomAD4 genome

AF:

0.000197

AC:

AN:

152302

Hom.:

Cov.:

AF XY:

0.000161

AC XY:

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.000217

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000578

Gnomad4 SAS

AF:

0.000621

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000221

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000427

Hom.:

Bravo

AF:

0.000230

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jul 09, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant occurs in the SNORD118 gene, which encodes an RNA molecule that does not result in a protein product. This variant is present in population databases (rs181915503, gnomAD 0.04%), including at least one homozygous and/or hemizygous individual. This variant has not been reported in the literature in individuals affected with SNORD118-related conditions. ClinVar contains an entry for this variant (Variation ID: 1467109). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.38

CADD

Benign

DANN

Benign

0.66

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

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