17-8173586-G-A

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_ModerateBP6BS2_Supporting

The ENST00000363593.2(SNORD118):n.3C>T variant causes a non coding transcript exon change. The variant allele was found at a frequency of 0.00135 in 764,050 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0014 ( 4 hom. )

Consequence

SNORD118
ENST00000363593.2 non_coding_transcript_exon

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:1B:2

Conservation

PhyloP100: 4.07

Publications

4 publications found

Variant links:

Genes affected

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

SNORD118 links:

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 Gene-Disease associations (from GenCC):

Meckel syndrome 13
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
ciliopathy
Inheritance: AR Classification: MODERATE Submitted by: Ambry Genetics
Meckel syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
orofaciodigital syndrome 16
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

TMEM107 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.28).

BP6

Variant 17-8173586-G-A is Benign according to our data. Variant chr17-8173586-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 522851.

BS2

High Homozygotes in GnomAdExome4 at 4 AR geneVariant has number of homozygotes lower than other variant known as pathogenic in the gene, so the strength is limited to Supporting.

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000363593.2. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
SNORD118	NR_033294.2	MANE Select	n.3C>T	non_coding_transcript_exon	Exon 1 of 1
TMEM107	NM_183065.4	MANE Select	c.*617C>T	3_prime_UTR	Exon 5 of 5	NP_898888.1
TMEM107	NR_147092.2		n.868C>T	non_coding_transcript_exon	Exon 2 of 2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
SNORD118	ENST00000363593.2	TSL:6 MANE Select	n.3C>T	non_coding_transcript_exon	Exon 1 of 1
TMEM107	ENST00000437139.7	TSL:1 MANE Select	c.*617C>T	3_prime_UTR	Exon 5 of 5	ENSP00000402732.2
TMEM107	ENST00000449985.6	TSL:1	c.*666C>T	3_prime_UTR	Exon 2 of 2	ENSP00000404753.2

Frequencies

GnomAD3 genomes

AF:

0.00130

AC:

197

AN:

152064

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000821

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00111

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00404

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.00528

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000956

Gnomad OTH

AF:

0.000480

GnomAD2 exomes

AF:

0.00146

AC:

338

AN:

231102

AF XY:

0.00143

show subpopulations

Gnomad AFR exome

AF:

0.000861

Gnomad AMR exome

AF:

0.00121

Gnomad ASJ exome

AF:

0.000509

Gnomad EAS exome

AF:

0.00222

Gnomad FIN exome

AF:

0.00653

Gnomad NFE exome

AF:

0.00110

Gnomad OTH exome

AF:

0.000853

GnomAD4 exome

AF:

0.00137

AC:

837

AN:

611866

Hom.:

Cov.:

AF XY:

0.00136

AC XY:

454

AN XY:

334362

show subpopulations

African (AFR)

AF:

0.000906

AC:

AN:

17662

American (AMR)

AF:

0.00122

AC:

AN:

43564

Ashkenazi Jewish (ASJ)

AF:

0.000286

AC:

AN:

20956

East Asian (EAS)

AF:

0.00233

AC:

AN:

36028

South Asian (SAS)

AF:

0.00144

AC:

100

AN:

69604

European-Finnish (FIN)

AF:

0.00591

AC:

223

AN:

37734

Middle Eastern (MID)

AF:

0.000483

AC:

AN:

4140

European-Non Finnish (NFE)

AF:

0.000905

AC:

316

AN:

349234

Other (OTH)

AF:

0.00112

AC:

AN:

32944

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

124

165

206

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00129

AC:

197

AN:

152184

Hom.:

Cov.:

AF XY:

0.00141

AC XY:

105

AN XY:

74406

show subpopulations

African (AFR)

AF:

0.000818

AC:

AN:

41552

American (AMR)

AF:

0.00111

AC:

AN:

15270

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00405

AC:

AN:

5190

South Asian (SAS)

AF:

0.000622

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00528

AC:

AN:

10600

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000956

AC:

AN:

67968

Other (OTH)

AF:

0.000475

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000610

Hom.:

Bravo

AF:

0.000914

Asia WGS

AF:

0.00202

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:1Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Leukoencephalopathy with calcifications and cysts

Pathogenic:1Uncertain:1

Mar 12, 2018

Undiagnosed Diseases Network, NIH

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Apr 06, 2020

Laboratory of Neurogenetics and Neuroinflammation, Institut Imagine

Significance:Pathogenic

Review Status:no assertion criteria provided

Collection Method:clinical testing

not provided

Benign:2

Aug 13, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

May 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

SNORD118: BS2

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.28

CADD

Benign

(source)

DANN

Benign

0.85

PhyloP100

4.1

Mutation Taster

=32/53

disease causing

(source)

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over