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rs727504667

Variant summary

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

The NM_005709.4(USH1C):c.1284+4C>T variant causes a splice donor region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000355 in 1,577,932 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000037 ( 0 hom. )

Consequence

USH1C
NM_005709.4 splice_donor_region, intron

Scores

2
Splicing: ADA: 0.0001652
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: 0.600
Variant links:
Genes affected
USH1C (HGNC:12597): (USH1 protein network component harmonin) This gene encodes a scaffold protein that functions in the assembly of Usher protein complexes. The protein contains PDZ domains, a coiled-coil region with a bipartite nuclear localization signal and a PEST degradation sequence. Defects in this gene are the cause of Usher syndrome type 1C and non-syndromic sensorineural deafness autosomal recessive type 18. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

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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=-0.46).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
USH1CNM_005709.4 linkuse as main transcriptc.1284+4C>T splice_donor_region_variant, intron_variant ENST00000318024.9
USH1CNM_153676.4 linkuse as main transcriptc.1211-1107C>T intron_variant ENST00000005226.12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
USH1CENST00000005226.12 linkuse as main transcriptc.1211-1107C>T intron_variant 5 NM_153676.4 Q9Y6N9-5
USH1CENST00000318024.9 linkuse as main transcriptc.1284+4C>T splice_donor_region_variant, intron_variant 1 NM_005709.4 P1Q9Y6N9-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152184
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000714
AC:
14
AN:
195972
Hom.:
0
AF XY:
0.000124
AC XY:
13
AN XY:
104692
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:
0.000518
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000119
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000372
AC:
53
AN:
1425630
Hom.:
0
Cov.:
32
AF XY:
0.0000553
AC XY:
39
AN XY:
705586
show subpopulations
Gnomad4 AFR exome
AF:
0.0000306
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000529
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000274
Gnomad4 OTH exome
AF:
0.000102
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152302
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000151

ClinVar

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

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineAug 16, 2013Variant classified as Uncertain Significance - Favor Benign. The 1284+4C>T varia nt in USH1C has not been reported in individuals with hearing loss or in large p opulation studies. This variant is located in the 5' splice region. Computationa l tools do not suggest an impact to splicing. However, this information is not p redictive enough to rule out pathogenicity. Although position +4 is part of the splice site region, the reference sequence was already divergent from consensus (normally an A at this position) and therefore this variant is less likely to di srupt splicing. In summary, the clinical significance of this variant cannot be determined with certainty; however based upon the arguments described above, we would lean towards a more likely benign role. -
Usher syndrome type 1C Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Nov 11, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
Cadd
Benign
19
Dann
Benign
0.90

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00017
dbscSNV1_RF
Benign
0.0060
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: rs727504667; hg19: chr11-17538944; API