rs3759753

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_020806.5(GPHN):​c.65-9T>C variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.188 in 1,511,636 control chromosomes in the GnomAD database, including 41,835 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.33 ( 11976 hom., cov: 32)
Exomes 𝑓: 0.17 ( 29859 hom. )

Consequence

GPHN
NM_020806.5 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00009337
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -0.180
Variant links:
Genes affected
GPHN (HGNC:15465): (gephyrin) This gene encodes a neuronal assembly protein that anchors inhibitory neurotransmitter receptors to the postsynaptic cytoskeleton via high affinity binding to a receptor subunit domain and tubulin dimers. In nonneuronal tissues, the encoded protein is also required for molybdenum cofactor biosynthesis. Mutations in this gene may be associated with the neurological condition hyperplexia and also lead to molybdenum cofactor deficiency. Numerous alternatively spliced transcript variants encoding different isoforms have been described; however, the full-length nature of all transcript variants is not currently known. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.9).
BP6
Variant 14-66681098-T-C is Benign according to our data. Variant chr14-66681098-T-C is described in ClinVar as [Benign]. Clinvar id is 261355.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.648 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GPHNNM_020806.5 linkuse as main transcriptc.65-9T>C splice_polypyrimidine_tract_variant, intron_variant ENST00000478722.6 NP_065857.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
GPHNENST00000478722.6 linkuse as main transcriptc.65-9T>C splice_polypyrimidine_tract_variant, intron_variant 1 NM_020806.5 ENSP00000417901 Q9NQX3-2

Frequencies

GnomAD3 genomes
AF:
0.327
AC:
49694
AN:
151820
Hom.:
11937
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.654
Gnomad AMI
AF:
0.248
Gnomad AMR
AF:
0.386
Gnomad ASJ
AF:
0.230
Gnomad EAS
AF:
0.468
Gnomad SAS
AF:
0.326
Gnomad FIN
AF:
0.154
Gnomad MID
AF:
0.237
Gnomad NFE
AF:
0.139
Gnomad OTH
AF:
0.315
GnomAD3 exomes
AF:
0.266
AC:
66311
AN:
249382
Hom.:
12298
AF XY:
0.251
AC XY:
33872
AN XY:
134976
show subpopulations
Gnomad AFR exome
AF:
0.666
Gnomad AMR exome
AF:
0.429
Gnomad ASJ exome
AF:
0.237
Gnomad EAS exome
AF:
0.464
Gnomad SAS exome
AF:
0.311
Gnomad FIN exome
AF:
0.150
Gnomad NFE exome
AF:
0.141
Gnomad OTH exome
AF:
0.231
GnomAD4 exome
AF:
0.173
AC:
234606
AN:
1359698
Hom.:
29859
Cov.:
24
AF XY:
0.175
AC XY:
119238
AN XY:
682310
show subpopulations
Gnomad4 AFR exome
AF:
0.660
Gnomad4 AMR exome
AF:
0.421
Gnomad4 ASJ exome
AF:
0.236
Gnomad4 EAS exome
AF:
0.441
Gnomad4 SAS exome
AF:
0.302
Gnomad4 FIN exome
AF:
0.149
Gnomad4 NFE exome
AF:
0.124
Gnomad4 OTH exome
AF:
0.214
GnomAD4 genome
AF:
0.328
AC:
49798
AN:
151938
Hom.:
11976
Cov.:
32
AF XY:
0.331
AC XY:
24592
AN XY:
74314
show subpopulations
Gnomad4 AFR
AF:
0.655
Gnomad4 AMR
AF:
0.386
Gnomad4 ASJ
AF:
0.230
Gnomad4 EAS
AF:
0.468
Gnomad4 SAS
AF:
0.326
Gnomad4 FIN
AF:
0.154
Gnomad4 NFE
AF:
0.139
Gnomad4 OTH
AF:
0.318
Alfa
AF:
0.188
Hom.:
4309
Bravo
AF:
0.361
Asia WGS
AF:
0.401
AC:
1391
AN:
3470
EpiCase
AF:
0.155
EpiControl
AF:
0.156

ClinVar

Significance: Benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxDec 08, 2019- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Sulfite oxidase deficiency due to molybdenum cofactor deficiency type C Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 01, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.90
CADD
Benign
1.6
DANN
Benign
0.41

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000093
dbscSNV1_RF
Benign
0.024
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: rs3759753; hg19: chr14-67147816; COSMIC: COSV59475721; API