rs199759192

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_ModerateBP6_Moderate

The NM_020806.5(GPHN):​c.144-10C>T 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 0.000118 in 1,496,866 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 Likely benign (★).

Frequency

Genomes: 𝑓 0.000073 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

GPHN
NM_020806.5 splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0006119
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 2.30
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 Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.29).
BP6
Variant 14-66776454-C-T is Benign according to our data. Variant chr14-66776454-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 534552.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
GPHNNM_020806.5 linkuse as main transcriptc.144-10C>T 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.144-10C>T splice_polypyrimidine_tract_variant, intron_variant 1 NM_020806.5 ENSP00000417901 Q9NQX3-2

Frequencies

GnomAD3 genomes
AF:
0.0000734
AC:
11
AN:
149858
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000246
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000672
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000133
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000557
AC:
14
AN:
251160
Hom.:
0
AF XY:
0.0000663
AC XY:
9
AN XY:
135750
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:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000122
AC:
165
AN:
1347008
Hom.:
0
Cov.:
23
AF XY:
0.000120
AC XY:
81
AN XY:
677210
show subpopulations
Gnomad4 AFR exome
AF:
0.0000320
Gnomad4 AMR 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:
0.000157
Gnomad4 OTH exome
AF:
0.0000887
GnomAD4 genome
AF:
0.0000734
AC:
11
AN:
149858
Hom.:
0
Cov.:
31
AF XY:
0.0000960
AC XY:
7
AN XY:
72888
show subpopulations
Gnomad4 AFR
AF:
0.0000246
Gnomad4 AMR
AF:
0.0000672
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000133
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000183
Hom.:
0

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Sulfite oxidase deficiency due to molybdenum cofactor deficiency type C Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 18, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.29
CADD
Benign
20
DANN
Benign
0.60

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00061
dbscSNV1_RF
Benign
0.17
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: rs199759192; hg19: chr14-67243172; API