rs151322023

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_020806.5(GPHN):ā€‹c.633A>Gā€‹(p.Gln211=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000245 in 1,613,606 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (ā˜…ā˜…).

Frequency

Genomes: š‘“ 0.00026 ( 0 hom., cov: 32)
Exomes š‘“: 0.00024 ( 3 hom. )

Consequence

GPHN
NM_020806.5 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.00600
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 -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.56).
BP6
Variant 14-66922842-A-G is Benign according to our data. Variant chr14-66922842-A-G is described in ClinVar as [Likely_benign]. Clinvar id is 466211.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr14-66922842-A-G is described in Lovd as [Likely_benign].
BP7
Synonymous conserved (PhyloP=0.006 with no splicing effect.
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.000244 (357/1461428) while in subpopulation SAS AF= 0.0011 (95/86244). AF 95% confidence interval is 0.000922. There are 3 homozygotes in gnomad4_exome. There are 203 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome4 at 3 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GPHNNM_020806.5 linkuse as main transcriptc.633A>G p.Gln211= synonymous_variant 7/23 ENST00000478722.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GPHNENST00000478722.6 linkuse as main transcriptc.633A>G p.Gln211= synonymous_variant 7/231 NM_020806.5 Q9NQX3-2

Frequencies

GnomAD3 genomes
AF:
0.000256
AC:
39
AN:
152060
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00317
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00125
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000279
Gnomad OTH
AF:
0.000958
GnomAD3 exomes
AF:
0.000335
AC:
84
AN:
250990
Hom.:
0
AF XY:
0.000391
AC XY:
53
AN XY:
135638
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00239
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000947
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.000238
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000244
AC:
357
AN:
1461428
Hom.:
3
Cov.:
32
AF XY:
0.000279
AC XY:
203
AN XY:
727034
show subpopulations
Gnomad4 AFR exome
AF:
0.0000598
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00199
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00110
Gnomad4 FIN exome
AF:
0.0000375
Gnomad4 NFE exome
AF:
0.000159
Gnomad4 OTH exome
AF:
0.000364
GnomAD4 genome
AF:
0.000256
AC:
39
AN:
152178
Hom.:
0
Cov.:
32
AF XY:
0.000323
AC XY:
24
AN XY:
74398
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00317
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00125
Gnomad4 FIN
AF:
0.0000942
Gnomad4 NFE
AF:
0.000279
Gnomad4 OTH
AF:
0.000948
Alfa
AF:
0.000532
Hom.:
0
Bravo
AF:
0.000162
EpiCase
AF:
0.000654
EpiControl
AF:
0.000533

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2024GPHN: BP4, BP7 -
Sulfite oxidase deficiency due to molybdenum cofactor deficiency type C Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeJan 18, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.56
CADD
Benign
2.6
DANN
Benign
0.42
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs151322023; hg19: chr14-67389559; API