chr7-100681779-C-A

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_001375765.1(GIGYF1):​c.3056-8G>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00163 in 1,589,766 control chromosomes in the GnomAD database, including 38 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.0083 ( 16 hom., cov: 33)
Exomes 𝑓: 0.00092 ( 22 hom. )

Consequence

GIGYF1
NM_001375765.1 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0002998
2

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.328
Variant links:
Genes affected
GIGYF1 (HGNC:9126): (GRB10 interacting GYF protein 1) This gene encodes a member of the gyf family of adaptor proteins. The encoded protein contains a gyf protein interaction domain. It binds growth factor receptor bound 10, another adaptor protein that binds activated insulin-like growth factor 1 and insulin receptors and regulates receptor signaling. [provided by RefSeq, Apr 2017]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.46).
BP6
Variant 7-100681779-C-A is Benign according to our data. Variant chr7-100681779-C-A is described in ClinVar as [Benign]. Clinvar id is 3040354.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00832 (1268/152316) while in subpopulation AFR AF= 0.0294 (1224/41562). AF 95% confidence interval is 0.0281. There are 16 homozygotes in gnomad4. There are 568 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 16 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
GIGYF1NM_001375765.1 linkuse as main transcriptc.3056-8G>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000678049.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
GIGYF1ENST00000678049.1 linkuse as main transcriptc.3056-8G>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant NM_001375765.1 P1
GIGYF1ENST00000275732.5 linkuse as main transcriptc.3056-8G>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 P1
GIGYF1ENST00000646601.1 linkuse as main transcriptc.3056-8G>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant P1

Frequencies

GnomAD3 genomes
AF:
0.00832
AC:
1267
AN:
152198
Hom.:
16
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0295
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00209
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:
0.000103
Gnomad OTH
AF:
0.00239
GnomAD3 exomes
AF:
0.00243
AC:
562
AN:
231172
Hom.:
6
AF XY:
0.00183
AC XY:
228
AN XY:
124464
show subpopulations
Gnomad AFR exome
AF:
0.0320
Gnomad AMR exome
AF:
0.000966
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000671
Gnomad OTH exome
AF:
0.00197
GnomAD4 exome
AF:
0.000918
AC:
1320
AN:
1437450
Hom.:
22
Cov.:
32
AF XY:
0.000824
AC XY:
587
AN XY:
712384
show subpopulations
Gnomad4 AFR exome
AF:
0.0326
Gnomad4 AMR exome
AF:
0.00144
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000484
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000146
Gnomad4 OTH exome
AF:
0.00263
GnomAD4 genome
AF:
0.00832
AC:
1268
AN:
152316
Hom.:
16
Cov.:
33
AF XY:
0.00763
AC XY:
568
AN XY:
74478
show subpopulations
Gnomad4 AFR
AF:
0.0295
Gnomad4 AMR
AF:
0.00209
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00237
Alfa
AF:
0.00424
Hom.:
1
Bravo
AF:
0.00977
Asia WGS
AF:
0.00202
AC:
7
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

GIGYF1-related disorder Benign:1
Benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 29, 2022This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.46
CADD
Benign
13
DANN
Benign
0.87

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00030
dbscSNV1_RF
Benign
0.0080
SpliceAI score (max)
0.070
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: rs116169359; hg19: chr7-100279402; COSMIC: COSV51948013; COSMIC: COSV51948013; API