Genetic Variant GIGYF1:c.2761+6C>T (chr7-100682316-G-A) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001375765.1(GIGYF1):c.2761+6C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000479 in 1,610,928 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0024 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00028 ( 2 hom. )

Consequence

GIGYF1
NM_001375765.1 splice_region, intron

Scores

Splicing: ADA: 0.00003744

Clinical Significance

Likely benign criteria provided, single submitter B:2

Conservation

PhyloP100: -0.950

Publications

1 publications found

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]

GIGYF1 Gene-Disease associations (from GenCC):

complex neurodevelopmental disorder
Inheritance: AD Classification: STRONG Submitted by: Ambry Genetics
neurodevelopmental disorder
Inheritance: AD Classification: MODERATE Submitted by: G2P

GIGYF1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.95).

BP6

Variant 7-100682316-G-A is Benign according to our data. Variant chr7-100682316-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 3035541.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 361 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001375765.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
GIGYF1	NM_001375765.1	MANE Select	c.2761+6C>T	splice_region intron	N/A	NP_001362694.1	O75420
GIGYF1	NM_001375759.1		c.2761+6C>T	splice_region intron	N/A	NP_001362688.1
GIGYF1	NM_001375760.1		c.2761+6C>T	splice_region intron	N/A	NP_001362689.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
GIGYF1	ENST00000678049.1	MANE Select	c.2761+6C>T	splice_region intron	N/A	ENSP00000503354.1	O75420
GIGYF1	ENST00000275732.5	TSL:1	c.2761+6C>T	splice_region intron	N/A	ENSP00000275732.4	O75420
GIGYF1	ENST00000893817.1		c.2794+6C>T	splice_region intron	N/A	ENSP00000563876.1

Frequencies

GnomAD3 genomes

AF:

0.00236

AC:

359

AN:

152188

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00832

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.0000588

Gnomad OTH

AF:

0.00143

GnomAD2 exomes

AF:

0.000748

AC:

182

AN:

243338

AF XY:

0.000607

show subpopulations

Gnomad AFR exome

AF:

0.0107

Gnomad AMR exome

AF:

0.000233

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000548

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000277

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000282

AC:

411

AN:

1458622

Hom.:

Cov.:

AF XY:

0.000240

AC XY:

174

AN XY:

725634

show subpopulations

African (AFR)

AF:

0.0108

AC:

360

AN:

33456

American (AMR)

AF:

0.000291

AC:

AN:

44650

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26054

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39688

South Asian (SAS)

AF:

0.00

AC:

AN:

86208

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51130

Middle Eastern (MID)

AF:

0.000174

AC:

AN:

5756

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1111366

Other (OTH)

AF:

0.000497

AC:

AN:

60314

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.484

Heterozygous variant carriers

111

139

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00237

AC:

361

AN:

152306

Hom.:

Cov.:

AF XY:

0.00254

AC XY:

189

AN XY:

74468

show subpopulations

African (AFR)

AF:

0.00835

AC:

347

AN:

41572

American (AMR)

AF:

0.000457

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000588

AC:

AN:

68008

Other (OTH)

AF:

0.00142

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000281

Hom.:

Bravo

AF:

0.00286

ClinVar

ClinVar submissions as Germline

Significance:Likely benign

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

GIGYF1-related disorder (1)

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.95

CADD

Benign

0.26

(source)

DANN

Benign

0.64

PhyloP100

-0.95

Mutation Taster

=100/0

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000037

dbscSNV1_RF

Benign

0.11

SpliceAI score (max)

0.96

Details are displayed if max score is > 0.2

DS_DG_spliceai

0.96

Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over