12-55697925-C-T

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_002206.3(ITGA7):c.1281+13G>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00132 in 1,614,088 control chromosomes in the GnomAD database, including 18 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0065 ( 7 hom., cov: 32)

Exomes 𝑓: 0.00078 ( 11 hom. )

Consequence

ITGA7
NM_002206.3 intron

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -1.54

Variant links:

Genes affected

ITGA7 (HGNC:6143): (integrin subunit alpha 7) The protein encoded by this gene belongs to the integrin alpha chain family. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. They mediate a wide spectrum of cell-cell and cell-matrix interactions, and thus play a role in cell migration, morphologic development, differentiation, and metastasis. This protein functions as a receptor for the basement membrane protein laminin-1. It is mainly expressed in skeletal and cardiac muscles and may be involved in differentiation and migration processes during myogenesis. Defects in this gene are associated with congenital myopathy. Alternatively spliced transcript variants encoding different isoforms have been noted for this gene. [provided by RefSeq, Feb 2009]

ITGA7 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 12-55697925-C-T is Benign according to our data. Variant chr12-55697925-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 258580.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-55697925-C-T is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00645 (982/152236) while in subpopulation AFR AF= 0.0215 (895/41532). AF 95% confidence interval is 0.0204. There are 7 homozygotes in gnomad4. There are 474 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 7 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITGA7	NM_002206.3 link	c.1281+13G>A		intron_variant	Intron 8 of 24	ENST00000257879.11	NP_002197.2	Q13683-7Q4LE35

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ITGA7	ENST00000257879.11 link	c.1281+13G>A		intron_variant	Intron 8 of 24	1	NM_002206.3	ENSP00000257879.7		Q13683-7

Frequencies

GnomAD3 genomes

AF:

0.00644

AC:

979

AN:

152118

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0215

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00288

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000578

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000397

Gnomad OTH

AF:

0.00479

GnomAD3 exomes

AF:

0.00163

AC:

409

AN:

251482

Hom.:

AF XY:

0.00133

AC XY:

181

AN XY:

135916

show subpopulations

Gnomad AFR exome

AF:

0.0191

Gnomad AMR exome

AF:

0.000896

Gnomad ASJ exome

AF:

0.0000992

Gnomad EAS exome

AF:

0.000272

Gnomad SAS exome

AF:

0.000849

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.000237

Gnomad OTH exome

AF:

0.00114

GnomAD4 exome

AF:

0.000785

AC:

1147

AN:

1461852

Hom.:

Cov.:

AF XY:

0.000699

AC XY:

508

AN XY:

727228

show subpopulations

Gnomad4 AFR exome

AF:

0.0208

Gnomad4 AMR exome

AF:

0.00116

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.000151

Gnomad4 SAS exome

AF:

0.000893

Gnomad4 FIN exome

AF:

0.0000936

Gnomad4 NFE exome

AF:

0.000178

Gnomad4 OTH exome

AF:

0.00180

GnomAD4 genome

AF:

0.00645

AC:

982

AN:

152236

Hom.:

Cov.:

AF XY:

0.00637

AC XY:

474

AN XY:

74424

show subpopulations

Gnomad4 AFR

AF:

0.0215

Gnomad4 AMR

AF:

0.00288

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000580

Gnomad4 SAS

AF:

0.000415

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.000397

Gnomad4 OTH

AF:

0.00474

Alfa

AF:

0.000678

Hom.:

Bravo

AF:

0.00757

Asia WGS

AF:

0.00115

AC:

AN:

3478

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 08, 2017

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

May 03, 2017

Center for Pediatric Genomic Medicine, Children's Mercy Hospital and Clinics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Congenital muscular dystrophy due to integrin alpha-7 deficiency

Benign:1

Jan 29, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.20

DANN

Benign

0.45

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over