rs149028067

Positions:

Variant summary

Our verdict is Benign. Variant got -7 ACMG points: 2P and 9B. PM2BP4_StrongBP6BS1

The NM_002206.3(ITGA7):c.1606C>T(p.Leu536Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000143 in 1,614,070 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00075 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000080 ( 0 hom. )

Consequence

ITGA7
NM_002206.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: 1.91

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 -7 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.008356899).

BP6

Variant 12-55697030-G-A is Benign according to our data. Variant chr12-55697030-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 194046.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.000748 (114/152330) while in subpopulation AFR AF= 0.00262 (109/41572). AF 95% confidence interval is 0.00222. There are 0 homozygotes in gnomad4. There are 56 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ITGA7	NM_002206.3 linkuse as main transcript	c.1606C>T	p.Leu536Phe	missense_variant	12/25	ENST00000257879.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ITGA7	ENST00000257879.11 linkuse as main transcript	c.1606C>T	p.Leu536Phe	missense_variant	12/25	1	NM_002206.3	A1	Q13683-7

Frequencies

GnomAD3 genomes

AF:

0.000749

AC:

114

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00263

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000294

Gnomad OTH

AF:

0.00143

GnomAD3 exomes

AF:

0.000187

AC:

AN:

251094

Hom.:

AF XY:

0.000133

AC XY:

AN XY:

135742

show subpopulations

Gnomad AFR exome

AF:

0.00265

Gnomad AMR exome

AF:

0.0000868

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:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000800

AC:

117

AN:

1461740

Hom.:

Cov.:

AF XY:

0.0000646

AC XY:

AN XY:

727158

show subpopulations

Gnomad4 AFR exome

AF:

0.00275

Gnomad4 AMR exome

AF:

0.000224

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:

0.00

Gnomad4 OTH exome

AF:

0.000215

GnomAD4 genome

AF:

0.000748

AC:

114

AN:

152330

Hom.:

Cov.:

AF XY:

0.000752

AC XY:

AN XY:

74476

show subpopulations

Gnomad4 AFR

AF:

0.00262

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00142

Alfa

AF:

0.000122

Hom.:

Bravo

AF:

0.000888

ESP6500AA

AF:

0.00159

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000264

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Aug 26, 2020	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Sep 22, 2014	- -
Likely benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	May 03, 2019	- -

Congenital muscular dystrophy due to integrin alpha-7 deficiency

Uncertain:1Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Jul 20, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Oct 13, 2023	- -

ITGA7-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Jul 30, 2023

This variant is classified as likely 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

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.43

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.015

.;.;T;.;T

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.46

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.87

D;D;D;D;D

M_CAP

Benign

0.041

MetaRNN

Benign

0.0084

T;T;T;T;T

MetaSVM

Benign

-0.80

MutationAssessor

Uncertain

2.5

.;.;.;.;M

MutationTaster

Benign

0.99

D;D;D;D;D;D;D;D

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.8

N;N;N;N;N

REVEL

Benign

0.072

Sift

Benign

0.049

D;D;D;T;T

Sift4G

Uncertain

0.024

D;D;D;D;D

Polyphen

0.98

D;.;.;D;D

Vest4

0.31

MVP

0.46

MPC

0.70

ClinPred

0.065

GERP RS

3.4

Varity_R

0.11

gMVP

0.27

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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