12-55697019-C-A

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_002206.3(ITGA7):​c.1617G>T​(p.Gln539His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00295 in 1,614,096 control chromosomes in the GnomAD database, including 125 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.016 ( 60 hom., cov: 32)
Exomes 𝑓: 0.0016 ( 65 hom. )

Consequence

ITGA7
NM_002206.3 missense

Scores

3
15

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 0.321

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • congenital muscular dystrophy due to integrin alpha-7 deficiency
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
  • congenital fiber-type disproportion myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0031561255).
BP6
Variant 12-55697019-C-A is Benign according to our data. Variant chr12-55697019-C-A is described in ClinVar as Benign. ClinVar VariationId is 129292.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0547 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITGA7NM_002206.3 linkc.1617G>T p.Gln539His missense_variant Exon 12 of 25 ENST00000257879.11 NP_002197.2 Q13683-7Q4LE35

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITGA7ENST00000257879.11 linkc.1617G>T p.Gln539His missense_variant Exon 12 of 25 1 NM_002206.3 ENSP00000257879.7 Q13683-7

Frequencies

GnomAD3 genomes
AF:
0.0161
AC:
2447
AN:
152200
Hom.:
60
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0567
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00504
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000735
Gnomad OTH
AF:
0.00765
GnomAD2 exomes
AF:
0.00412
AC:
1034
AN:
251208
AF XY:
0.00295
show subpopulations
Gnomad AFR exome
AF:
0.0587
Gnomad AMR exome
AF:
0.00182
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000528
Gnomad OTH exome
AF:
0.00131
GnomAD4 exome
AF:
0.00158
AC:
2316
AN:
1461778
Hom.:
65
Cov.:
33
AF XY:
0.00134
AC XY:
971
AN XY:
727182
show subpopulations
African (AFR)
AF:
0.0598
AC:
2002
AN:
33478
American (AMR)
AF:
0.00190
AC:
85
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39698
South Asian (SAS)
AF:
0.000116
AC:
10
AN:
86248
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.000525
AC:
3
AN:
5714
European-Non Finnish (NFE)
AF:
0.0000198
AC:
22
AN:
1111996
Other (OTH)
AF:
0.00320
AC:
193
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
144
287
431
574
718
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
66
132
198
264
330
<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:
0.0161
AC:
2451
AN:
152318
Hom.:
60
Cov.:
32
AF XY:
0.0157
AC XY:
1169
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.0566
AC:
2352
AN:
41560
American (AMR)
AF:
0.00503
AC:
77
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4822
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000735
AC:
5
AN:
68026
Other (OTH)
AF:
0.00757
AC:
16
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
120
240
360
480
600
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
26
52
78
104
130
<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:
0.00541
Hom.:
63
Bravo
AF:
0.0185
ESP6500AA
AF:
0.0561
AC:
247
ESP6500EA
AF:
0.000116
AC:
1
ExAC
AF:
0.00528
AC:
641
Asia WGS
AF:
0.00115
AC:
4
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
-
Genetic Services Laboratory, University of Chicago
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

May 24, 2016
GeneDx
Significance: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. -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Congenital muscular dystrophy due to integrin alpha-7 deficiency Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.25
BayesDel_addAF
Benign
-0.53
T
BayesDel_noAF
Benign
-0.49
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.016
.;.;T;.;T
Eigen
Benign
0.12
Eigen_PC
Benign
0.17
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Benign
0.74
T;T;T;T;T
MetaRNN
Benign
0.0032
T;T;T;T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Uncertain
2.5
.;.;.;.;M
PhyloP100
0.32
PrimateAI
Benign
0.43
T
PROVEAN
Benign
-2.2
N;N;N;N;N
REVEL
Benign
0.083
Sift
Benign
0.17
T;T;T;T;T
Sift4G
Benign
0.12
T;T;T;T;T
Polyphen
0.35
B;.;.;B;B
Vest4
0.29
MutPred
0.50
.;.;.;.;Gain of methylation at R586 (P = 0.0442);
MVP
0.51
MPC
0.19
ClinPred
0.018
T
GERP RS
3.5
Varity_R
0.16
gMVP
0.62
Mutation Taster
=99/1
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs61733963; hg19: chr12-56090803; API