rs201709662

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_002206.3(ITGA7):​c.3323G>A​(p.Arg1108Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000477 in 1,613,738 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1108W) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000052 ( 0 hom. )

Consequence

ITGA7
NM_002206.3 missense

Scores

3
15

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 3.31

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, Orphanet, Labcorp Genetics (formerly Invitae)
  • 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: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.11103955).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002206.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGA7
NM_002206.3
MANE Select
c.3323G>Ap.Arg1108Gln
missense
Exon 25 of 25NP_002197.2Q13683-7
ITGA7
NM_001410977.1
c.3455G>Ap.Arg1152Gln
missense
Exon 26 of 26NP_001397906.1Q13683-1
ITGA7
NM_001144996.2
c.3335G>Ap.Arg1112Gln
missense
Exon 25 of 25NP_001138468.1Q13683-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGA7
ENST00000257879.11
TSL:1 MANE Select
c.3323G>Ap.Arg1108Gln
missense
Exon 25 of 25ENSP00000257879.7Q13683-7
ITGA7
ENST00000553804.6
TSL:1
c.3335G>Ap.Arg1112Gln
missense
Exon 25 of 25ENSP00000452120.1Q13683-3
ITGA7
ENST00000555728.5
TSL:5
c.3455G>Ap.Arg1152Gln
missense
Exon 26 of 26ENSP00000452387.1Q13683-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152214
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000678
AC:
17
AN:
250800
AF XY:
0.0000737
show subpopulations
Gnomad AFR exome
AF:
0.0000617
Gnomad AMR exome
AF:
0.000174
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000793
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.0000520
AC:
76
AN:
1461524
Hom.:
0
Cov.:
31
AF XY:
0.0000564
AC XY:
41
AN XY:
727104
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33480
American (AMR)
AF:
0.000134
AC:
6
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.0000188
AC:
1
AN:
53098
Middle Eastern (MID)
AF:
0.000173
AC:
1
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000558
AC:
62
AN:
1111990
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.487
Heterozygous variant carriers
0
4
9
13
18
22
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<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:
0.00000657
AC:
1
AN:
152214
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74374
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41460
American (AMR)
AF:
0.00
AC:
0
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5202
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68022
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000687
Hom.:
0
Bravo
AF:
0.0000529
ExAC
AF:
0.0000988
AC:
12
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Congenital muscular dystrophy due to integrin alpha-7 deficiency (1)
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.071
BayesDel_addAF
Benign
-0.30
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.0057
T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.074
FATHMM_MKL
Uncertain
0.91
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.016
T
MetaRNN
Benign
0.11
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.92
L
PhyloP100
3.3
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.18
N
REVEL
Benign
0.062
Sift
Benign
0.39
T
Sift4G
Benign
0.34
T
Polyphen
0.074
B
Vest4
0.097
MVP
0.79
MPC
0.20
ClinPred
0.047
T
GERP RS
4.2
Varity_R
0.042
gMVP
0.30
Mutation Taster
=86/14
polymorphism

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

Other links and lift over

dbSNP: rs201709662; hg19: chr12-56078933; API