rs779666592

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_002206.3(ITGA7):​c.1267G>A​(p.Ala423Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000186 in 1,614,072 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

ITGA7
NM_002206.3 missense

Scores

18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: -1.87

Publications

0 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 -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.02554956).
BP6
Variant 12-55697952-C-T is Benign according to our data. Variant chr12-55697952-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 538004.

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.1267G>Ap.Ala423Thr
missense
Exon 8 of 25NP_002197.2Q13683-7
ITGA7
NM_001410977.1
c.1399G>Ap.Ala467Thr
missense
Exon 9 of 26NP_001397906.1Q13683-1
ITGA7
NM_001144996.2
c.1279G>Ap.Ala427Thr
missense
Exon 8 of 25NP_001138468.1Q13683-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGA7
ENST00000257879.11
TSL:1 MANE Select
c.1267G>Ap.Ala423Thr
missense
Exon 8 of 25ENSP00000257879.7Q13683-7
ITGA7
ENST00000553804.6
TSL:1
c.1279G>Ap.Ala427Thr
missense
Exon 8 of 25ENSP00000452120.1Q13683-3
ITGA7
ENST00000555728.5
TSL:5
c.1399G>Ap.Ala467Thr
missense
Exon 9 of 26ENSP00000452387.1Q13683-1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152072
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000239
AC:
6
AN:
251480
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000352
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000185
AC:
27
AN:
1461882
Hom.:
0
Cov.:
34
AF XY:
0.0000206
AC XY:
15
AN XY:
727246
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.0000927
AC:
8
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.000867
AC:
5
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1112002
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.477
Heterozygous variant carriers
0
3
6
9
12
15
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152190
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74396
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41514
American (AMR)
AF:
0.00
AC:
0
AN:
15280
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10612
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68004
Other (OTH)
AF:
0.00
AC:
0
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.492
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:
0.0000494
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2
Asia WGS
AF:
0.000577
AC:
2
AN:
3478

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
2
-
Congenital muscular dystrophy due to integrin alpha-7 deficiency (2)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.062
BayesDel_addAF
Benign
-0.45
T
BayesDel_noAF
Benign
-0.71
CADD
Benign
0.0070
DANN
Benign
0.33
DEOGEN2
Benign
0.0021
T
Eigen
Benign
-1.9
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.0073
N
LIST_S2
Benign
0.088
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.026
T
MetaSVM
Benign
-0.88
T
MutationAssessor
Benign
-1.1
N
PhyloP100
-1.9
PrimateAI
Benign
0.25
T
PROVEAN
Benign
2.1
N
REVEL
Benign
0.12
Sift
Benign
1.0
T
Sift4G
Benign
1.0
T
Polyphen
0.0
B
Vest4
0.052
MVP
0.45
MPC
0.16
ClinPred
0.014
T
GERP RS
-9.2
Varity_R
0.021
gMVP
0.24
Mutation Taster
=100/0
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: rs779666592; hg19: chr12-56091736; COSMIC: COSV57701314; COSMIC: COSV57701314; API