Genetic Variant ITGA11:p.Arg1054Cys (chr15-68311008-G-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_001004439.2(ITGA11):c.3160C>T(p.Arg1054Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000686 in 1,603,468 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000062 ( 0 hom. )

Consequence

ITGA11
NM_001004439.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55

Variant links:

Genes affected

ITGA11 (HGNC:6136): (integrin subunit alpha 11) This gene encodes an alpha integrin. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. This protein contains an I domain, is expressed in muscle tissue, dimerizes with beta 1 integrin in vitro, and appears to bind collagen in this form. Therefore, the protein may be involved in attaching muscle tissue to the extracellular matrix. Alternative transcriptional splice variants have been found for this gene, but their biological validity is not determined. [provided by RefSeq, Jul 2008]

ITGA11 links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.953

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ITGA11	NM_001004439.2 link	c.3160C>T	p.Arg1054Cys	missense_variant	Exon 26 of 30	ENST00000315757.9	NP_001004439.1	Q9UKX5-1B3KTN6
ITGA11	XM_011521363.3 link	c.2953C>T	p.Arg985Cys	missense_variant	Exon 24 of 28		XP_011519665.1
ITGA11	XM_005254228.4 link	c.2854C>T	p.Arg952Cys	missense_variant	Exon 24 of 28		XP_005254285.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ITGA11	ENST00000315757.9 link	c.3160C>T	p.Arg1054Cys	missense_variant	Exon 26 of 30	1	NM_001004439.2	ENSP00000327290.7		Q9UKX5-1
ITGA11	ENST00000423218.6 link	c.3163C>T	p.Arg1055Cys	missense_variant	Exon 26 of 30	2		ENSP00000403392.2		Q9UKX5-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000862

AC:

AN:

231930

AF XY:

0.0000159

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000192

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000620

AC:

AN:

1451262

Hom.:

Cov.:

AF XY:

0.00000694

AC XY:

AN XY:

720736

show subpopulations

African (AFR)

AF:

0.0000301

AC:

AN:

33242

American (AMR)

AF:

0.00

AC:

AN:

43568

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25810

East Asian (EAS)

AF:

0.0000255

AC:

AN:

39260

South Asian (SAS)

AF:

0.00

AC:

AN:

84082

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52650

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5752

European-Non Finnish (NFE)

AF:

0.00000542

AC:

AN:

1106914

Other (OTH)

AF:

0.0000167

AC:

AN:

59984

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.436

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74350

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41442

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5196

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10626

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68038

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000414

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Aug 28, 2023

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.3160C>T (p.R1054C) alteration is located in exon 26 (coding exon 26) of the ITGA11 gene. This alteration results from a C to T substitution at nucleotide position 3160, causing the arginine (R) at amino acid position 1054 to be replaced by a cysteine (C). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.090

BayesDel_noAF

Benign

-0.37

CADD

Uncertain

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.56

.;D

Eigen

Benign

0.13

Eigen_PC

Benign

0.014

FATHMM_MKL

Uncertain

0.76

LIST_S2

Uncertain

0.95

D;D

M_CAP

Benign

0.032

MetaRNN

Pathogenic

0.95

D;D

MetaSVM

Benign

-0.62

MutationAssessor

Benign

1.6

.;L

PhyloP100

3.6

PrimateAI

Benign

0.25

PROVEAN

Uncertain

-2.7

D;D

REVEL

Benign

0.21

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.048

D;T

Polyphen

1.0

.;D

Vest4

0.58

MutPred

0.80

.;Loss of disorder (P = 0.014);

MVP

0.77

MPC

0.49

ClinPred

0.87

GERP RS

3.8

Varity_R

0.19

gMVP

0.35

Mutation Taster

=90/10

polymorphism

(source)

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

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15-68311008-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over