rs121912468

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PS3PP3_ModeratePP5_Very_Strong

The NM_000213.5(ITGB4):c.3674G>A(p.Arg1225His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000496 in 1,613,680 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 Likely pathogenic (★★). ClinVar reports functional evidence for this variant: "SCV006073432: The most pronounced variant effect results in <10% of normal protein expression in a patient skin sample as determined by immunofluorescence (example, Mencia_2016). PMID:26739954".

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

ITGB4
NM_000213.5 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 10.0

Publications

7 publications found

Variant links:

Genes affected

ITGB4 (HGNC:6158): (integrin subunit beta 4) Integrins are heterodimers comprised of alpha and beta subunits, that are noncovalently associated transmembrane glycoprotein receptors. Different combinations of alpha and beta polypeptides form complexes that vary in their ligand-binding specificities. Integrins mediate cell-matrix or cell-cell adhesion, and transduced signals that regulate gene expression and cell growth. This gene encodes the integrin beta 4 subunit, a receptor for the laminins. This subunit tends to associate with alpha 6 subunit and is likely to play a pivotal role in the biology of invasive carcinoma. Mutations in this gene are associated with epidermolysis bullosa with pyloric atresia. Multiple alternatively spliced transcript variants encoding distinct isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ITGB4 Gene-Disease associations (from GenCC):

epidermolysis bullosa simplex
Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
junctional epidermolysis bullosa with pyloric atresia
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Ambry Genetics, Genomics England PanelApp
junctional epidermolysis bullosa, non-Herlitz type
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp
aplasia cutis congenita
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
epidermolysis bullosa simplex 5C, with pyloric atresia
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
generalized junctional epidermolysis bullosa non-Herlitz type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
localized junctional epidermolysis bullosa, non-Herlitz type
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
epidermolysis bullosa simplex 1C, localized
Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

ITGB4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 14 ACMG points.

PS3

PS3 evidence extracted from ClinVar submissions: SCV006073432: The most pronounced variant effect results in <10% of normal protein expression in a patient skin sample as determined by immunofluorescence (example, Mencia_2016). PMID: 26739954

PP3

MetaRNN computational evidence supports a deleterious effect, 0.858

PP5

Variant 17-75750992-G-A is Pathogenic according to our data. Variant chr17-75750992-G-A is described in ClinVar as Pathogenic/Likely_pathogenic. ClinVar VariationId is 14743.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000213.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ITGB4	NM_000213.5	MANE Select	c.3674G>A	p.Arg1225His	missense	Exon 30 of 40	NP_000204.3
ITGB4	NM_001005619.2		c.3674G>A	p.Arg1225His	missense	Exon 30 of 40	NP_001005619.1
ITGB4	NM_001005731.3		c.3674G>A	p.Arg1225His	missense	Exon 30 of 39	NP_001005731.1	P16144-2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ITGB4	ENST00000200181.8	TSL:1 MANE Select	c.3674G>A	p.Arg1225His	missense	Exon 30 of 40	ENSP00000200181.3	P16144-1
ITGB4	ENST00000449880.7	TSL:1	c.3674G>A	p.Arg1225His	missense	Exon 30 of 40	ENSP00000400217.2	P16144-3
ITGB4	ENST00000450894.7	TSL:1	c.3674G>A	p.Arg1225His	missense	Exon 30 of 39	ENSP00000405536.3	P16144-2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

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:

0.00

GnomAD4 exome

AF:

0.00000411

AC:

AN:

1461474

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727022

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53016

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1112004

Other (OTH)

AF:

0.00

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.0000131

AC:

AN:

152206

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74358

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

41454

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5198

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68036

Other (OTH)

AF:

0.00

AC:

AN:

2088

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.00000000770867), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

ClinVar submissions

Significance:Pathogenic/Likely pathogenic

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

Junctional epidermolysis bullosa with pyloric atresia (3)

Junctional epidermolysis bullosa (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.73

BayesDel_addAF

Pathogenic

0.28

BayesDel_noAF

Pathogenic

0.16

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.36

Eigen

Pathogenic

0.71

Eigen_PC

Uncertain

0.64

FATHMM_MKL

Uncertain

0.97

LIST_S2

Uncertain

0.97

M_CAP

Benign

0.083

MetaRNN

Pathogenic

0.86

MetaSVM

Uncertain

-0.18

MutationAssessor

Benign

1.8

PhyloP100

PrimateAI

Pathogenic

0.84

PROVEAN

Uncertain

-2.6

REVEL

Uncertain

0.44

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.90

MutPred

0.68

Gain of glycosylation at S1221 (P = 0.0599)

MVP

0.91

MPC

2.0

ClinPred

0.98

GERP RS

4.4

Varity_R

0.91

gMVP

0.46

Mutation Taster

=0/100

disease causing (ClinVar)

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over