rs751490879

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_000889.3(ITGB7):​c.2171C>T​(p.Thr724Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000409 in 1,612,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

ITGB7
NM_000889.3 missense

Scores

1
7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.30

Publications

0 publications found
Variant links:
Genes affected
ITGB7 (HGNC:6162): (integrin subunit beta 7) This gene encodes a protein that is a member of the integrin superfamily. Members of this family are adhesion receptors that function in signaling from the extracellular matrix to the cell. Integrins are heterodimeric integral membrane proteins composed of an alpha chain and a beta chain. The encoded protein forms dimers with an alpha4 chain or an alphaE chain and plays a role in leukocyte adhesion. Dimerization with alpha4 forms a homing receptor for migration of lymphocytes to the intestinal mucosa and Peyer's patches. Dimerization with alphaE permits binding to the ligand epithelial cadherin, a calcium-dependent adhesion molecule. Alternate splicing results in multiple transcript variants. Additional alternatively spliced transcript variants of this gene have been described, but their full-length nature is not known. [provided by RefSeq, Sep 2013]
ZNF740 (HGNC:27465): (zinc finger protein 740) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in regulation of transcription by RNA polymerase II. Predicted to be located in nucleus. Predicted to be part of chromatin. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.32622564).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITGB7NM_000889.3 linkc.2171C>T p.Thr724Met missense_variant Exon 15 of 16 ENST00000267082.10 NP_000880.1 P26010-1
ZNF740NM_001004304.4 linkc.*4414G>A 3_prime_UTR_variant Exon 7 of 7 ENST00000416904.5 NP_001004304.1 Q8NDX6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITGB7ENST00000267082.10 linkc.2171C>T p.Thr724Met missense_variant Exon 15 of 16 1 NM_000889.3 ENSP00000267082.4 P26010-1
ZNF740ENST00000416904.5 linkc.*4414G>A 3_prime_UTR_variant Exon 7 of 7 1 NM_001004304.4 ENSP00000409463.2 Q8NDX6

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
151996
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000725
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
GnomAD2 exomes
AF:
0.0000120
AC:
3
AN:
250148
AF XY:
0.00000740
show subpopulations
Gnomad AFR exome
AF:
0.0000616
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:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000418
AC:
61
AN:
1460748
Hom.:
0
Cov.:
31
AF XY:
0.0000385
AC XY:
28
AN XY:
726664
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33470
American (AMR)
AF:
0.0000448
AC:
2
AN:
44688
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86236
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52614
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.0000504
AC:
56
AN:
1111800
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60360
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.459
Heterozygous variant carriers
0
4
7
11
14
18
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:
0.0000329
AC:
5
AN:
151996
Hom.:
0
Cov.:
32
AF XY:
0.0000539
AC XY:
4
AN XY:
74224
show subpopulations
African (AFR)
AF:
0.0000725
AC:
3
AN:
41366
American (AMR)
AF:
0.00
AC:
0
AN:
15260
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5172
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10588
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68000
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
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:
0.0000560
Hom.:
0
Bravo
AF:
0.0000340
TwinsUK
AF:
0.000539
AC:
2
ALSPAC
AF:
0.00
AC:
0
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Jun 10, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2171C>T (p.T724M) alteration is located in exon 15 (coding exon 13) of the ITGB7 gene. This alteration results from a C to T substitution at nucleotide position 2171, causing the threonine (T) at amino acid position 724 to be replaced by a methionine (M). 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
0.12
BayesDel_addAF
Benign
-0.038
T
BayesDel_noAF
Benign
-0.11
CADD
Benign
22
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;T;.
Eigen
Benign
0.053
Eigen_PC
Benign
0.0063
FATHMM_MKL
Uncertain
0.85
D
LIST_S2
Uncertain
0.86
.;D;D
M_CAP
Pathogenic
0.31
D
MetaRNN
Benign
0.33
T;T;T
MetaSVM
Uncertain
-0.038
T
MutationAssessor
Benign
1.6
L;L;.
PhyloP100
3.3
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-0.13
N;N;.
REVEL
Uncertain
0.45
Sift
Uncertain
0.0030
D;D;.
Sift4G
Uncertain
0.025
D;D;D
Polyphen
0.98
D;D;.
Vest4
0.30
MutPred
0.40
Loss of sheet (P = 0.0357);Loss of sheet (P = 0.0357);.;
MVP
0.88
MPC
0.89
ClinPred
0.61
D
GERP RS
3.8
PromoterAI
-0.041
Neutral
Varity_R
0.041
gMVP
0.58
Mutation Taster
=82/18
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: rs751490879; hg19: chr12-53585788; API