rs61737081

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_000211.5(ITGB2):​c.1002C>T​(p.Thr334Thr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.002 in 1,613,094 control chromosomes in the GnomAD database, including 49 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.010 ( 31 hom., cov: 32)
Exomes 𝑓: 0.0012 ( 18 hom. )

Consequence

ITGB2
NM_000211.5 synonymous

Scores

2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -5.61

Publications

2 publications found
Variant links:
Genes affected
ITGB2 (HGNC:6155): (integrin subunit beta 2) This gene encodes an integrin beta chain, which combines with multiple different alpha chains to form different integrin heterodimers. Integrins are integral cell-surface proteins that participate in cell adhesion as well as cell-surface mediated signalling. The encoded protein plays an important role in immune response and defects in this gene cause leukocyte adhesion deficiency. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2014]
ITGB2 Gene-Disease associations (from GenCC):
  • leukocyte adhesion deficiency 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.89).
BP6
Variant 21-44895052-G-A is Benign according to our data. Variant chr21-44895052-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 340160.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-5.61 with no splicing effect.
BS1
Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0101 (1539/152270) while in subpopulation AFR AF = 0.0342 (1422/41546). AF 95% confidence interval is 0.0327. There are 31 homozygotes in GnomAd4. There are 747 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 31 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ITGB2NM_000211.5 linkc.1002C>T p.Thr334Thr synonymous_variant Exon 9 of 16 ENST00000652462.1 NP_000202.3 P05107A0A494C0X7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ITGB2ENST00000652462.1 linkc.1002C>T p.Thr334Thr synonymous_variant Exon 9 of 16 NM_000211.5 ENSP00000498780.1 A0A494C0X7

Frequencies

GnomAD3 genomes
AF:
0.0101
AC:
1531
AN:
152152
Hom.:
30
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0341
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00478
Gnomad ASJ
AF:
0.00432
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000882
Gnomad OTH
AF:
0.00957
GnomAD2 exomes
AF:
0.00279
AC:
702
AN:
251172
AF XY:
0.00218
show subpopulations
Gnomad AFR exome
AF:
0.0344
Gnomad AMR exome
AF:
0.00211
Gnomad ASJ exome
AF:
0.00318
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000187
Gnomad NFE exome
AF:
0.000150
Gnomad OTH exome
AF:
0.00228
GnomAD4 exome
AF:
0.00115
AC:
1680
AN:
1460824
Hom.:
18
Cov.:
30
AF XY:
0.000991
AC XY:
720
AN XY:
726774
show subpopulations
African (AFR)
AF:
0.0328
AC:
1097
AN:
33438
American (AMR)
AF:
0.00280
AC:
125
AN:
44720
Ashkenazi Jewish (ASJ)
AF:
0.00367
AC:
96
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.000104
AC:
9
AN:
86250
European-Finnish (FIN)
AF:
0.000245
AC:
13
AN:
53064
Middle Eastern (MID)
AF:
0.00156
AC:
9
AN:
5766
European-Non Finnish (NFE)
AF:
0.000148
AC:
165
AN:
1111396
Other (OTH)
AF:
0.00275
AC:
166
AN:
60366
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
85
169
254
338
423
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
42
84
126
168
210
<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:
0.0101
AC:
1539
AN:
152270
Hom.:
31
Cov.:
32
AF XY:
0.0100
AC XY:
747
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.0342
AC:
1422
AN:
41546
American (AMR)
AF:
0.00477
AC:
73
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00432
AC:
15
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5180
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4830
European-Finnish (FIN)
AF:
0.000188
AC:
2
AN:
10620
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68006
Other (OTH)
AF:
0.00947
AC:
20
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.527
Heterozygous variant carriers
0
81
161
242
322
403
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
20
40
60
80
100
<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:
0.00549
Hom.:
7
Bravo
AF:
0.0117
Asia WGS
AF:
0.00375
AC:
13
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000237

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Leukocyte adhesion deficiency 1 Benign:2
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 27, 2017
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). Publications were found based on this search. The evidence from the literature, in combination with allele frequency data from public databases where available, was sufficient to determine this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

not provided Benign:1
-
Breakthrough Genomics, Breakthrough Genomics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

ITGB2-related disorder Benign:1
Jul 11, 2019
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.89
CADD
Benign
0.050
DANN
Benign
0.80
PhyloP100
-5.6
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs61737081; hg19: chr21-46314967; API