rs371045998

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6

The NM_000211.5(ITGB2):​c.1934C>T​(p.Ala645Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000261 in 1,610,290 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A645S) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 34)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

ITGB2
NM_000211.5 missense

Scores

17

Clinical Significance

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

Conservation

PhyloP100: -3.62

Publications

1 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, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.018006146).
BP6
Variant 21-44888839-G-A is Benign according to our data. Variant chr21-44888839-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 582347.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000211.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGB2
NM_000211.5
MANE Select
c.1934C>Tp.Ala645Val
missense
Exon 14 of 16NP_000202.3P05107
ITGB2
NM_001127491.3
c.1934C>Tp.Ala645Val
missense
Exon 14 of 16NP_001120963.2P05107
ITGB2
NM_001303238.2
c.1727C>Tp.Ala576Val
missense
Exon 14 of 16NP_001290167.1B4E0R1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
ITGB2
ENST00000652462.1
MANE Select
c.1934C>Tp.Ala645Val
missense
Exon 14 of 16ENSP00000498780.1A0A494C0X7
ITGB2
ENST00000302347.10
TSL:1
c.2006C>Tp.Ala669Val
missense
Exon 15 of 17ENSP00000303242.6A0AAA9WZN5
ITGB2
ENST00000397852.5
TSL:1
c.1934C>Tp.Ala645Val
missense
Exon 13 of 15ENSP00000380950.1P05107

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152252
Hom.:
0
Cov.:
34
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000403
AC:
10
AN:
248344
AF XY:
0.0000520
show subpopulations
Gnomad AFR exome
AF:
0.000186
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000247
AC:
36
AN:
1457920
Hom.:
0
Cov.:
33
AF XY:
0.0000289
AC XY:
21
AN XY:
725488
show subpopulations
African (AFR)
AF:
0.0000896
AC:
3
AN:
33474
American (AMR)
AF:
0.00
AC:
0
AN:
44716
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.0000756
AC:
3
AN:
39694
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
49602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000234
AC:
26
AN:
1111922
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60358
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.497
Heterozygous variant carriers
0
3
6
10
13
16
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:
0.0000394
AC:
6
AN:
152370
Hom.:
0
Cov.:
34
AF XY:
0.0000537
AC XY:
4
AN XY:
74514
show subpopulations
African (AFR)
AF:
0.0000721
AC:
3
AN:
41586
American (AMR)
AF:
0.00
AC:
0
AN:
15312
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.000386
AC:
2
AN:
5186
South Asian (SAS)
AF:
0.000207
AC:
1
AN:
4834
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68034
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.558
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000511
Hom.:
0
Bravo
AF:
0.0000378
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.000109
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Inborn genetic diseases (1)
-
1
-
Leukocyte adhesion deficiency 1 (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.076
BayesDel_addAF
Benign
-0.31
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
0.0020
DANN
Benign
0.84
DEOGEN2
Benign
0.0075
T
Eigen
Benign
-1.8
Eigen_PC
Benign
-1.9
FATHMM_MKL
Benign
0.019
N
LIST_S2
Benign
0.11
T
M_CAP
Benign
0.071
D
MetaRNN
Benign
0.018
T
MetaSVM
Benign
-0.73
T
PhyloP100
-3.6
PrimateAI
Benign
0.26
T
PROVEAN
Benign
-0.79
N
REVEL
Benign
0.25
Sift
Benign
0.33
T
Sift4G
Benign
0.30
T
Vest4
0.073
MVP
0.60
MPC
0.32
ClinPred
0.018
T
GERP RS
-5.9
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
gMVP
0.34
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs371045998; hg19: chr21-46308754; API