rs201052871

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_001556.3(IKBKB):​c.718G>A​(p.Glu240Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000651 in 1,613,856 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 0.000020 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

IKBKB
NM_001556.3 missense

Scores

5
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.64

Publications

5 publications found
Variant links:
Genes affected
IKBKB (HGNC:5960): (inhibitor of nuclear factor kappa B kinase subunit beta) The protein encoded by this gene phosphorylates the inhibitor in the inhibitor/NF-kappa-B complex, causing dissociation of the inhibitor and activation of NF-kappa-B. The encoded protein itself is found in a complex of proteins. Several transcript variants, some protein-coding and some not, have been found for this gene. [provided by RefSeq, Sep 2011]
IKBKB Gene-Disease associations (from GenCC):
  • severe combined immunodeficiency due to IKK2 deficiency
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, ClinGen, Ambry Genetics
  • immunodeficiency 15a
    Inheritance: AR, AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

BP4
Computational evidence support a benign effect (MetaRNN=0.1578007).
BS1
Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.0000698 (102/1461632) while in subpopulation NFE AF = 0.0000783 (87/1111776). AF 95% confidence interval is 0.000065. There are 0 homozygotes in GnomAdExome4. There are 46 alleles in the male GnomAdExome4 subpopulation. Median coverage is 29. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001556.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IKBKB
NM_001556.3
MANE Select
c.718G>Ap.Glu240Lys
missense
Exon 9 of 22NP_001547.1
IKBKB
NM_001242778.2
c.541G>Ap.Glu181Lys
missense
Exon 8 of 21NP_001229707.1
IKBKB
NM_001190720.3
c.526G>Ap.Glu176Lys
missense
Exon 8 of 21NP_001177649.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
IKBKB
ENST00000520810.6
TSL:1 MANE Select
c.718G>Ap.Glu240Lys
missense
Exon 9 of 22ENSP00000430684.1
IKBKB
ENST00000523517.5
TSL:1
n.718G>A
non_coding_transcript_exon
Exon 8 of 21ENSP00000430114.1
IKBKB
ENST00000957021.1
c.718G>Ap.Glu240Lys
missense
Exon 9 of 22ENSP00000627080.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152224
Hom.:
0
Cov.:
32
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:
0.000478
GnomAD2 exomes
AF:
0.0000358
AC:
9
AN:
251492
AF XY:
0.0000147
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.0000462
Gnomad NFE exome
AF:
0.0000527
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000698
AC:
102
AN:
1461632
Hom.:
0
Cov.:
29
AF XY:
0.0000633
AC XY:
46
AN XY:
727144
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.0000671
AC:
3
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39694
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.000112
AC:
6
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000783
AC:
87
AN:
1111776
Other (OTH)
AF:
0.0000828
AC:
5
AN:
60380
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
5
10
14
19
24
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:
0.0000197
AC:
3
AN:
152224
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74366
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41454
American (AMR)
AF:
0.00
AC:
0
AN:
15276
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5208
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000294
AC:
2
AN:
68044
Other (OTH)
AF:
0.000478
AC:
1
AN:
2094
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:
0.0000868
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions as Germline
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Severe combined immunodeficiency due to IKK2 deficiency (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Benign
0.063
T
Eigen
Benign
0.059
Eigen_PC
Uncertain
0.28
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.94
D
M_CAP
Benign
0.040
D
MetaRNN
Benign
0.16
T
MetaSVM
Benign
-0.84
T
MutationAssessor
Benign
0.68
N
PhyloP100
4.6
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-0.32
N
REVEL
Benign
0.038
Sift
Benign
0.13
T
Sift4G
Benign
0.88
T
Polyphen
0.010
B
Vest4
0.50
MutPred
0.43
Gain of methylation at E240 (P = 0.0074)
MVP
0.70
MPC
0.50
ClinPred
0.080
T
GERP RS
6.0
Varity_R
0.35
gMVP
0.51
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: rs201052871; hg19: chr8-42171865; API