rs179363890

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PM2PP3_StrongPP5_Moderate

The NM_000101.4(CYBA):​c.155T>C​(p.Leu52Pro) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,610,800 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 Pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. L52L) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

CYBA
NM_000101.4 missense

Scores

10
7
1

Clinical Significance

Pathogenic criteria provided, single submitter P:1O:1

Conservation

PhyloP100: 5.73

Publications

7 publications found
Variant links:
Genes affected
CYBA (HGNC:2577): (cytochrome b-245 alpha chain) Cytochrome b is comprised of a light chain (alpha) and a heavy chain (beta). This gene encodes the light, alpha subunit which has been proposed as a primary component of the microbicidal oxidase system of phagocytes. Mutations in this gene are associated with autosomal recessive chronic granulomatous disease (CGD), that is characterized by the failure of activated phagocytes to generate superoxide, which is important for the microbicidal activity of these cells. [provided by RefSeq, Jul 2008]
CYBA Gene-Disease associations (from GenCC):
  • granulomatous disease, chronic, autosomal recessive, cytochrome b-negative
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae)
  • chronic granulomatous disease
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.99
PP5
Variant 16-88647149-A-G is Pathogenic according to our data. Variant chr16-88647149-A-G is described in ClinVar as Pathogenic. ClinVar VariationId is 68209.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
CYBANM_000101.4 linkc.155T>C p.Leu52Pro missense_variant Exon 3 of 6 ENST00000261623.8 NP_000092.2
CYBAXM_011522905.4 linkc.155T>C p.Leu52Pro missense_variant Exon 3 of 6 XP_011521207.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
CYBAENST00000261623.8 linkc.155T>C p.Leu52Pro missense_variant Exon 3 of 6 1 NM_000101.4 ENSP00000261623.3

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152138
Hom.:
0
Cov.:
33
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00000408
AC:
1
AN:
245088
AF XY:
0.00000751
show subpopulations
Gnomad AFR exome
AF:
0.00
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000206
AC:
3
AN:
1458662
Hom.:
0
Cov.:
33
AF XY:
0.00000276
AC XY:
2
AN XY:
725718
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33444
American (AMR)
AF:
0.00
AC:
0
AN:
44668
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39620
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86148
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
50878
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111662
Other (OTH)
AF:
0.00
AC:
0
AN:
60346
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152138
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74316
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41440
American (AMR)
AF:
0.00
AC:
0
AN:
15268
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5188
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
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:
0.000224
Hom.:
0

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:1Other:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Pathogenic:1Other:1
UniProtKB/Swiss-Prot
Significance:not provided
Review Status:no classification provided
Collection Method:literature only

May 18, 2015
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The L52P variant in the CYBA gene has been reported previously in the apparently homozygous state inan individual with chronic granulomatous disease (Rae et al., 2000). The L52P substitution was not observedin approximately 6,500 individuals of European and African American ancestry in the NHLBI ExomeSequencing Project, indicating it is not a common benign variant in these populations. The L52P variant isa semi-conservative amino acid substitution, which may impact secondary protein structure as theseresidues differ in some properties. This substitution occurs at a position that is conserved across species. Insilico analysis predicts this variant is probably damaging to the protein structure/function. Missensevariants in nearby residues (L51Q, E53V, P55R) have been reported in the Human Gene MutationDatabase in association with chronic granulomatous disease (Stenson et al., 2014), supporting thefunctional importance of this region of the protein. We interpret L52P as a pathogenic variant.

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Pathogenic
0.37
D
BayesDel_noAF
Pathogenic
0.39
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.95
D;D;.;D
Eigen
Uncertain
0.64
Eigen_PC
Uncertain
0.55
FATHMM_MKL
Uncertain
0.94
D
LIST_S2
Benign
0.85
D;T;T;T
M_CAP
Pathogenic
0.77
D
MetaRNN
Pathogenic
0.99
D;D;D;D
MetaSVM
Pathogenic
0.81
D
MutationAssessor
Uncertain
2.7
M;.;.;.
PhyloP100
5.7
PrimateAI
Uncertain
0.70
T
PROVEAN
Pathogenic
-5.1
D;D;D;D
REVEL
Pathogenic
0.93
Sift
Uncertain
0.0010
D;D;D;D
Sift4G
Pathogenic
0.0010
D;D;D;.
Vest4
0.97
ClinPred
1.0
D
GERP RS
4.6
PromoterAI
0.022
Neutral
Varity_R
0.93
gMVP
0.98
Mutation Taster
=3/97
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
Splicevardb
2.0
SpliceAI score (max)
0.040
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: rs179363890; hg19: chr16-88713557; API