rs371707791

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_000397.4(CYBB):​c.1462-7C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000168 in 1,193,617 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 1 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.0000090 ( 0 hom., 0 hem., cov: 23)
Exomes 𝑓: 9.2e-7 ( 0 hom. 1 hem. )

Consequence

CYBB
NM_000397.4 splice_region, intron

Scores

2
Splicing: ADA: 0.0005734
2

Clinical Significance

Likely benign criteria provided, single submitter U:1B:1

Conservation

PhyloP100: -0.192
Variant links:
Genes affected
CYBB (HGNC:2578): (cytochrome b-245 beta chain) Cytochrome b (-245) is composed of cytochrome b alpha (CYBA) and beta (CYBB) chain. It has been proposed as a primary component of the microbicidal oxidase system of phagocytes. CYBB deficiency is one of five described biochemical defects associated with chronic granulomatous disease (CGD). In this disorder, there is decreased activity of phagocyte NADPH oxidase; neutrophils are able to phagocytize bacteria but cannot kill them in the phagocytic vacuoles. The cause of the killing defect is an inability to increase the cell's respiration and consequent failure to deliver activated oxygen into the phagocytic vacuole. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.79).
BP6
Variant X-37809560-C-A is Benign according to our data. Variant chrX-37809560-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 533557.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYBBNM_000397.4 linkuse as main transcriptc.1462-7C>A splice_region_variant, intron_variant ENST00000378588.5 NP_000388.2 P04839A0A0S2Z3S6
CYBBXM_047441855.1 linkuse as main transcriptc.1156-7C>A splice_region_variant, intron_variant XP_047297811.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYBBENST00000378588.5 linkuse as main transcriptc.1462-7C>A splice_region_variant, intron_variant 1 NM_000397.4 ENSP00000367851.4 P04839
ENSG00000250349ENST00000465127.1 linkuse as main transcriptc.171+383560C>A intron_variant 5 ENSP00000417050.1 B4E171
CYBBENST00000696171.1 linkuse as main transcriptc.1366-7C>A splice_region_variant, intron_variant ENSP00000512462.1 A0A8Q3SIJ1
CYBBENST00000696170.1 linkuse as main transcriptn.*971-7C>A splice_region_variant, intron_variant ENSP00000512461.1 A0A8Q3WMA3

Frequencies

GnomAD3 genomes
AF:
0.00000901
AC:
1
AN:
110966
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33216
show subpopulations
Gnomad AFR
AF:
0.0000328
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000128
AC:
2
AN:
155966
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
48190
show subpopulations
Gnomad AFR exome
AF:
0.000172
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS 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:
9.24e-7
AC:
1
AN:
1082651
Hom.:
0
Cov.:
29
AF XY:
0.00000283
AC XY:
1
AN XY:
353107
show subpopulations
Gnomad4 AFR exome
AF:
0.0000382
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000901
AC:
1
AN:
110966
Hom.:
0
Cov.:
23
AF XY:
0.00
AC XY:
0
AN XY:
33216
show subpopulations
Gnomad4 AFR
AF:
0.0000328
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756

ClinVar

Significance: Likely benign
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Chronic granulomatous disease Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingNatera, Inc.Oct 20, 2020- -
Granulomatous disease, chronic, X-linked Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 04, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.79
CADD
Benign
6.4
DANN
Benign
0.58

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00057
dbscSNV1_RF
Benign
0.080
SpliceAI score (max)
0.17
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs371707791; hg19: chrX-37668813; API