chrX-37803981-G-A

Variant summary

Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BA1

The NM_000397.4(CYBB):​c.1002G>A​(p.Lys334=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00969 in 1,209,331 control chromosomes in the GnomAD database, including 698 homozygotes. There are 3,144 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.052 ( 374 hom., 1570 hem., cov: 22)
Exomes 𝑓: 0.0054 ( 324 hom. 1574 hem. )

Consequence

CYBB
NM_000397.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 0.153
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -21 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.8).
BP6
Variant X-37803981-G-A is Benign according to our data. Variant chrX-37803981-G-A is described in ClinVar as [Benign]. Clinvar id is 464971.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chrX-37803981-G-A is described in Lovd as [Benign].
BP7
Synonymous conserved (PhyloP=0.153 with no splicing effect.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.172 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYBBNM_000397.4 linkuse as main transcriptc.1002G>A p.Lys334= synonymous_variant 9/13 ENST00000378588.5
CYBBXM_047441855.1 linkuse as main transcriptc.696G>A p.Lys232= synonymous_variant 8/12

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYBBENST00000378588.5 linkuse as main transcriptc.1002G>A p.Lys334= synonymous_variant 9/131 NM_000397.4 P1
CYBBENST00000696171.1 linkuse as main transcriptc.906G>A p.Lys302= synonymous_variant 8/12
CYBBENST00000492288.1 linkuse as main transcriptn.427G>A non_coding_transcript_exon_variant 4/43
CYBBENST00000696170.1 linkuse as main transcriptc.*511G>A 3_prime_UTR_variant, NMD_transcript_variant 8/12

Frequencies

GnomAD3 genomes
AF:
0.0518
AC:
5771
AN:
111434
Hom.:
373
Cov.:
22
AF XY:
0.0465
AC XY:
1564
AN XY:
33668
show subpopulations
Gnomad AFR
AF:
0.176
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0296
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00113
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00420
Gnomad NFE
AF:
0.000546
Gnomad OTH
AF:
0.0347
GnomAD3 exomes
AF:
0.0153
AC:
2795
AN:
183062
Hom.:
174
AF XY:
0.0102
AC XY:
691
AN XY:
67652
show subpopulations
Gnomad AFR exome
AF:
0.185
Gnomad AMR exome
AF:
0.0104
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000367
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000429
Gnomad OTH exome
AF:
0.00797
GnomAD4 exome
AF:
0.00542
AC:
5945
AN:
1097846
Hom.:
324
Cov.:
31
AF XY:
0.00433
AC XY:
1574
AN XY:
363404
show subpopulations
Gnomad4 AFR exome
AF:
0.176
Gnomad4 AMR exome
AF:
0.0122
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000425
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.000244
Gnomad4 OTH exome
AF:
0.0137
GnomAD4 genome
AF:
0.0518
AC:
5779
AN:
111485
Hom.:
374
Cov.:
22
AF XY:
0.0465
AC XY:
1570
AN XY:
33729
show subpopulations
Gnomad4 AFR
AF:
0.176
Gnomad4 AMR
AF:
0.0296
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00113
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000546
Gnomad4 OTH
AF:
0.0343
Alfa
AF:
0.0224
Hom.:
221
Bravo
AF:
0.0601
EpiCase
AF:
0.000436
EpiControl
AF:
0.000356

ClinVar

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

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Granulomatous disease, chronic, X-linked Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Chronic granulomatous disease Benign:1
Benign, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.80
CADD
Benign
4.2
DANN
Benign
0.73

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

LitVar

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

Other links and lift over

dbSNP: rs2228117; hg19: chrX-37663234; API