Variant X-37783518-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM1PP3_Moderate

The NM_000397.4(CYBB):c.170C>T(p.Ala57Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000166 in 1,207,309 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 2 hemizygotes in GnomAD. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.0000089 ( 0 hom., 1 hem., cov: 23)

Exomes 𝑓: 9.1e-7 ( 0 hom. 1 hem. )

Consequence

CYBB
NM_000397.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.57

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]

CYBB links:

ENSG00000250349 (HGNC:):

ENSG00000250349 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM1

In a domain Ferric oxidoreductase (size 232) in uniprot entity CY24B_HUMAN there are 17 pathogenic changes around while only 0 benign (100%) in NM_000397.4

PP3

MetaRNN computational evidence supports a deleterious effect, 0.907

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CYBB	NM_000397.4 linkuse as main transcript	c.170C>T	p.Ala57Val	missense_variant	3/13	ENST00000378588.5	NP_000388.2	P04839A0A0S2Z3S6
CYBB	XM_047441855.1 linkuse as main transcript	c.-261C>T		5_prime_UTR_variant	1/12		XP_047297811.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CYBB	ENST00000378588.5 linkuse as main transcript	c.170C>T	p.Ala57Val	missense_variant	3/13	1	NM_000397.4	ENSP00000367851.4		P04839
ENSG00000250349	ENST00000465127.1 linkuse as main transcript	c.171+357518C>T		intron_variant		5		ENSP00000417050.1		B4E171

Frequencies

GnomAD3 genomes

AF:

0.00000892

AC:

AN:

112112

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

34262

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000947

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

GnomAD4 exome

AF:

9.13e-7

AC:

AN:

1095197

Hom.:

Cov.:

AF XY:

0.00000277

AC XY:

AN XY:

360879

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.0000218

GnomAD4 genome

AF:

0.00000892

AC:

AN:

112112

Hom.:

Cov.:

AF XY:

0.0000292

AC XY:

AN XY:

34262

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000947

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

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.99

BayesDel_addAF

Pathogenic

0.60

BayesDel_noAF

Pathogenic

0.63

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.73

FATHMM_MKL

Uncertain

0.90

LIST_S2

Uncertain

0.97

M_CAP

Pathogenic

0.44

MetaRNN

Pathogenic

0.91

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

3.8

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.2

REVEL

Pathogenic

0.89

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.0020

Polyphen

1.0

Vest4

0.79

MutPred

0.61

Loss of helix (P = 0.1299);

MVP

1.0

MPC

1.6

ClinPred

1.0

GERP RS

5.2

Varity_R

0.97

gMVP

0.99

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.23

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.23

Position offset: -28

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

LitVar

Other links and lift over