rs13306294

Variant names:

• chr16-88646323-C-A
• rs13306294
• NM_000101.4:c.288-126G>T

Your query was ambiguous. Multiple possible variants found:

• chr16-88646323-C-A
• chr16-88646323-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_000101.4(CYBA):​c.288-126G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 35)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: CYBA NM_000101.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.50
• Publications: 8 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CYBA	NM_000101.4	c.288-126G>T		intron_variant	Intron 4 of 5	ENST00000261623.8	NP_000092.2
CYBA	XM_011522905.4	c.288-126G>T		intron_variant	Intron 4 of 5		XP_011521207.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CYBA	ENST00000261623.8	c.288-126G>T		intron_variant	Intron 4 of 5	1	NM_000101.4	ENSP00000261623.3

Frequencies

GnomAD3 genomes Cov.: 35

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 562888 Hom.: 0 Cov.: 8 AF XY: 0.00 AC XY: 0 AN XY: 294752

African (AFR) AF: 0.00 AC: 0 AN: 17040

American (AMR) AF: 0.00 AC: 0 AN: 25646

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 16650

East Asian (EAS) AF: 0.00 AC: 0 AN: 30010

South Asian (SAS) AF: 0.00 AC: 0 AN: 53696

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 27710

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 3624

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 358688

Other (OTH) AF: 0.00 AC: 0 AN: 29824

GnomAD4 genome Cov.: 35

Alfa AF: 0.00 Hom.: 375

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	1.4
DANN	Benign	0.54
PhyloP100		-2.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs13306294; hg19: chr16-88712731;