Variant chr16-69424813-G-C details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_030579.3(CYB5B):c.130G>C(p.Val44Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000413 in 1,453,610 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

CYB5B
NM_030579.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.54

Variant links:

Genes affected

CYB5B (HGNC:24374): (cytochrome b5 type B) Enables heme binding activity. Contributes to nitrite reductase (NO-forming) activity. Involved in nitric oxide biosynthetic process. Located in membrane. Part of nitric-oxide synthase complex. [provided by Alliance of Genome Resources, Apr 2022]

CYB5B links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.335432).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CYB5B	NM_030579.3 linkuse as main transcript	c.130G>C	p.Val44Leu	missense_variant	1/5	ENST00000307892.13	NP_085056.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CYB5B	ENST00000307892.13 linkuse as main transcript	c.130G>C	p.Val44Leu	missense_variant	1/5	1	NM_030579.3	ENSP00000308430	P2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000374

AC:

AN:

240666

Hom.:

AF XY:

0.0000306

AC XY:

AN XY:

130812

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000309

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000472

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:

0.00000413

AC:

AN:

1453610

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

722948

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000230

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000129

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

Cov.:

Bravo

AF:

0.00000378

ExAC

AF:

0.0000413

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 27, 2024

The c.130G>C (p.V44L) alteration is located in exon 1 (coding exon 1) of the CYB5B gene. This alteration results from a G to C substitution at nucleotide position 130, causing the valine (V) at amino acid position 44 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Uncertain

0.10

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.37

T;.;T;T;T

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.92

LIST_S2

Pathogenic

0.97

D;D;D;D;D

M_CAP

Uncertain

0.096

MetaRNN

Benign

0.34

T;T;T;T;T

MetaSVM

Uncertain

0.21

MutationAssessor

Benign

1.9

L;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Benign

0.44

PROVEAN

Benign

-1.6

N;N;N;N;.

REVEL

Uncertain

0.56

Sift

Benign

0.17

T;T;T;T;.

Sift4G

Benign

0.12

T;T;T;T;D

Polyphen

1.0

D;.;B;.;.

Vest4

0.70

MutPred

0.73

Loss of sheet (P = 0.0817);.;Loss of sheet (P = 0.0817);Loss of sheet (P = 0.0817);.;

MVP

0.86

MPC

0.45

ClinPred

0.25

GERP RS

6.0

Varity_R

0.49

gMVP

0.59

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over