2-171522720-G-A

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_024843.4(CYBRD1):​c.175G>A​(p.Val59Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,613,394 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

CYBRD1
NM_024843.4 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.562
Variant links:
Genes affected
CYBRD1 (HGNC:20797): (cytochrome b reductase 1) This gene is a member of the cytochrome b(561) family that encodes an iron-regulated protein. It highly expressed in the duodenal brush border membrane. It has ferric reductase activity and is believed to play a physiological role in dietary iron absorption. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.066507995).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CYBRD1NM_024843.4 linkuse as main transcriptc.175G>A p.Val59Ile missense_variant 1/4 ENST00000321348.9
CYBRD1NM_001127383.2 linkuse as main transcriptc.175G>A p.Val59Ile missense_variant 1/3
CYBRD1NM_001256909.2 linkuse as main transcriptc.19+429G>A intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CYBRD1ENST00000321348.9 linkuse as main transcriptc.175G>A p.Val59Ile missense_variant 1/41 NM_024843.4 P1Q53TN4-1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152198
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000169
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000805
AC:
2
AN:
248354
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
133912
show subpopulations
Gnomad AFR exome
AF:
0.000125
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:
0.00000137
AC:
2
AN:
1461196
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
726810
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
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:
0.0000166
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152198
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74356
show subpopulations
Gnomad4 AFR
AF:
0.000169
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:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000986
Hom.:
0
Bravo
AF:
0.0000453
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsApr 22, 2022The c.175G>A (p.V59I) alteration is located in exon 1 (coding exon 1) of the CYBRD1 gene. This alteration results from a G to A substitution at nucleotide position 175, causing the valine (V) at amino acid position 59 to be replaced by an isoleucine (I). 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
Benign
0.075
BayesDel_addAF
Benign
-0.44
T
BayesDel_noAF
Benign
-0.63
CADD
Benign
13
DANN
Benign
0.96
DEOGEN2
Benign
0.086
T;.
Eigen
Benign
-0.95
Eigen_PC
Benign
-0.82
FATHMM_MKL
Benign
0.34
N
LIST_S2
Benign
0.79
T;T
M_CAP
Benign
0.047
D
MetaRNN
Benign
0.067
T;T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.57
N;N
MutationTaster
Benign
0.97
D;D;D
PrimateAI
Benign
0.41
T
PROVEAN
Benign
-0.23
N;N
REVEL
Benign
0.074
Sift
Benign
0.67
T;T
Sift4G
Benign
0.46
T;T
Polyphen
0.033
B;B
Vest4
0.078
MVP
0.22
MPC
0.35
ClinPred
0.076
T
GERP RS
1.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.18
gMVP
0.37

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: rs754748261; hg19: chr2-172379230; API