chr1-202962598-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_016243.3(CYB5R1):ā€‹c.847A>Gā€‹(p.Met283Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000161 in 1,614,000 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000020 ( 0 hom., cov: 33)
Exomes š‘“: 0.000016 ( 0 hom. )

Consequence

CYB5R1
NM_016243.3 missense

Scores

9
9
1

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 8.01
Variant links:
Genes affected
CYB5R1 (HGNC:13397): (cytochrome b5 reductase 1) Predicted to enable FAD binding activity. Predicted to be involved in bicarbonate transport. Located in extracellular exosome; membrane; and mitochondrion. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.873

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYB5R1NM_016243.3 linkuse as main transcriptc.847A>G p.Met283Val missense_variant 9/9 ENST00000367249.9 NP_057327.2 Q9UHQ9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYB5R1ENST00000367249.9 linkuse as main transcriptc.847A>G p.Met283Val missense_variant 9/91 NM_016243.3 ENSP00000356218.4 Q9UHQ9
CYB5R1ENST00000482572.5 linkuse as main transcriptn.812A>G non_coding_transcript_exon_variant 8/85
CYB5R1ENST00000483915.1 linkuse as main transcriptn.596A>G non_coding_transcript_exon_variant 2/22
CYB5R1ENST00000497655.1 linkuse as main transcriptn.2311A>G non_coding_transcript_exon_variant 2/22

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152216
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000385
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
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251312
Hom.:
0
AF XY:
0.0000368
AC XY:
5
AN XY:
135840
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000272
Gnomad SAS exome
AF:
0.0000327
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000157
AC:
23
AN:
1461784
Hom.:
0
Cov.:
30
AF XY:
0.0000165
AC XY:
12
AN XY:
727194
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.000176
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000540
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152216
Hom.:
0
Cov.:
33
AF XY:
0.00
AC XY:
0
AN XY:
74360
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000385
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000330
AC:
4
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

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 GeneticsNov 27, 2023The c.847A>G (p.M283V) alteration is located in exon 9 (coding exon 9) of the CYB5R1 gene. This alteration results from a A to G substitution at nucleotide position 847, causing the methionine (M) at amino acid position 283 to be replaced by a valine (V). 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
Uncertain
0.47
BayesDel_addAF
Pathogenic
0.31
D
BayesDel_noAF
Pathogenic
0.51
CADD
Pathogenic
27
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.67
D
Eigen
Pathogenic
0.99
Eigen_PC
Pathogenic
0.92
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.96
D
M_CAP
Uncertain
0.20
D
MetaRNN
Pathogenic
0.87
D
MetaSVM
Pathogenic
1.1
D
MutationAssessor
Pathogenic
4.7
H
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-3.5
D
REVEL
Pathogenic
0.87
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0020
D
Polyphen
0.95
P
Vest4
0.82
MutPred
0.75
Gain of catalytic residue at M283 (P = 0.0432);
MVP
0.95
MPC
0.44
ClinPred
0.95
D
GERP RS
6.1
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.66
gMVP
0.77

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: rs200152783; hg19: chr1-202931726; API