chr1-202963701-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_016243.3(CYB5R1):​c.586C>T​(p.Arg196Trp) variant causes a missense change. The variant allele was found at a frequency of 0.0000267 in 1,609,668 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000027 ( 0 hom. )

Consequence

CYB5R1
NM_016243.3 missense

Scores

9
5
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.27
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 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYB5R1NM_016243.3 linkuse as main transcriptc.586C>T p.Arg196Trp missense_variant 7/9 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.586C>T p.Arg196Trp missense_variant 7/91 NM_016243.3 ENSP00000356218.4 Q9UHQ9
CYB5R1ENST00000446185.1 linkuse as main transcriptc.379C>T p.Arg127Trp missense_variant 5/65 ENSP00000396382.1 H7C0R7
CYB5R1ENST00000482572.5 linkuse as main transcriptn.551C>T non_coding_transcript_exon_variant 6/85
CYB5R1ENST00000497655.1 linkuse as main transcriptn.1684C>T non_coding_transcript_exon_variant 1/22

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152192
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000654
AC:
16
AN:
244610
Hom.:
0
AF XY:
0.0000909
AC XY:
12
AN XY:
132064
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000177
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000272
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000181
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000268
AC:
39
AN:
1457358
Hom.:
0
Cov.:
30
AF XY:
0.0000359
AC XY:
26
AN XY:
724620
show subpopulations
Gnomad4 AFR exome
AF:
0.0000300
Gnomad4 AMR exome
AF:
0.000113
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000188
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000144
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152310
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74476
show subpopulations
Gnomad4 AFR
AF:
0.0000481
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000312
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000577
AC:
7

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 GeneticsSep 30, 2024The c.586C>T (p.R196W) alteration is located in exon 7 (coding exon 7) of the CYB5R1 gene. This alteration results from a C to T substitution at nucleotide position 586, causing the arginine (R) at amino acid position 196 to be replaced by a tryptophan (W). 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
0.22
BayesDel_addAF
Benign
-0.020
T
BayesDel_noAF
Uncertain
0.030
CADD
Pathogenic
32
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.72
D
Eigen
Pathogenic
0.84
Eigen_PC
Pathogenic
0.76
FATHMM_MKL
Uncertain
0.86
D
LIST_S2
Pathogenic
0.99
D
M_CAP
Benign
0.071
D
MetaRNN
Uncertain
0.74
D
MetaSVM
Pathogenic
0.85
D
MutationAssessor
Pathogenic
4.2
H
PrimateAI
Benign
0.31
T
PROVEAN
Pathogenic
-7.0
D
REVEL
Pathogenic
0.71
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0010
D
Polyphen
1.0
D
Vest4
0.52
MutPred
0.66
Gain of catalytic residue at L194 (P = 0.0077);
MVP
0.95
MPC
0.43
ClinPred
0.98
D
GERP RS
5.0
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.59
gMVP
0.69

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: rs777291289; hg19: chr1-202932829; COSMIC: COSV65916873; COSMIC: COSV65916873; API