22-42636736-C-T

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 0P and 19B. BP4_ModerateBP6_Very_StrongBP7BA1

The NM_000398.7(CYB5R3):​c.132G>A​(p.Pro44=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.134 in 1,612,544 control chromosomes in the GnomAD database, including 15,689 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.12 ( 1310 hom., cov: 32)
Exomes 𝑓: 0.14 ( 14379 hom. )

Consequence

CYB5R3
NM_000398.7 synonymous

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: -2.96
Variant links:
Genes affected
CYB5R3 (HGNC:2873): (cytochrome b5 reductase 3) This gene encodes cytochrome b5 reductase, which includes a membrane-bound form in somatic cells (anchored in the endoplasmic reticulum, mitochondrial and other membranes) and a soluble form in erythrocytes. The membrane-bound form exists mainly on the cytoplasmic side of the endoplasmic reticulum and functions in desaturation and elongation of fatty acids, in cholesterol biosynthesis, and in drug metabolism. The erythrocyte form is located in a soluble fraction of circulating erythrocytes and is involved in methemoglobin reduction. The membrane-bound form has both membrane-binding and catalytic domains, while the soluble form has only the catalytic domain. Alternate splicing results in multiple transcript variants. Mutations in this gene cause methemoglobinemias. [provided by RefSeq, Jan 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.33).
BP6
Variant 22-42636736-C-T is Benign according to our data. Variant chr22-42636736-C-T is described in ClinVar as [Benign]. Clinvar id is 256011.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BP7
Synonymous conserved (PhyloP=-2.96 with no splicing effect.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.15 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
CYB5R3NM_000398.7 linkuse as main transcriptc.132G>A p.Pro44= synonymous_variant 2/9 ENST00000352397.10 NP_000389.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
CYB5R3ENST00000352397.10 linkuse as main transcriptc.132G>A p.Pro44= synonymous_variant 2/91 NM_000398.7 ENSP00000338461 P3P00387-1

Frequencies

GnomAD3 genomes
AF:
0.125
AC:
18993
AN:
152146
Hom.:
1305
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0986
Gnomad AMI
AF:
0.243
Gnomad AMR
AF:
0.118
Gnomad ASJ
AF:
0.171
Gnomad EAS
AF:
0.00173
Gnomad SAS
AF:
0.0366
Gnomad FIN
AF:
0.131
Gnomad MID
AF:
0.196
Gnomad NFE
AF:
0.152
Gnomad OTH
AF:
0.149
GnomAD3 exomes
AF:
0.113
AC:
28110
AN:
248000
Hom.:
1867
AF XY:
0.113
AC XY:
15174
AN XY:
134386
show subpopulations
Gnomad AFR exome
AF:
0.100
Gnomad AMR exome
AF:
0.0832
Gnomad ASJ exome
AF:
0.174
Gnomad EAS exome
AF:
0.000820
Gnomad SAS exome
AF:
0.0397
Gnomad FIN exome
AF:
0.139
Gnomad NFE exome
AF:
0.151
Gnomad OTH exome
AF:
0.139
GnomAD4 exome
AF:
0.135
AC:
197319
AN:
1460280
Hom.:
14379
Cov.:
33
AF XY:
0.133
AC XY:
96739
AN XY:
726368
show subpopulations
Gnomad4 AFR exome
AF:
0.0926
Gnomad4 AMR exome
AF:
0.0886
Gnomad4 ASJ exome
AF:
0.176
Gnomad4 EAS exome
AF:
0.000454
Gnomad4 SAS exome
AF:
0.0421
Gnomad4 FIN exome
AF:
0.138
Gnomad4 NFE exome
AF:
0.149
Gnomad4 OTH exome
AF:
0.134
GnomAD4 genome
AF:
0.125
AC:
19018
AN:
152264
Hom.:
1310
Cov.:
32
AF XY:
0.122
AC XY:
9059
AN XY:
74446
show subpopulations
Gnomad4 AFR
AF:
0.0988
Gnomad4 AMR
AF:
0.117
Gnomad4 ASJ
AF:
0.171
Gnomad4 EAS
AF:
0.00173
Gnomad4 SAS
AF:
0.0373
Gnomad4 FIN
AF:
0.131
Gnomad4 NFE
AF:
0.152
Gnomad4 OTH
AF:
0.151
Alfa
AF:
0.149
Hom.:
2063
Bravo
AF:
0.125
Asia WGS
AF:
0.0370
AC:
134
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Benign, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesNov 30, 2023- -
Benign, criteria provided, single submitterclinical testingGeneDxNov 10, 2018- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.33
CADD
Benign
2.7
DANN
Benign
0.92
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs5996200; hg19: chr22-43032742; API