chr1-54174800-G-A

Variant names:

• chr1-54174800-G-A
• rs367565690
• NM_001031672.4:c.767C>T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001031672.4(CYB5RL):​c.767C>T​(p.Pro256Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000013 in 1,613,502 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: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000014 (0 hom.)
• Consequence: CYB5RL NM_001031672.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.61
• Publications: 0 publications found

Genes affected

CYB5RL (HGNC:32220): (cytochrome b5 reductase like) Predicted to enable cytochrome-b5 reductase activity, acting on NAD(P)H. Predicted to be involved in bicarbonate transport. Located in nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

ENSG00000256407 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.38456047).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001031672.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYB5RL	NM_001031672.4	MANE Select	c.767C>T	p.Pro256Leu	missense	Exon 8 of 8	NP_001026842.2	Q6IPT4-1
	CYB5RL	NM_001353353.2		c.530C>T	p.Pro177Leu	missense	Exon 6 of 6	NP_001340282.1
	CYB5RL	NM_001353354.2		c.323C>T	p.Pro108Leu	missense	Exon 7 of 7	NP_001340283.1	Q6IPT4-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	CYB5RL	ENST00000534324.6	TSL:5 MANE Select	c.767C>T	p.Pro256Leu	missense	Exon 8 of 8	ENSP00000434343.1	Q6IPT4-1
	CYB5RL	ENST00000420054.5	TSL:1	n.*761C>T		non_coding_transcript_exon	Exon 7 of 7	ENSP00000403021.1	F8WDU4
	CYB5RL	ENST00000421415.5	TSL:1	n.*405C>T		non_coding_transcript_exon	Exon 7 of 7	ENSP00000394709.1	F8VW03

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152192 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000805 AC: 2 AN: 248328 AF XY: 0.0000148

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000178

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000137 AC: 20 AN: 1461310 Hom.: 0 Cov.: 31 AF XY: 0.0000165 AC XY: 12 AN XY: 726948

African (AFR) AF: 0.00 AC: 0 AN: 33476

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86236

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53058

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.0000180 AC: 20 AN: 1111854

Other (OTH) AF: 0.00 AC: 0 AN: 60368

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152192 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74354

African (AFR) AF: 0.0000241 AC: 1 AN: 41444

American (AMR) AF: 0.00 AC: 0 AN: 15292

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3466

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68026

Other (OTH) AF: 0.00 AC: 0 AN: 2094

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000122 AC: 1

ExAC AF: 0.00000828 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.13	D
BayesDel_noAF	Uncertain	0.010
CADD	Pathogenic	27
DANN	Uncertain	1.0
DEOGEN2	Benign	0.12	T
Eigen	Uncertain	0.57
Eigen_PC	Uncertain	0.60
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.94	D
M_CAP	Benign	0.081	D
MetaRNN	Benign	0.38	T
MetaSVM	Uncertain	0.43	D
MutationAssessor	Uncertain	2.6	M
PhyloP100		6.6
PrimateAI	Uncertain	0.49	T
PROVEAN	Benign	-1.8	N
REVEL	Uncertain	0.64
Sift	Benign	0.13	T
Sift4G	Uncertain	0.0050	D
Polyphen		0.92	P
Vest4		0.63
MVP		0.62
ClinPred		0.96	D
GERP RS		5.2
Varity_R		0.21
gMVP		0.39
Mutation Taster		=65/35	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.040		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs367565690; hg19: chr1-54640473;