7-134447320-T-C

Variant summary

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

The NM_001628.4(AKR1B1):c.803A>G(p.Glu268Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000026 in 1,614,122 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

AKR1B1
NM_001628.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.311

Variant links:

Genes affected

AKR1B1 (HGNC:381): (aldo-keto reductase family 1 member B) This gene encodes a member of the aldo/keto reductase superfamily, which consists of more than 40 known enzymes and proteins. This member catalyzes the reduction of a number of aldehydes, including the aldehyde form of glucose, and is thereby implicated in the development of diabetic complications by catalyzing the reduction of glucose to sorbitol. Multiple pseudogenes have been identified for this gene. The nomenclature system used by the HUGO Gene Nomenclature Committee to define human aldo-keto reductase family members is known to differ from that used by the Mouse Genome Informatics database. [provided by RefSeq, Feb 2009]

AKR1B1 links:

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=0.05399126).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
AKR1B1	NM_001628.4 linkuse as main transcript	c.803A>G	p.Glu268Gly	missense_variant	8/10	ENST00000285930.9
AKR1B1	NM_001346142.1 linkuse as main transcript	c.371A>G	p.Glu124Gly	missense_variant	8/10
AKR1B1	NR_144376.2 linkuse as main transcript	n.1439A>G		non_coding_transcript_exon_variant	7/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
AKR1B1	ENST00000285930.9 linkuse as main transcript	c.803A>G	p.Glu268Gly	missense_variant	8/10	1	NM_001628.4	P1
AKR1B1	ENST00000465351.5 linkuse as main transcript	n.1441A>G		non_coding_transcript_exon_variant	7/9	1
AKR1B1	ENST00000467251.1 linkuse as main transcript	n.107A>G		non_coding_transcript_exon_variant	2/3	4
AKR1B1	ENST00000434222.5 linkuse as main transcript	c.*530A>G		3_prime_UTR_variant, NMD_transcript_variant	8/10	5

Frequencies

GnomAD3 genomes

AF:

0.000125

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000458

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

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

251432

Hom.:

AF XY:

0.0000221

AC XY:

AN XY:

135892

show subpopulations

Gnomad AFR exome

AF:

0.000369

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:

0.0000164

AC:

AN:

1461826

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727204

show subpopulations

Gnomad4 AFR exome

AF:

0.000448

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:

8.99e-7

Gnomad4 OTH exome

AF:

0.000116

GnomAD4 genome

AF:

0.000118

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.0000940

AC XY:

AN XY:

74460

show subpopulations

Gnomad4 AFR

AF:

0.000433

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:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000132

Hom.:

Bravo

AF:

0.0000982

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000247

AC:

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 submitter

clinical testing

Ambry Genetics

May 27, 2022

The c.803A>G (p.E268G) alteration is located in exon 8 (coding exon 8) of the AKR1B1 gene. This alteration results from a A to G substitution at nucleotide position 803, causing the glutamic acid (E) at amino acid position 268 to be replaced by a glycine (G). 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

0.097

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.62

Cadd

Benign

Dann

Uncertain

0.99

DEOGEN2

Benign

0.19

Eigen

Benign

-0.63

Eigen_PC

Benign

-0.62

FATHMM_MKL

Benign

0.30

LIST_S2

Benign

0.54

M_CAP

Benign

0.0080

MetaRNN

Benign

0.054

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.5

MutationTaster

Benign

1.0

PrimateAI

Benign

0.21

PROVEAN

Benign

-1.0

REVEL

Benign

0.016

Sift

Benign

0.082

Sift4G

Benign

0.16

Polyphen

0.0

Vest4

0.23

MVP

0.37

MPC

0.25

ClinPred

0.026

GERP RS

1.4

Varity_R

0.35

gMVP

0.55

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over