10-4968882-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001353.6(AKR1C1):c.508C>T(p.Arg170Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000112 in 1,614,124 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R170H) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000092 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00011 (0 hom.)
• Consequence: AKR1C1 NM_001353.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.860

Genes affected

AKR1C1 (HGNC:384): (aldo-keto reductase family 1 member C1) This gene encodes a member of the aldo/keto reductase superfamily, which consists of more than 40 known enzymes and proteins. These enzymes catalyze the conversion of aldehydes and ketones to their corresponding alcohols by utilizing NADH and/or NADPH as cofactors. The enzymes display overlapping but distinct substrate specificity. This enzyme catalyzes the reaction of progesterone to the inactive form 20-alpha-hydroxy-progesterone. This gene shares high sequence identity with three other gene members and is clustered with those three genes at chromosome 10p15-p14. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07675201).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AKR1C1	NM_001353.6	c.508C>T	p.Arg170Cys	missense_variant	5/9	ENST00000380872.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AKR1C1	ENST00000380872.9	c.508C>T	p.Arg170Cys	missense_variant	5/9	1	NM_001353.6	P1
AKR1C1	ENST00000442997.5	c.409C>T	p.Arg137Cys	missense_variant	5/7	3
AKR1C1	ENST00000380859.1	c.514C>T	p.Arg172Cys	missense_variant	5/6	3
AKR1C1	ENST00000477661.1	n.1965C>T		non_coding_transcript_exon_variant	4/8	5

Frequencies

GnomAD3 genomes AF: 0.0000920 AC: 14 AN: 152110 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000176

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000215 AC: 54 AN: 251492 Hom.: 0 AF XY: 0.000324 AC XY: 44 AN XY: 135918

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.0000992

Gnomad EAS exome AF: 0.000217

Gnomad SAS exome AF: 0.000915

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000167

Gnomad OTH exome AF: 0.000326

GnomAD4 exome AF: 0.000114 AC: 167 AN: 1461894 Hom.: 0 Cov.: 31 AF XY: 0.000131 AC XY: 95 AN XY: 727248

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.0000383

Gnomad4 EAS exome AF: 0.000176

Gnomad4 SAS exome AF: 0.000649

Gnomad4 FIN exome AF: 0.0000187

Gnomad4 NFE exome AF: 0.0000755

Gnomad4 OTH exome AF: 0.000166

GnomAD4 genome AF: 0.0000920 AC: 14 AN: 152230 Hom.: 0 Cov.: 32 AF XY: 0.0000941 AC XY: 7 AN XY: 74418

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000415

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000176

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000579 Hom.: 0

Bravo AF: 0.000132

TwinsUK AF: 0.00 AC: 0

ALSPAC AF: 0.000259 AC: 1

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000233 AC: 2

ExAC AF: 0.000255 AC: 31

Asia WGS AF: 0.000289 AC: 1 AN: 3478

EpiCase AF: 0.000327

EpiControl AF: 0.000356

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 01, 2023

The c.508C>T (p.R170C) alteration is located in exon 5 (coding exon 5) of the AKR1C1 gene. This alteration results from a C to T substitution at nucleotide position 508, causing the arginine (R) at amino acid position 170 to be replaced by a cysteine (C). 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	0.11
BayesDel_addAF	Benign	-0.40	T
BayesDel_noAF	Benign	-0.41
Cadd	Benign	19
Dann	Uncertain	0.98
DEOGEN2	Benign	0.13	T;T
Eigen	Benign	-0.67
Eigen_PC	Benign	-0.65
FATHMM_MKL	Benign	0.12	N
LIST_S2	Benign	0.63	T;T
M_CAP	Benign	0.0032	T
MetaRNN	Benign	0.077	T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.84	L;.
MutationTaster	Benign	0.99	D;D;D
PROVEAN	Pathogenic	-5.1	D;D
REVEL	Benign	0.13
Sift	Benign	0.11	T;T
Sift4G	Benign	0.24	T;T
Polyphen		0.049	B;.
Vest4		0.42
MVP		0.20
MPC		0.079
ClinPred		0.084	T
GERP RS		2.1
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.39
gMVP		0.40

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

Other links and lift over

dbSNP: rs149814010; hg19: chr10-5011074;