Genetic Variant INSL3:p.Leu67Pro (chr19-17817050-A-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

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

The NM_005543.4(INSL3):c.200T>C(p.Leu67Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,460,970 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 31)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

INSL3
NM_005543.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.29

Variant links:

Genes affected

INSL3 (HGNC:6086): (insulin like 3) This gene encodes a member of the insulin-like hormone superfamily. The encoded protein is mainly produced in gonadal tissues. Studies of the mouse counterpart suggest that this gene may be involved in the development of urogenital tract and female fertility. This protein may also act as a hormone to regulate growth and differentiation of gubernaculum, and thus mediating intra-abdominal testicular descent. Mutations in this gene may lead to cryptorchidism. Alternate splicing results in multiple transcript variants. [provided by RefSeq, May 2012]

INSL3 links:

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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 rank	MANE	Protein	UniProt
INSL3	NM_005543.4 link	c.200T>C	p.Leu67Pro	missense_variant	Exon 2 of 2	ENST00000317306.8	NP_005534.2	P51460-1
INSL3	NM_001265587.2 link	c.295T>C	p.Tyr99His	missense_variant	Exon 3 of 3		NP_001252516.1	P51460-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
INSL3	ENST00000317306.8 link	c.200T>C	p.Leu67Pro	missense_variant	Exon 2 of 2	1	NM_005543.4	ENSP00000321724.6	P51460-1
INSL3	ENST00000379695.5 link	c.295T>C	p.Tyr99His	missense_variant	Exon 3 of 3	1		ENSP00000369017.4	P51460-2
INSL3	ENST00000598577 link	c.*6T>C		3_prime_UTR_variant	Exon 2 of 2	1		ENSP00000469309.1	M0QXQ3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000403

AC:

AN:

247940

Hom.:

AF XY:

0.00000744

AC XY:

AN XY:

134328

show subpopulations

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000897

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1460970

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

726790

show subpopulations

Gnomad4 AFR exome

AF:

0.00

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:

0.00000270

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000712

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Jan 18, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.200T>C (p.L67P) alteration is located in exon 2 (coding exon 2) of the INSL3 gene. This alteration results from a T to C substitution at nucleotide position 200, causing the leucine (L) at amino acid position 67 to be replaced by a proline (P). 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

Uncertain

0.47

BayesDel_addAF

Pathogenic

0.23

BayesDel_noAF

Benign

-0.31

CADD

Benign

DANN

Uncertain

0.98

DEOGEN2

Benign

0.22

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.19

FATHMM_MKL

Benign

0.66

LIST_S2

Benign

0.53

M_CAP

Benign

0.019

MetaRNN

Uncertain

0.58

MetaSVM

Benign

-1.0

PROVEAN

Benign

-0.83

REVEL

Uncertain

0.54

Sift

Uncertain

0.0040

Sift4G

Pathogenic

0.0

Polyphen

1.0

Vest4

0.39

MutPred

0.63

Loss of catalytic residue at L67 (P = 0.0029);

MVP

0.89

ClinPred

0.16

GERP RS

3.8

Varity_R

0.56

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