chr19-17816870-G-A

Variant summary

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

The NM_005543.4(INSL3):​c.380C>T​(p.Thr127Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,340 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. T127S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 31)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

INSL3
NM_005543.4 missense

Scores

7
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.209
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]

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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/exons MANE UniProt
INSL3NM_005543.4 linkuse as main transcriptc.380C>T p.Thr127Ile missense_variant 2/2 ENST00000317306.8
INSL3NM_001265587.2 linkuse as main transcriptc.*1C>T 3_prime_UTR_variant 3/3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
INSL3ENST00000317306.8 linkuse as main transcriptc.380C>T p.Thr127Ile missense_variant 2/21 NM_005543.4 P1P51460-1
INSL3ENST00000379695.5 linkuse as main transcriptc.*1C>T 3_prime_UTR_variant 3/31 P51460-2
INSL3ENST00000598577.1 linkuse as main transcriptc.*186C>T 3_prime_UTR_variant 2/21

Frequencies

GnomAD3 genomes
Cov.:
31
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461340
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726954
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:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
31

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 18, 2022The c.380C>T (p.T127I) alteration is located in exon 2 (coding exon 2) of the INSL3 gene. This alteration results from a C to T substitution at nucleotide position 380, causing the threonine (T) at amino acid position 127 to be replaced by an isoleucine (I). 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
0.24
BayesDel_addAF
Benign
-0.073
T
BayesDel_noAF
Benign
-0.34
CADD
Benign
18
DANN
Uncertain
1.0
DEOGEN2
Benign
0.35
T
Eigen
Benign
-0.18
Eigen_PC
Benign
-0.30
FATHMM_MKL
Benign
0.081
N
LIST_S2
Benign
0.52
T
M_CAP
Uncertain
0.090
D
MetaRNN
Uncertain
0.58
D
MetaSVM
Uncertain
0.052
D
MutationAssessor
Uncertain
2.4
M
MutationTaster
Benign
1.0
D;N
PROVEAN
Benign
-1.7
N
REVEL
Uncertain
0.38
Sift
Benign
0.092
T
Sift4G
Uncertain
0.042
D
Polyphen
0.97
D
Vest4
0.084
MutPred
0.49
Loss of disorder (P = 0.0098);
MVP
0.94
ClinPred
0.28
T
GERP RS
2.8
Varity_R
0.070

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-17927679; API