5-51389708-A-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_002202.3(ISL1):c.541A>T(p.Thr181Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000159 in 1,613,766 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 (no stars).

Frequency

Genomes: 𝑓 0.00027 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00015 ( 0 hom. )

Consequence

ISL1
NM_002202.3 missense

Scores

Clinical Significance

Uncertain significance no assertion criteria provided U:1

Conservation

PhyloP100: 7.46

Variant links:

Genes affected

ISL1 (HGNC:6132): (ISL LIM homeobox 1) This gene encodes a member of the LIM/homeodomain family of transcription factors. The encoded protein binds to the enhancer region of the insulin gene, among others, and may play an important role in regulating insulin gene expression. The encoded protein is central to the development of pancreatic cell lineages and may also be required for motor neuron generation. Mutations in this gene have been associated with maturity-onset diabetes of the young. [provided by RefSeq, Jul 2008]

ISL1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.08828819).

BS2

High AC in GnomAd4 at 41 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ISL1	NM_002202.3 link	c.541A>T	p.Thr181Ser	missense_variant	Exon 4 of 6	ENST00000230658.12	NP_002193.2	P61371
ISL1	XM_011543380.3 link	c.349A>T	p.Thr117Ser	missense_variant	Exon 3 of 5		XP_011541682.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
ISL1	ENST00000230658.12 link	c.541A>T	p.Thr181Ser	missense_variant	Exon 4 of 6	1	NM_002202.3	ENSP00000230658.7	P61371
ISL1	ENST00000511384.1 link	c.541A>T	p.Thr181Ser	missense_variant	Exon 4 of 6	5		ENSP00000422676.1	D6RBJ1
ISL1	ENST00000505475.3 link	n.746A>T		non_coding_transcript_exon_variant	Exon 3 of 5	5

Frequencies

GnomAD3 genomes

AF:

0.000270

AC:

AN:

152096

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00177

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:

0.000176

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.000160

AC:

AN:

250414

Hom.:

AF XY:

0.000155

AC XY:

AN XY:

135564

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000405

Gnomad ASJ exome

AF:

0.0000995

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000186

Gnomad OTH exome

AF:

0.000491

GnomAD4 exome

AF:

0.000147

AC:

215

AN:

1461554

Hom.:

Cov.:

AF XY:

0.000154

AC XY:

112

AN XY:

727092

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000671

Gnomad4 ASJ exome

AF:

0.0000383

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.000132

Gnomad4 OTH exome

AF:

0.000364

GnomAD4 genome

AF:

0.000269

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000269

AC XY:

AN XY:

74418

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00176

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000177

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000338

Hom.:

Bravo

AF:

0.000502

ExAC

AF:

0.000140

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000327

EpiControl

AF:

0.000296

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

LINK: link

Submissions by phenotype

ISL1-related disorder

Uncertain:1

Mar 21, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The ISL1 c.541A>T variant is predicted to result in the amino acid substitution p.Thr181Ser. To our knowledge, this variant has not been reported in the literature in association with obesity; however, this variant has been previously observed in a genome-wide association study of individuals with isolated classic bladder exstrophy (CBE) (Draaken et al. 2015. PubMed ID: 25763902). This variant is reported in 0.042% of alleles in individuals of Latino descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.55

BayesDel_addAF

Benign

-0.062

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.34

T;T

Eigen

Uncertain

0.41

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Uncertain

0.96

LIST_S2

Benign

0.82

T;T

M_CAP

Pathogenic

0.46

MetaRNN

Benign

0.088

T;T

MetaSVM

Uncertain

0.53

MutationAssessor

Uncertain

2.3

M;.

PrimateAI

Pathogenic

0.91

PROVEAN

Benign

-1.7

N;N

REVEL

Uncertain

0.41

Sift

Benign

0.16

T;T

Sift4G

Benign

0.43

T;T

Polyphen

0.87

P;.

Vest4

0.41

MutPred

0.20

Loss of glycosylation at T181 (P = 0.0364);Loss of glycosylation at T181 (P = 0.0364);

MVP

0.82

MPC

1.0

ClinPred

0.092

GERP RS

6.0

Varity_R

0.24

gMVP

0.57

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