Genetic Variant ISL2:p.Leu146Leu (chr15-76338439-C-T) – ACMG Classification: Benign (-7 pts)

Variant summary

Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP7BS2

The NM_145805.3(ISL2):c.436C>T(p.Leu146Leu) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000206 in 1,458,342 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 34)

Exomes 𝑓: 0.000019 ( 0 hom. )

Consequence

ISL2
NM_145805.3 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.38

Publications

1 publications found

Variant links:

Genes affected

ISL2 (HGNC:18524): (ISL LIM homeobox 2) Enables sequence-specific double-stranded DNA binding activity. Predicted to be involved in axonogenesis; neuron fate specification; and regulation of transcription by RNA polymerase II. Predicted to act upstream of or within negative regulation of neuron differentiation and neuron differentiation. Predicted to be part of chromatin. Predicted to be active in nucleus. [provided by Alliance of Genome Resources, Apr 2022]

ISL2 links:

ENSG00000298977 (HGNC:):

ENSG00000298977 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -7 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.43).

BP7

Synonymous conserved (PhyloP=1.38 with no splicing effect.

BS2

High AC in GnomAd4 at 5 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_145805.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ISL2	NM_145805.3	MANE Select	c.436C>T	p.Leu146Leu	synonymous	Exon 3 of 6	NP_665804.1	Q96A47

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
ISL2	ENST00000290759.9	TSL:1 MANE Select	c.436C>T	p.Leu146Leu	synonymous	Exon 3 of 6	ENSP00000290759.4	Q96A47
ISL2	ENST00000558437.1	TSL:3	n.718C>T		non_coding_transcript_exon	Exon 2 of 2
ISL2	ENST00000558656.1	TSL:5	n.248+472C>T		intron	N/A	ENSP00000453837.1	H0YN25

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

151810

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

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

GnomAD2 exomes

AF:

0.0000119

AC:

AN:

84222

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000295

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000191

AC:

AN:

1306424

Hom.:

Cov.:

AF XY:

0.0000217

AC XY:

AN XY:

644104

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

26758

American (AMR)

AF:

0.0000393

AC:

AN:

25444

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

22896

East Asian (EAS)

AF:

0.00

AC:

AN:

27942

South Asian (SAS)

AF:

0.00

AC:

AN:

70700

European-Finnish (FIN)

AF:

0.00

AC:

AN:

33218

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4182

European-Non Finnish (NFE)

AF:

0.0000211

AC:

AN:

1041414

Other (OTH)

AF:

0.0000371

AC:

AN:

53870

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.535

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.0000329

AC:

AN:

151918

Hom.:

Cov.:

AF XY:

0.0000404

AC XY:

AN XY:

74280

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41506

American (AMR)

AF:

0.000328

AC:

AN:

15258

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5140

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10476

Middle Eastern (MID)

AF:

0.00

AC:

AN:

290

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

67932

Other (OTH)

AF:

0.00

AC:

AN:

2104

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000907

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.43

CADD

Benign

(source)

DANN

Benign

0.96

PhyloP100

1.4

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over