Variant 20-13221867-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_080826.2(ISM1):c.91G>A(p.Asp31Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000916 in 1,418,614 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000047 ( 1 hom. )

Consequence

ISM1
NM_080826.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.04

Variant links:

Genes affected

ISM1 (HGNC:16213): (isthmin 1) Predicted to be involved in negative regulation of angiogenesis. Predicted to be located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

ISM1 links:

TASP1 (HGNC:):

TASP1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

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=0.08064169).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ISM1	NM_080826.2 linkuse as main transcript	c.91G>A	p.Asp31Asn	missense_variant	1/6	ENST00000262487.5	NP_543016.1	B1AKI9
ISM1	XM_017027680.2 linkuse as main transcript	c.91G>A	p.Asp31Asn	missense_variant	1/7		XP_016883169.1
TASP1	XR_001754319.3 linkuse as main transcript	n.1369+94103C>T		intron_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ISM1	ENST00000262487.5 linkuse as main transcript	c.91G>A	p.Asp31Asn	missense_variant	1/6	5	NM_080826.2	ENSP00000262487.3		B1AKI9

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000169

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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

GnomAD4 exome

AF:

0.00000474

AC:

AN:

1266598

Hom.:

Cov.:

AF XY:

0.00000643

AC XY:

AN XY:

622050

show subpopulations

Gnomad4 AFR exome

AF:

0.000158

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:

0.00

Gnomad4 OTH exome

AF:

0.0000384

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152016

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74256

show subpopulations

Gnomad4 AFR

AF:

0.000169

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Oct 08, 2024

The c.91G>A (p.D31N) alteration is located in exon 1 (coding exon 1) of the ISM1 gene. This alteration results from a G to A substitution at nucleotide position 91, causing the aspartic acid (D) at amino acid position 31 to be replaced by an asparagine (N). 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

0.082

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.70

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0058

Eigen

Benign

-0.44

Eigen_PC

Benign

-0.30

FATHMM_MKL

Benign

0.54

LIST_S2

Benign

0.44

M_CAP

Benign

0.019

MetaRNN

Benign

0.081

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.1

PrimateAI

Pathogenic

0.90

PROVEAN

Benign

0.010

REVEL

Benign

0.038

Sift

Benign

0.32

Sift4G

Benign

0.52

Polyphen

0.0020

Vest4

0.14

MutPred

0.21

Gain of catalytic residue at D31 (P = 0.0341);

MVP

0.24

MPC

0.037

ClinPred

0.26

GERP RS

2.9

Varity_R

0.052

gMVP

0.25

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