Variant 20-13270640-A-G 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.275A>G(p.His92Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000197 in 152,146 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)

Consequence

ISM1
NM_080826.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.27

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=0.076793104).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ISM1	NM_080826.2 linkuse as main transcript	c.275A>G	p.His92Arg	missense_variant	2/6	ENST00000262487.5
ISM1	XM_017027680.2 linkuse as main transcript	c.275A>G	p.His92Arg	missense_variant	2/7
TASP1	XR_001754319.3 linkuse as main transcript	n.1369+45330T>C		intron_variant, non_coding_transcript_variant
TASP1	XR_007067463.1 linkuse as main transcript	n.1370-4458T>C		intron_variant, non_coding_transcript_variant

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ISM1	ENST00000262487.5 linkuse as main transcript	c.275A>G	p.His92Arg	missense_variant	2/6	5	NM_080826.2	P1

Frequencies

GnomAD3 genomes

AF:

0.0000197

AC:

AN:

152146

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

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

Cov.:

GnomAD4 genome

AF:

0.0000197

AC:

AN:

152146

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74334

show subpopulations

Gnomad4 AFR

AF:

0.0000724

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:

0.00000378

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

Nov 12, 2021

The c.275A>G (p.H92R) alteration is located in exon 2 (coding exon 2) of the ISM1 gene. This alteration results from a A to G substitution at nucleotide position 275, causing the histidine (H) at amino acid position 92 to be replaced by an arginine (R). 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

0.072

BayesDel_addAF

Benign

-0.31

BayesDel_noAF

Benign

-0.69

Cadd

Benign

Dann

Benign

0.73

DEOGEN2

Benign

0.0094

Eigen

Benign

-0.68

Eigen_PC

Benign

-0.59

FATHMM_MKL

Uncertain

0.92

LIST_S2

Benign

0.65

M_CAP

Benign

0.0047

MetaRNN

Benign

0.077

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.7

MutationTaster

Benign

1.0

D;D

PrimateAI

Benign

0.40

PROVEAN

Benign

-0.87

REVEL

Benign

0.053

Sift

Benign

0.67

Sift4G

Benign

0.53

Polyphen

0.0

Vest4

0.30

MutPred

0.29

Gain of methylation at H92 (P = 0.0385);

MVP

0.030

MPC

0.041

ClinPred

0.088

GERP RS

0.92

Varity_R

0.067

gMVP

0.45

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