Genetic Variant IGSF21:p.Arg160His (chr1-18362169-G-A) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_032880.5(IGSF21):c.479G>A(p.Arg160His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,613,196 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. 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. R160C) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00026 ( 1 hom., cov: 32)

Exomes 𝑓: 0.00016 ( 1 hom. )

Consequence

IGSF21
NM_032880.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.39

Publications

1 publications found

Variant links:

Genes affected

IGSF21 (HGNC:28246): (immunoglobin superfamily member 21) This gene encodes a protein which has two immunoglobulin (Ig) domains and is a member of the immunoglobulin superfamily. Proteins in this superfamily are usually found on or in cell membranes and act as receptors in immune response pathways. [provided by RefSeq, Sep 2011]

IGSF21 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.06726432).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_032880.5. 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
	IGSF21	NM_032880.5	MANE Select	c.479G>A	p.Arg160His	missense	Exon 5 of 10	NP_116269.3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IGSF21	ENST00000251296.4	TSL:1 MANE Select	c.479G>A	p.Arg160His	missense	Exon 5 of 10	ENSP00000251296.1	Q96ID5
IGSF21	ENST00000931381.1		c.458G>A	p.Arg153His	missense	Exon 5 of 10	ENSP00000601440.1
IGSF21	ENST00000873158.1		c.479G>A	p.Arg160His	missense	Exon 5 of 10	ENSP00000543217.1

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00212

Gnomad SAS

AF:

0.000828

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000308

AC:

AN:

249608

AF XY:

0.000297

show subpopulations

Gnomad AFR exome

AF:

0.000437

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00229

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.0000885

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.000161

AC:

235

AN:

1460892

Hom.:

Cov.:

AF XY:

0.000172

AC XY:

125

AN XY:

726614

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33468

American (AMR)

AF:

0.0000224

AC:

AN:

44628

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26118

East Asian (EAS)

AF:

0.00154

AC:

AN:

39688

South Asian (SAS)

AF:

0.000722

AC:

AN:

85856

European-Finnish (FIN)

AF:

0.0000187

AC:

AN:

53336

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000675

AC:

AN:

1111670

Other (OTH)

AF:

0.000431

AC:

AN:

60360

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.436

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.000263

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.000309

AC XY:

AN XY:

74464

show subpopulations

African (AFR)

AF:

0.000481

AC:

AN:

41572

American (AMR)

AF:

0.00

AC:

AN:

15302

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00213

AC:

AN:

5172

South Asian (SAS)

AF:

0.000829

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000735

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.497

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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

Alfa

AF:

0.000212

Hom.:

Bravo

AF:

0.000253

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000272

AC:

Asia WGS

AF:

0.00260

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.0000595

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.35

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Uncertain

0.060

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.013

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.54

FATHMM_MKL

Uncertain

0.96

LIST_S2

Uncertain

0.91

M_CAP

Benign

0.040

MetaRNN

Benign

0.067

MetaSVM

Benign

-0.50

MutationAssessor

Benign

1.8

PhyloP100

9.4

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-0.85

REVEL

Uncertain

0.40

Sift

Benign

0.052

Sift4G

Uncertain

0.0090

Polyphen

0.98

Vest4

0.90

MVP

0.84

MPC

0.94

ClinPred

0.11

GERP RS

4.6

Varity_R

0.19

gMVP

0.66

Mutation Taster

=61/39

polymorphism

(source)

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over