Genetic Variant IGSF23:p.Gln135Gln (chr19-44627433-G-A) – ACMG Classification: Likely_benign (-1 pts)

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP7

The NM_001205280.2(IGSF23):c.405G>A(p.Gln135Gln) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000194 in 1,543,090 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 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 7.2e-7 ( 0 hom. )

Consequence

IGSF23
NM_001205280.2 synonymous

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -1.62

Publications

0 publications found

Variant links:

Genes affected

IGSF23 (HGNC:40040): (immunoglobulin superfamily member 23) This gene encodes a protein that has one immunoglobulin (Ig) domain 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, Nov 2011]

IGSF23 links:

CEACAM16-AS1 (HGNC:55317): (CEACAM16, CEACAM19 and PVR antisense RNA 1)

CEACAM16-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (REVEL=0.042).

BP7

Synonymous conserved (PhyloP=-1.62 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001205280.2. 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
	IGSF23	NM_001205280.2	MANE Select	c.405G>A	p.Gln135Gln	synonymous	Exon 3 of 5	NP_001192209.1	A1L1A6

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
IGSF23	ENST00000402988.6	TSL:3 MANE Select	c.405G>A	p.Gln135Gln	synonymous	Exon 3 of 5	ENSP00000385592.1	A1L1A6
IGSF23	ENST00000441389.1	TSL:1	c.240G>A	p.Gln80Gln	synonymous	Exon 2 of 3	ENSP00000407344.1	H0Y6S3
IGSF23	ENST00000911252.1		c.492G>A	p.Gln164Gln	synonymous	Exon 4 of 6	ENSP00000581311.1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

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:

7.19e-7

AC:

AN:

1390952

Hom.:

Cov.:

AF XY:

0.00000146

AC XY:

AN XY:

684904

show subpopulations

African (AFR)

AF:

0.0000317

AC:

AN:

31498

American (AMR)

AF:

0.00

AC:

AN:

35398

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

24954

East Asian (EAS)

AF:

0.00

AC:

AN:

35514

South Asian (SAS)

AF:

0.00

AC:

AN:

78764

European-Finnish (FIN)

AF:

0.00

AC:

AN:

47966

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5648

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1073686

Other (OTH)

AF:

0.00

AC:

AN:

57524

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

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:

0.0000131

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74322

show subpopulations

African (AFR)

AF:

0.0000483

AC:

AN:

41426

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4834

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68004

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000113

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.93

CADD

Benign

0.15

(source)

DANN

Benign

0.50

PhyloP100

-1.6

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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