21-39793781-G-T

Variant names:

• chr21-39793781-G-T
• rs7278863
• NM_001080444.2:c.1128+168G>T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001080444.2(IGSF5):​c.1128+168G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,128 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 0.0000066 (0 hom., cov: 32)
• Consequence: IGSF5 NM_001080444.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -1.27

Genes affected

IGSF5 (HGNC:5952): (immunoglobulin superfamily member 5) Predicted to enable PDZ domain binding activity. Predicted to be involved in cell-cell adhesion. Predicted to be located in apical plasma membrane. Predicted to be integral component of membrane. Predicted to be active in bicellular tight junction and cell surface. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.93).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
IGSF5	NM_001080444.2	c.1128+168G>T		intron_variant	Intron 8 of 8	ENST00000380588.5	NP_001073913.1
IGSF5	XM_047440699.1	c.1398+168G>T		intron_variant	Intron 9 of 9		XP_047296655.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
IGSF5	ENST00000380588.5	c.1128+168G>T		intron_variant	Intron 8 of 8	1	NM_001080444.2	ENSP00000369962.4
IGSF5	ENST00000459922.1	n.550+168G>T		intron_variant	Intron 2 of 2	2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152128 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152128 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74318

Gnomad4 AFR AF: 0.00

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: 0.0000147

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.93
CADD	Benign	0.012
DANN	Benign	0.42

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

Other links and lift over

dbSNP: rs7278863; hg19: chr21-41165708;