rs557645708

Variant names:

• chr5-58494610-G-A
• rs557645708
• NM_001304431.2:c.74G>A

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001304431.2(GAPT):​c.74G>A​(p.Cys25Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000558 in 1,614,026 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000048 (0 hom.)
• Consequence: GAPT NM_001304431.2 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.40
• Publications: 1 publications found

Genes affected

GAPT (HGNC:26588): (GRB2 binding adaptor protein, transmembrane) Predicted to be involved in B cell homeostasis and B cell proliferation involved in immune response. Located in Golgi apparatus and plasma membrane. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001304431.2. 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
	GAPT	NM_001304431.2	MANE Select	c.74G>A	p.Cys25Tyr	missense	Exon 3 of 3	NP_001291360.1	Q8N292
	GAPT	NM_001304428.2		c.74G>A	p.Cys25Tyr	missense	Exon 3 of 3	NP_001291357.1	Q8N292
	GAPT	NM_001304429.2		c.74G>A	p.Cys25Tyr	missense	Exon 3 of 3	NP_001291358.1	Q8N292

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GAPT	ENST00000502276.6	TSL:4 MANE Select	c.74G>A	p.Cys25Tyr	missense	Exon 3 of 3	ENSP00000423113.2	Q8N292
	GAPT	ENST00000318469.2	TSL:6	c.74G>A	p.Cys25Tyr	missense	Exon 1 of 1	ENSP00000323075.2	Q8N292
	GAPT	ENST00000396776.6	TSL:2	c.74G>A	p.Cys25Tyr	missense	Exon 3 of 3	ENSP00000379997.2	Q8N292

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152230 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: 0.000385

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

GnomAD2 exomes AF: 0.0000239 AC: 6 AN: 251030 AF XY: 0.0000295

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.000326

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000479 AC: 7 AN: 1461678 Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5 AN XY: 727122

African (AFR) AF: 0.00 AC: 0 AN: 33464

American (AMR) AF: 0.00 AC: 0 AN: 44668

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.000151 AC: 6 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53400

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111928

Other (OTH) AF: 0.0000166 AC: 1 AN: 60388

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152348 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74500

African (AFR) AF: 0.00 AC: 0 AN: 41580

American (AMR) AF: 0.00 AC: 0 AN: 15300

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.000386 AC: 2 AN: 5188

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68030

Other (OTH) AF: 0.00 AC: 0 AN: 2114

Alfa AF: 0.0000712 Hom.: 0

Bravo AF: 0.00000756

Asia WGS AF: 0.000289 AC: 1 AN: 3478

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.55
BayesDel_addAF	Benign	-0.0088	T
BayesDel_noAF	Uncertain	0.050
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.39	T
Eigen	Uncertain	0.35
Eigen_PC	Uncertain	0.31
FATHMM_MKL	Uncertain	0.84	D
LIST_S2	Benign	0.53	T
M_CAP	Benign	0.045	D
MetaRNN	Uncertain	0.48	T
MetaSVM	Benign	-0.37	T
MutationAssessor	Uncertain	2.2	M
PhyloP100		2.4
PrimateAI	Uncertain	0.52	T
PROVEAN	Pathogenic	-10	D
REVEL	Benign	0.24
Sift	Uncertain	0.0090	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.51
MutPred		0.36		Gain of sheet (P = 0.0344)
MVP		0.66
MPC		0.60
ClinPred		0.99	D
GERP RS		4.1
PromoterAI		-0.016	Neutral
Varity_R		0.60
gMVP		0.092
Mutation Taster		=92/8	polymorphism

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

Other links and lift over

dbSNP: rs557645708; hg19: chr5-57790437;