rs1803621

Positions:

• chr12-6537943-T-A
• chr12-6537943-T-C
• chr12-6537943-T-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2 PP3_Strong

The NM_002046.7(GAPDH):​c.885T>A​(p.Phe295Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: GAPDH NM_002046.7 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.439

Genes affected

GAPDH (HGNC:4141): (glyceraldehyde-3-phosphate dehydrogenase) This gene encodes a member of the glyceraldehyde-3-phosphate dehydrogenase protein family. The encoded protein has been identified as a moonlighting protein based on its ability to perform mechanistically distinct functions. The product of this gene catalyzes an important energy-yielding step in carbohydrate metabolism, the reversible oxidative phosphorylation of glyceraldehyde-3-phosphate in the presence of inorganic phosphate and nicotinamide adenine dinucleotide (NAD). The encoded protein has additionally been identified to have uracil DNA glycosylase activity in the nucleus. Also, this protein contains a peptide that has antimicrobial activity against E. coli, P. aeruginosa, and C. albicans. Studies of a similar protein in mouse have assigned a variety of additional functions including nitrosylation of nuclear proteins, the regulation of mRNA stability, and acting as a transferrin receptor on the cell surface of macrophage. Many pseudogenes similar to this locus are present in the human genome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Nov 2014]

(HGNC:):

ACMG classification

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.967

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
GAPDH	NM_002046.7	c.885T>A	p.Phe295Leu	missense_variant	8/9	ENST00000229239.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
GAPDH	ENST00000229239.10	c.885T>A	p.Phe295Leu	missense_variant	8/9	1	NM_002046.7	P1
	ENST00000602946.1	n.273A>T		non_coding_transcript_exon_variant	2/2	2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 35

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.060
CADD	Benign	4.8
DANN	Uncertain	0.99
DEOGEN2	Uncertain	0.50	D;.;D;D;.;.
Eigen	Benign	-0.58
Eigen_PC	Benign	-0.76
FATHMM_MKL	Benign	0.62	D
LIST_S2	Uncertain	0.88	.;D;.;D;.;D
M_CAP	Benign	0.068	D
MetaRNN	Pathogenic	0.97	D;D;D;D;D;D
MetaSVM	Benign	-0.29	T
MutationAssessor	Pathogenic	3.2	M;.;M;M;.;.
MutationTaster	Benign	0.59	P;P;P;P;P
PrimateAI	Pathogenic	0.81	D
PROVEAN	Uncertain	-4.4	D;D;D;D;D;.
REVEL	Uncertain	0.35
Sift	Uncertain	0.0010	D;D;D;D;D;.
Sift4G	Uncertain	0.019	D;D;D;D;D;D
Polyphen		0.075	B;P;B;B;.;.
Vest4		0.85
MutPred		0.88		Loss of catalytic residue at F295 (P = 0.0438);.;Loss of catalytic residue at F295 (P = 0.0438);Loss of catalytic residue at F295 (P = 0.0438);.;.;
MVP		0.51
MPC		0.80
ClinPred		1.0	D
GERP RS		-5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.87
gMVP		0.67

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

LitVar

Other links and lift over

dbSNP: rs1803621; hg19: chr12-6647109;