chr19-35536965-C-G

Variant names:

• chr19-35536965-C-G
• rs776756605
• NM_014364.5:c.220C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_014364.5(GAPDHS):​c.220C>G​(p.Arg74Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,650 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R74Q) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: GAPDHS NM_014364.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.0270
• Publications: 0 publications found

Genes affected

GAPDHS (HGNC:24864): (glyceraldehyde-3-phosphate dehydrogenase, spermatogenic) This gene encodes a protein belonging to the glyceraldehyde-3-phosphate dehydrogenase family of enzymes that play an important role in carbohydrate metabolism. Like its somatic cell counterpart, this sperm-specific enzyme functions in a nicotinamide adenine dinucleotide-dependent manner to remove hydrogen and add phosphate to glyceraldehyde 3-phosphate to form 1,3-diphosphoglycerate. During spermiogenesis, this enzyme may play an important role in regulating the switch between different energy-producing pathways, and it is required for sperm motility and male fertility. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.073966295).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014364.5. 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
	GAPDHS	NM_014364.5	MANE Select	c.220C>G	p.Arg74Gly	missense	Exon 2 of 11	NP_055179.1	O14556

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	GAPDHS	ENST00000222286.9	TSL:1 MANE Select	c.220C>G	p.Arg74Gly	missense	Exon 2 of 11	ENSP00000222286.3	O14556
	GAPDHS	ENST00000585510.1	TSL:3	c.16C>G	p.Arg6Gly	missense	Exon 1 of 6	ENSP00000467255.1	K7EP73
	GAPDHS	ENST00000586334.1	TSL:2	n.68-1342C>G		intron	N/A	ENSP00000466432.1	K7EMB2

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461650 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727134

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44716

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86226

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111842

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.080
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.58
CADD	Benign	9.3
DANN	Benign	0.92
DEOGEN2	Benign	0.15	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.090	N
LIST_S2	Benign	0.53	T
M_CAP	Benign	0.0024	T
MetaRNN	Benign	0.074	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.34	N
PhyloP100		-0.027
PrimateAI	Benign	0.41	T
PROVEAN	Benign	-0.57	N
REVEL	Benign	0.019
Sift	Uncertain	0.019	D
Sift4G	Benign	0.27	T
Polyphen		0.093	B
Vest4		0.22
MutPred		0.45		Loss of MoRF binding (P = 0.0198)
MVP		0.11
MPC		0.20
ClinPred		0.17	T
GERP RS		-0.63
PromoterAI		-0.021	Neutral
Varity_R		0.25
gMVP		0.53
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.030		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: rs776756605; hg19: chr19-36027867;