NM_001953.5:c.622G>C

Variant names:

• chr22-50527612-C-G
• NM_001953.5:c.622G>C

Variant summary

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

The NM_001953.5(TYMP):​c.622G>C​(p.Val208Leu) 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: TYMP NM_001953.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.33

Genes affected

TYMP (HGNC:3148): (thymidine phosphorylase) This gene encodes an angiogenic factor which promotes angiogenesis in vivo and stimulates the in vitro growth of a variety of endothelial cells. It has a highly restricted target cell specificity acting only on endothelial cells. Mutations in this gene have been associated with mitochondrial neurogastrointestinal encephalomyopathy. Multiple alternatively spliced transcript variants have been identified. [provided by RefSeq, Apr 2012]

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, 0.96

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
TYMP	NM_001953.5	c.622G>C	p.Val208Leu	missense_variant	Exon 5 of 10	ENST00000252029.8	NP_001944.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
TYMP	ENST00000252029.8	c.622G>C	p.Val208Leu	missense_variant	Exon 5 of 10	1	NM_001953.5	ENSP00000252029.3

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	0.67
BayesDel_addAF	Pathogenic	0.30	D
BayesDel_noAF	Pathogenic	0.19
CADD	Benign	22
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.88	D;.;D;D;D
Eigen	Uncertain	0.48
Eigen_PC	Uncertain	0.38
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.97	.;D;.;D;D
M_CAP	Pathogenic	0.41	D
MetaRNN	Pathogenic	0.96	D;D;D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Uncertain	2.5	M;M;M;M;.
PrimateAI	Benign	0.40	T
PROVEAN	Uncertain	-2.8	D;D;D;D;D
REVEL	Pathogenic	0.78
Sift	Pathogenic	0.0	D;D;D;D;D
Sift4G	Pathogenic	0.0	D;D;D;D;D
Polyphen		1.0	D;.;D;D;.
Vest4		0.64
MutPred		0.83		Loss of glycosylation at T207 (P = 0.0924);Loss of glycosylation at T207 (P = 0.0924);Loss of glycosylation at T207 (P = 0.0924);Loss of glycosylation at T207 (P = 0.0924);.;
MVP		0.92
MPC		1.1
ClinPred		0.99	D
GERP RS		3.0
Varity_R		0.95
gMVP		0.90

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.050		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr22-50966041;