6-116279076-T-G

Variant names:

• chr6-116279076-T-G
• rs368075293
• NM_003309.4:c.755A>C

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_003309.4(TSPYL1):​c.755A>C​(p.Gln252Pro) 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 1,461,154 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. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. Q252R) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: TSPYL1 NM_003309.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.887
• Publications: 0 publications found

Genes affected

TSPYL1 (HGNC:12382): (TSPY like 1) The protein encoded by this gene is found in the nucleolus and is similar to that of a family of genes on the Y-chromosome. This gene is intronless. Defects in this gene are a cause of sudden infant death with dysgenesis of the testes syndrome (SIDDT). [provided by RefSeq, Dec 2009]

DSE (HGNC:21144): (dermatan sulfate epimerase) The protein encoded by this gene is a tumor-rejection antigen. It is localized to the endoplasmic reticulum and functions to convert D-glucuronic acid to L-iduronic acid during the biosynthesis of dermatan sulfate. This antigen possesses tumor epitopes capable of inducing HLA-A24-restricted and tumor-specific cytotoxic T lymphocytes in cancer patients and may be useful for specific immunotherapy. Mutations in this gene cause inmusculocontractural Ehlers-Danlos syndrome. Alternative splicing results in multiple transcript variants. A related pseudogene has been identified on chromosome 9, and a paralogous gene exists on chromosome 18. [provided by RefSeq, Apr 2016]

DSE Gene-Disease associations (from GenCC):

• Ehlers-Danlos syndrome, musculocontractural type 2

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Ambry Genetics, ClinGen, G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
• Ehlers-Danlos syndrome, musculocontractural type

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2765717).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003309.4. 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
	TSPYL1	NM_003309.4	MANE Select	c.755A>C	p.Gln252Pro	missense	Exon 1 of 1	NP_003300.1	Q9H0U9
	DSE	NM_001322937.2		c.-54+20109T>G		intron	N/A	NP_001309866.1	Q9UL01
	DSE	NM_001322938.2		c.-54+20109T>G		intron	N/A	NP_001309867.1	Q9UL01

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TSPYL1	ENST00000368608.4	TSL:6 MANE Select	c.755A>C	p.Gln252Pro	missense	Exon 1 of 1	ENSP00000357597.4	Q9H0U9
	DSE	ENST00000891542.1		c.-54+20109T>G		intron	N/A	ENSP00000561601.1
	DSE	ENST00000891543.1		c.-263+20109T>G		intron	N/A	ENSP00000561602.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461154 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726738

African (AFR) AF: 0.00 AC: 0 AN: 33432

American (AMR) AF: 0.00 AC: 0 AN: 44686

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 39688

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

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53406

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

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111446

Other (OTH) AF: 0.00 AC: 0 AN: 60360

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.88
BayesDel_addAF	Benign	-0.086	T
BayesDel_noAF	Benign	-0.36
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.023	T
Eigen	Benign	-0.15
Eigen_PC	Benign	-0.085
FATHMM_MKL	Benign	0.34	N
LIST_S2	Benign	0.25	T
M_CAP	Benign	0.010	T
MetaRNN	Benign	0.28	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		0.89
PrimateAI	Uncertain	0.50	T
PROVEAN	Uncertain	-3.7	D
REVEL	Benign	0.17
Sift	Benign	0.043	D
Sift4G	Benign	0.080	T
Polyphen		0.18	B
Vest4		0.49
MutPred		0.55		Loss of MoRF binding (P = 0.0444)
MVP		0.51
MPC		0.85
ClinPred		0.66	D
GERP RS		4.3
Varity_R		0.81
gMVP		0.67
Mutation Taster		=89/11	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: rs368075293; hg19: chr6-116600239;