6-116431086-C-T

Variant names:

• chr6-116431086-C-T
• rs398122361
• NM_013352.4:c.803C>T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP5

The NM_013352.4(DSE):​c.803C>T​(p.Ser268Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Pathogenic (no stars).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DSE NM_013352.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.91
• Publications: 10 publications found

Genes affected

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

ENSG00000285446 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP5: Variant 6-116431086-C-T is Pathogenic according to our data. Variant chr6-116431086-C-T is described in ClinVar as Pathogenic. ClinVar VariationId is 88848.Status of the report is no_assertion_criteria_provided, 0 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013352.4. 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
	DSE	NM_013352.4	MANE Select	c.803C>T	p.Ser268Leu	missense	Exon 4 of 6	NP_037484.1	Q9UL01
	DSE	NM_001322939.2		c.860C>T	p.Ser287Leu	missense	Exon 4 of 6	NP_001309868.1	B7Z765
	DSE	NM_001080976.3		c.803C>T	p.Ser268Leu	missense	Exon 4 of 6	NP_001074445.1	Q9UL01

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DSE	ENST00000644252.3	MANE Select	c.803C>T	p.Ser268Leu	missense	Exon 4 of 6	ENSP00000494147.2	Q9UL01
	DSE	ENST00000452085.7	TSL:1	c.803C>T	p.Ser268Leu	missense	Exon 4 of 6	ENSP00000404049.2	Q9UL01
	DSE	ENST00000359564.3	TSL:1	c.803C>T	p.Ser268Leu	missense	Exon 4 of 5	ENSP00000352567.3	A0A2U3TZJ0

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ClinVar

ClinVar submissions

Significance: Pathogenic

Revision: no assertion criteria provided

Pathogenic	VUS	Benign	Condition
1	-	-	Ehlers-Danlos syndrome, musculocontractural type 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.95
BayesDel_addAF	Pathogenic	0.24	D
BayesDel_noAF	Uncertain	0.11
CADD	Pathogenic	28
DANN	Pathogenic	1.0
DEOGEN2	Uncertain	0.74	D
Eigen	Pathogenic	0.78
Eigen_PC	Pathogenic	0.81
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.97	D
M_CAP	Pathogenic	0.39	D
MetaRNN	Uncertain	0.72	D
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		7.9
PrimateAI	Uncertain	0.78	T
PROVEAN	Benign	-2.0	N
REVEL	Uncertain	0.45
Sift	Benign	0.38	T
Sift4G	Uncertain	0.0040	D
Varity_R		0.53
gMVP		0.93
Mutation Taster		=2/98	disease causing (ClinVar)

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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs398122361; hg19: chr6-116752249;