8-104349138-G-T

Variant names:

• chr8-104349138-G-T
• rs769902138
• NM_030788.4:c.586G>T

Variant summary

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

The NM_030788.4(DCSTAMP):​c.586G>T​(p.Val196Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000124 in 1,614,060 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. V196I) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DCSTAMP NM_030788.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.39
• Publications: 1 publications found

Genes affected

DCSTAMP (HGNC:18549): (dendrocyte expressed seven transmembrane protein) This gene encodes a seven-pass transmembrane protein that is primarily expressed in dendritic cells. The encoded protein is involved in a range of immunological functions carried out by dendritic cells. This protein plays a role in osteoclastogenesis and myeloid differentiation. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2012]

DPYS (HGNC:3013): (dihydropyrimidinase) Dihydropyrimidinase catalyzes the conversion of 5,6-dihydrouracil to 3-ureidopropionate in pyrimidine metabolism. Dihydropyrimidinase is expressed at a high level in liver and kidney as a major 2.5-kb transcript and a minor 3.8-kb transcript. Defects in the DPYS gene are linked to dihydropyrimidinuria. [provided by RefSeq, Jul 2008]

DPYS Gene-Disease associations (from GenCC):

• dihydropyrimidinuria

  Inheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030788.4. 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
	DCSTAMP	NM_030788.4	MANE Select	c.586G>T	p.Val196Phe	missense	Exon 2 of 4	NP_110415.1	Q9H295-1
	DCSTAMP	NM_001257317.1		c.586G>T	p.Val196Phe	missense	Exon 2 of 3	NP_001244246.1	Q9H295-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DCSTAMP	ENST00000297581.2	TSL:1 MANE Select	c.586G>T	p.Val196Phe	missense	Exon 2 of 4	ENSP00000297581.2	Q9H295-1
	DCSTAMP	ENST00000517991.5	TSL:1	c.586G>T	p.Val196Phe	missense	Exon 1 of 2	ENSP00000428869.1	Q9H295-2
	DCSTAMP	ENST00000622554.1	TSL:5	c.586G>T	p.Val196Phe	missense	Exon 2 of 3	ENSP00000480546.1	Q9H295-2

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152220 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000207

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461840 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727222

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

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

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

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53386

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111994

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152220 Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1 AN XY: 74368

African (AFR) AF: 0.00 AC: 0 AN: 41452

American (AMR) AF: 0.00 AC: 0 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5198

South Asian (SAS) AF: 0.000207 AC: 1 AN: 4836

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68040

Other (OTH) AF: 0.00 AC: 0 AN: 2090

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Benign	-0.017	T
BayesDel_noAF	Benign	-0.26
CADD	Benign	18
DANN	Uncertain	0.98
DEOGEN2	Benign	0.22	T
Eigen	Benign	-0.78
Eigen_PC	Benign	-0.93
FATHMM_MKL	Benign	0.23	N
LIST_S2	Benign	0.73	T
M_CAP	Benign	0.020	T
MetaRNN	Uncertain	0.45	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.5	M
PhyloP100		2.4
PrimateAI	Benign	0.28	T
PROVEAN	Benign	-0.92	N
REVEL	Benign	0.28
Sift	Uncertain	0.0050	D
Sift4G	Uncertain	0.0070	D
Polyphen		0.97	D
Vest4		0.52
MutPred		0.58		Loss of disorder (P = 0.1949)
MVP		0.24
MPC		0.43
ClinPred		0.55	D
GERP RS		1.7
Varity_R		0.078
gMVP		0.75
Mutation Taster		=87/13	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: rs769902138; hg19: chr8-105361366;