NM_014208.3:c.-28-236T>C

Variant names:

• chr4-87610645-T-C
• rs76131681
• NM_014208.3:c.-28-236T>C

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_Strong BP6_Moderate BS1 BS2

The NM_014208.3(DSPP):​c.-28-236T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0125 in 152,310 control chromosomes in the GnomAD database, including 43 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

• Frequency: Genomes: 𝑓 0.013 (43 hom., cov: 32)
• Consequence: DSPP NM_014208.3 intron
• Clinical Significance: Likely benign criteria provided, single submitter B:1
• Conservation: PhyloP100: 0.657
• Publications: 0 publications found

Genes affected

DSPP (HGNC:3054): (dentin sialophosphoprotein) This gene encodes a member of the small integrin-binding ligand N-linked glycoprotein (SIBLING) family of proteins. The encoded preproprotein is secreted by odontoblasts and proteolytically processed to generate two principal proteins of the dentin extracellular matrix of the tooth, dentin sialoprotein and dentin phosphoprotein. These two protein products may play distinct but related roles in dentin mineralization. Mutations in this gene are associated with dentinogenesis imperfecta and dentin dysplasia. This gene is present in a gene cluster on chromosome 4. Allelic differences due to repeat polymorphisms have been found for this gene. [provided by RefSeq, Jan 2016]

DSPP Gene-Disease associations (from GenCC):

• deafness, autosomal dominant 39, with dentinogenesis imperfecta 1

  Inheritance: AD, Unknown Classification: DEFINITIVE, LIMITED Submitted by: G2P, Labcorp Genetics (formerly Invitae)
• dentinogenesis imperfecta

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• dentinogenesis imperfecta type 2

  Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: G2P, Orphanet
• dentinogenesis imperfecta type 3

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
• dentin dysplasia type I

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• dentin dysplasia type II

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

DMP1-AS1 (HGNC:58144):

ACMG classification

Our verdict: Benign. The variant received -14 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.85).
• BP6: Variant 4-87610645-T-C is Benign according to our data. Variant chr4-87610645-T-C is described in ClinVar as Likely_benign. ClinVar VariationId is 1196544.Status of the report is criteria_provided_single_submitter, 1 stars.
• BS1: Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.0125 (1910/152310) while in subpopulation AFR AF = 0.0437 (1815/41562). AF 95% confidence interval is 0.042. There are 43 homozygotes in GnomAd4. There are 898 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
• BS2: High AC in GnomAd4 at 1910 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014208.3. 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
	DSPP	NM_014208.3	MANE Select	c.-28-236T>C		intron	N/A	NP_055023.2	Q9NZW4
	DMP1-AS1	NR_198971.1		n.367-42112A>G		intron	N/A

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DSPP	ENST00000651931.1	MANE Select	c.-28-236T>C		intron	N/A	ENSP00000498766.1	Q9NZW4
	DMP1-AS1	ENST00000506480.5	TSL:3	n.323-42112A>G		intron	N/A
	DMP1-AS1	ENST00000829286.1		n.357-42112A>G		intron	N/A

Frequencies

GnomAD3 genomes AF: 0.0125 AC: 1907 AN: 152192 Hom.: 43 Cov.: 32

Gnomad AFR AF: 0.0437

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00432

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000414

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00633

Gnomad NFE AF: 0.000147

Gnomad OTH AF: 0.00716

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.0125 AC: 1910 AN: 152310 Hom.: 43 Cov.: 32 AF XY: 0.0121 AC XY: 898 AN XY: 74492

African (AFR) AF: 0.0437 AC: 1815 AN: 41562

American (AMR) AF: 0.00432 AC: 66 AN: 15286

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5188

South Asian (SAS) AF: 0.000414 AC: 2 AN: 4832

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

Middle Eastern (MID) AF: 0.00680 AC: 2 AN: 294

European-Non Finnish (NFE) AF: 0.000147 AC: 10 AN: 68024

Other (OTH) AF: 0.00709 AC: 15 AN: 2116

Alfa AF: 0.0107 Hom.: 6

Bravo AF: 0.0143

Asia WGS AF: 0.00375 AC: 13 AN: 3478

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	-	1	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.85
CADD	Benign	6.4
DANN	Benign	0.69
PhyloP100		0.66
Mutation Taster		=100/0	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs76131681; hg19: chr4-88531797;