NM_001387751.1:c.281C>T

Variant names:

• chr8-22069047-C-T
• rs200453963
• NM_001387751.1:c.281C>T

Variant summary

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

The NM_001387751.1(DMTN):​c.281C>T​(p.Pro94Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000124 in 1,612,570 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. P94T) has been classified as Uncertain significance.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: DMTN NM_001387751.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.04
• Publications: 0 publications found

Genes affected

DMTN (HGNC:3382): (dematin actin binding protein) The protein encoded by this gene is an actin binding and bundling protein that plays a structural role in erythrocytes, by stabilizing and attaching the spectrin/actin cytoskeleton to the erythrocyte membrane in a phosphorylation-dependent manner. This protein contains a core domain in the N-terminus, and a headpiece domain in the C-terminus that binds F-actin. When purified from erythrocytes, this protein exists as a trimer composed of two 48 kDa polypeptides and a 52 kDa polypeptide. The different subunits arise from alternative splicing in the 3' coding region, where the headpiece domain is located. Disruption of this gene has been correlated with the autosomal dominant Marie Unna hereditary hypotrichosis disease, while loss of heterozygosity of this gene is thought to play a role in prostate cancer progression. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Nov 2014]

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=0.3289609).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001387751.1. 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
	DMTN	NM_001387751.1	MANE Select	c.281C>T	p.Pro94Leu	missense	Exon 5 of 16	NP_001374680.1	Q08495-1
	DMTN	NM_001114135.5		c.281C>T	p.Pro94Leu	missense	Exon 5 of 16	NP_001107607.1	Q08495-1
	DMTN	NM_001114136.3		c.281C>T	p.Pro94Leu	missense	Exon 5 of 16	NP_001107608.1	Q08495-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DMTN	ENST00000358242.6	TSL:5 MANE Select	c.281C>T	p.Pro94Leu	missense	Exon 5 of 16	ENSP00000350977.3	Q08495-1
	DMTN	ENST00000265800.9	TSL:5	c.281C>T	p.Pro94Leu	missense	Exon 5 of 16	ENSP00000265800.5	Q08495-1
	DMTN	ENST00000432128.6	TSL:5	c.281C>T	p.Pro94Leu	missense	Exon 5 of 16	ENSP00000416111.1	Q08495-1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152154 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000654

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000401 AC: 1 AN: 249502 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000293

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460416 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726532

African (AFR) AF: 0.00 AC: 0 AN: 33404

American (AMR) AF: 0.0000224 AC: 1 AN: 44582

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26058

East Asian (EAS) AF: 0.00 AC: 0 AN: 39548

South Asian (SAS) AF: 0.00 AC: 0 AN: 86096

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5756

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111244

Other (OTH) AF: 0.00 AC: 0 AN: 60318

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152154 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74326

African (AFR) AF: 0.00 AC: 0 AN: 41414

American (AMR) AF: 0.0000654 AC: 1 AN: 15284

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5180

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10626

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68036

Other (OTH) AF: 0.00 AC: 0 AN: 2092

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.31
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.026	T
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.58
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D
M_CAP	Benign	0.016	T
MetaRNN	Benign	0.33	T
MetaSVM	Benign	-0.95	T
MutationAssessor	Uncertain	2.6	M
PhyloP100		6.0
PrimateAI	Uncertain	0.66	T
PROVEAN	Uncertain	-2.8	D
REVEL	Benign	0.14
Sift	Benign	0.079	T
Sift4G	Uncertain	0.016	D
Polyphen		0.94	P
Vest4		0.51
MutPred		0.29		Loss of glycosylation at P94 (P = 0.0018)
MVP		0.35
MPC		0.34
ClinPred		0.95	D
GERP RS		5.0
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.29
gMVP		0.55
Mutation Taster		=53/47	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		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: rs200453963; hg19: chr8-21926558;