Genetic Variant DMBT1:p.Gly194Cys (chr10-122576695-G-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_001377530.1(DMBT1):c.580G>T(p.Gly194Cys) 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 1,461,460 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DMBT1
NM_001377530.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: -6.42

Variant links:

Genes affected

DMBT1 (HGNC:2926): (deleted in malignant brain tumors 1) Loss of sequences from human chromosome 10q has been associated with the progression of human cancers. This gene was originally isolated based on its deletion in a medulloblastoma cell line. This gene is expressed with transcripts of 6.0, 7.5, and 8.0 kb in fetal lung and with one transcript of 8.0 kb in adult lung, although the 7.5 kb transcript has not been characterized. The encoded protein precursor is a glycoprotein containing multiple scavenger receptor cysteine-rich (SRCR) domains separated by SRCR-interspersed domains (SID). Transcript variant 2 (8.0 kb) has been shown to bind surfactant protein D independently of carbohydrate recognition. This indicates that DMBT1 may not be a classical tumor suppressor gene, but rather play a role in the interaction of tumor cells and the immune system. [provided by RefSeq, Mar 2016]

DMBT1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.17071435).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DMBT1	NM_001377530.1 link	c.580G>T	p.Gly194Cys	missense_variant	Exon 7 of 56	ENST00000338354.10	NP_001364459.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DMBT1	ENST00000338354.10 link	c.580G>T	p.Gly194Cys	missense_variant	Exon 7 of 56	1	NM_001377530.1	ENSP00000342210.4		Q9UGM3-6

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461460

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727022

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.64

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.60

CADD

Benign

0.43

DANN

Benign

0.93

DEOGEN2

Benign

0.034

.;.;.;.;T;.;T

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.6

FATHMM_MKL

Benign

0.013

LIST_S2

Benign

0.43

T;.;.;T;.;T;T

M_CAP

Benign

0.011

MetaRNN

Benign

0.17

T;T;T;T;T;T;T

MetaSVM

Benign

-0.85

MutationAssessor

Uncertain

2.8

M;M;M;M;M;M;M

PrimateAI

Benign

0.30

PROVEAN

Benign

-2.1

N;N;D;N;N;D;.

REVEL

Benign

0.16

Sift

Benign

0.14

T;T;T;T;T;T;.

Sift4G

Uncertain

0.059

T;T;D;T;T;D;T

Polyphen

1.0

D;D;D;D;D;D;D

Vest4

0.19

MutPred

0.68

Loss of disorder (P = 0.064);Loss of disorder (P = 0.064);Loss of disorder (P = 0.064);Loss of disorder (P = 0.064);Loss of disorder (P = 0.064);Loss of disorder (P = 0.064);Loss of disorder (P = 0.064);

MVP

0.44

MPC

0.35

ClinPred

0.23

GERP RS

-9.3

Varity_R

0.26

gMVP

0.35

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

Publications

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over