NM_182643.3:c.4449G>T

Variant names:

• chr8-13086307-C-A
• NM_182643.3:c.4449G>T

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_182643.3(DLC1):​c.4449G>T​(p.Met1483Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M1483T) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 33)
• Consequence: DLC1 NM_182643.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.14
• Publications: 0 publications found

Genes affected

DLC1 (HGNC:2897): (DLC1 Rho GTPase activating protein) This gene encodes a GTPase-activating protein (GAP) that is a member of the rhoGAP family of proteins which play a role in the regulation of small GTP-binding proteins. GAP family proteins participate in signaling pathways that regulate cell processes involved in cytoskeletal changes. This gene functions as a tumor suppressor gene in a number of common cancers, including prostate, lung, colorectal, and breast cancers. Multiple transcript variants due to alternative promoters and alternative splicing have been found for this gene.[provided by RefSeq, Apr 2010]

DLC1 Gene-Disease associations (from GenCC):

• congenital heart defects, multiple types

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• colorectal cancer

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: Ambry Genetics

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.12511083).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182643.3. 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
	DLC1	NM_182643.3	MANE Select	c.4449G>T	p.Met1483Ile	missense	Exon 17 of 18	NP_872584.2	Q96QB1-2
	DLC1	NM_001348081.2		c.4449G>T	p.Met1483Ile	missense	Exon 17 of 18	NP_001335010.1	Q96QB1-2
	DLC1	NM_001413124.1		c.4449G>T	p.Met1483Ile	missense	Exon 17 of 18	NP_001400053.1	Q96QB1-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DLC1	ENST00000276297.9	TSL:1 MANE Select	c.4449G>T	p.Met1483Ile	missense	Exon 17 of 18	ENSP00000276297.4	Q96QB1-2
	DLC1	ENST00000358919.6	TSL:1	c.3138G>T	p.Met1046Ile	missense	Exon 13 of 14	ENSP00000351797.2	Q96QB1-1
	DLC1	ENST00000941272.1		c.4449G>T	p.Met1483Ile	missense	Exon 18 of 19	ENSP00000611331.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

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

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.30
BayesDel_addAF	Benign	-0.079	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	19
DANN	Benign	0.38
DEOGEN2	Benign	0.073	T
Eigen	Benign	-0.83
Eigen_PC	Benign	-0.57
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Uncertain	0.88	D
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-0.92	T
MutationAssessor	Benign	-1.6	N
PhyloP100		2.1
PrimateAI	Uncertain	0.52	T
PROVEAN	Benign	1.4	N
REVEL	Benign	0.18
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.014	B
Vest4		0.36
MutPred		0.51		Gain of catalytic residue at L1488 (P = 0.025)
MVP		0.28
MPC		0.028
ClinPred		0.14	T
GERP RS		3.2
Varity_R		0.086
gMVP		0.36
Mutation Taster		=72/27	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

hg19: chr8-12943816;