NM_032564.5:c.705C>G

Variant names:

• chr11-75797228-C-G
• NM_032564.5:c.705C>G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_032564.5(DGAT2):​c.705C>G​(p.Ile235Met) 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. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: DGAT2 NM_032564.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.86

Genes affected

DGAT2 (HGNC:16940): (diacylglycerol O-acyltransferase 2) This gene encodes one of two enzymes which catalyzes the final reaction in the synthesis of triglycerides in which diacylglycerol is covalently bound to long chain fatty acyl-CoAs. The encoded protein catalyzes this reaction at low concentrations of magnesium chloride while the other enzyme has high activity at high concentrations of magnesium chloride. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2011]

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.37370718).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DGAT2	NM_032564.5	c.705C>G	p.Ile235Met	missense_variant	Exon 6 of 8	ENST00000228027.12	NP_115953.2
DGAT2	NM_001253891.2	c.576C>G	p.Ile192Met	missense_variant	Exon 5 of 7		NP_001240820.1
DGAT2	XM_011545304.3	c.615C>G	p.Ile205Met	missense_variant	Exon 6 of 8		XP_011543606.1
DGAT2	XM_047427716.1	c.432C>G	p.Ile144Met	missense_variant	Exon 6 of 8		XP_047283672.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DGAT2	ENST00000228027.12	c.705C>G	p.Ile235Met	missense_variant	Exon 6 of 8	1	NM_032564.5	ENSP00000228027.6

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Apr 12, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.705C>G (p.I235M) alteration is located in exon 6 (coding exon 6) of the DGAT2 gene. This alteration results from a C to G substitution at nucleotide position 705, causing the isoleucine (I) at amino acid position 235 to be replaced by a methionine (M). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.25
BayesDel_addAF	Benign	-0.14	T
BayesDel_noAF	Benign	-0.44
CADD	Uncertain	24
DANN	Uncertain	1.0
DEOGEN2	Benign	0.11	.;T;.;.
Eigen	Uncertain	0.45
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Uncertain	0.83	D
LIST_S2	Uncertain	0.93	D;D;D;D
M_CAP	Benign	0.019	T
MetaRNN	Benign	0.37	T;T;T;T
MetaSVM	Benign	-1.2	T
MutationAssessor	Benign	1.1	.;L;.;.
PrimateAI	Uncertain	0.66	T
PROVEAN	Benign	-1.6	.;N;N;.
REVEL	Benign	0.13
Sift	Uncertain	0.0070	.;D;D;.
Sift4G	Benign	0.085	T;T;T;D
Polyphen		0.93, 0.90	.;P;P;.
Vest4		0.60, 0.63
MutPred		0.65		.;Loss of stability (P = 0.0898);.;.;
MVP		0.70
MPC		0.18
ClinPred		0.60	D
GERP RS		6.0
Varity_R		0.31
gMVP		0.78

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

Publications

No publications associated with this variant yet.

Other links and lift over

hg19: chr11-75508273;