17-75828040-T-G

Position:

• chr17-75828040-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_199242.3(UNC13D):​c.3198A>C​(p.Glu1066Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E1066E) has been classified as Benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: UNC13D NM_199242.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.0140

Genes affected

UNC13D (HGNC:23147): (unc-13 homolog D) This gene encodes a protein that is a member of the UNC13 family, containing similar domain structure as other family members but lacking an N-terminal phorbol ester-binding C1 domain present in other Munc13 proteins. The protein appears to play a role in vesicle maturation during exocytosis and is involved in regulation of cytolytic granules secretion. Mutations in this gene are associated with familial hemophagocytic lymphohistiocytosis type 3, a genetically heterogeneous, rare autosomal recessive disorder. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
UNC13D	NM_199242.3	c.3198A>C	p.Glu1066Asp	missense_variant	32/32	ENST00000207549.9	NP_954712.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
UNC13D	ENST00000207549.9	c.3198A>C	p.Glu1066Asp	missense_variant	32/32	1	NM_199242.3	ENSP00000207549	P1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 62

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.14
BayesDel_addAF	Uncertain	0.044	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	21
DANN	Uncertain	1.0
DEOGEN2	Benign	0.24	T;.
Eigen	Benign	0.073
Eigen_PC	Benign	0.035
FATHMM_MKL	Benign	0.72	D
LIST_S2	Uncertain	0.87	D;D
M_CAP	Benign	0.039	D
MetaRNN	Uncertain	0.43	T;T
MetaSVM	Benign	-0.36	T
MutationAssessor	Pathogenic	2.9	M;M
MutationTaster	Benign	0.000073	P;P
PrimateAI	Uncertain	0.56	T
PROVEAN	Benign	-2.2	N;N
REVEL	Uncertain	0.38
Sift	Uncertain	0.0060	D;D
Sift4G	Uncertain	0.042	D;D
Polyphen		0.99	D;.
Vest4		0.10
MutPred		0.29		Loss of helix (P = 0.028);Loss of helix (P = 0.028);
MVP		0.67
MPC		0.099
ClinPred		0.96	D
GERP RS		3.0
Varity_R		0.14
gMVP		0.49

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

LitVar

Other links and lift over

dbSNP: rs7210574; hg19: chr17-73824121;