16-69366844-C-G

Variant names:

• chr16-69366844-C-G
• rs372828670
• NM_005652.5:c.1303G>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_005652.5(TERF2):​c.1303G>C​(p.Val435Leu) 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. 15/19 in silico tools predict 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. V435I) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 32)
• Consequence: TERF2 NM_005652.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.433
• Publications: 0 publications found

Genes affected

TERF2 (HGNC:11729): (telomeric repeat binding factor 2) This gene encodes a telomere specific protein, TERF2, which is a component of the telomere nucleoprotein complex. This protein is present at telomeres in metaphase of the cell cycle, is a second negative regulator of telomere length and plays a key role in the protective activity of telomeres. While having similar telomere binding activity and domain organization, TERF2 differs from TERF1 in that its N terminus is basic rather than acidic. [provided by RefSeq, Jul 2008]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.06394461).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005652.5. 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
	TERF2	NM_005652.5	MANE Select	c.1303G>C	p.Val435Leu	missense	Exon 7 of 10	NP_005643.2	Q15554-3

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	TERF2	ENST00000254942.8	TSL:1 MANE Select	c.1303G>C	p.Val435Leu	missense	Exon 7 of 10	ENSP00000254942.3	Q15554-3
	TERF2	ENST00000903039.1		c.1303G>C	p.Val435Leu	missense	Exon 7 of 10	ENSP00000573098.1
	TERF2	ENST00000966429.1		c.1300G>C	p.Val434Leu	missense	Exon 7 of 10	ENSP00000636488.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.082
BayesDel_addAF	Benign	-0.21	T
BayesDel_noAF	Benign	-0.54
CADD	Benign	5.1
DANN	Benign	0.74
DEOGEN2	Benign	0.15	T
Eigen	Benign	-0.99
Eigen_PC	Benign	-1.0
FATHMM_MKL	Benign	0.38	N
LIST_S2	Benign	0.77	T
M_CAP	Benign	0.0043	T
MetaRNN	Benign	0.064	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.8	L
PhyloP100		0.43
PrimateAI	Benign	0.28	T
REVEL	Benign	0.021
Sift4G	Benign	0.32	T
Vest4		0.071
MVP		0.35
ClinPred		0.11	T
GERP RS		0.73
Varity_R		0.040
gMVP		0.16

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.060		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: rs372828670; hg19: chr16-69400747;