NM_001077706.3:c.2227C>A

Variant names:

• chr6-138885798-C-A
• rs199963616
• NM_001077706.3:c.2227C>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2 BP4

The NM_001077706.3(ECT2L):​c.2227C>A​(p.Gln743Lys) 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. 17/22 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: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ECT2L NM_001077706.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.38
• Publications: 10 publications found

Genes affected

ECT2L (HGNC:21118): (epithelial cell transforming 2 like) Predicted to enable guanyl-nucleotide exchange factor activity. Predicted to be involved in regulation of catalytic activity. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.2662255).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001077706.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ECT2L	NM_001077706.3	MANE Select	c.2227C>A	p.Gln743Lys	missense	Exon 18 of 22	NP_001071174.1
	ECT2L	NM_001195037.2		c.2227C>A	p.Gln743Lys	missense	Exon 17 of 21	NP_001181966.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ECT2L	ENST00000541398.7	TSL:5 MANE Select	c.2227C>A	p.Gln743Lys	missense	Exon 18 of 22	ENSP00000442307.2
	ECT2L	ENST00000367682.6	TSL:5	c.2227C>A	p.Gln743Lys	missense	Exon 17 of 21	ENSP00000356655.2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00 AC: 0 AN: 248442 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1460902 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 726802

African (AFR) AF: 0.00 AC: 0 AN: 33370

American (AMR) AF: 0.00 AC: 0 AN: 44386

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26098

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86170

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111684

Other (OTH) AF: 0.00 AC: 0 AN: 60332

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.087
BayesDel_addAF	Benign	-0.079	T
BayesDel_noAF	Benign	-0.35
CADD	Benign	16
DANN	Benign	0.82
DEOGEN2	Benign	0.0025	T
Eigen	Benign	-0.44
Eigen_PC	Benign	-0.35
FATHMM_MKL	Benign	0.24	N
LIST_S2	Benign	0.63	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.27	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.4	L
PhyloP100		2.4
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-1.6	N
REVEL	Benign	0.17
Sift	Benign	0.54	T
Sift4G	Benign	0.67	T
Polyphen		0.34	B
Vest4		0.25
MutPred		0.58		Gain of MoRF binding (P = 0.0428)
MVP		0.43
MPC		0.13
ClinPred		0.23	T
GERP RS		5.6
Varity_R		0.23
gMVP		0.41
Mutation Taster		=95/5	polymorphism

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

Other links and lift over

dbSNP: rs199963616; hg19: chr6-139206935; COSMIC: COSV62886949;