2-164694574-C-G

Variant names:

• chr2-164694574-C-G
• rs756784317
• NM_001365672.2:c.2818G>C

Variant summary

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

The NM_001365672.2(COBLL1):​c.2818G>C​(p.Gly940Arg) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,642 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 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. G940S) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: COBLL1 NM_001365672.2 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.353
• Publications: 0 publications found

Genes affected

COBLL1 (HGNC:23571): (cordon-bleu WH2 repeat protein like 1) Enables cadherin binding activity. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

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=0.06348795).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001365672.2. 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
	COBLL1	NM_001365672.2	MANE Select	c.2818G>C	p.Gly940Arg	missense	Exon 12 of 14	NP_001352601.1	Q53SF7-4
	COBLL1	NM_001278458.2		c.3133G>C	p.Gly1045Arg	missense	Exon 15 of 17	NP_001265387.1	A0A0D9SG04
	COBLL1	NM_001278460.2		c.2956G>C	p.Gly986Arg	missense	Exon 12 of 14	NP_001265389.1	A0A0X1KG75

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	COBLL1	ENST00000652658.2	MANE Select	c.2818G>C	p.Gly940Arg	missense	Exon 12 of 14	ENSP00000498242.1	Q53SF7-4
	COBLL1	ENST00000409184.8	TSL:1	c.2956G>C	p.Gly986Arg	missense	Exon 12 of 14	ENSP00000387326.5	A0A0X1KG75
	COBLL1	ENST00000342193.8	TSL:1	c.2932G>C	p.Gly978Arg	missense	Exon 12 of 14	ENSP00000341360.4	Q53SF7-3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461642 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 727120

African (AFR) AF: 0.00 AC: 0 AN: 33466

American (AMR) AF: 0.00 AC: 0 AN: 44678

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39698

South Asian (SAS) AF: 0.00 AC: 0 AN: 86252

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53398

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

European-Non Finnish (NFE) AF: 0.00000180 AC: 2 AN: 1111884

Other (OTH) AF: 0.00 AC: 0 AN: 60382

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	-0.36	T
BayesDel_noAF	Benign	-0.75
CADD	Benign	0.060
DANN	Benign	0.59
DEOGEN2	Benign	0.0043	T
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.041	N
LIST_S2	Benign	0.48	T
M_CAP	Benign	0.0038	T
MetaRNN	Benign	0.063	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.0	N
PhyloP100		-0.35
PrimateAI	Benign	0.26	T
PROVEAN	Benign	-1.5	N
REVEL	Benign	0.021
Sift	Benign	0.080	T
Sift4G	Benign	0.11	T
Polyphen		0.20	B
Vest4		0.048
MutPred		0.28		Loss of sheet (P = 0.0104)
MVP		0.25
MPC		0.057
ClinPred		0.083	T
GERP RS		2.6
Varity_R		0.040
gMVP		0.11
Mutation Taster		=100/0	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

dbSNP: rs756784317; hg19: chr2-165551084;