Genetic Variant COBLL1:p.Arg874Thr (chr2-164694771-C-G) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_001365672.2(COBLL1):c.2621G>C(p.Arg874Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000167 in 1,613,746 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

COBLL1
NM_001365672.2 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.94

Variant links:

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]

COBLL1 links:

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ACMG classification

Classification made for transcript

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=0.3801388).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COBLL1	NM_001365672.2 link	c.2621G>C	p.Arg874Thr	missense_variant	Exon 12 of 14	ENST00000652658.2	NP_001352601.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COBLL1	ENST00000652658.2 link	c.2621G>C	p.Arg874Thr	missense_variant	Exon 12 of 14		NM_001365672.2	ENSP00000498242.1		Q53SF7-4

Frequencies

GnomAD3 genomes

AF:

0.0000329

AC:

AN:

152058

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000964

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000800

AC:

AN:

250130

Hom.:

AF XY:

0.0000665

AC XY:

AN XY:

135266

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000151

AC:

AN:

1461570

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727080

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000453

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.0000329

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000672

AC XY:

AN XY:

74382

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000966

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000378

Hom.:

Bravo

AF:

0.0000453

ExAC

AF:

0.0000741

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 27, 2022

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.2735G>C (p.R912T) alteration is located in exon 12 (coding exon 12) of the COBLL1 gene. This alteration results from a G to C substitution at nucleotide position 2735, causing the arginine (R) at amino acid position 912 to be replaced by a threonine (T). 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

Pathogenic

0.93

BayesDel_addAF

Benign

-0.14

BayesDel_noAF

Uncertain

-0.020

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.30

T;.;.;T

Eigen

Pathogenic

0.75

Eigen_PC

Pathogenic

0.75

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.93

D;D;D;D

M_CAP

Benign

0.014

MetaRNN

Benign

0.38

T;T;T;T

MetaSVM

Benign

-0.38

MutationAssessor

Uncertain

2.6

M;.;.;.

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-4.2

D;D;D;.

REVEL

Benign

0.25

Sift

Uncertain

0.0020

D;D;D;.

Sift4G

Uncertain

0.014

D;D;D;D

Polyphen

1.0

D;.;.;.

Vest4

0.92

MVP

0.64

MPC

0.39

ClinPred

0.49

GERP RS

6.0

Varity_R

0.59

gMVP

0.45

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over