rs768517440

Variant names:

Variant summary

Our verdict is Benign. Variant got -11 ACMG points: 0P and 11B. BP4_ModerateBP6BS1BS2

The NM_005677.4(COLQ):c.167C>T(p.Pro56Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000173 in 1,614,104 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00047 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00014 ( 2 hom. )

Consequence

COLQ
NM_005677.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 5.76

Variant links:

Genes affected

COLQ (HGNC:2226): (collagen like tail subunit of asymmetric acetylcholinesterase) This gene encodes the subunit of a collagen-like molecule associated with acetylcholinesterase in skeletal muscle. Each molecule is composed of three identical subunits. Each subunit contains a proline-rich attachment domain (PRAD) that binds an acetylcholinesterase tetramer to anchor the catalytic subunit of the enzyme to the basal lamina. Mutations in this gene are associated with endplate acetylcholinesterase deficiency. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

COLQ links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -11 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.19812858).

BP6

Variant 3-15489577-G-A is Benign according to our data. Variant chr3-15489577-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 536246.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000466 (71/152212) while in subpopulation AMR AF= 0.00367 (56/15276). AF 95% confidence interval is 0.0029. There are 1 homozygotes in gnomad4. There are 47 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAdExome4 at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
COLQ	NM_005677.4 link	c.167C>T	p.Pro56Leu	missense_variant	Exon 2 of 17	ENST00000383788.10	NP_005668.2	Q9Y215-1
COLQ	NM_080538.2 link	c.137C>T	p.Pro46Leu	missense_variant	Exon 2 of 17		NP_536799.1	Q9Y215-2
COLQ	NM_080539.4 link	c.167C>T	p.Pro56Leu	missense_variant	Exon 2 of 16		NP_536800.2	Q9Y215-3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
COLQ	ENST00000383788.10 link	c.167C>T	p.Pro56Leu	missense_variant	Exon 2 of 17	1	NM_005677.4	ENSP00000373298.3		Q9Y215-1
COLQ	ENST00000603808.5 link	c.167C>T	p.Pro56Leu	missense_variant	Exon 2 of 17	1		ENSP00000474271.1		A0A0C4DGS2

Frequencies

GnomAD3 genomes

AF:

0.000466

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00367

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000956

GnomAD3 exomes

AF:

0.000215

AC:

AN:

251426

Hom.:

AF XY:

0.000162

AC XY:

AN XY:

135880

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00119

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000114

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000142

AC:

208

AN:

1461892

Hom.:

Cov.:

AF XY:

0.000133

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0000597

Gnomad4 AMR exome

AF:

0.000961

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000141

Gnomad4 OTH exome

AF:

0.0000993

GnomAD4 genome

AF:

0.000466

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000632

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00367

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.000956

Alfa

AF:

0.0000823

Hom.:

Bravo

AF:

0.000408

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Congenital myasthenic syndrome 5

Uncertain:1Benign:1

May 28, 2019

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Dec 12, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Uncertain:1

Sep 09, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.167C>T (p.P56L) alteration is located in exon 2 (coding exon 2) of the COLQ gene. This alteration results from a C to T substitution at nucleotide position 167, causing the proline (P) at amino acid position 56 to be replaced by a leucine (L). 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

Benign

0.12

BayesDel_addAF

Benign

-0.069

BayesDel_noAF

Uncertain

0.080

CADD

Uncertain

DANN

Benign

0.71

DEOGEN2

Uncertain

0.51

D;.;.;.;.

Eigen

Uncertain

0.50

Eigen_PC

Uncertain

0.41

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.90

D;D;D;T;T

M_CAP

Pathogenic

0.49

MetaRNN

Benign

0.20

T;T;T;T;T

MetaSVM

Pathogenic

0.85

MutationAssessor

Uncertain

2.4

M;.;.;M;.

PrimateAI

Uncertain

0.60

PROVEAN

Uncertain

-2.9

D;N;.;D;.

REVEL

Uncertain

0.59

Sift

Benign

0.062

T;D;.;.;.

Sift4G

Uncertain

0.024

D;D;D;D;D

Polyphen

1.0

D;D;.;D;.

Vest4

0.75

MVP

0.97

MPC

0.51

ClinPred

0.15

GERP RS

5.3

Varity_R

0.35

gMVP

0.43

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

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