Genetic Variant COLQ:c.*425C>T (chr3-15451219-G-A) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_005677.4(COLQ):c.*425C>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000152 in 262,312 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 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000018 ( 0 hom. )

Consequence

COLQ
NM_005677.4 3_prime_UTR

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: -3.00

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

congenital myasthenic syndrome 5
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, PanelApp Australia

COLQ links:

ENSG00000293553 (HGNC:):

ENSG00000293553 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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 (BayesDel_noAF=-0.88).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005677.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
COLQ	NM_005677.4	MANE Select	c.*425C>T	3_prime_UTR	Exon 17 of 17	NP_005668.2
COLQ	NM_080538.2		c.*425C>T	3_prime_UTR	Exon 17 of 17	NP_536799.1	Q9Y215-2
COLQ	NM_080539.4		c.*425C>T	3_prime_UTR	Exon 16 of 16	NP_536800.2	Q9Y215-3

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein	UniProt
COLQ	ENST00000383788.10	TSL:1 MANE Select	c.*425C>T	3_prime_UTR	Exon 17 of 17	ENSP00000373298.3	Q9Y215-1
ENSG00000293553	ENST00000629729.3	TSL:5	n.*291+226C>T	intron	N/A	ENSP00000518887.1	A0AAA9YHP9
COLQ	ENST00000874202.1		c.*425C>T	3_prime_UTR	Exon 17 of 17	ENSP00000544261.1

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

152072

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.000288

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.0000181

AC:

AN:

110240

Hom.:

Cov.:

AF XY:

0.0000172

AC XY:

AN XY:

58030

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

4298

American (AMR)

AF:

0.00

AC:

AN:

6500

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

2766

East Asian (EAS)

AF:

0.00

AC:

AN:

6370

South Asian (SAS)

AF:

0.00

AC:

AN:

15416

European-Finnish (FIN)

AF:

0.00

AC:

AN:

4972

Middle Eastern (MID)

AF:

0.00

AC:

AN:

418

European-Non Finnish (NFE)

AF:

0.0000157

AC:

AN:

63748

Other (OTH)

AF:

0.000174

AC:

AN:

5752

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.600

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000132

AC:

AN:

152072

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74282

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41412

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.000288

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5194

South Asian (SAS)

AF:

0.00

AC:

AN:

4784

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10614

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68012

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.450

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.0000189

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

Congenital myasthenic syndrome 5 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.88

CADD

Benign

2.2

(source)

DANN

Benign

0.60

PhyloP100

-3.0

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over