rs142980906

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_005677.4(COLQ):​c.391A>G​(p.Lys131Glu) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.000339 in 1,614,164 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00034 ( 0 hom. )

Consequence

COLQ
NM_005677.4 missense, splice_region

Scores

1
10
7
Splicing: ADA: 0.02528
2

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 4.72

Publications

3 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: Genomics England PanelApp, Labcorp Genetics (formerly Invitae)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 16 curated pathogenic missense variants (we use a threshold of 10). The gene has 5 curated benign missense variants. Gene score misZ: -0.21928 (below the threshold of 3.09). Trascript score misZ: -0.17745 (below the threshold of 3.09). GenCC associations: The gene is linked to congenital myasthenic syndrome 5.
BP4
Computational evidence support a benign effect (MetaRNN=0.21136287).

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

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COLQ
NM_005677.4
MANE Select
c.391A>Gp.Lys131Glu
missense splice_region
Exon 5 of 17NP_005668.2
COLQ
NM_080538.2
c.361A>Gp.Lys121Glu
missense splice_region
Exon 5 of 17NP_536799.1Q9Y215-2
COLQ
NM_080539.4
c.289A>Gp.Lys97Glu
missense splice_region
Exon 4 of 16NP_536800.2Q9Y215-3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
COLQ
ENST00000383788.10
TSL:1 MANE Select
c.391A>Gp.Lys131Glu
missense splice_region
Exon 5 of 17ENSP00000373298.3Q9Y215-1
COLQ
ENST00000603808.5
TSL:1
c.391A>Gp.Lys131Glu
missense splice_region
Exon 5 of 17ENSP00000474271.1A0A0C4DGS2
COLQ
ENST00000874202.1
c.391A>Gp.Lys131Glu
missense splice_region
Exon 5 of 17ENSP00000544261.1

Frequencies

GnomAD3 genomes
AF:
0.000335
AC:
51
AN:
152154
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000121
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000573
Gnomad OTH
AF:
0.000957
GnomAD2 exomes
AF:
0.000247
AC:
62
AN:
251354
AF XY:
0.000258
show subpopulations
Gnomad AFR exome
AF:
0.000123
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.000277
Gnomad NFE exome
AF:
0.000422
Gnomad OTH exome
AF:
0.000326
GnomAD4 exome
AF:
0.000340
AC:
497
AN:
1461892
Hom.:
0
Cov.:
31
AF XY:
0.000338
AC XY:
246
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.0000597
AC:
2
AN:
33480
American (AMR)
AF:
0.000134
AC:
6
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.000393
AC:
21
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.000404
AC:
449
AN:
1112010
Other (OTH)
AF:
0.000298
AC:
18
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.463
Heterozygous variant carriers
0
28
56
83
111
139
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000335
AC:
51
AN:
152272
Hom.:
0
Cov.:
32
AF XY:
0.000282
AC XY:
21
AN XY:
74460
show subpopulations
African (AFR)
AF:
0.000120
AC:
5
AN:
41550
American (AMR)
AF:
0.000262
AC:
4
AN:
15294
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5184
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4826
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10616
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000573
AC:
39
AN:
68012
Other (OTH)
AF:
0.000947
AC:
2
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.502
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<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:
0.000475
Hom.:
0
Bravo
AF:
0.000261
TwinsUK
AF:
0.00
AC:
0
ALSPAC
AF:
0.000778
AC:
3
ESP6500AA
AF:
0.000227
AC:
1
ESP6500EA
AF:
0.000465
AC:
4
ExAC
AF:
0.000181
AC:
22
EpiCase
AF:
0.000545
EpiControl
AF:
0.000474

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
3
-
Congenital myasthenic syndrome 5 (3)
-
2
-
not provided (2)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.62
BayesDel_addAF
Benign
-0.048
T
BayesDel_noAF
Uncertain
0.020
CADD
Pathogenic
29
DANN
Uncertain
0.98
DEOGEN2
Benign
0.29
T
Eigen
Uncertain
0.50
Eigen_PC
Uncertain
0.52
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.93
D
M_CAP
Uncertain
0.23
D
MetaRNN
Benign
0.21
T
MetaSVM
Uncertain
0.63
D
MutationAssessor
Benign
1.5
L
PhyloP100
4.7
PrimateAI
Uncertain
0.75
T
PROVEAN
Benign
-1.2
N
REVEL
Uncertain
0.61
Sift
Benign
0.051
T
Sift4G
Benign
0.20
T
Polyphen
0.99
D
Vest4
0.65
MVP
0.91
MPC
0.14
ClinPred
0.059
T
GERP RS
5.3
Varity_R
0.39
gMVP
0.36
Mutation Taster
=45/55
disease causing

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.025
dbscSNV1_RF
Benign
0.20
SpliceAI score (max)
0.31
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.31
Position offset: -2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs142980906; hg19: chr3-15520486; COSMIC: COSV67524695; COSMIC: COSV67524695; API