17-44967669-A-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_006688.5(C1QL1):c.380T>G(p.Val127Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000273 in 1,612,990 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

C1QL1
NM_006688.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55

Variant links:

Genes affected

C1QL1 (HGNC:24182): (complement C1q like 1) Predicted to enable signaling receptor binding activity. Predicted to act upstream of or within maintenance of synapse structure; motor learning; and neuron remodeling. Predicted to be located in several cellular components, including climbing fiber; presynapse; and synaptic cleft. Predicted to be part of collagen trimer. [provided by Alliance of Genome Resources, Apr 2022]

C1QL1 links:

NMT1 (HGNC:7857): (N-myristoyltransferase 1) Myristate, a rare 14-carbon saturated fatty acid, is cotranslationally attached by an amide linkage to the N-terminal glycine residue of cellular and viral proteins with diverse functions. N-myristoyltransferase (NMT; EC 2.3.1.97) catalyzes the transfer of myristate from CoA to proteins. N-myristoylation appears to be irreversible and is required for full expression of the biologic activities of several N-myristoylated proteins, including the alpha subunit of the signal-transducing guanine nucleotide-binding protein (G protein) GO (GNAO1; MIM 139311) (Duronio et al., 1992 [PubMed 1570339]).[supplied by OMIM, Nov 2008]

NMT1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.20194319).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
C1QL1	NM_006688.5 linkuse as main transcript	c.380T>G	p.Val127Gly	missense_variant	1/2	ENST00000253407.4

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
C1QL1	ENST00000253407.4 linkuse as main transcript	c.380T>G	p.Val127Gly	missense_variant	1/2	1	NM_006688.5	P1
NMT1	ENST00000678938.1 linkuse as main transcript	c.-110+9607A>C		intron_variant					P30419-2

Frequencies

GnomAD3 genomes

AF:

0.000178

AC:

AN:

151852

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000629

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.00

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000201

AC:

AN:

248852

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

134978

show subpopulations

Gnomad AFR exome

AF:

0.000247

Gnomad AMR exome

AF:

0.00

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:

0.00

Gnomad OTH exome

AF:

0.000164

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461138

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

726884

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.000149

GnomAD4 genome

AF:

0.000178

AC:

AN:

151852

Hom.:

Cov.:

AF XY:

0.000148

AC XY:

AN XY:

74184

show subpopulations

Gnomad4 AFR

AF:

0.000629

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.000233

Hom.:

Bravo

AF:

0.000196

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 13, 2021

The c.380T>G (p.V127G) alteration is located in exon 1 (coding exon 1) of the C1QL1 gene. This alteration results from a T to G substitution at nucleotide position 380, causing the valine (V) at amino acid position 127 to be replaced by a glycine (G). 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

0.19

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.34

Cadd

Uncertain

Dann

Uncertain

0.99

DEOGEN2

Benign

0.26

Eigen

Benign

0.11

Eigen_PC

Benign

0.18

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.79

M_CAP

Benign

0.027

MetaRNN

Benign

0.20

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.3

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.66

PROVEAN

Benign

-1.4

REVEL

Benign

0.14

Sift

Benign

0.14

Sift4G

Benign

0.38

Polyphen

0.95

Vest4

0.50

MVP

0.25

ClinPred

0.25

GERP RS

4.5

Varity_R

0.23

gMVP

0.48

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