17-44967793-C-A

Position:

chr17-44967793-C-A

Variant summary

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

The NM_006688.5(C1QL1):c.256G>T(p.Asp86Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000323 in 1,456,578 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000030 ( 0 hom. )

Consequence

C1QL1
NM_006688.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.15

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=0.17896384).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
C1QL1	NM_006688.5 linkuse as main transcript	c.256G>T	p.Asp86Tyr	missense_variant	1/2	ENST00000253407.4	NP_006679.1	O75973

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
C1QL1	ENST00000253407.4 linkuse as main transcript	c.256G>T	p.Asp86Tyr	missense_variant	1/2	1	NM_006688.5	ENSP00000253407.2		O75973
NMT1	ENST00000678938.1 linkuse as main transcript	c.-110+9731C>A		intron_variant				ENSP00000503621.1		P30419-2

Frequencies

GnomAD3 genomes

AF:

0.0000527

AC:

AN:

151806

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000391

Gnomad SAS

AF:

0.000622

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000918

AC:

AN:

54462

Hom.:

AF XY:

0.0000639

AC XY:

AN XY:

31298

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000707

Gnomad SAS exome

AF:

0.000238

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000299

AC:

AN:

1304662

Hom.:

Cov.:

AF XY:

0.0000296

AC XY:

AN XY:

641120

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000530

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000312

Gnomad4 SAS exome

AF:

0.000181

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000285

Gnomad4 OTH exome

AF:

0.000241

GnomAD4 genome

AF:

0.0000527

AC:

AN:

151916

Hom.:

Cov.:

AF XY:

0.0000943

AC XY:

AN XY:

74256

show subpopulations

Gnomad4 AFR

AF:

0.0000723

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000393

Gnomad4 SAS

AF:

0.000622

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000475

Hom.:

Bravo

AF:

0.0000264

ExAC

AF:

0.0000358

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

Jul 06, 2021

The c.256G>T (p.D86Y) alteration is located in exon 1 (coding exon 1) of the C1QL1 gene. This alteration results from a G to T substitution at nucleotide position 256, causing the aspartic acid (D) at amino acid position 86 to be replaced by a tyrosine (Y). 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

-0.34

BayesDel_noAF

Benign

-0.35

CADD

Benign

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.76

Eigen

Benign

-0.46

Eigen_PC

Benign

-0.41

FATHMM_MKL

Uncertain

0.87

LIST_S2

Benign

0.66

M_CAP

Pathogenic

0.41

MetaRNN

Benign

0.18

MetaSVM

Benign

-0.84

MutationAssessor

Benign

1.1

PrimateAI

Uncertain

0.73

PROVEAN

Benign

-1.9

REVEL

Benign

0.15

Sift

Uncertain

0.020

Sift4G

Benign

0.070

Polyphen

0.0010

Vest4

0.25

MutPred

0.43

Gain of phosphorylation at D86 (P = 0.0081);

MVP

0.42

ClinPred

0.093

GERP RS

2.2

Varity_R

0.24

gMVP

0.34

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