16-84838702-G-T

Position:

• chr16-84838702-G-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2 BP4

The NM_031476.4(CRISPLD2):​c.207G>T​(p.Gln69His) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (no stars).

• Frequency: Genomes: not found (cov: 33)
• Consequence: CRISPLD2 NM_031476.4 missense
• Clinical Significance: Uncertain significance no assertion criteria provided U:1
• Conservation: PhyloP100: 1.25

Genes affected

CRISPLD2 (HGNC:25248): (cysteine rich secretory protein LCCL domain containing 2) Predicted to enable glycosaminoglycan binding activity. Involved in face morphogenesis. Located in transport vesicle. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

ACMG classification

Verdict is Uncertain_significance. Variant got 1 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.39287832).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CRISPLD2	NM_031476.4	c.207G>T	p.Gln69His	missense_variant	2/15	ENST00000262424.10	NP_113664.1
CRISPLD2	XM_005256190.2	c.207G>T	p.Gln69His	missense_variant	3/16		XP_005256247.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CRISPLD2	ENST00000262424.10	c.207G>T	p.Gln69His	missense_variant	2/15	1	NM_031476.4	ENSP00000262424	P4
	ENST00000648152.1	n.856+6366C>A		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD3 exomes AF: 0.00000400 AC: 1 AN: 250222 Hom.: 0 AF XY: 0.00 AC XY: 0 AN XY: 135372

Gnomad AFR exome AF: 0.00

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: 0.000163

GnomAD4 exome Cov.: 33

GnomAD4 genome Cov.: 33

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: no assertion criteria provided

Submissions by phenotype

CRISPLD2-related disorder Uncertain:1

Uncertain significance, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 27, 2023

The CRISPLD2 c.207G>T variant is predicted to result in the amino acid substitution p.Gln69His. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0% of alleles in individuals of African descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.44
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.43
CADD	Benign	23
DANN	Uncertain	0.99
DEOGEN2	Benign	0.031	T;T;.;.
Eigen	Uncertain	0.55
Eigen_PC	Uncertain	0.53
FATHMM_MKL	Uncertain	0.87	D
LIST_S2	Benign	0.84	T;D;D;D
M_CAP	Benign	0.029	D
MetaRNN	Benign	0.39	T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Uncertain	2.4	M;.;M;M
MutationTaster	Benign	1.0	D;D;D;D
PrimateAI	Benign	0.39	T
PROVEAN	Uncertain	-3.3	D;D;D;D
REVEL	Benign	0.15
Sift	Uncertain	0.0030	D;D;D;D
Sift4G	Uncertain	0.014	D;D;D;D
Polyphen		0.077	B;.;D;D
Vest4		0.41
MutPred		0.35		Gain of helix (P = 0.132);Gain of helix (P = 0.132);Gain of helix (P = 0.132);Gain of helix (P = 0.132);
MVP		0.45
MPC		0.32
ClinPred		0.95	D
GERP RS		5.3
Varity_R		0.48
gMVP		0.61

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

Other links and lift over

dbSNP: rs750062740; hg19: chr16-84872308;