8-75012954-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_031461.6(CRISPLD1):c.442T>C(p.Tyr148His) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,798 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: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: CRISPLD1 NM_031461.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.04

Genes affected

CRISPLD1 (HGNC:18206): (cysteine rich secretory protein LCCL domain containing 1) Involved in face morphogenesis. Located in extracellular exosome. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

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=0.2388471).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CRISPLD1	NM_031461.6	c.442T>C	p.Tyr148His	missense_variant	4/15	ENST00000262207.9
CRISPLD1	NM_001286777.2	c.-1T>C		5_prime_UTR_variant	3/13
CRISPLD1	NM_001286778.2	c.-123T>C		5_prime_UTR_variant	3/14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CRISPLD1	ENST00000262207.9	c.442T>C	p.Tyr148His	missense_variant	4/15	1	NM_031461.6	P1
CRISPLD1	ENST00000517786.1	c.-1T>C		5_prime_UTR_variant	3/13	2
CRISPLD1	ENST00000523524.5	c.-123T>C		5_prime_UTR_variant	3/14	2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD3 exomes AF: 0.00000399 AC: 1 AN: 250920 Hom.: 0 AF XY: 0.00000737 AC XY: 1 AN XY: 135614

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: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460798 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726668

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ExAC AF: 0.00000824 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Sep 27, 2022

The c.442T>C (p.Y148H) alteration is located in exon 4 (coding exon 3) of the CRISPLD1 gene. This alteration results from a T to C substitution at nucleotide position 442, causing the tyrosine (Y) at amino acid position 148 to be replaced by a histidine (H). 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	0.20
BayesDel_addAF	Benign	-0.23	T
BayesDel_noAF	Benign	-0.48
Cadd	Uncertain	23
Dann	Uncertain	0.99
DEOGEN2	Benign	0.14	T
Eigen	Benign	-0.065
Eigen_PC	Benign	0.066
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.82	T
M_CAP	Benign	0.014	T
MetaRNN	Benign	0.24	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.3	L
MutationTaster	Benign	1.0	D;D;D
PrimateAI	Uncertain	0.48	T
PROVEAN	Uncertain	-3.1	D
REVEL	Benign	0.096
Sift	Benign	0.067	T
Sift4G	Uncertain	0.053	T
Polyphen		0.032	B
Vest4		0.38
MutPred		0.59		Gain of disorder (P = 0.0223);
MVP		0.58
MPC		0.26
ClinPred		0.80	D
GERP RS		4.1
Varity_R		0.29
gMVP		0.76

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.020		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: rs768182921; hg19: chr8-75925189;