4-56314055-C-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001393381.1(CRACD):c.553C>G(p.Gln185Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,258 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: CRACD NM_001393381.1 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.873

Genes affected

CRACD (HGNC:29219): (capping protein inhibiting regulator of actin dynamics) Involved in negative regulation of barbed-end actin filament capping. Predicted to be located in cytosol. [provided by Alliance of Genome Resources, Apr 2022]

ACMG classification

Verdict is Likely_benign. Variant got -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.047381192).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
CRACD	NM_001393381.1	c.553C>G	p.Gln185Glu	missense_variant	8/11	ENST00000682029.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
CRACD	ENST00000682029.1	c.553C>G	p.Gln185Glu	missense_variant	8/11		NM_001393381.1	A2

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461258 Hom.: 0 Cov.: 30 AF XY: 0.00000275 AC XY: 2 AN XY: 726924

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: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000270

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

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

May 15, 2023

The c.553C>G (p.Q185E) alteration is located in exon 8 (coding exon 5) of the KIAA1211 gene. This alteration results from a C to G substitution at nucleotide position 553, causing the glutamine (Q) at amino acid position 185 to be replaced by a glutamic acid (E). 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	0.068
BayesDel_addAF	Benign	-0.30	T
BayesDel_noAF	Benign	-0.68
Cadd	Benign	9.2
Dann	Benign	0.46
Eigen	Benign	-0.68
Eigen_PC	Benign	-0.71
FATHMM_MKL	Benign	0.42	N
LIST_S2	Benign	0.67	T;T;.;T;T
M_CAP	Benign	0.0083	T
MetaRNN	Benign	0.047	T;T;T;T;T
MetaSVM	Benign	-1.0	T
MutationTaster	Benign	1.0	N;N;N
PrimateAI	Benign	0.24	T
Polyphen		0.19	.;.;B;B;B
Vest4		0.056, 0.064, 0.065
MutPred		0.094		.;Loss of helix (P = 0.0558);Loss of helix (P = 0.0558);Loss of helix (P = 0.0558);.;
MVP		0.13
MPC		0.66
ClinPred		0.17	T
GERP RS		3.3
Varity_R		0.11
gMVP		0.050

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr4-57180221;