20-20045441-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001278628.2(CRNKL1):​c.668G>A​(p.Arg223His) variant causes a missense change. The variant allele was found at a frequency of 0.0000217 in 1,612,578 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: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000021 ( 0 hom. )

Consequence

CRNKL1
NM_001278628.2 missense

Scores

2
6
11

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.01
Variant links:
Genes affected
CRNKL1 (HGNC:15762): (crooked neck pre-mRNA splicing factor 1) The crooked neck (crn) gene of Drosophila is essential for embryogenesis and is thought to be involved in cell cycle progression and pre-mRNA splicing. A protein encoded by this human locus has been found to localize to pre-mRNA splicing complexes in the nucleus and is necessary for pre-mRNA splicing. Alternatively spliced transcript variants have been described. [provided by RefSeq, Jul 2013]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.23046634).
BS2
High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
CRNKL1NM_001278628.2 linkuse as main transcriptc.668G>A p.Arg223His missense_variant 6/14 ENST00000536226.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
CRNKL1ENST00000536226.2 linkuse as main transcriptc.668G>A p.Arg223His missense_variant 6/141 NM_001278628.2 P1Q9BZJ0-2

Frequencies

GnomAD3 genomes
AF:
0.0000330
AC:
5
AN:
151490
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000486
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000660
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000193
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
250890
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135624
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000545
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000264
Gnomad OTH exome
AF:
0.000164
GnomAD4 exome
AF:
0.0000205
AC:
30
AN:
1460970
Hom.:
0
Cov.:
31
AF XY:
0.0000179
AC XY:
13
AN XY:
726816
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000216
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000330
AC:
5
AN:
151608
Hom.:
0
Cov.:
32
AF XY:
0.0000270
AC XY:
2
AN XY:
74036
show subpopulations
Gnomad4 AFR
AF:
0.0000485
Gnomad4 AMR
AF:
0.0000659
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000193
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000282
Hom.:
0
Bravo
AF:
0.0000151
ExAC
AF:
0.0000247
AC:
3
Asia WGS
AF:
0.000289
AC:
1
AN:
3478

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 submitterclinical testingAmbry GeneticsOct 22, 2021The c.1151G>A (p.R384H) alteration is located in exon 7 (coding exon 7) of the CRNKL1 gene. This alteration results from a G to A substitution at nucleotide position 1151, causing the arginine (R) at amino acid position 384 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
0.12
BayesDel_addAF
Benign
-0.19
T
BayesDel_noAF
Benign
-0.34
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;T;.
Eigen
Benign
0.18
Eigen_PC
Uncertain
0.35
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.96
D;D;D
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.23
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
.;M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Uncertain
-3.4
D;D;D
REVEL
Benign
0.20
Sift
Benign
0.034
D;D;D
Sift4G
Uncertain
0.010
D;D;D
Polyphen
0.086
.;B;.
Vest4
0.33
MutPred
0.67
.;Loss of MoRF binding (P = 0.0084);.;
MVP
0.46
MPC
0.36
ClinPred
0.73
D
GERP RS
5.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.28
gMVP
0.57

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.

Other links and lift over

dbSNP: rs569744749; hg19: chr20-20026085; API