Genetic Variant CSRNP1:p.Ala564Thr (chr3-39143135-C-T) – ACMG Classification: Likely_benign (-2 pts)

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_033027.4(CSRNP1):c.1690G>A(p.Ala564Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000415 in 1,613,894 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: 𝑓 0.000039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000042 ( 0 hom. )

Consequence

CSRNP1
NM_033027.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.803

Variant links:

Genes affected

CSRNP1 (HGNC:14300): (cysteine and serine rich nuclear protein 1) This gene encodes a protein that localizes to the nucleus and expression of this gene is induced in response to elevated levels of axin. The Wnt signalling pathway, which is negatively regulated by axin, is important in axis formation in early development and impaired regulation of this signalling pathway is often involved in tumors. A decreased level of expression of this gene in tumors compared to the level of expression in their corresponding normal tissues suggests that this gene product has a tumor suppressor function. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

CSRNP1 links:

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ACMG classification

Classification made for transcript

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=0.040216982).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
CSRNP1	NM_033027.4 link	c.1690G>A	p.Ala564Thr	missense_variant	Exon 5 of 5	ENST00000273153.10	NP_149016.2	Q96S65A0A024R2U8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
CSRNP1	ENST00000273153.10 link	c.1690G>A	p.Ala564Thr	missense_variant	Exon 5 of 5	1	NM_033027.4	ENSP00000273153.5		Q96S65
CSRNP1	ENST00000514182.1 link	c.1690G>A	p.Ala564Thr	missense_variant	Exon 5 of 5	1		ENSP00000422532.1		Q96S65

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152178

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000942

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000359

AC:

AN:

250784

Hom.:

AF XY:

0.0000663

AC XY:

AN XY:

135708

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000289

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.0000462

Gnomad NFE exome

AF:

0.0000529

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000417

AC:

AN:

1461598

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

727046

show subpopulations

Gnomad4 AFR exome

AF:

0.000508

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000116

Gnomad4 FIN exome

AF:

0.0000374

Gnomad4 NFE exome

AF:

0.0000252

Gnomad4 OTH exome

AF:

0.000199

GnomAD4 genome

AF:

0.0000394

AC:

AN:

152296

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74470

show subpopulations

Gnomad4 AFR

AF:

0.0000722

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.0000942

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000489

Hom.:

Bravo

AF:

0.0000113

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000577

AC:

Asia WGS

AF:

0.00144

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Sep 08, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1690G>A (p.A564T) alteration is located in exon 5 (coding exon 4) of the CSRNP1 gene. This alteration results from a G to A substitution at nucleotide position 1690, causing the alanine (A) at amino acid position 564 to be replaced by a threonine (T). 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

0.071

BayesDel_addAF

Benign

-0.46

BayesDel_noAF

Benign

-0.76

CADD

Benign

DANN

Benign

0.84

DEOGEN2

Benign

0.085

T;T

Eigen

Benign

-0.99

Eigen_PC

Benign

-0.98

FATHMM_MKL

Benign

0.44

LIST_S2

Benign

0.57

.;T

M_CAP

Benign

0.010

MetaRNN

Benign

0.040

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.4

L;L

PrimateAI

Benign

0.23

PROVEAN

Benign

0.090

N;N

REVEL

Benign

0.059

Sift

Benign

0.62

T;T

Sift4G

Benign

0.29

T;T

Polyphen

0.023

B;B

Vest4

0.020

MVP

0.14

MPC

0.24

ClinPred

0.037

GERP RS

-0.63

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.032

gMVP

0.18

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