Genetic Variant PSIP1:p.Asp499Ala (chr9-15466784-T-G) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_033222.5(PSIP1):c.1496A>C(p.Asp499Ala) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,242 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

PSIP1
NM_033222.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.25

Variant links:

Genes affected

PSIP1 (HGNC:9527): (PC4 and SRSF1 interacting protein 1) Enables DNA-binding transcription factor binding activity; chromatin binding activity; and transcription coactivator activity. Involved in mRNA 5'-splice site recognition and positive regulation of transcription by RNA polymerase II. Located in heterochromatin; nuclear periphery; and nucleoplasm. [provided by Alliance of Genome Resources, Apr 2022]

PSIP1 links:

SNAPC3 (HGNC:11136): (small nuclear RNA activating complex polypeptide 3) Predicted to enable RNA polymerase III type 3 promoter sequence-specific DNA binding activity and bent DNA binding activity. Predicted to contribute to RNA polymerase II cis-regulatory region sequence-specific DNA binding activity and core promoter sequence-specific DNA binding activity. Predicted to be involved in snRNA transcription by RNA polymerase II and snRNA transcription by RNA polymerase III. Located in nuclear body and nucleolus. [provided by Alliance of Genome Resources, Apr 2022]

SNAPC3 links:

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ACMG classification

Classification made for transcript

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=0.103646845).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PSIP1	NM_033222.5 link	c.1496A>C	p.Asp499Ala	missense_variant	Exon 15 of 16	ENST00000380733.9	NP_150091.2	O75475-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PSIP1	ENST00000380733.9 link	c.1496A>C	p.Asp499Ala	missense_variant	Exon 15 of 16	1	NM_033222.5	ENSP00000370109.4		O75475-1
PSIP1	ENST00000380738.8 link	c.1496A>C	p.Asp499Ala	missense_variant	Exon 15 of 16	1		ENSP00000370114.4		O75475-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000120

AC:

AN:

250558

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135454

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000109

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000881

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461242

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726882

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000504

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 21, 2024

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.1496A>C (p.D499A) alteration is located in exon 15 (coding exon 14) of the PSIP1 gene. This alteration results from a A to C substitution at nucleotide position 1496, causing the aspartic acid (D) at amino acid position 499 to be replaced by an alanine (A). 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

0.10

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.47

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.083

T;T

Eigen

Benign

-0.36

Eigen_PC

Benign

-0.19

FATHMM_MKL

Uncertain

0.86

LIST_S2

Benign

0.63

.;T

M_CAP

Benign

0.020

MetaRNN

Benign

0.10

T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

0.69

N;N

PrimateAI

Benign

0.41

PROVEAN

Benign

-1.0

N;N

REVEL

Benign

0.093

Sift

Uncertain

0.0050

D;D

Sift4G

Benign

0.079

T;T

Polyphen

0.0020

B;B

Vest4

0.40

MutPred

0.099

Loss of solvent accessibility (P = 0.0352);Loss of solvent accessibility (P = 0.0352);

MVP

0.33

MPC

0.17

ClinPred

0.19

GERP RS

4.2

Varity_R

0.14

gMVP

0.10

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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