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GeneBe

17-30184764-C-T

Variant summary

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

The NM_032141.4(NSRP1):c.767C>T(p.Ala256Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000837 in 1,613,834 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00044 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

NSRP1
NM_032141.4 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.48
Variant links:
Genes affected
NSRP1 (HGNC:25305): (nuclear speckle splicing regulatory protein 1) Enables mRNA binding activity. Involved in developmental process and regulation of alternative mRNA splicing, via spliceosome. Located in nuclear speck. Part of ribonucleoprotein complex. [provided by Alliance of Genome Resources, Apr 2022]

Genome browser will be placed here

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=0.01095897).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NSRP1NM_032141.4 linkuse as main transcriptc.767C>T p.Ala256Val missense_variant 7/7 ENST00000247026.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NSRP1ENST00000247026.10 linkuse as main transcriptc.767C>T p.Ala256Val missense_variant 7/71 NM_032141.4 P4

Frequencies

GnomAD3 genomes
AF:
0.000408
AC:
62
AN:
151954
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00145
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000996
AC:
25
AN:
251114
Hom.:
0
AF XY:
0.0000589
AC XY:
8
AN XY:
135742
show subpopulations
Gnomad AFR exome
AF:
0.00129
Gnomad AMR exome
AF:
0.0000579
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000654
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000465
AC:
68
AN:
1461762
Hom.:
0
Cov.:
31
AF XY:
0.0000426
AC XY:
31
AN XY:
727174
show subpopulations
Gnomad4 AFR exome
AF:
0.00131
Gnomad4 AMR exome
AF:
0.0000671
Gnomad4 ASJ exome
AF:
0.0000383
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000580
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000450
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.000441
AC:
67
AN:
152072
Hom.:
0
Cov.:
32
AF XY:
0.000377
AC XY:
28
AN XY:
74330
show subpopulations
Gnomad4 AFR
AF:
0.00157
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.000380
Hom.:
0
Bravo
AF:
0.000491
ESP6500AA
AF:
0.00113
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000123
AC:
15
Asia WGS
AF:
0.00115
AC:
4
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 GeneticsNov 09, 2021The c.767C>T (p.A256V) alteration is located in exon 7 (coding exon 7) of the NSRP1 gene. This alteration results from a C to T substitution at nucleotide position 767, causing the alanine (A) at amino acid position 256 to be replaced by a valine (V). 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
0.082
BayesDel_addAF
Benign
-0.54
T
BayesDel_noAF
Benign
-0.58
Cadd
Benign
21
Dann
Uncertain
0.98
DEOGEN2
Benign
0.056
T;T
Eigen
Benign
-0.46
Eigen_PC
Benign
-0.26
FATHMM_MKL
Uncertain
0.92
D
LIST_S2
Benign
0.60
T;T
M_CAP
Benign
0.012
T
MetaRNN
Benign
0.011
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
0.0
N;.
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.31
T
PROVEAN
Benign
-0.76
N;.
REVEL
Benign
0.052
Sift
Uncertain
0.0030
D;.
Sift4G
Benign
0.19
T;T
Polyphen
0.12
B;.
Vest4
0.048
MVP
0.26
MPC
0.091
ClinPred
0.052
T
GERP RS
4.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.059
gMVP
0.036

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: rs148657875; hg19: chr17-28511782; COSMIC: COSV55933849; COSMIC: COSV55933849; API