2-231456690-T-C

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_005381.3(NCL):ā€‹c.1646A>Gā€‹(p.Glu549Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.000014 ( 0 hom. )

Consequence

NCL
NM_005381.3 missense

Scores

3
9
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.37
Variant links:
Genes affected
NCL (HGNC:7667): (nucleolin) Nucleolin (NCL), a eukaryotic nucleolar phosphoprotein, is involved in the synthesis and maturation of ribosomes. It is located mainly in dense fibrillar regions of the nucleolus. Human NCL gene consists of 14 exons with 13 introns and spans approximately 11kb. The intron 11 of the NCL gene encodes a small nucleolar RNA, termed U20. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2
High AC in GnomAdExome4 at 21 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NCLNM_005381.3 linkuse as main transcriptc.1646A>G p.Glu549Gly missense_variant 11/14 ENST00000322723.9 NP_005372.2 P19338B3KM80

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NCLENST00000322723.9 linkuse as main transcriptc.1646A>G p.Glu549Gly missense_variant 11/142 NM_005381.3 ENSP00000318195.4 P19338

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.00000795
AC:
2
AN:
251478
Hom.:
0
AF XY:
0.00
AC XY:
0
AN XY:
135916
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000176
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1461894
Hom.:
0
Cov.:
31
AF XY:
0.0000151
AC XY:
11
AN XY:
727248
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000189
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000113
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

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 GeneticsMay 09, 2024The c.1646A>G (p.E549G) alteration is located in exon 11 (coding exon 11) of the NCL gene. This alteration results from a A to G substitution at nucleotide position 1646, causing the glutamic acid (E) at amino acid position 549 to be replaced by a glycine (G). 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
Pathogenic
0.79
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.010
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.15
T;.
Eigen
Benign
0.064
Eigen_PC
Uncertain
0.27
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.065
D
MetaRNN
Uncertain
0.53
D;D
MetaSVM
Benign
-0.36
T
MutationAssessor
Benign
0.050
N;.
PrimateAI
Uncertain
0.73
T
PROVEAN
Uncertain
-2.7
D;D
REVEL
Uncertain
0.45
Sift
Benign
0.070
T;T
Sift4G
Uncertain
0.020
D;.
Polyphen
0.33
B;.
Vest4
0.64
MutPred
0.47
Loss of sheet (P = 0.0181);.;
MVP
0.85
MPC
1.2
ClinPred
0.58
D
GERP RS
5.6
Varity_R
0.35
gMVP
0.85

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: rs911844126; hg19: chr2-232321401; API