11-134153011-C-G

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_StrongPM2

The NM_001372068.1(NCAPD3):​c.4389-1G>C variant causes a splice acceptor, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000086 in 1,592,762 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00047 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000046 ( 0 hom. )

Consequence

NCAPD3
NM_001372068.1 splice_acceptor, intron

Scores

7
12

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.48
Variant links:
Genes affected
NCAPD3 (HGNC:28952): (non-SMC condensin II complex subunit D3) Condensin complexes I and II play essential roles in mitotic chromosome assembly and segregation. Both condensins contain 2 invariant structural maintenance of chromosome (SMC) subunits, SMC2 (MIM 605576) and SMC4 (MIM 605575), but they contain different sets of non-SMC subunits. NCAPD3 is 1 of 3 non-SMC subunits that define condensin II (Ono et al., 2003 [PubMed 14532007]).[supplied by OMIM, Mar 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PVS1
Splicing +-2 bp (donor or acceptor) variant, product NOT destroyed by NMD, known LOF gene, truncates exone, which is 0.6502806 fraction of the gene.
PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
NCAPD3NM_015261.3 linkuse as main transcriptc.4430G>C p.Arg1477Thr missense_variant 35/35 ENST00000534548.7 NP_056076.1 P42695

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
NCAPD3ENST00000534548.7 linkuse as main transcriptc.4430G>C p.Arg1477Thr missense_variant 35/351 NM_015261.3 ENSP00000433681.3 P42695

Frequencies

GnomAD3 genomes
AF:
0.000460
AC:
70
AN:
152184
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00157
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.00
Gnomad OTH
AF:
0.00144
GnomAD3 exomes
AF:
0.000159
AC:
38
AN:
238978
Hom.:
0
AF XY:
0.000109
AC XY:
14
AN XY:
128706
show subpopulations
Gnomad AFR exome
AF:
0.00192
Gnomad AMR exome
AF:
0.000153
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000364
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000174
GnomAD4 exome
AF:
0.0000458
AC:
66
AN:
1440460
Hom.:
0
Cov.:
31
AF XY:
0.0000392
AC XY:
28
AN XY:
713502
show subpopulations
Gnomad4 AFR exome
AF:
0.00150
Gnomad4 AMR exome
AF:
0.000210
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:
9.09e-7
Gnomad4 OTH exome
AF:
0.000118
GnomAD4 genome
AF:
0.000466
AC:
71
AN:
152302
Hom.:
1
Cov.:
33
AF XY:
0.000336
AC XY:
25
AN XY:
74480
show subpopulations
Gnomad4 AFR
AF:
0.00159
Gnomad4 AMR
AF:
0.000131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00142
Alfa
AF:
0.0000917
Hom.:
0
Bravo
AF:
0.000608
ESP6500AA
AF:
0.00114
AC:
5
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.000157
AC:
19
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 GeneticsDec 02, 2022The c.4430G>C (p.R1477T) alteration is located in exon 35 (coding exon 35) of the NCAPD3 gene. This alteration results from a G to C substitution at nucleotide position 4430, causing the arginine (R) at amino acid position 1477 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
0.16
BayesDel_addAF
Benign
-0.23
T
BayesDel_noAF
Benign
-0.11
CADD
Uncertain
24
DANN
Uncertain
0.98
DEOGEN2
Benign
0.0085
T
Eigen
Uncertain
0.47
Eigen_PC
Uncertain
0.45
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.78
T
M_CAP
Benign
0.017
T
MetaRNN
Benign
0.015
T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.5
M
PrimateAI
Benign
0.35
T
PROVEAN
Benign
-1.3
N
REVEL
Benign
0.14
Sift
Uncertain
0.0070
D
Sift4G
Uncertain
0.050
T
Polyphen
0.99
D
Vest4
0.50
MVP
0.48
MPC
0.43
ClinPred
0.071
T
GERP RS
5.6
Varity_R
0.12
gMVP
0.42

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: rs141510296; hg19: chr11-134022906; API