chr12-6514594-C-T

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 2P and 10B. PM2BP4_StrongBP6_ModerateBS1

The NM_014865.4(NCAPD2):​c.839+7C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000812 in 1,614,154 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000071 ( 0 hom. )

Consequence

NCAPD2
NM_014865.4 splice_region, intron

Scores

2
Splicing: ADA: 0.0007473
2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.226
Variant links:
Genes affected
NCAPD2 (HGNC:24305): (non-SMC condensin I complex subunit D2) Enables histone binding activity. Involved in mitotic chromosome condensation. Located in condensed chromosome; cytosol; and nucleoplasm. Part of condensin complex. Colocalizes with cytoplasm and nuclear chromosome. Implicated in primary autosomal recessive microcephaly. [provided by Alliance of Genome Resources, Apr 2022]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.74).
BP6
Variant 12-6514594-C-T is Benign according to our data. Variant chr12-6514594-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 1701182.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr12-6514594-C-T is described in Lovd as [Likely_benign].
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000177 (27/152336) while in subpopulation AMR AF= 0.00131 (20/15304). AF 95% confidence interval is 0.000865. There are 0 homozygotes in gnomad4. There are 18 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
NCAPD2NM_014865.4 linkuse as main transcriptc.839+7C>T splice_region_variant, intron_variant ENST00000315579.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NCAPD2ENST00000315579.10 linkuse as main transcriptc.839+7C>T splice_region_variant, intron_variant 1 NM_014865.4 P1
NCAPD2ENST00000382457.8 linkuse as main transcriptc.455+7C>T splice_region_variant, intron_variant 5
NCAPD2ENST00000539084.5 linkuse as main transcriptc.*534+7C>T splice_region_variant, intron_variant, NMD_transcript_variant 2
NCAPD2ENST00000545732.1 linkuse as main transcriptn.351+7C>T splice_region_variant, intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.000177
AC:
27
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00131
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:
0.000103
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000955
AC:
24
AN:
251242
Hom.:
0
AF XY:
0.000125
AC XY:
17
AN XY:
135798
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000318
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000792
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000711
AC:
104
AN:
1461818
Hom.:
0
Cov.:
34
AF XY:
0.0000756
AC XY:
55
AN XY:
727198
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000291
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000197
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000647
Gnomad4 OTH exome
AF:
0.0000331
GnomAD4 genome
AF:
0.000177
AC:
27
AN:
152336
Hom.:
0
Cov.:
32
AF XY:
0.000242
AC XY:
18
AN XY:
74490
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00131
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.000103
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000559
Hom.:
0
Bravo
AF:
0.0000982
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJul 01, 2022NCAPD2: BP4 -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.74
CADD
Benign
8.8
DANN
Benign
0.65

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00075
dbscSNV1_RF
Benign
0.096
SpliceAI score (max)
0.13
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: rs187721028; hg19: chr12-6623760; API