chr12-6516815-TTC-T

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP6BS1

The NM_014865.4(NCAPD2):​c.988-5_988-4del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000201 in 1,613,764 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (no stars).

Frequency

Genomes: 𝑓 0.0011 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00011 ( 0 hom. )

Consequence

NCAPD2
NM_014865.4 splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Likely benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.0310
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 Likely_benign. Variant got -3 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 12-6516815-TTC-T is Benign according to our data. Variant chr12-6516815-TTC-T is described in ClinVar as [Likely_benign]. Clinvar id is 3049053.Status of the report is no_assertion_criteria_provided, 0 stars.
BS1
Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00106 (161/152240) while in subpopulation AFR AF= 0.00359 (149/41538). AF 95% confidence interval is 0.00312. There are 0 homozygotes in gnomad4. There are 80 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.988-5_988-4del splice_polypyrimidine_tract_variant, intron_variant ENST00000315579.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
NCAPD2ENST00000315579.10 linkuse as main transcriptc.988-5_988-4del splice_polypyrimidine_tract_variant, intron_variant 1 NM_014865.4 P1
NCAPD2ENST00000382457.8 linkuse as main transcriptc.604-5_604-4del splice_polypyrimidine_tract_variant, intron_variant 5
NCAPD2ENST00000539084.5 linkuse as main transcriptc.*683-5_*683-4del splice_polypyrimidine_tract_variant, intron_variant, NMD_transcript_variant 2
NCAPD2ENST00000545732.1 linkuse as main transcriptn.500-5_500-4del splice_polypyrimidine_tract_variant, intron_variant, non_coding_transcript_variant 5

Frequencies

GnomAD3 genomes
AF:
0.00106
AC:
162
AN:
152122
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00360
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000589
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:
0.00192
GnomAD3 exomes
AF:
0.000303
AC:
76
AN:
251124
Hom.:
0
AF XY:
0.000243
AC XY:
33
AN XY:
135744
show subpopulations
Gnomad AFR exome
AF:
0.00443
Gnomad AMR exome
AF:
0.0000868
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:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000112
AC:
163
AN:
1461524
Hom.:
0
AF XY:
0.0000963
AC XY:
70
AN XY:
727038
show subpopulations
Gnomad4 AFR exome
AF:
0.00385
Gnomad4 AMR exome
AF:
0.000179
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:
0.00000720
Gnomad4 OTH exome
AF:
0.000298
GnomAD4 genome
AF:
0.00106
AC:
161
AN:
152240
Hom.:
0
Cov.:
32
AF XY:
0.00107
AC XY:
80
AN XY:
74454
show subpopulations
Gnomad4 AFR
AF:
0.00359
Gnomad4 AMR
AF:
0.000523
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:
0.00190
Alfa
AF:
0.000391
Hom.:
0
Bravo
AF:
0.00108

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

NCAPD2-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesDec 16, 2019This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

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.

Other links and lift over

dbSNP: rs377724145; hg19: chr12-6625981; API