Genetic Variant NIPBL:c.-424T>G (chr5-36876834-T-G) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_133433.4(NIPBL):c.-424T>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000065 ( 0 hom., cov: 0)

Exomes 𝑓: 0.00016 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

NIPBL
NM_133433.4 5_prime_UTR

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.976

Publications

0 publications found

Variant links:

Genes affected

NIPBL (HGNC:28862): (NIPBL cohesin loading factor) This gene encodes the homolog of the Drosophila melanogaster Nipped-B gene product and fungal Scc2-type sister chromatid cohesion proteins. The Drosophila protein facilitates enhancer-promoter communication of remote enhancers and plays a role in developmental regulation. It is also homologous to a family of chromosomal adherins with broad roles in sister chromatid cohesion, chromosome condensation, and DNA repair. The human protein has a bipartite nuclear targeting sequence and a putative HEAT repeat. Condensins, cohesins and other complexes with chromosome-related functions also contain HEAT repeats. Mutations in this gene result in Cornelia de Lange syndrome, a disorder characterized by dysmorphic facial features, growth delay, limb reduction defects, and cognitive disability. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

NIPBL links:

NIPBL-DT (HGNC:51293): (NIPBL divergent transcript)

NIPBL-DT links:

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.72).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NIPBL	NM_133433.4 link	c.-424T>G		5_prime_UTR_variant	Exon 1 of 47	ENST00000282516.13	NP_597677.2	Q6KC79-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NIPBL	ENST00000282516.13 link	c.-424T>G		5_prime_UTR_variant	Exon 1 of 47	1	NM_133433.4	ENSP00000282516.8		Q6KC79-1

Frequencies

GnomAD3 genomes

AF:

0.0000646

AC:

AN:

61942

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000156

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:

0.0000338

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.000163

AC:

AN:

18382

Hom.:

Cov.:

AF XY:

0.000315

AC XY:

AN XY:

9534

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00249

AC:

AN:

402

American (AMR)

AF:

0.00

AC:

AN:

504

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

484

East Asian (EAS)

AF:

0.00

AC:

AN:

1858

South Asian (SAS)

AF:

0.00

AC:

AN:

342

European-Finnish (FIN)

AF:

0.00

AC:

AN:

1714

Middle Eastern (MID)

AF:

0.00

AC:

AN:

European-Non Finnish (NFE)

AF:

0.000169

AC:

AN:

11826

Other (OTH)

AF:

0.00

AC:

AN:

1164

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.258

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000645

AC:

AN:

61996

Hom.:

Cov.:

AF XY:

0.0000677

AC XY:

AN XY:

29540

show subpopulations

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.000121

AC:

AN:

16536

American (AMR)

AF:

0.000156

AC:

AN:

6422

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

1512

East Asian (EAS)

AF:

0.00

AC:

AN:

1372

South Asian (SAS)

AF:

0.00

AC:

AN:

1380

European-Finnish (FIN)

AF:

0.00

AC:

AN:

3860

Middle Eastern (MID)

AF:

0.00

AC:

AN:

116

European-Non Finnish (NFE)

AF:

0.0000338

AC:

AN:

29562

Other (OTH)

AF:

0.00

AC:

AN:

944

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.263

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.72

CADD

Benign

(source)

DANN

Benign

0.66

PhyloP100

0.98

PromoterAI

-0.065

Neutral

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

5-36876834-T-G

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over