5-37036460-A-C

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 1P and 5B. PP2BS1_SupportingBS2

The NM_133433.4(NIPBL):c.5944A>C(p.Ile1982Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000577 in 1,456,208 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000067 ( 0 hom., cov: 30)

Exomes 𝑓: 0.000057 ( 0 hom. )

Consequence

NIPBL
NM_133433.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:3B:1

Conservation

PhyloP100: 8.94

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PP2

Missense variant in the NIPBL gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 86 curated pathogenic missense variants (we use a threshold of 10). The gene has 69 curated benign missense variants. Gene score misZ: 5.5737 (above the threshold of 3.09). Trascript score misZ: 6.6817 (above the threshold of 3.09). GenCC associations: The gene is linked to Cornelia de Lange syndrome, Cornelia de Lange syndrome 1.

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.0000666 (10/150044) while in subpopulation NFE AF= 0.000118 (8/67616). AF 95% confidence interval is 0.0000587. There are 0 homozygotes in gnomad4. There are 5 alleles in male gnomad4 subpopulation. Median coverage is 30. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NIPBL	NM_133433.4 link	c.5944A>C	p.Ile1982Leu	missense_variant	Exon 33 of 47	ENST00000282516.13	NP_597677.2	Q6KC79-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
NIPBL	ENST00000282516.13 link	c.5944A>C	p.Ile1982Leu	missense_variant	Exon 33 of 47	1	NM_133433.4	ENSP00000282516.8	Q6KC79-1
NIPBL	ENST00000448238.2 link	c.5944A>C	p.Ile1982Leu	missense_variant	Exon 33 of 46	1		ENSP00000406266.2	Q6KC79-2
NIPBL	ENST00000652901.1 link	c.5944A>C	p.Ile1982Leu	missense_variant	Exon 33 of 46			ENSP00000499536.1	A0A590UJS4

Frequencies

GnomAD3 genomes

AF:

0.0000666

AC:

AN:

150044

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000244

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000103

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000118

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000264

AC:

AN:

151256

Hom.:

AF XY:

0.0000372

AC XY:

AN XY:

80558

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:

0.0000602

Gnomad NFE exome

AF:

0.0000476

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000567

AC:

AN:

1306164

Hom.:

Cov.:

AF XY:

0.0000558

AC XY:

AN XY:

645004

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:

0.0000696

Gnomad4 OTH exome

AF:

0.0000563

GnomAD4 genome

AF:

0.0000666

AC:

AN:

150044

Hom.:

Cov.:

AF XY:

0.0000683

AC XY:

AN XY:

73196

show subpopulations

Gnomad4 AFR

AF:

0.0000244

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.000103

Gnomad4 NFE

AF:

0.000118

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000808

Hom.:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000236

AC:

ExAC

AF:

0.0000180

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:3Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Cornelia de Lange syndrome 1

Uncertain:3

Oct 31, 2018

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jul 15, 2021

Genome-Nilou Lab

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 11, 2013

Genetic Services Laboratory, University of Chicago

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Inborn genetic diseases

Benign:1

Dec 20, 2024

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.38

BayesDel_addAF

Benign

-0.067

BayesDel_noAF

Benign

-0.15

CADD

Uncertain

DANN

Uncertain

0.98

DEOGEN2

Benign

0.23

T;.

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.33

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.94

D;D

M_CAP

Benign

0.058

MetaRNN

Uncertain

0.46

T;T

MetaSVM

Benign

-0.90

MutationAssessor

Benign

1.3

L;L

PrimateAI

Pathogenic

0.89

PROVEAN

Benign

-1.2

N;N

REVEL

Benign

0.21

Sift

Benign

0.29

T;T

Sift4G

Benign

0.075

T;T

Polyphen

0.13

B;B

Vest4

0.74

MVP

0.63

MPC

1.4

ClinPred

0.26

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.44

gMVP

0.55

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over