rs748268539

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4BS2

The NM_133433.4(NIPBL):​c.2261G>A​(p.Arg754Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000992 in 1,613,416 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R754L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000096 ( 0 hom. )

Consequence

NIPBL
NM_133433.4 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.07

Publications

2 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 Gene-Disease associations (from GenCC):
  • Cornelia de Lange syndrome
    Inheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
  • Cornelia de Lange syndrome 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.38809595).
BS2
High AC in GnomAdExome4 at 14 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
NIPBLNM_133433.4 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 47 ENST00000282516.13 NP_597677.2 Q6KC79-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
NIPBLENST00000282516.13 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 47 1 NM_133433.4 ENSP00000282516.8 Q6KC79-1
NIPBLENST00000448238.2 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 46 1 ENSP00000406266.2 Q6KC79-2
NIPBLENST00000652901.1 linkc.2261G>A p.Arg754Gln missense_variant Exon 10 of 46 ENSP00000499536.1 A0A590UJS4
NIPBLENST00000504430.5 linkn.1881G>A non_coding_transcript_exon_variant Exon 6 of 8 2

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
151920
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000958
AC:
14
AN:
1461496
Hom.:
0
Cov.:
32
AF XY:
0.0000138
AC XY:
10
AN XY:
727022
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33462
American (AMR)
AF:
0.00
AC:
0
AN:
44622
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26128
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39696
South Asian (SAS)
AF:
0.0000232
AC:
2
AN:
86234
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53246
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5766
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1111952
Other (OTH)
AF:
0.00
AC:
0
AN:
60390
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
3
4
6
7
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000132
AC:
2
AN:
151920
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74188
show subpopulations
African (AFR)
AF:
0.0000483
AC:
2
AN:
41370
American (AMR)
AF:
0.00
AC:
0
AN:
15218
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4818
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10576
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
67982
Other (OTH)
AF:
0.00
AC:
0
AN:
2080
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Cornelia de Lange syndrome 1 Uncertain:1
Feb 20, 2024
Fulgent Genetics, Fulgent Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Pathogenic
0.21
D
BayesDel_noAF
Uncertain
0.070
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.14
T;.
Eigen
Uncertain
0.56
Eigen_PC
Uncertain
0.65
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.91
D;D
M_CAP
Benign
0.044
D
MetaRNN
Benign
0.39
T;T
MetaSVM
Uncertain
0.59
D
MutationAssessor
Benign
2.0
M;M
PhyloP100
2.1
PrimateAI
Uncertain
0.62
T
PROVEAN
Benign
-0.43
N;N
REVEL
Uncertain
0.42
Sift
Uncertain
0.0050
D;D
Sift4G
Benign
0.39
T;T
Polyphen
1.0
D;D
Vest4
0.53
MutPred
0.24
Loss of MoRF binding (P = 0.0255);Loss of MoRF binding (P = 0.0255);
MVP
0.64
MPC
0.30
ClinPred
0.55
D
GERP RS
6.0
Varity_R
0.12
gMVP
0.39
Mutation Taster
=90/10
polymorphism

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

Other links and lift over

dbSNP: rs748268539; hg19: chr5-36985543; COSMIC: COSV56952821; API