chr2-127048600-C-T

Variant names:

• chr2-127048600-C-T
• rs368983991
• NM_139343.3:c.1708G>A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_139343.3(BIN1):​c.1708G>A​(p.Asp570Asn) variant causes a missense change. The variant allele was found at a frequency of 0.00000137 in 1,461,206 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: BIN1 NM_139343.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 6.17

Genes affected

BIN1 (HGNC:1052): (bridging integrator 1) This gene encodes several isoforms of a nucleocytoplasmic adaptor protein, one of which was initially identified as a MYC-interacting protein with features of a tumor suppressor. Isoforms that are expressed in the central nervous system may be involved in synaptic vesicle endocytosis and may interact with dynamin, synaptojanin, endophilin, and clathrin. Isoforms that are expressed in muscle and ubiquitously expressed isoforms localize to the cytoplasm and nucleus and activate a caspase-independent apoptotic process. Studies in mouse suggest that this gene plays an important role in cardiac muscle development. Alternate splicing of the gene results in several transcript variants encoding different isoforms. Aberrant splice variants expressed in tumor cell lines have also been described. [provided by RefSeq, Mar 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BIN1	NM_139343.3	c.1708G>A	p.Asp570Asn	missense_variant	Exon 19 of 19	ENST00000316724.10	NP_647593.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BIN1	ENST00000316724.10	c.1708G>A	p.Asp570Asn	missense_variant	Exon 19 of 19	1	NM_139343.3	ENSP00000316779.5

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1461206 Hom.: 0 Cov.: 31 AF XY: 0.00000275 AC XY: 2 AN XY: 726906

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: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000116 AC: 1

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Myopathy, centronuclear, 2 Uncertain:1

Jul 12, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 570 of the BIN1 protein (p.Asp570Asn). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with BIN1-related conditions. ClinVar contains an entry for this variant (Variation ID: 461708). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.20
BayesDel_addAF	Benign	-0.019	T
BayesDel_noAF	Benign	-0.26
CADD	Pathogenic	28
DANN	Pathogenic	1.0
DEOGEN2	Benign	0.27	.;.;.;.;.;.;.;.;.;T;.
Eigen	Uncertain	0.67
Eigen_PC	Uncertain	0.66
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.97	D;D;D;D;D;D;D;D;D;D;D
M_CAP	Uncertain	0.19	D
MetaRNN	Uncertain	0.65	D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Uncertain	-0.24	T
MutationAssessor	Benign	1.3	.;.;.;.;.;.;.;.;.;L;.
PrimateAI	Uncertain	0.78	T
PROVEAN	Uncertain	-3.4	D;D;D;D;D;D;D;D;D;D;D
REVEL	Uncertain	0.33
Sift	Benign	0.12	T;D;D;T;D;D;T;T;T;D;T
Sift4G	Benign	0.19	T;T;T;T;T;T;T;T;T;T;T
Polyphen		1.0	D;D;D;D;D;D;D;D;D;D;D
Vest4		0.60
MVP		0.90
MPC		0.91
ClinPred		0.98	D
GERP RS		4.9
Varity_R		0.65
gMVP		0.73

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

Other links and lift over

dbSNP: rs368983991; hg19: chr2-127806176; COSMIC: COSV52119395; COSMIC: COSV52119395;