chr2-127101865-A-G

Variant names:

• chr2-127101865-A-G
• rs749008
• NM_139343.3:c.84+4995T>C

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_139343.3(BIN1):​c.84+4995T>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.382 in 151,972 control chromosomes in the GnomAD database, including 11,304 homozygotes. 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 0.38 (11304 hom., cov: 32)
• Consequence: BIN1 NM_139343.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.427
• Publications: 9 publications found

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]

BIN1 Gene-Disease associations (from GenCC):

• myopathy, centronuclear, 2

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Ambry Genetics
• centronuclear myopathy

  Inheritance: SD Classification: DEFINITIVE Submitted by: ClinGen
• autosomal dominant centronuclear myopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• autosomal recessive centronuclear myopathy

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.89).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.444 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
BIN1	NM_139343.3	c.84+4995T>C		intron_variant	Intron 1 of 18	ENST00000316724.10	NP_647593.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
BIN1	ENST00000316724.10	c.84+4995T>C		intron_variant	Intron 1 of 18	1	NM_139343.3	ENSP00000316779.5

Frequencies

GnomAD3 genomes AF: 0.382 AC: 57996 AN: 151854 Hom.: 11288 Cov.: 32

Gnomad AFR AF: 0.449

Gnomad AMI AF: 0.225

Gnomad AMR AF: 0.384

Gnomad ASJ AF: 0.280

Gnomad EAS AF: 0.314

Gnomad SAS AF: 0.378

Gnomad FIN AF: 0.330

Gnomad MID AF: 0.396

Gnomad NFE AF: 0.362

Gnomad OTH AF: 0.375

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.382 AC: 58055 AN: 151972 Hom.: 11304 Cov.: 32 AF XY: 0.380 AC XY: 28243 AN XY: 74282

African (AFR) AF: 0.449 AC: 18592 AN: 41412

American (AMR) AF: 0.383 AC: 5858 AN: 15280

Ashkenazi Jewish (ASJ) AF: 0.280 AC: 971 AN: 3468

East Asian (EAS) AF: 0.314 AC: 1618 AN: 5156

South Asian (SAS) AF: 0.376 AC: 1810 AN: 4820

European-Finnish (FIN) AF: 0.330 AC: 3492 AN: 10570

Middle Eastern (MID) AF: 0.405 AC: 119 AN: 294

European-Non Finnish (NFE) AF: 0.362 AC: 24590 AN: 67956

Other (OTH) AF: 0.380 AC: 800 AN: 2104

Alfa AF: 0.367 Hom.: 39894

Bravo AF: 0.387

Asia WGS AF: 0.362 AC: 1260 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.89
CADD	Benign	6.9
DANN	Benign	0.67
PhyloP100		0.43
Mutation Taster		=100/0	polymorphism (auto)

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

Other links and lift over

dbSNP: rs749008; hg19: chr2-127859441;