chr2-127059056-G-C

Variant names:

• chr2-127059056-G-C
• rs2276579
• NM_139343.3:c.957C>G

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_139343.3(BIN1):​c.957C>G​(p.Ala319Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000019 in 1,576,176 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 (★). Synonymous variant affecting the same amino acid position (i.e. A319A) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: BIN1 NM_139343.3 synonymous
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.500
• Publications: 12 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):

• centronuclear myopathy

  Inheritance: AD, AR, SD Classification: DEFINITIVE, LIMITED Submitted by: ClinGen
• myopathy, centronuclear, 2

  Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• 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: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).
• BP7: Synonymous conserved (PhyloP=0.5 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_139343.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BIN1	NM_139343.3	MANE Select	c.957C>G	p.Ala319Ala	synonymous	Exon 11 of 19	NP_647593.1	O00499-1
	BIN1	NM_001320642.1		c.876C>G	p.Ala292Ala	synonymous	Exon 11 of 19	NP_001307571.1	O00499
	BIN1	NM_001320641.2		c.864C>G	p.Ala288Ala	synonymous	Exon 10 of 18	NP_001307570.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	BIN1	ENST00000316724.10	TSL:1 MANE Select	c.957C>G	p.Ala319Ala	synonymous	Exon 11 of 19	ENSP00000316779.5	O00499-1
	BIN1	ENST00000357970.7	TSL:1	c.957C>G	p.Ala319Ala	synonymous	Exon 11 of 18	ENSP00000350654.3	O00499-5
	BIN1	ENST00000346226.7	TSL:1	c.864C>G	p.Ala288Ala	synonymous	Exon 10 of 16	ENSP00000315411.3	O00499-2

Frequencies

GnomAD3 genomes AF: 0.00000658 AC: 1 AN: 152022 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000242

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: 0.00000140 AC: 2 AN: 1424154 Hom.: 0 Cov.: 38 AF XY: 0.00000142 AC XY: 1 AN XY: 704752

African (AFR) AF: 0.0000608 AC: 2 AN: 32892

American (AMR) AF: 0.00 AC: 0 AN: 38736

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25414

East Asian (EAS) AF: 0.00 AC: 0 AN: 38100

South Asian (SAS) AF: 0.00 AC: 0 AN: 81164

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 49918

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5712

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1093220

Other (OTH) AF: 0.00 AC: 0 AN: 58998

GnomAD4 genome AF: 0.00000658 AC: 1 AN: 152022 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74244

African (AFR) AF: 0.0000242 AC: 1 AN: 41404

American (AMR) AF: 0.00 AC: 0 AN: 15274

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5146

South Asian (SAS) AF: 0.00 AC: 0 AN: 4822

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10610

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 67980

Other (OTH) AF: 0.00 AC: 0 AN: 2088

Alfa AF: 0.00 Hom.: 759

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Myopathy, centronuclear, 2 (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	1.9
DANN	Benign	0.38
PhyloP100		0.50
Mutation Taster		=100/0	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

Other links and lift over

dbSNP: rs2276579; hg19: chr2-127816632;