2-127068974-A-G

Variant names:

• chr2-127068974-A-G
• rs1553466026
• NM_139343.3:c.469T>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM1 PM2

The NM_139343.3(BIN1):​c.469T>C​(p.Tyr157His) variant causes a missense change. The variant allele was found at a frequency of 0.00000205 in 1,461,846 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. Y157Y) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 34)
  • Exomes 𝑓: 0.0000021 (0 hom.)
• Consequence: BIN1 NM_139343.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 5.28
• Publications: 0 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: Uncertain_significance. The variant received 4 ACMG points.

• PM1: In a hotspot region, there are 2 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 0 benign, 4 uncertain in NM_139343.3
• PM2: Very rare variant in population databases, with high coverage

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.469T>C	p.Tyr157His	missense	Exon 6 of 19	NP_647593.1	O00499-1
	BIN1	NM_001320642.1		c.388T>C	p.Tyr130His	missense	Exon 6 of 19	NP_001307571.1	O00499
	BIN1	NM_001320641.2		c.469T>C	p.Tyr157His	missense	Exon 6 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.469T>C	p.Tyr157His	missense	Exon 6 of 19	ENSP00000316779.5	O00499-1
	BIN1	ENST00000357970.7	TSL:1	c.469T>C	p.Tyr157His	missense	Exon 6 of 18	ENSP00000350654.3	O00499-5
	BIN1	ENST00000346226.7	TSL:1	c.469T>C	p.Tyr157His	missense	Exon 6 of 16	ENSP00000315411.3	O00499-2

Frequencies

GnomAD3 genomes Cov.: 34

GnomAD4 exome AF: 0.00000205 AC: 3 AN: 1461846 Hom.: 0 Cov.: 35 AF XY: 0.00000138 AC XY: 1 AN XY: 727230

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000447 AC: 2 AN: 44714

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26130

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53404

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111998

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 34

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	Myopathy, centronuclear, 2 (1)
-	1	-	not provided (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.52
BayesDel_addAF	Benign	-0.0065	T
BayesDel_noAF	Benign	-0.25
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.64	D
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.46
FATHMM_MKL	Uncertain	0.94	D
LIST_S2	Uncertain	0.91	D
M_CAP	Uncertain	0.087	D
MetaRNN	Uncertain	0.64	D
MetaSVM	Benign	-0.47	T
MutationAssessor	Benign	1.8	L
PhyloP100		5.3
PrimateAI	Uncertain	0.75	T
PROVEAN	Uncertain	-3.5	D
REVEL	Uncertain	0.43
Sift	Uncertain	0.0010	D
Sift4G	Uncertain	0.010	D
Polyphen		0.97	D
Vest4		0.46
MutPred		0.73		Gain of disorder (P = 0.0407)
MVP		0.83
MPC		1.9
ClinPred		0.99	D
GERP RS		3.9
Varity_R		0.40
gMVP		0.66
Mutation Taster		=62/38	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: rs1553466026; hg19: chr2-127826550;