7-38394057-C-T

Variant names:

• chr7-38394057-C-T
• rs935875007
• NM_001635.4:c.1556G>A

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_001635.4(AMPH):​c.1556G>A​(p.Gly519Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,176 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G519V) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: AMPH NM_001635.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.485
• Publications: 0 publications found

Genes affected

AMPH (HGNC:471): (amphiphysin) This gene encodes a protein associated with the cytoplasmic surface of synaptic vesicles. A subset of patients with stiff-man syndrome who were also affected by breast cancer are positive for autoantibodies against this protein. Alternate splicing of this gene results in two transcript variants encoding different isoforms. Additional splice variants have been described, but their full length sequences have not been determined. A pseudogene of this gene is found on chromosome 11.[provided by RefSeq, Nov 2010]

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.057987094).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001635.4. 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
	AMPH	NM_001635.4	MANE Select	c.1556G>A	p.Gly519Asp	missense	Exon 18 of 21	NP_001626.1	P49418-1
	AMPH	NM_139316.3		c.1430G>A	p.Gly477Asp	missense	Exon 17 of 20	NP_647477.1	P49418-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	AMPH	ENST00000356264.7	TSL:1 MANE Select	c.1556G>A	p.Gly519Asp	missense	Exon 18 of 21	ENSP00000348602.2	P49418-1
	AMPH	ENST00000325590.9	TSL:1	c.1430G>A	p.Gly477Asp	missense	Exon 17 of 20	ENSP00000317441.5	P49418-2
	AMPH	ENST00000441628.5	TSL:1	c.1202G>A	p.Gly401Asp	missense	Exon 9 of 12	ENSP00000415085.1	H0Y7T8

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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 Cov.: 31

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152176 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74334

African (AFR) AF: 0.0000241 AC: 1 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15276

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5190

South Asian (SAS) AF: 0.00 AC: 0 AN: 4830

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10620

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

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68034

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

Alfa AF: 0.00 Hom.: 0

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.067
BayesDel_addAF	Benign	-0.13	T
BayesDel_noAF	Benign	-0.42
CADD	Benign	2.4
DANN	Benign	0.18
DEOGEN2	Benign	0.17	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.016	N
LIST_S2	Benign	0.47	T
M_CAP	Benign	0.013	T
MetaRNN	Benign	0.058	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	0.69	N
PhyloP100		-0.48
PrimateAI	Benign	0.27	T
PROVEAN	Benign	-1.4	N
REVEL	Benign	0.089
Sift	Benign	0.082	T
Sift4G	Benign	0.63	T
Polyphen		0.050	B
Vest4		0.15
MutPred		0.15		Gain of phosphorylation at T516 (P = 0.1189)
MVP		0.62
MPC		0.25
ClinPred		0.083	T
GERP RS		-1.2
Varity_R		0.063
gMVP		0.13
Mutation Taster		=97/3	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: rs935875007; hg19: chr7-38433657; COSMIC: COSV57760685; COSMIC: COSV57760685;