rs774436457

Variant names:

• chr5-122440630-A-G
• rs774436457
• NM_005460.4:c.1298A>G

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_005460.4(SNCAIP):​c.1298A>G​(p.Glu433Gly) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,508 control chromosomes in the GnomAD database, with no homozygous occurrence. 2/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency:
  • Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0000075 (0 hom.)
• Consequence: SNCAIP NM_005460.4 missense, splice_region
• Scores: Splicing: ADA: 0.8068
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.81
• Publications: 0 publications found

Genes affected

SNCAIP (HGNC:11139): (synuclein alpha interacting protein) This gene encodes a protein containing several protein-protein interaction domains, including ankyrin-like repeats, a coiled-coil domain, and an ATP/GTP-binding motif. The encoded protein interacts with alpha-synuclein in neuronal tissue and may play a role in the formation of cytoplasmic inclusions and neurodegeneration. A mutation in this gene has been associated with Parkinson's disease. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2015]

MGC32805 (HGNC:28478):

ACMG classification

Our verdict: Likely_benign. The variant received -4 ACMG points.

• BS2: High AC in GnomAdExome4 at 11 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005460.4. 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
	SNCAIP	NM_005460.4	MANE Select	c.1298A>G	p.Glu433Gly	missense splice_region	Exon 7 of 11	NP_005451.2	Q9Y6H5-1
	SNCAIP	NM_001308100.2		c.1439A>G	p.Glu480Gly	missense splice_region	Exon 9 of 14	NP_001295029.1	Q9Y6H5-3
	SNCAIP	NM_001308105.1		c.1118A>G	p.Glu373Gly	missense splice_region	Exon 5 of 9	NP_001295034.1	B7Z995

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SNCAIP	ENST00000261368.13	TSL:1 MANE Select	c.1298A>G	p.Glu433Gly	missense splice_region	Exon 7 of 11	ENSP00000261368.8	Q9Y6H5-1
	SNCAIP	ENST00000261367.11	TSL:1	c.1439A>G	p.Glu480Gly	missense splice_region	Exon 9 of 14	ENSP00000261367.7	Q9Y6H5-3
	SNCAIP	ENST00000508017.5	TSL:1	n.*45A>G		splice_region non_coding_transcript_exon	Exon 5 of 9	ENSP00000424338.1	Q6L982

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152158 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

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: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.00000398 AC: 1 AN: 251370 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000753 AC: 11 AN: 1461350 Hom.: 0 Cov.: 30 AF XY: 0.00000688 AC XY: 5 AN XY: 727008

African (AFR) AF: 0.00 AC: 0 AN: 33468

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26128

East Asian (EAS) AF: 0.00 AC: 0 AN: 39696

South Asian (SAS) AF: 0.0000232 AC: 2 AN: 86248

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53416

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00000810 AC: 9 AN: 1111528

Other (OTH) AF: 0.00 AC: 0 AN: 60376

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152158 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74332

African (AFR) AF: 0.00 AC: 0 AN: 41442

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

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3468

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4826

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: 0.0000147 AC: 1 AN: 68030

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

Alfa AF: 0.0000329 Hom.: 0

Bravo AF: 0.00000756

ExAC AF: 0.00000824 AC: 1

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.81
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Pathogenic	0.18
CADD	Pathogenic	32
DANN	Uncertain	1.0
DEOGEN2	Benign	0.14	T
Eigen	Uncertain	0.63
Eigen_PC	Uncertain	0.64
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.95	D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.60	D
MetaSVM	Benign	-0.40	T
MutationAssessor	Benign	1.5	L
PhyloP100		8.8
PrimateAI	Uncertain	0.61	T
PROVEAN	Uncertain	-3.1	D
REVEL	Uncertain	0.35
Sift	Benign	0.042	D
Sift4G	Uncertain	0.0070	D
Polyphen		0.58	P
Vest4		0.85
MutPred		0.46		Loss of loop (P = 0.0512)
MVP		0.92
MPC		0.84
ClinPred		0.97	D
GERP RS		5.2
Varity_R		0.31
gMVP		0.58
Mutation Taster		=16/84	disease causing

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.81
dbscSNV1_RF	Pathogenic	0.77
SpliceAI score (max)		0.010		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: rs774436457; hg19: chr5-121776325;