chr17-37540484-G-A

Position:

• chr17-37540484-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_007247.6(SYNRG):​c.3262C>T​(p.Pro1088Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,096 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 (★).

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 31)
• Consequence: SYNRG NM_007247.6 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 5.84

Genes affected

SYNRG (HGNC:557): (synergin gamma) This gene encodes a protein that interacts with the gamma subunit of AP1 clathrin-adaptor complex. The AP1 complex is located at the trans-Golgi network and associates specific proteins with clathrin-coated vesicles. This encoded protein may act to connect the AP1 complex to other proteins. Alternatively spliced transcript variants that encode different isoforms have been described for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.1929633).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SYNRG	NM_007247.6	c.3262C>T	p.Pro1088Ser	missense_variant	16/22	ENST00000612223.5	NP_009178.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SYNRG	ENST00000612223.5	c.3262C>T	p.Pro1088Ser	missense_variant	16/22	1	NM_007247.6	ENSP00000483453.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152096 Hom.: 0 Cov.: 31

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 Cov.: 32

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152096 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 74290

Gnomad4 AFR AF: 0.0000242

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 06, 2024

The c.3262C>T (p.P1088S) alteration is located in exon 16 (coding exon 16) of the SYNRG gene. This alteration results from a C to T substitution at nucleotide position 3262, causing the proline (P) at amino acid position 1088 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.10
BayesDel_addAF	Benign	-0.071	T
BayesDel_noAF	Benign	-0.34
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.19	T;.;.;.;.;.
Eigen	Uncertain	0.28
Eigen_PC	Uncertain	0.39
FATHMM_MKL	Pathogenic	0.98	D
M_CAP	Benign	0.0049	T
MetaRNN	Benign	0.19	T;T;T;T;T;T
MetaSVM	Benign	-0.97	T
MutationAssessor	Benign	1.8	L;.;.;.;.;.
PrimateAI	Uncertain	0.63	T
Sift4G	Benign	0.13	T;T;T;T;T;T
Polyphen		0.31	B;P;.;.;.;.
Vest4		0.35
MutPred		0.18		Gain of phosphorylation at P1088 (P = 0.0073);.;.;.;.;.;
MVP		0.043
ClinPred		0.82	D
GERP RS		5.3
Varity_R		0.14
gMVP		0.47

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

Publications

LitVar

Other links and lift over

dbSNP: rs1429859301; hg19: chr17-35900586;