22-39374345-C-A

Variant names:

• chr22-39374345-C-A
• rs762377335
• NM_004711.5:c.129C>A

Variant summary

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

The NM_004711.5(SYNGR1):​c.129C>A​(p.Ile43Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000254 in 1,613,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: 𝑓 0.000026 (0 hom., cov: 33)
  • Exomes 𝑓: 0.000025 (0 hom.)
• Consequence: SYNGR1 NM_004711.5 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.690
• Publications: 0 publications found

Genes affected

SYNGR1 (HGNC:11498): (synaptogyrin 1) This gene encodes an integral membrane protein associated with presynaptic vesicles in neuronal cells. The exact function of this protein is unclear, but studies of a similar murine protein suggest that it functions in synaptic plasticity without being required for synaptic transmission. The gene product belongs to the synaptogyrin gene family. Three alternatively spliced variants encoding three different isoforms have been identified. [provided by RefSeq, Jul 2008]

SYNGR1 Gene-Disease associations (from GenCC):

• bipolar disorder

  Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
• schizophrenia

  Inheritance: Unknown Classification: NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae)

ACMG classification

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

• BS2: High AC in GnomAdExome4 at 37 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004711.5. 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
	SYNGR1	NM_004711.5	MANE Select	c.129C>A	p.Ile43Ile	synonymous	Exon 2 of 4	NP_004702.2
	SYNGR1	NM_145738.3		c.132C>A	p.Ile44Ile	synonymous	Exon 2 of 4	NP_663791.1	O43759-3
	SYNGR1	NM_145731.4		c.129C>A	p.Ile43Ile	synonymous	Exon 2 of 4	NP_663783.1	O43759-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNGR1	ENST00000328933.10	TSL:1 MANE Select	c.129C>A	p.Ile43Ile	synonymous	Exon 2 of 4	ENSP00000332287.5	O43759-1
	SYNGR1	ENST00000381535.4	TSL:1	c.132C>A	p.Ile44Ile	synonymous	Exon 2 of 4	ENSP00000370946.4	O43759-3
	SYNGR1	ENST00000318801.8	TSL:1	c.129C>A	p.Ile43Ile	synonymous	Exon 2 of 4	ENSP00000318845.4	O43759-2

Frequencies

GnomAD3 genomes AF: 0.0000263 AC: 4 AN: 152172 Hom.: 0 Cov.: 33

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: 0.000621

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.0000600 AC: 15 AN: 250094 AF XY: 0.0000961

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: 0.0000178

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000253 AC: 37 AN: 1461712 Hom.: 0 Cov.: 32 AF XY: 0.0000385 AC XY: 28 AN XY: 727168

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

American (AMR) AF: 0.00 AC: 0 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

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

South Asian (SAS) AF: 0.000325 AC: 28 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53242

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

European-Non Finnish (NFE) AF: 0.00000809 AC: 9 AN: 1112012

Other (OTH) AF: 0.00 AC: 0 AN: 60394

GnomAD4 genome AF: 0.0000263 AC: 4 AN: 152172 Hom.: 0 Cov.: 33 AF XY: 0.0000404 AC XY: 3 AN XY: 74330

African (AFR) AF: 0.00 AC: 0 AN: 41438

American (AMR) AF: 0.00 AC: 0 AN: 15282

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5182

South Asian (SAS) AF: 0.000621 AC: 3 AN: 4834

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10624

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

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68020

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.00000378

EpiCase AF: 0.0000545

EpiControl AF: 0.00

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.43
CADD	Benign	13
DANN	Benign	0.90
PhyloP100		-0.69

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.27		Details are displayed if max score is > 0.2
DS_AG_spliceai		0.27		Position offset: 2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs762377335; hg19: chr22-39770350;