chr1-7965320-G-T

Variant names:

• chr1-7965320-G-T
• rs756040385
• NM_007262.5:c.91-4G>T

Variant summary

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

The NM_007262.5(PARK7):​c.91-4G>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,064 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: PARK7 NM_007262.5 splice_region, intron
• Scores: Splicing: ADA: 0.00001175
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.323
• Publications: 0 publications found

Genes affected

PARK7 (HGNC:16369): (Parkinsonism associated deglycase) The product of this gene belongs to the peptidase C56 family of proteins. It acts as a positive regulator of androgen receptor-dependent transcription. It may also function as a redox-sensitive chaperone, as a sensor for oxidative stress, and it apparently protects neurons against oxidative stress and cell death. Defects in this gene are the cause of autosomal recessive early-onset Parkinson disease 7. Two transcript variants encoding the same protein have been identified for this gene. [provided by RefSeq, Jul 2008]

PARK7 Gene-Disease associations (from GenCC):

• Parkinson disease

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• autosomal recessive early-onset Parkinson disease 7

  Inheritance: AR Classification: STRONG, MODERATE Submitted by: Genomics England PanelApp, Ambry Genetics, Labcorp Genetics (formerly Invitae)
• young-onset Parkinson disease

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

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 (BayesDel_noAF=-0.83).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_007262.5. 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
	PARK7	NM_007262.5	MANE Select	c.91-4G>T		splice_region intron	N/A	NP_009193.2
	PARK7	NM_001123377.2		c.91-4G>T		splice_region intron	N/A	NP_001116849.1	Q99497

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	PARK7	ENST00000338639.10	TSL:1 MANE Select	c.91-4G>T		splice_region intron	N/A	ENSP00000340278.5	Q99497
	PARK7	ENST00000493678.5	TSL:1	c.91-4G>T		splice_region intron	N/A	ENSP00000418770.1	Q99497
	PARK7	ENST00000923305.1		c.91-4G>T		splice_region intron	N/A	ENSP00000593364.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460064 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 726470

African (AFR) AF: 0.00 AC: 0 AN: 33446

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39694

South Asian (SAS) AF: 0.00 AC: 0 AN: 86218

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5736

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1110394

Other (OTH) AF: 0.0000166 AC: 1 AN: 60328

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.83
CADD	Benign	0.14
DANN	Benign	0.47
PhyloP100		-0.32
PromoterAI		-0.038	Neutral

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000012
dbscSNV1_RF	Benign	0.0
SpliceAI score (max)		0.020		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: rs756040385; hg19: chr1-8025380;