chr1-62636609-T-C

Variant names:

• chr1-62636609-T-C
• rs1553192254
• NM_001367561.1:c.819-6A>G

Variant summary

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

The NM_001367561.1(DOCK7):​c.819-6A>G variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000697 in 1,435,012 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: 7.0e-7 (0 hom.)
• Consequence: DOCK7 NM_001367561.1 splice_region, intron
• Scores: Splicing: ADA: 0.0003198
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.215
• Publications: 0 publications found

Genes affected

DOCK7 (HGNC:19190): (dedicator of cytokinesis 7) The protein encoded by this gene is a guanine nucleotide exchange factor (GEF) that plays a role in axon formation and neuronal polarization. The encoded protein displays GEF activity toward RAC1 and RAC3 Rho small GTPases but not toward CDC42. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2012]

DOCK7 Gene-Disease associations (from GenCC):

• genetic developmental and epileptic encephalopathy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• developmental and epileptic encephalopathy, 23

  Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet, G2P

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=-0.74).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DOCK7	NM_001367561.1	c.819-6A>G		splice_region_variant, intron_variant	Intron 7 of 49	ENST00000635253.2	NP_001354490.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DOCK7	ENST00000635253.2	c.819-6A>G		splice_region_variant, intron_variant	Intron 7 of 49	5	NM_001367561.1	ENSP00000489124.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.97e-7 AC: 1 AN: 1435012 Hom.: 0 Cov.: 27 AF XY: 0.00000140 AC XY: 1 AN XY: 713766

African (AFR) AF: 0.00 AC: 0 AN: 32666

American (AMR) AF: 0.00 AC: 0 AN: 42796

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25460

East Asian (EAS) AF: 0.00 AC: 0 AN: 39224

South Asian (SAS) AF: 0.00 AC: 0 AN: 82470

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52888

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5724

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1094368

Other (OTH) AF: 0.0000168 AC: 1 AN: 59416

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.74
CADD	Benign	3.3
DANN	Benign	0.88
PhyloP100		0.21

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.00032
dbscSNV1_RF	Benign	0.058
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: rs1553192254; hg19: chr1-63102280;