19-12764912-G-T

Variant names:

• chr19-12764912-G-T
• rs748977735
• NM_013312.3:c.1729C>A

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 2P and 5B. PM2 BP4_Strong BP7

The NM_013312.3(HOOK2):​c.1729C>A​(p.Arg577Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,848 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: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: HOOK2 NM_013312.3 synonymous
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.84
• Publications: 0 publications found

Genes affected

HOOK2 (HGNC:19885): (hook microtubule tethering protein 2) Hook proteins are cytosolic coiled-coil proteins that contain conserved N-terminal domains, which attach to microtubules, and more divergent C-terminal domains, which mediate binding to organelles. The Drosophila Hook protein is a component of the endocytic compartment.[supplied by OMIM, Apr 2004]

ACMG classification

Our verdict: Likely_benign. The variant received -3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.58).
• BP7: Synonymous conserved (PhyloP=1.84 with no splicing effect.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_013312.3. 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
	HOOK2	NM_013312.3	MANE Select	c.1729C>A	p.Arg577Arg	synonymous	Exon 20 of 23	NP_037444.2	Q96ED9-1
	HOOK2	NM_001400041.1		c.1831C>A	p.Arg611Arg	synonymous	Exon 19 of 22	NP_001386970.1
	HOOK2	NM_001100176.2		c.1723C>A	p.Arg575Arg	synonymous	Exon 19 of 22	NP_001093646.1	Q96ED9-2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	HOOK2	ENST00000397668.8	TSL:1 MANE Select	c.1729C>A	p.Arg577Arg	synonymous	Exon 20 of 23	ENSP00000380785.2	Q96ED9-1
	HOOK2	ENST00000264827.9	TSL:1	c.1723C>A	p.Arg575Arg	synonymous	Exon 19 of 22	ENSP00000264827.4	Q96ED9-2
	HOOK2	ENST00000894580.1		c.2017C>A	p.Arg673Arg	synonymous	Exon 19 of 22	ENSP00000564639.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461848 Hom.: 0 Cov.: 31 AF XY: 0.00000138 AC XY: 1 AN XY: 727224

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44716

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

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53396

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

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1112002

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.58
CADD	Benign	13
DANN	Benign	0.63
PhyloP100		1.8

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.18		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: rs748977735; hg19: chr19-12875726;