chr7-4788774-G-T

Variant names:

• chr7-4788774-G-T
• rs3750013
• NM_014855.3:c.1596-66G>T

Variant summary

Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP4_Strong BS1 BS2

The NM_014855.3(AP5Z1):​c.1596-66G>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000258 in 1,386,292 control chromosomes in the GnomAD database, including 8 homozygotes. 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 0.00020 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00027 (8 hom.)
• Consequence: AP5Z1 NM_014855.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.62
• Publications: 4 publications found

Genes affected

AP5Z1 (HGNC:22197): (adaptor related protein complex 5 subunit zeta 1) This gene was identified by genome-wide screen for genes involved in homologous recombination DNA double-strand break repair (HR-DSBR). The encoded protein was found in a complex with other proteins that have a role in HR-DSBR. Knockdown of this gene reduced homologous recombination, and mutations in this gene were found in patients with spastic paraplegia. It was concluded that this gene likely encodes a helicase (PMID:20613862). [provided by RefSeq, Jan 2011]

MIR4656 (HGNC:41749): (microRNA 4656) microRNAs (miRNAs) are short (20-24 nt) non-coding RNAs that are involved in post-transcriptional regulation of gene expression in multicellular organisms by affecting both the stability and translation of mRNAs. miRNAs are transcribed by RNA polymerase II as part of capped and polyadenylated primary transcripts (pri-miRNAs) that can be either protein-coding or non-coding. The primary transcript is cleaved by the Drosha ribonuclease III enzyme to produce an approximately 70-nt stem-loop precursor miRNA (pre-miRNA), which is further cleaved by the cytoplasmic Dicer ribonuclease to generate the mature miRNA and antisense miRNA star (miRNA*) products. The mature miRNA is incorporated into a RNA-induced silencing complex (RISC), which recognizes target mRNAs through imperfect base pairing with the miRNA and most commonly results in translational inhibition or destabilization of the target mRNA. The RefSeq represents the predicted microRNA stem-loop. [provided by RefSeq, Sep 2009]

ACMG classification

Our verdict: Benign. The variant received -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.86).
• BS1: Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000197 (30/152240) while in subpopulation SAS AF = 0.00602 (29/4814). AF 95% confidence interval is 0.00431. There are 0 homozygotes in GnomAd4. There are 24 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
• BS2: High Homozygotes in GnomAdExome4 at 8 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AP5Z1	NM_014855.3	c.1596-66G>T		intron_variant	Intron 12 of 16	ENST00000649063.2	NP_055670.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AP5Z1	ENST00000649063.2	c.1596-66G>T		intron_variant	Intron 12 of 16		NM_014855.3	ENSP00000497815.1

Frequencies

GnomAD3 genomes AF: 0.000197 AC: 30 AN: 152122 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: 0.00602

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000147

Gnomad OTH AF: 0.00

GnomAD4 exome AF: 0.000266 AC: 328 AN: 1234052 Hom.: 8 Cov.: 18 AF XY: 0.000412 AC XY: 249 AN XY: 604444

African (AFR) AF: 0.0000711 AC: 2 AN: 28140

American (AMR) AF: 0.00 AC: 0 AN: 27346

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 19666

East Asian (EAS) AF: 0.00 AC: 0 AN: 34580

South Asian (SAS) AF: 0.00475 AC: 312 AN: 65748

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 39888

Middle Eastern (MID) AF: 0.000858 AC: 4 AN: 4660

European-Non Finnish (NFE) AF: 0.00000416 AC: 4 AN: 962320

Other (OTH) AF: 0.000116 AC: 6 AN: 51704

GnomAD4 genome AF: 0.000197 AC: 30 AN: 152240 Hom.: 0 Cov.: 33 AF XY: 0.000322 AC XY: 24 AN XY: 74428

African (AFR) AF: 0.00 AC: 0 AN: 41554

American (AMR) AF: 0.00 AC: 0 AN: 15306

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

East Asian (EAS) AF: 0.00 AC: 0 AN: 5170

South Asian (SAS) AF: 0.00602 AC: 29 AN: 4814

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10618

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 67990

Other (OTH) AF: 0.00 AC: 0 AN: 2110

Alfa AF: 0.00 Hom.: 20

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.86
CADD	Benign	0.22
DANN	Benign	0.87
PhyloP100		-2.6
Mutation Taster		=100/0	polymorphism

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

Other links and lift over

dbSNP: rs3750013; hg19: chr7-4828405;