rs1864815

Positions:

• chr2-43816313-A-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_022436.3(ABCG5):​c.1650-1724T>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.404 in 152,010 control chromosomes in the GnomAD database, including 13,681 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 0.40 (13681 hom., cov: 32)
• Consequence: ABCG5 NM_022436.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.00

Genes affected

ABCG5 (HGNC:13886): (ATP binding cassette subfamily G member 5) The protein encoded by this gene is a member of the superfamily of ATP-binding cassette (ABC) transporters. ABC proteins transport various molecules across extra- and intra-cellular membranes. ABC genes are divided into seven distinct subfamilies (ABC1, MDR/TAP, MRP, ALD, OABP, GCN20, White). This protein is a member of the White subfamily. The protein encoded by this gene functions as a half-transporter to limit intestinal absorption and promote biliary excretion of sterols. It is expressed in a tissue-specific manner in the liver, colon, and intestine. This gene is tandemly arrayed on chromosome 2, in a head-to-head orientation with family member ABCG8. Mutations in this gene may contribute to sterol accumulation and atheroschlerosis, and have been observed in patients with sitosterolemia. [provided by RefSeq, Jul 2008]

ABCG5 (HGNC:):

DYNC2LI1 (HGNC:24595): (dynein cytoplasmic 2 light intermediate chain 1) This gene encodes a protein that is a component of the dynein-2 microtubule motor protein complex that plays a role in the retrograde transport of cargo in primary cilia via the intraflagellar transport system. This gene is ubiquitously expressed and its protein, which localizes to the axoneme and Golgi apparatus, interacts directly with the cytoplasmic dynein 2 heavy chain 1 protein to form part of the multi-protein dynein-2 complex. Mutations in this gene produce defects in the dynein-2 complex which result in several types of ciliopathy including short-rib thoracic dysplasia 15 with polydactyly (SRTD15). Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Feb 2017]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-1.01).
• BA1: GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.584 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ABCG5	NM_022436.3	c.1650-1724T>A		intron_variant		ENST00000405322.8	NP_071881.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ABCG5	ENST00000405322.8	c.1650-1724T>A		intron_variant		1	NM_022436.3	ENSP00000384513.2
ABCG5	ENST00000486512.5	n.2171-1724T>A		intron_variant		1
ABCG5	ENST00000409962.1	n.1933-1724T>A		intron_variant		2
ABCG5	ENST00000644754.1	n.2034-1724T>A		intron_variant

Frequencies

GnomAD3 genomes AF: 0.403 AC: 61259 AN: 151892 Hom.: 13627 Cov.: 32

Gnomad AFR AF: 0.589

Gnomad AMI AF: 0.219

Gnomad AMR AF: 0.444

Gnomad ASJ AF: 0.349

Gnomad EAS AF: 0.141

Gnomad SAS AF: 0.456

Gnomad FIN AF: 0.301

Gnomad MID AF: 0.465

Gnomad NFE AF: 0.318

Gnomad OTH AF: 0.394

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.404 AC: 61364 AN: 152010 Hom.: 13681 Cov.: 32 AF XY: 0.403 AC XY: 29912 AN XY: 74302

Gnomad4 AFR AF: 0.590

Gnomad4 AMR AF: 0.445

Gnomad4 ASJ AF: 0.349

Gnomad4 EAS AF: 0.141

Gnomad4 SAS AF: 0.454

Gnomad4 FIN AF: 0.301

Gnomad4 NFE AF: 0.318

Gnomad4 OTH AF: 0.396

Alfa AF: 0.365 Hom.: 1534

Bravo AF: 0.419

Asia WGS AF: 0.319 AC: 1113 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-1.0
CADD	Benign	0.35
DANN	Benign	0.59

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

Publications

LitVar

Other links and lift over

dbSNP: rs1864815; hg19: chr2-44043452;