chr11-119156946-G-C

Variant names:

• chr11-119156946-G-C
• rs201193587
• NM_022169.5:c.1000G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_022169.5(ABCG4):​c.1000G>C​(p.Ala334Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,724 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/19 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A334T) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ABCG4 NM_022169.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.387
• Publications: 0 publications found

Genes affected

ABCG4 (HGNC:13884): (ATP binding cassette subfamily G member 4) The protein encoded by this gene is a member of the ATP-binding cassette (ABC) transporter superfamily. 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). The encoded protein is a member of the White subfamily and plays an important role in cellular cholesterol homeostasis. This protein functions as either a homodimer or as a heterodimer with another ABC subfamily protein such as ABCG1. [provided by RefSeq, Jan 2017]

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.07375023).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_022169.5. 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
	ABCG4	NM_022169.5	MANE Select	c.1000G>C	p.Ala334Pro	missense	Exon 9 of 15	NP_071452.2
	ABCG4	NM_001142505.1		c.1000G>C	p.Ala334Pro	missense	Exon 9 of 15	NP_001135977.1	Q9H172-1
	ABCG4	NM_001348191.2		c.1000G>C	p.Ala334Pro	missense	Exon 9 of 15	NP_001335120.1	Q9H172-1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ABCG4	ENST00000619701.5	TSL:1 MANE Select	c.1000G>C	p.Ala334Pro	missense	Exon 9 of 15	ENSP00000481728.1	Q9H172-1
	ABCG4	ENST00000622721.1	TSL:1	c.1000G>C	p.Ala334Pro	missense	Exon 8 of 14	ENSP00000484289.1	Q9H172-1
	ABCG4	ENST00000533694.5	TSL:1	n.1913G>C		non_coding_transcript_exon	Exon 7 of 10

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461724 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727174

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

American (AMR) AF: 0.00 AC: 0 AN: 44686

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26124

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

South Asian (SAS) AF: 0.00 AC: 0 AN: 86228

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53412

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111948

Other (OTH) AF: 0.00 AC: 0 AN: 60380

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.090
BayesDel_addAF	Benign	-0.17	T
BayesDel_noAF	Benign	-0.48
CADD	Benign	9.4
DANN	Benign	0.94
DEOGEN2	Benign	0.12	T
Eigen	Benign	-1.3
Eigen_PC	Benign	-1.3
FATHMM_MKL	Benign	0.16	N
LIST_S2	Benign	0.78	T
M_CAP	Benign	0.017	T
MetaRNN	Benign	0.074	T
MetaSVM	Benign	-0.78	T
MutationAssessor	Benign	1.4	L
PhyloP100		0.39
PrimateAI	Benign	0.32	T
Sift4G	Benign	0.30	T
Polyphen		0.0	B
Vest4		0.079
MutPred		0.43		Loss of sheet (P = 0.0104)
MVP		0.43
ClinPred		0.11	T
GERP RS		-2.3
Varity_R		0.091
gMVP		0.76
Mutation Taster		=89/11	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.16		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: rs201193587; hg19: chr11-119027656;