11-67490920-G-C

Variant names:

• chr11-67490920-G-C
• rs4930199
• NM_003977.4:c.920G>C

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_003977.4(AIP):​c.920G>C​(p.Arg307Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R307Q) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 33)
• Consequence: AIP NM_003977.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.468

Genes affected

AIP (HGNC:358): (aryl hydrocarbon receptor interacting protein) The protein encoded by this gene is a receptor for aryl hydrocarbons and a ligand-activated transcription factor. The encoded protein is found in the cytoplasm as part of a multiprotein complex, but upon binding of ligand is transported to the nucleus. This protein can regulate the expression of many xenobiotic metabolizing enzymes. Also, the encoded protein can bind specifically to and inhibit the activity of hepatitis B virus. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Dec 2014]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
AIP	NM_003977.4	c.920G>C	p.Arg307Pro	missense_variant	Exon 6 of 6	ENST00000279146.8	NP_003968.3
AIP	NM_001302959.2	c.743G>C	p.Arg248Pro	missense_variant	Exon 6 of 6		NP_001289888.1
AIP	NM_001302960.2	c.*60G>C		3_prime_UTR_variant	Exon 6 of 6		NP_001289889.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
AIP	ENST00000279146.8	c.920G>C	p.Arg307Pro	missense_variant	Exon 6 of 6	1	NM_003977.4	ENSP00000279146.3

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not provided Uncertain:1

Jun 23, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces arginine, which is basic and polar, with proline, which is neutral and non-polar, at codon 307 of the AIP protein (p.Arg307Pro). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with AIP-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.88
BayesDel_noAF	Benign	-0.68
CADD	Benign	23
LIST_S2	Uncertain	0.94	D
MetaRNN	Uncertain	0.73	D
Sift4G	Benign	0.062	T
Vest4		0.68
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.0
gMVP		0.90

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: rs4930199; hg19: chr11-67258391;