chr13-95062708-G-A

Position:

chr13-95062708-G-A

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_005845.5(ABCC4):c.3362C>T(p.Pro1121Leu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000186 in 1,613,288 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

ABCC4
NM_005845.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.78

Variant links:

Genes affected

ABCC4 (HGNC:55): (ATP binding cassette subfamily C member 4 (PEL blood group)) 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 MRP subfamily which is involved in multi-drug resistance. This family member plays a role in cellular detoxification as a pump for its substrate, organic anions. It may also function in prostaglandin-mediated cAMP signaling in ciliogenesis. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Sep 2014]

ABCC4 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.974

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
ABCC4	NM_005845.5 linkuse as main transcript	c.3362C>T	p.Pro1121Leu	missense_variant	26/31	ENST00000645237.2
ABCC4	NM_001301829.2 linkuse as main transcript	c.3221C>T	p.Pro1074Leu	missense_variant	25/30
ABCC4	XM_047430034.1 linkuse as main transcript	c.3233C>T	p.Pro1078Leu	missense_variant	26/31
ABCC4	XM_047430035.1 linkuse as main transcript	c.2813C>T	p.Pro938Leu	missense_variant	23/28

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Appris	UniProt
ABCC4	ENST00000645237.2 linkuse as main transcript	c.3362C>T	p.Pro1121Leu	missense_variant	26/31	NM_005845.5	P1	O15439-1
ABCC4	ENST00000646439.1 linkuse as main transcript	c.3221C>T	p.Pro1074Leu	missense_variant	25/30			O15439-2
ABCC4	ENST00000643051.1 linkuse as main transcript	c.*987C>T		3_prime_UTR_variant, NMD_transcript_variant	27/33
ABCC4	ENST00000643842.1 linkuse as main transcript	c.*3408C>T		3_prime_UTR_variant, NMD_transcript_variant	27/32

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

151938

Hom.:

Cov.:

show subpopulations

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:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461350

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726946

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

151938

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74200

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 27, 2023

The c.3362C>T (p.P1121L) alteration is located in exon 26 (coding exon 26) of the ABCC4 gene. This alteration results from a C to T substitution at nucleotide position 3362, causing the proline (P) at amino acid position 1121 to be replaced by a leucine (L). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.69

BayesDel_addAF

Pathogenic

0.47

BayesDel_noAF

Pathogenic

0.44

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.68

D;D;.

Eigen

Uncertain

0.67

Eigen_PC

Pathogenic

0.73

FATHMM_MKL

Pathogenic

0.99

M_CAP

Uncertain

0.13

MetaRNN

Pathogenic

0.97

D;D;D

MetaSVM

Uncertain

0.78

MutationAssessor

Uncertain

2.1

M;M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Pathogenic

0.82

Polyphen

0.53

P;P;P

Vest4

0.71

MutPred

0.91

Loss of catalytic residue at M1117 (P = 0.0427);Loss of catalytic residue at M1117 (P = 0.0427);.;

MVP

0.93

MPC

0.87

ClinPred

0.97

GERP RS

6.2

Varity_R

0.59

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over