12-21844499-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PP2

The NM_020297.4(ABCC9):​c.3299C>T​(p.Thr1100Ile) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,244 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

ABCC9
NM_020297.4 missense

Scores

5
10
4

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.08
Variant links:
Genes affected
ABCC9 (HGNC:60): (ATP binding cassette subfamily C member 9) 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 protein is thought to form ATP-sensitive potassium channels in cardiac, skeletal, and vascular and non-vascular smooth muscle. Protein structure suggests a role as the drug-binding channel-modulating subunit of the extra-pancreatic ATP-sensitive potassium channels. Mutations in this gene are associated with cardiomyopathy dilated type 1O. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Apr 2011]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a topological_domain Cytoplasmic (size 71) in uniprot entity ABCC9_HUMAN there are 7 pathogenic changes around while only 1 benign (88%) in NM_020297.4
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ABCC9. . Gene score misZ 4.9694 (greater than the threshold 3.09). Trascript score misZ 7.023 (greater than threshold 3.09). GenCC has associacion of gene with hypertrichotic osteochondrodysplasia Cantu type, dilated cardiomyopathy, acromegaloid facial appearance syndrome, Brugada syndrome, atrial fibrillation, familial, 12, intellectual disability and myopathy syndrome, dilated cardiomyopathy 1O, familial isolated dilated cardiomyopathy, hypertrichosis-acromegaloid facial appearance syndrome.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ABCC9NM_020297.4 linkuse as main transcriptc.3299C>T p.Thr1100Ile missense_variant 28/40 ENST00000261200.9 NP_064693.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ABCC9ENST00000261200.9 linkuse as main transcriptc.3299C>T p.Thr1100Ile missense_variant 28/405 NM_020297.4 ENSP00000261200 P4O60706-2
ENST00000539874.1 linkuse as main transcriptn.331+13305G>A intron_variant, non_coding_transcript_variant 3

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461244
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726954
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:
9.00e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterresearchBiesecker Lab/Clinical Genomics Section, National Institutes of HealthJun 24, 2013- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.36
BayesDel_addAF
Pathogenic
0.36
D
BayesDel_noAF
Pathogenic
0.28
CADD
Pathogenic
27
DANN
Uncertain
0.98
DEOGEN2
Pathogenic
0.80
.;.;D
Eigen
Uncertain
0.21
Eigen_PC
Uncertain
0.32
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.90
D;D;D
M_CAP
Benign
0.064
D
MetaRNN
Uncertain
0.68
D;D;D
MetaSVM
Uncertain
-0.051
T
MutationAssessor
Benign
0.085
N;.;N
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.90
D
PROVEAN
Uncertain
-3.3
D;D;D
REVEL
Uncertain
0.61
Sift
Benign
0.055
T;T;T
Sift4G
Uncertain
0.041
D;T;D
Polyphen
0.99
D;.;P
Vest4
0.87
MutPred
0.41
Loss of catalytic residue at S1097 (P = 0.1026);.;Loss of catalytic residue at S1097 (P = 0.1026);
MVP
0.94
MPC
0.84
ClinPred
0.92
D
GERP RS
5.0
Varity_R
0.43
gMVP
0.87

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs201358406; hg19: chr12-21997433; API