19-32833144-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP3PP5

The NM_014270.5(SLC7A9):​c.1399+5G>C variant causes a splice donor 5th base, intron change. The variant allele was found at a frequency of 0.000000684 in 1,461,366 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (no stars).

Frequency

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

Consequence

SLC7A9
NM_014270.5 splice_donor_5th_base, intron

Scores

2
Splicing: ADA: 0.9938
2

Clinical Significance

Likely pathogenic no assertion criteria provided P:2

Conservation

PhyloP100: 5.73
Variant links:
Genes affected
SLC7A9 (HGNC:11067): (solute carrier family 7 member 9) This gene encodes a protein that belongs to a family of light subunits of amino acid transporters. This protein plays a role in the high-affinity and sodium-independent transport of cystine and neutral and dibasic amino acids, and appears to function in the reabsorption of cystine in the kidney tubule. Mutations in this gene cause non-type I cystinuria, a disease that leads to cystine stones in the urinary system due to impaired transport of cystine and dibasic amino acids. Alternate transcript variants, which encode the same protein, have been found for this gene. [provided by RefSeq, Jul 2011]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF, max_spliceai. No scorers claiming Uncertain. No scorers claiming Benign.
PP5
Variant 19-32833144-C-G is Pathogenic according to our data. Variant chr19-32833144-C-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 804181.Status of the report is no_assertion_criteria_provided, 0 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SLC7A9NM_014270.5 linkuse as main transcriptc.1399+5G>C splice_donor_5th_base_variant, intron_variant ENST00000023064.9 NP_055085.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SLC7A9ENST00000023064.9 linkuse as main transcriptc.1399+5G>C splice_donor_5th_base_variant, intron_variant 1 NM_014270.5 ENSP00000023064 P1
ENST00000590069.1 linkuse as main transcriptn.411C>G non_coding_transcript_exon_variant 2/25

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461366
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
727006
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: Likely pathogenic
Submissions summary: Pathogenic:2
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Cystine urolithiasis Pathogenic:1
Likely pathogenic, no assertion criteria providedresearchThe Laboratory of Genetics and Metabolism, Hunan Children’s Hospital-- -
Cystinuria Pathogenic:1
Likely pathogenic, no assertion criteria providedclinical testingChinese Inherited Urolithiasis Consortium, The Affiliated Yantai Yuhuangding Hospital of Qingdao UniversityAug 26, 2024Variant_type:truncating/MutationTaster:NONE/CADD:NONE/phyloP:NONE/phastCons:NONE/gnomAD_exome_EastAsian:NONE/ExAC_EastAsian:NONE/dbSNP:NONE -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.26
CADD
Benign
20
DANN
Benign
0.96

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.99
dbscSNV1_RF
Pathogenic
0.85
SpliceAI score (max)
0.86
Details are displayed if max score is > 0.2
DS_DL_spliceai
0.86
Position offset: 5

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: rs1599648136; hg19: chr19-33324050; API