rs749913021

Variant names:

• chr19-32862220-G-A
• rs749913021
• NM_014270.5:c.605-3C>T

Your query was ambiguous. Multiple possible variants found:

• chr19-32862220-G-A
• chr19-32862220-G-T

Variant summary

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

The NM_014270.5(SLC7A9):​c.605-3C>T variant causes a splice region, intron change. The variant allele was found at a frequency of 0.000000685 in 1,459,256 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 predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: SLC7A9 NM_014270.5 splice_region, intron
• Scores: Splicing: ADA: 0.07538
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.49
• Publications: 0 publications found

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]

SLC7A9 Gene-Disease associations (from GenCC):

• cystinuria

  Inheritance: AR, AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Laboratory for Molecular Medicine
• cystinuria type B

  Inheritance: SD Classification: SUPPORTIVE Submitted by: Orphanet

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 (BayesDel_noAF=-0.27).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_014270.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC7A9	NM_014270.5	MANE Select	c.605-3C>T		splice_region intron	N/A	NP_055085.1
	SLC7A9	NM_001126335.2		c.605-3C>T		splice_region intron	N/A	NP_001119807.1
	SLC7A9	NM_001243036.2		c.605-3C>T		splice_region intron	N/A	NP_001229965.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC7A9	ENST00000023064.9	TSL:1 MANE Select	c.605-3C>T		splice_region intron	N/A	ENSP00000023064.3
	SLC7A9	ENST00000587772.1	TSL:1	c.605-3C>T		splice_region intron	N/A	ENSP00000468439.1
	SLC7A9	ENST00000590341.5	TSL:1	c.605-3C>T		splice_region intron	N/A	ENSP00000464822.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1459256 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726198

African (AFR) AF: 0.00 AC: 0 AN: 33428

American (AMR) AF: 0.00 AC: 0 AN: 44718

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26122

East Asian (EAS) AF: 0.00 AC: 0 AN: 39688

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86214

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53374

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5766

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1109646

Other (OTH) AF: 0.00 AC: 0 AN: 60300

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.27
CADD	Benign	16
DANN	Benign	0.94
PhyloP100		5.5

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.075
dbscSNV1_RF	Benign	0.14
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: rs749913021; hg19: chr19-33353126;