14-22776092-T-G

Variant names:

• chr14-22776092-T-G
• rs3850290
• NM_003982.4:c.894+103A>C

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The NM_003982.4(SLC7A7):​c.894+103A>C variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000291 in 1,373,328 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000029 (0 hom.)
• Consequence: SLC7A7 NM_003982.4 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.142
• Publications: 7 publications found

Genes affected

SLC7A7 (HGNC:11065): (solute carrier family 7 member 7) The protein encoded by this gene is the light subunit of a cationic amino acid transporter. This sodium-independent transporter is formed when the light subunit encoded by this gene dimerizes with the heavy subunit transporter protein SLC3A2. This transporter is found in epithelial cell membranes where it transfers cationic and large neutral amino acids from the cell to the extracellular space. Defects in this gene are a cause of lysinuric protein intolerance (LPI). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2011]

SLC7A7 Gene-Disease associations (from GenCC):

• lysinuric protein intolerance

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: PanelApp Australia, Orphanet, Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.78).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SLC7A7	NM_003982.4	c.894+103A>C		intron_variant	Intron 5 of 9	ENST00000674313.1	NP_003973.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SLC7A7	ENST00000674313.1	c.894+103A>C		intron_variant	Intron 5 of 9		NM_003982.4	ENSP00000501493.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000291 AC: 4 AN: 1373328 Hom.: 0 Cov.: 22 AF XY: 0.00000436 AC XY: 3 AN XY: 688118

African (AFR) AF: 0.00 AC: 0 AN: 31950

American (AMR) AF: 0.00 AC: 0 AN: 44582

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25526

East Asian (EAS) AF: 0.00 AC: 0 AN: 39300

South Asian (SAS) AF: 0.00 AC: 0 AN: 84188

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53324

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5622

European-Non Finnish (NFE) AF: 0.00000388 AC: 4 AN: 1031382

Other (OTH) AF: 0.00 AC: 0 AN: 57454

GnomAD4 genome Cov.: 31

Alfa AF: 0.00 Hom.: 76985

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.78
CADD	Benign	3.9
DANN	Benign	0.78
PhyloP100		-0.14
PromoterAI		0.022	Neutral

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

Other links and lift over

dbSNP: rs3850290; hg19: chr14-23245301;