14-22773945-G-C

Variant names:

• chr14-22773945-G-C
• rs386833808
• NM_003982.4:c.1417C>G

Variant summary

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

The NM_003982.4(SLC7A7):​c.1417C>G​(p.Arg473Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000131 in 152,202 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. R473R) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.000013 (0 hom., cov: 32)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: SLC7A7 NM_003982.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 2.27
• 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: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, ClinGen, Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_003982.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC7A7	NM_003982.4	MANE Select	c.1417C>G	p.Arg473Gly	missense	Exon 9 of 10	NP_003973.3
	SLC7A7	NM_001126105.3		c.1417C>G	p.Arg473Gly	missense	Exon 10 of 11	NP_001119577.1	A0A0S2Z502
	SLC7A7	NM_001126106.4		c.1417C>G	p.Arg473Gly	missense	Exon 10 of 11	NP_001119578.1	Q9UM01

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SLC7A7	ENST00000674313.1	MANE Select	c.1417C>G	p.Arg473Gly	missense	Exon 9 of 10	ENSP00000501493.1	Q9UM01
	SLC7A7	ENST00000397528.8	TSL:1	c.1417C>G	p.Arg473Gly	missense	Exon 10 of 11	ENSP00000380662.4	Q9UM01
	SLC7A7	ENST00000397529.6	TSL:1	c.1417C>G	p.Arg473Gly	missense	Exon 9 of 10	ENSP00000380663.2	Q9UM01

Frequencies

GnomAD3 genomes AF: 0.0000131 AC: 2 AN: 152202 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.0000655

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 Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1461814 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 727214

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5712

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1112010

Other (OTH) AF: 0.00 AC: 0 AN: 60388

GnomAD4 genome AF: 0.0000131 AC: 2 AN: 152202 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74354

African (AFR) AF: 0.00 AC: 0 AN: 41448

American (AMR) AF: 0.0000655 AC: 1 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5196

South Asian (SAS) AF: 0.00 AC: 0 AN: 4838

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10612

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.0000147 AC: 1 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2092

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000756

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.16
BayesDel_addAF	Pathogenic	0.21	D
BayesDel_noAF	Uncertain	0.060
CADD	Benign	18
DANN	Benign	0.97
DEOGEN2	Benign	0.21	T
Eigen	Benign	-0.0062
Eigen_PC	Benign	0.20
FATHMM_MKL	Uncertain	0.92	D
LIST_S2	Benign	0.67	T
M_CAP	Benign	0.074	D
MetaRNN	Uncertain	0.63	D
MetaSVM	Uncertain	-0.062	T
MutationAssessor	Uncertain	2.3	M
PhyloP100		2.3
PrimateAI	Benign	0.33	T
PROVEAN	Benign	-1.4	N
REVEL	Uncertain	0.42
Sift	Benign	0.46	T
Sift4G	Benign	0.41	T
Polyphen		0.0010	B
Vest4		0.65
MutPred		0.54		Loss of stability (P = 0.0251)
MVP		0.64
MPC		0.25
ClinPred		0.88	D
GERP RS		6.0
Varity_R		0.19
gMVP		0.58
Mutation Taster		=44/56	disease causing

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: rs386833808; hg19: chr14-23243154;