Table 1. Monogenic causative mutations of 8 recessive genes detected in 17 individuals from 12 families with NL/NC.
Family Individual |
Nucleotide change |
Amino acid change |
State | PPh2 | Evolutionary conservation |
Ref. | Ethnicity (Sex) |
Age of Onset |
Family history |
Consangu nity |
Phenotype prior to WES |
---|---|---|---|---|---|---|---|---|---|---|---|
| |||||||||||
AGXT, Primary hyperoxaluria type I | |||||||||||
| |||||||||||
B1468 21 | c.1079G>C | p.Arg360Pro | het | 1 | C. elegans | Novela | Egyptian (M) | 6 | Y (1 sibling affected) | N | NL/NC, CKD, hyperoxaluria NC, microscopic hematuria |
c.121G>A | p.Gly41Arg | het | 0.99 | D. melanogaster | Y24 | ||||||
B1468 24 | c.1079G>C | p.Arg360Pro | het | 1 | C. elegans | Novela | Egyptian (F) | 2.5 | |||
c.121G>A | p.Gly41Arg | het | 0.99 | D. melanogaster | Y24 | ||||||
B1230_21 | c.731T>C | p.Ile244Thr | hom | 0.4 | M. musculus | Y25 | Egyptian (M) | 1 | Y | Y | NL, CKD, hyperoxaluria |
B1646_21 | c.481G>A | p.Gly161Ser | hom | 0.99 | C. elegans | Y26 | Middle Eastern (M) | 3 | Y (cousin) | Y | Recurrent bilateral NL, CKD, hyperoxaluria |
| |||||||||||
ATP6V1B1, Renal Tubular acidosis with deafness | |||||||||||
| |||||||||||
B1121 | c.242T>C | p.Leu81Pro | hom | 1 | C. elegans | Y27 | European (M) | 1.7 | N | N | NC, RTA, neurodevelopmental delay |
| |||||||||||
CLDN16, Hypomagnesemia, familial with hypercalciuria and nephrocalcinosis | |||||||||||
| |||||||||||
B1645_21 | c.695T>G | p.Phe232Cys | hom | 0.99 | D. rerio | Middle Eastern (F) | 4 | Y (1 sibling affected) | Y | Bilateral NL, hypomagnesemia | |
| |||||||||||
CLDN19, Hypomagnesemia/renal/ophthalmological abnormalities | |||||||||||
| |||||||||||
A4283_21 | c.535G>A | p.Gly179Ser | hom | 0.99 | D. rerio | Novela | South Asian (F) | 11 | Y (2 siblings affected) | Y | NC, CKD |
A4283_22 | c.535G>A | p.Gly179Ser | hom | 0.99 | D. rerio | Novela | South Asian (M) | 5 | NC, CKD | ||
A4283_23 | c.535G>A | p.Gly179Ser | hom | 0.99 | D. rerio | Novela | South Asian (M) | 4 | NC, CKD | ||
| |||||||||||
GRHPR, Primary hyperoxaluria type II | |||||||||||
| |||||||||||
B35 21 | c.103del | p.Asp35Thrfs*11 | het | NA | NA | Y28 | American (M) | 0.08 | Y (1 sibling affected) | N | NL/NC, hyperoxaluria, hypercalciuria |
c.404+5G>A | Splice site | het | NA | NA | Y29 | American (M) | |||||
B35_22 | c.103del | p.Asp35Thrfs*11 | het | NA | NA | Y28 | 3 | ||||
c.404+5G>A | Splice site | het | NA | NA | Y29 | NL/NC, hyperoxaluria. | |||||
| |||||||||||
SLC3A1, Cystinuria, type A | |||||||||||
| |||||||||||
B1648_21 | c.592delG | p.Ala198fs | hom | NA | NA | Y30 | Middle Eastern (M) | 3 | N | N | NL, 100% cysteine stone on analysis |
| |||||||||||
SLC12A1, Bartter syndrome type 2 | |||||||||||
| |||||||||||
B917_21 | c.769G>A | p.Gly257Ser | het | 1 | C. elegans | Y31 | Caucasian (M) | 1 | N | N | NL/NC, polyuria, polydipsia, hypercalciuria |
c. 1424G>A | p.Cys475Tyr | het | 0.99 | D. melanogaster | Novela | ||||||
B1508_21 | c.1157delT | p.Ile386fs | hom | NA | NA | Novela | European (F) | 0.8 | Y (1 sibling affected) | Y | NC, hypercalciuria, failure to thrive, metabolic derangements NC, hypercalciuria, failure to thrive, metabolic derangements |
B1508_22 | c.1157delT | p.Ile386fs | hom | NA | NA | Novela | European (M) | 1.2 | |||
| |||||||||||
SLC34A1, Infantile hypercalcemia/hypophosphatemia/nephrolithiasis | |||||||||||
| |||||||||||
B1437_21 | c. 644+1 G>A | Splice site | het | NA | NA | Y6 | Egyptian (M) | 3 | Y-(relatives) | N | NC, hypercalciuria |
c.1204G>C | p.Gly402Arg | het | 1 | D. rerio | Novela | ||||||
B1602_21 | c.1724C>T | p.Thr575Ile | hom | .61 | D. melanogaster | Novela | Caucasian (M) | 0.2 | Y | Y | NC, hypercalcemia |
AGXT, Alanine-glyoxalate aminotransferase; ATP6V1B1, ATPase, H+ transporting, lysosomal, 56/58-KD, V1 Subunit B, Isoform 1; BS1, Bartter syndrome type 1; CKD, chronic kidney disease; CLDN16, claudin16; CLDN19, claudin19; DRTAD, distal renal tubular acidosis with progressive deafness; F, female; GRHPR Glyoxalate Reductase/hydroxypyruvate reducatse; het, heterozygous; hom, homozygous; hx, history; M, male; N, No; NA, not applicable; NC, nephrocalcinosis; NL, nephrolithiasis; Novel, mutation detected for the first time in this study; PPh2, PolyPhen-2; RTA, renal tubular acidosis; SLC3A1, solute carrier family 3; SLC12A1, Solute carrier family 12; SLC34A1, Solute carrier family 34; Y, Yes.
Different mutations at this position are reported.