Table 1.
# | Nucleotide substitution | Amino acid substitution | GNE exon | Ethnicity | Protein domain | Refs |
---|---|---|---|---|---|---|
1 | c.C31T | p.R11W | 2 | India | Epimerase | [33] |
2 | c.G38C | p.C13S | 2 | Japan, Korea | Epimerase | [24, 27] |
3 | c.79C>T | p.P27S | 2 | Italy | Epimerase | [28] |
4 | c.86T>C | p.M29T | 2 | Korea | Epimerase | [27] |
5 | c.107C>T | p.P36L | 2 | Italy | Epimerase | [21] |
6 | ins10 bp | Frameshift* | 2 | Japan | Epimerase | [5] |
7 | c.265G>C | p.G89R | 3 | Thailand | Epimerase | [10] |
8 | c.386G>A | p.R129Q | 3 | Japan, Korea | Epimerase | [24, 27] |
9 | c.396C>G | p.H132Q | 3 | Japan | Epimerase | [5] |
10 | c.404G>T | p.G135V | 3 | USA, Irish, English | Epimerase | [30] |
11 | c.484C>T | p.R162C | 3 | Italy | Epimerase | [71] |
12 | c.511A>G | p.M171V | 3 | Italy | Epimerase | [23] |
13 | c.578A>T | p.D176V | 3 | Japan | Epimerase | [5, 24] |
14 | c.529C>T | p.R177C | 3 | Japan | Epimerase | [5] |
15 | c.598A>T | p.I200F | 3 | USA | Epimerase | [21] |
16 | c.605G>T | p.R202L | 3 | Greece | Epimerase | [33] |
17 | c.616G>A | p.G206S | 3 | Italy | Epimerase | [28] |
18 | c.617delG | p.G206fsX4 | 3 | Italy | Epimerase | [28] |
19 | c.647T>C | p.V216A | 4 | USA | Epimerase | [33, 72] |
20 | c.673G>A | p.D225N | 4 | Bahamas | Epimerase | [19] |
21 | c.722T>G | p.I241S | 4 | Taiwan | Epimerase | [29, 73] |
22 | c.736C>T | p.R246W | 4 | USA | Epimerase | [22, 30] |
23 | c.737G>A | p.R246Q | 4 | Bahamas, Italy, Taiwan | Epimerase | [19, 28, 29] |
24 | IVS4+4A>G | Exon 4 skipping | Intron 4 | Japan | Epimerase | [5] |
25 | c.829C>T | p.R277C | 5 | France | Epimerase | [32] |
26 | c.847C>T | p.P283S | 5 | Japan | Epimerase | [24] |
27 | c.907–908TG>GT | p.C303V | 5 | Japan | Epimerase | [25] |
28 | c.909T>A | p.C303X | 5 | India | Epimerase | [19] |
29 | c.917G>A | p.R306Q | 5 | Japan | Epimerase | [5] |
30 | c.992T>C | p.V331A | 6 | Japan | Epimerase | [5] |
31 | c.1003C>T | p.R335W | 6 | USA | Epimerase | [74] |
32 | c.1039_1042 delCTGCinsA | p.L347del; H348N | 6 | USA | Epimerase | [74] |
33 | IVS6+2dupT (c.1070+2dupT) | p.352fsX15; p.Y355_C357del | 6 | Italian | Epimerase | [28] |
34 | c.1099G>A | p.V367I | 7 | Iran | Epimerase | [75] |
35 | c.1130delT | p.I377fsX16 | 7 | Italian | Epimerase | [28] |
36 | c.1183G>T | p.D378Y | 7 | USA, Japan, Ireland | Epimerase** | [5, 21] |
37 | c.1136T>A | p.L379H | 7 | Tunesia | Epimerase?** | [76] |
38 | c.1258C>T | p.R420X | 7 | Japan | Kinase | [24] |
36 | c.1262T>C | p.V421A | 7 | Japan | Kinase | [24] |
37 | c.1295delA | p.K432fsX17 | 8 | India | Kinase | [77] |
38 | c.1379C>T | p.A460V | 8 | Japan | Kinase | [26] |
39 | c.1415T>C | p.I472T | 9 | Japan | Kinase | [5, 78] |
40 | c.1532C>A | p.P511H | 9 | Japan | Kinase | [31] |
41 | c.1532C>T | p.P511L | 9 | Thailand | Kinase | [10] |
42 | c.1539G>A | p.W513X | 9 | Taiwan | Kinase | [73] |
43 | c.1556A>G | p.N519S | 9 | Italy | Kinase | [28] |
44 | c.1571C>T | p.A524V | 9 | Thailand, Mexico, South America, France | Kinase | [10, 22, 32] |
45 | c.1583T>G | p.F528C | 9 | Germany | Kinase | [21] |
46 | c.1670T>C | p.I557T | 10 | Italy, Japan | Kinase | [21, 24] |
47 | c.1675G>C | p.G559R | 10 | Greece | Kinase | [33] |
48 | c.1714G>C | p.V572L | 10 | Japan, Korea, Asian | Kinase | [25–27] |
49 | c.1727G>A | p.G576E | 10 | USA | Kinase | [19] |
50 | c.1760T>C | p.I587T | 10 | USA, Italy, Algeria | Kinase | [21, 32] |
51 | c.1771G>A | p.A591T | 10 | Korea | Kinase | [27] |
52 | c.1798G>A | p.A600T | 10 | Italy | Kinase | [28] |
53 | c.1888G>A | p.A630T | 11 | Japan | Kinase | [5] |
54 | c.1891G>A | p.A631T | 11 | USA, Senegal | Kinase | [19, 32] |
55 | c.1892C>T | p.A631V | 11 | Germany, Ireland, Japan, USA | Kinase | [5, 21, 25, 72] |
56 | c.1967T>A | p.I656N | 11 | Thailand | Kinase | [10] |
57 | c.2023T>C | p.Y675H | 12 | Mexico, South America | Kinase | [22] |
58 | c.2036T>G | p.V679G | 12 | France | Kinase | [32] |
59 | c.2086G>A | p.V696M | 12 | Thailand, India, Algeria | Kinase | [10, 19, 32, 33] |
60 | c.2122G>A | p.G708S | 12 | Japan | Kinase | [24] |
61 | c.2135T>C | p.M712T | 12 | Persian Jewish | Kinase | [19, 22–24, 76] |
62 | del ex3-ex9 (>35.7kb) | Large deletion | 3–9 | Italy | Epimerase + Kinase | [71] |
Gray background; severe mutations, likely resulting in nonsense mediated RNA decay and limited GNE/MNK protein expression.
GNE/MNK amino acid residues 1–378 are suggested to regulate epimerase enzymatic activity, and residues 410–722 regulate kinase enzymatic activity [38].