Portugal ARJP Table And Parkin Review Evidence
9 different deletions either in homozygosity or heterozygosity.
- The most common deletions were those of exon 4 and of exons 3-6 (table 1)
Js: from the below table, 21 patients had a family history, so half!
Table 1. Portugal ARJP Molecular Diagnosis
Table 1. Overview of molecular and clinical information from 40 patients with a molecular diagnosis of autosomal recessive juvenile Parkinson disease
| Patient | Age at onset, y | cDNA | Protein | Family history | Consanguinity |
|---|---|---|---|---|---|
| 1 | 22 | c.1244C>A + c.172-52958_734+8943del | [p.T415N] + [p.?] | Yes | No |
| 2 | 28 | c.171+67708_734+58232delins28 + c.171+67708_734+58232delins28 | [p.?] + [p.?] | No | No |
| 3 | 38 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | No | Yes |
| 4 | 25 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 5 | 17 | c.413-18966_871+72957delinsA + c.413-18966_871+72957delinsA | [p.?] + [p.?] | No | Yes |
| 6 | 32 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | Yes |
| 7 | 30 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | No | No |
| 8 | 27 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | No | No |
| 9 | 13 | c.155delA + c.823C>T | [p.N52Mfs*29] + [p.R275W] | Yes | No |
| 10 | 31 | c.125G>C + c.8-51491_172-56018del | [p.R42P] + [p.?] | No | No |
| 11 | 35 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | No | No |
| 12 | 25 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 13 | 28 | c.155delA + c.172-11910_413-22473del | [p.N52Mfs*29] + [p.?] | No | No |
| 15 | 17 | c.823C>T + c.823C>T | [p.R275W] + [p.R275W] | Yes | No |
| 16 | 10 | c.1072_1073delinsA + c.1072_1073delinsA | [p.L358Rfs*77] + [p.L358Rfs*77] | No | No |
| 17 | 17 | c.171+67708_734+58232delins28 + c.171+67708_734+58232delins28 | [p.?] + [p.?] | Yes | No |
| 18 | 35 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 19 | 27 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 20 | 34 | c.1084-3859_1167+1618del + c.1084-3859_1167+1618del | [p.?] + [p.?] | No | Yes |
| 21 | 23 | c.155delA + c.735-21670_1083+48265delinsATG | [p.N52Mfs*29] + [p.?] | Yes | No |
| 22 | 51 | c.823C>T + c.413-16409_534+27042delinsATGCCTGTAA | [p.R275W] + [p.?] | No | No |
| 23 | 18 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 24 | 30 | c.155delA + c.823204_172-3140del | [p.N52Mfs*29] + [p.?] | Yes | No |
| 25 | 24 | c.413-3460_534+30928del + c.413-3460_534+30928del | [p.?] + [p.?] | No | Yes |
| 26 | - | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 27 | 42 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | No | No |
| 28 | 12 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | No |
| 29 | 33 | c.125G>C + c.125G>C | [p.R42P] + [p.R42P] | No | No |
| 30 | 39 | c.155delA + c.412+25822_535-71707delinsTGA | [p.N52Mfs*29] + [p.?] | No | No |
| 31 | 50 | c.155delA + c.172-16570_734+51279del | [p.N52Mfs*29] + [p.?] | Yes | No |
| 32 | 13 | c.155delA + c.823C>T | [p.N52Mfs*29] + [p.R275W] | Yes | No |
| 33 | 38 | c.413-27055_534+20428del + c.413-27055_534+20428del | [p.?] + [p.?] | No | No |
| 34 | 52 | c.155delA + c.155delA | [p.N52Mfs*29] + [p.N52Mfs*29] | Yes | Yes |
| 38 | 55 | c.1097G>A + c.413-10504_534+408delins20 | [p.R366Q] + [p.?] | No | No |
| 39 | 34 | c.1030delG + c.1286-3C>G | [p.E344Sfs*91] + [p.?] | No | No |
| 40 | 44 | c.155delA + c.412+2768_734+82226del | [p.N52Mfs*29] + [p.?] | Yes | No |
Klein, 2012 #915 Review
Parkin | PINK1 | DJ1
887 exonic mutations have been described to date, comprising 147 different changes.
- About a third (293/887) of all exonic mutations are single-nucleotide changes,
- 13% (119/887) are small deletions, and
- 54% (475/887) are deletions or duplications of one or several exons (A Grunewald and C Klein, in prep.)
A deletion of exon 3 is the most frequent mutation in the Parkin gene (88/887, reported in 17 different studies). The second most common change is the c.924C>T (this is DNA level nomenclature, coding region, substitution) single-nucleotide mutation in exon 7 (RING1), which was detected 75 times in 13 different screens (A Grunewald and C Klein, in prep.).
- without dementia.36,41 {Aasly, 2020 #781}
Demographics (these are what we expect for our clinical trials)
- {Kasten, 2018 #708} Supplementary Table 4. Comparison of most frequently considered clinical features in review articles vs. MDSGene data
- https://www.mdsgene.org/d/1/g/4
Akhit, 2016 #1061
Below two SNPs decrease Parkin protein stability, & structure & ↓ function (evidence내가 아직 못 발견)
- rs55961220 C289G
- rs56092260 R366W
Darvish, 2013 #1349, Iran
Table 1. Mutations identified in patients with sporadic early-onset PD.
| Gene | Zygosity | Mutation | Number of patients | AAO (years) | Ethnicity | Clinical features |
|---|---|---|---|---|---|---|
| Parkin | Homozygous | Deletion of exon 2 | 5 | 25-28-31-30-26 | Mazandrani | All five patients had typical clinical features |
| Parkin | Homozygous | Deletion of exon 3 | 3 | 22-18-29 | Sistani, Azeri, Fars | All three patients had typical clinical features |
| Parkin | Compound heterozygous | Deletion of exons 2, 3 and 4 + Deletion of exon 3 | 1 | 28 | Gilaki | Typical clinical features |
| Parkin | Compound heterozygous | Deletion of exons 2, 3, 4, and 5 + deletion of exons 2, 3 and 4 | 1 | 20 | Fars | Typical clinical features |
| Parkin | Compound heterozygous | Deletion of exon 2 + deletion of exons 2 and 3 | 1 | 16 | Azeri | Typical clinical features |
| Parkin | Compound heterozygous | Deletion of exon 2 + deletion of exons 2, 3, and 4 | 1 | 25 | Balochi | Typical clinical features |
| Parkin | Compound heterozygous | Whole-gene duplication / Whole-gene Triplication | 1 / 1 | 38 / 26 | Fars | Typical clinical features / PD + Dementia |
Table 2. Mutations identified in patients with familial PD.
| Gene | Zygosity | Mutation | Number of families | Number of affected individuals | Mean AAO (years) | Ethnicity | Clinical features |
|---|---|---|---|---|---|---|---|
| Parkin | Homozygous | Deletion of exon 3 | 2 | 2-2 | 21-31 | Mazandrani, Fars | Affected individuals in one of families had PD + Dystonia |
| Parkin | Homozygous | Deletion of exons 2-12 | 1 | 2 | 18 | Lorestani | PD + Dementia |
| Parkin | Homozygous | Deletion of exon 2 | 4 | 3-2-2-2 | 29-31-30-28 | Mazandrani | All affected individuals from four families had typical clinical features |
| Parkin | Homozygous | Deletion of exons 3, 4, and 5 | 1 | 3 | 25 | Mazandrani | All three affected individuals had typical clinical features |
| Parkin | Compound heterozygous | Deletion of exons 2 and 3 + deletion of exons 2,3, and 4 | 1 | 3 | 29 | Fars | All three affected individuals had typical clinical features |
| Parkin | Compound heterozygous | Deletion of exon 2 + deletion of exons 2 and 3 | 1 | 4 | 30 | Fars | All four affected individuals had typical clinical features |
| Parkin | Compound heterozygous | Deletion of exon 2 + deletion of exons 2,3, and 4 | 1 | 2 | 14 | Fars | All two affected individuals had typical clinical features |
| Parkin | Homozygous | Deletion of exon 5 | 1 | 3 | 42 | Fars | All three affected individuals had typical clinical features |
| Parkin | Homozygous | Deletion of exon 4 | 1 | 3 | 38 | Balochi | All three affected individuals had PD + Dementia |
| [uncertain] | Homozygous | Deletion of exon 2 | 1 | 3 | 12 | Torkaman | Kufor-Rakeb syndrome |
| [uncertain] | [uncertain] | Whole-gene duplication | 2 | 2-2 | 39-44 | Gilaki, Fars | All affected individuals had typical clinical features |
| [uncertain] | [uncertain] | Whole-gene Triplication | 1 | 3 | 25 | Azeri | All three affected individuals had PD + Dementia |
Uncertain Spans
- Portugal Table 1 rows 14, 36, and 37 are not clearly visible in this crop; rows visible enough to transcribe are retained and missing rows are not inferred.
- Several long cDNA deletion strings in Portugal Table 1 are small and may contain punctuation or coordinate errors.
- Klein 2012 review table is preserved as an image asset; only surrounding notes and highlighted aggregate statements are transcribed.
- Darvish 2013 table gene labels at the far left are partly cropped; uncertain rows keep
[uncertain]rather than inferred gene names. - The bottom transition into the following
Resultssection is visible but not enough text is exposed to transcribe beyond the table region.