
Figure 1.
Overview of molecular findings in 66 euploid early pregnancy losses. Diagnostic summary showing cases with a genetic diagnosis, possible monogenic contribution (VUS + P/VUS), and no reportable variant, with autosomal recessive (AR) and autosomal dominant (AD) findings indicated where applicable
Table 1.
Detailed overview of variants detected by WES in euploid EPL and their molecular characteristics
| Case | Gene | Reference sequence | Variant | Protein change | Zygosity | Inheritance | Type of variant | Known / Novel | ACMG classification | ACMG criteria |
|---|---|---|---|---|---|---|---|---|---|---|
| 1. Genes plausibly associated with prenatal or early embryonic lethality | ||||||||||
| Definitive molecular diagnoses | ||||||||||
| Abp-411 | CPLANE1 | NM_001384732.1 | c.1819delT;7817T>A | p.Tyr607ThrfsTer6; p.Leu2624Ter | hom | M/F | Frameshift | Known | Pathogenic | PVS1; PM2; PP5/PVS1; PM2; PP5 |
| Abp-445 1 | CPLANE1 | NM_001384732.1 | c.1819delT;7817T>A | p.Tyr607ThrfsTer6; p.Leu2624Ter | het | F | Frameshift; Nonsense | Known | Pathogenic | PVS1; PM2; PP5/PVS1; PM2; PP5 |
| c.5820+3_5820+6del | exon 29 skipping | het | M | Splice site | Novel | Pathogenic | PS3, PM2; PM3; PM4; PP3 | |||
| Abp-4942 | DHCR7 | NM_001360.3 | c.452G>A | p.Trp151Ter | het | F | Nonsense | Known | Pathogenic | PVS1; PM2; PP5 |
| c.964-1G>C | altered splicing | het | M | Splice site | Known | Pathogenic | PVS1; PM2; PP5 | |||
| Abp-5452 | DHCR7 | NM_001360.3 | c.452G>A | p.Trp151Ter | het | F | Nonsense | Known | Pathogenic | PVS1; PM2; PP5 |
| c.964-1G>C | altered splicing | het | M | Splice site | Known | Pathogenic | PVS1; PM2; PP5 | |||
| Abp-5511 | CPLANE1 | NM_001384732.1 | c.1819delT;7817T>A | p.Tyr607ThrfsTer6; p.Leu2624Ter | het | F | Frameshift; Nonsense | Known | Pathogenic | PVS1; PM2; PP5/PVS1; PM2; PP5 |
| c.5820+3_5820+6del | exon 29 skipping | het | M | Splice site | Novel | Pathogenic | PVS1; PM2; PP5/PVS1; PM2; PP5 | |||
| Possible monogenic contributors | ||||||||||
| Abp-501 | GBA1 | NM_000157.4 | c.1444G>T | p.Asp482Tyr | het | M | Missense | Known | VUS | PM2; PM3; PP3 |
| c.1226A>G | p.Asn409Ser | het | F | Missense | Known | Likely pathogenic | PM1; PM2; PM5; PP2; PP3; PP5 | |||
| Abp-694 | PKHD1 | NM_138694.4 | c.107C>T | p.Thr36Met | het | M | Missense | Known | Likely pathogenic | PM2; PM5; PP3; PP5 |
| c.10883C>T | p.Thr362Ile | het | F | Missense | Known | VUS | PM2; PM3 | |||
| Abp-825 | RPGRIP1L | NM_015272.5 | c.2771G>A | p.Ser924Asn | het | M | Missense | Known | VUS | PM2, PM3 |
| c.3295-2A>G | / | het | F | Splice site | Known | Likely pathogenic | PVS1; PM2; PP5 | |||
| 2. Genes causing severe congenital disorders not typically considered embryonically lethal | ||||||||||
| Definitive molecular diagnoses | ||||||||||
| Abp-251 | SLC6A1 | NM_003042.4 | c.740C>A | p.Pro247His | het | de novo | Missense | Novel | Likely pathogenic | PM2; PM5; PP2; PP3 |
| Abp-716 | RBM8A | NM_005105.5 | c.-21G>A | / | het | M | Missense/noncoding | Known | Pathogenic, low penetrance | PS3, PM3 |
| 1q21.1-q21.2 | hg19 | chr1:143,767,833-149,400,542 | / | het | F | Deletion | Known | Pathogenic | 2A; 3B; 4L >1 point | |
| Abp-799 | NF1 | NM_001042492.3 | c.4600C>T | p.Arg1513Ter | het | F | Nonsense | Known | Pathogenic | PVS1; PM2; PP5 |
| Abp-801 | DSG2 | NM_001943.5 | c.2315del | p.Leu772Ter | het | M | Nonsense | Novel | Likely pathogenic | PVS1; PM2 |
| Abp-825 | DVL1 | NM_001330311.2 | c.1961dup | p.Pro657AlafsTer50 | het | F | Frameshift | Novel | Likely pathogenic | PVS1; PM2 |
| Possible monogenic contributors | ||||||||||
| Abp-80 | PAH | NM_000277.3 | c.842C>T | p.Pro281Leu | het | M | Missense | Known | Pathogenic | PS3, PM2; PM5; PP2; PP3; PP5 |
| c.*19G>T | / | het | F | Missense/noncoding | Known | VUS | PM3; BS1; BS2; BP7 | |||
| Abp-87 | PRDM6 | NM_001136239.4 | c.1057G>A | p.Asp353Asn | het | M | Missense | Known | VUS | PM2 |
| Abp-166 | TBX18 | NM_001080508.3 | c.1570C>T | p.His524Tyr | het | M | Missense | Known | VUS | PM2; PP3; PP5 |
| Abp-233 | SCN5A | NM_000335.5 | c.3911C>T | p.Thr1304Met | het | F | Missense | Known | VUS | PM2, PP3, PP5 |
| Abp-577 | TSC1 | NM_000368.5 | c.3113_3119del | p.Ser1038ThrfsTer51 | het | F | Frameshift | Novel | VUS | PVS1(moderate); PM2 |
| Abp-781 | MYH3 | NM_002470.4 | c.3137G>A | p.Arg1046Gln | het | M | Missense | Known | VUS | PM2; PP3 |
| 3. Genes linked to later-onset or susceptibility phenotypes | ||||||||||
| Abp-668 | VWF | NM_000552.5 | c.3797C>T | p.Pro1266Leu | het | M | Missense | Known | Likely pathogenic | PM1; PM2; PM5; PP5 |
| Abp-809 | F5 | NM_000130.5 | c.1601G>A | p.Arg534Gln | hom | M (hom)/F (het) | Missense | Known | Pathogenic, low penetrance | PS3, PS4 |
| Additional distinct pathogenic copy-number finding | ||||||||||
| Abp-972 | 21q22.12-q22.3dup | hg19 | chr21:33,398,108-43,587,648 | / | het | de novo | Duplication | Known | Pathogenic | 3C; 4L >1 point |
Table 2.
Zygosity, inheritance, OMIM-associated diseases, and interpretive grouping of the detected genes
| Case | Gene | Variant | Accession number | AF (gnomAD) | Internal frequency | OMIM disease/s; Inheritance | Major developmental / organ system |
|---|---|---|---|---|---|---|---|
| 1. Genes plausibly associated with prenatal or early embryonic lethality | |||||||
| Definitive molecular diagnoses | |||||||
| Abp-411 | CPLANE1 | c.1819delT;7817T>A | rs777686211; rs749523755 | 0.0001554; 0.00002390 | 0.0077 | 614615, Joubert Syndrome 17, AR; 277170, Orofaciodigital syndrome VI, AR | Multi-system |
| Abp-4451 | CPLANE1 | c.1819delT;7817T>A | rs777686211; rs749523755 | 0.0001554; 0.00002390 | 0.0077 | 614615, Joubert Syndrome 17, AR; 277170, Orofaciodigital syndrome VI, AR | Multi-system |
| c.5820+3_5820+6del | / | / | 0.0017 | ||||
| Abp-4942 | DHCR7 | c.452G>A | rs11555217 | 0.0007759 | 0.0084 | 270400, Smith-Lemli-Opitz syndrome, AR | Multi-system |
| c.964-1G>C | rs138659167 | 0.003854 | 0.0042 | ||||
| Abp-5452 | DHCR7 | c.452G>A | rs11555217 | 0.0007759 | 0.0084 | 270400, Smith-Lemli-Opitz syndrome, AR | Multi-system |
| c.964-1G>C | rs138659167 | 0.003854 | 0.0042 | ||||
| Abp-5511 | CPLANE1 | c.1819delT;7817T>A | rs777686211; rs749523755 | 0.0001554; 0.00002390 | 0.0077 | 614615, Joubert Syndrome 17, AR; 277170, Orofaciodigital syndrome VI, AR | Multi-system |
| c.5820+3_5820+6del | / | / | 0.0017 | ||||
| Possible monogenic contributors | |||||||
| Abp-501 | GBA1 | c.1444G>T | / | / | 0 | 608013, 230800, 230900, 231000, 231005, Gaucher disease types perinatal death, I, II, III, IIIC, AR | Multi-system |
| c.1226A>G | rs76763715 | 0.002235 | 0.0067 | ||||
| Abp-694 | PKHD1 | c.107C>T | rs137852944 | 0.0005094 | 0.0014 | 263200, Polycystic kidney disease 4, with or without hepatic disease, AR | Kidney anomalies |
| c.10883C>T | rs147700643 | 0.00005312 | 0 | ||||
| Abp-825 | RPGRIP1L | c.2771G>A | rs142234650 | / | 0 | 611561, Meckel syndrome 5, AR; 611560, Joubert syndrome 7, AR | Ciliopathies/multi-system |
| c.3295-2A>G | rs1258182460 | / | 0 | ||||
| 2. Genes causing severe congenital disorders not typically considered embryonically lethal | |||||||
| Definitive molecular diagnoses | |||||||
| Abp-251 | SLC6A1 | c.740C>A | / | / | 0 | 616421, Myoclonic-atonic epilepsy, AD | Neurologic |
| Abp-716 | RBM8A | c.-21G>A | rs139428292 | 0.01794 | >2% | 274000, Thrombocytopenia-absent radius syndrome, AR | Multi-system |
| 1q21.1-q21.2 | chr1:143,767,833-149,400,542 | / | / | 0 | |||
| Abp-799 | NF1 | c.4600C>T | rs760703505 | 0.000007957 | 0 | 162200, Neurofibromatosis, type 1, AD | Multi-system |
| Abp-801 | DSG2 | c.2315del | / | / | 0 | 610193, Arrhythmogenic right ventricular dysplasia 10, AD | Cardiac |
| Abp-825 | DVL1 | c.1961dup | / | / | 0 | 616331, Robinow syndrome, autosomal dominant 2, AD | Skeletal |
| Possible monogenic contributors | |||||||
| Abp-80 | PAH | c.842C>T | rs5030851 | 0.0001026 | 0.0010 | 261600, Phenylketonuria, AR | Metabolic |
| c.*19G>T | rs372637021 | 0.002029 | 0 | ||||
| Abp-87 | PRDM6 | c.1057G>A | rs202224762 | 0.0002604 | 0.0010 | 617039, Patent ductus arteriosus 3, AD | Cardiac |
| Abp-166 | TBX18 | c.1570C>T | rs760905589 | 0.000008061 | 0.0010 | 143400, Congenital anomalies of kidney and urinary tract 2, AD | Kidney anomalies |
| Abp-233 | SCN5A | c.3911C>T | rs199473603 | 0.0001649 | 0 | 601144, Brugada syndrome 1, AD; 601154, Cardiomyopathy, dilated, 1E, AD; 603830, Long QT syndrome 3, AD | Cardiac |
| Abp-577 | TSC1 | c.3113_3119del | / | / | 0.00035 | 191100, Tuberous sclerosis-1, AD | Multi-system |
| Abp-781 | MYH3 | c.3137G>A | rs142002449 | 0.0004031 | 0.0010 | 193700, Arthrogryposis, distal, type 2A (Freeman-Sheldon), AD | Skeletal |
| 3. Genes linked to later-onset or susceptibility phenotypes | |||||||
| Abp-668 | VWF | c.3797C>T | rs61749370 | 0.0008322 | 0.0010 | 193400, von Willebrand disease, AD/AR | Blood |
| Abp-809 | F5 | c.1601G>A | rs6025 | 0.01752 | >3% | 188055, Thrombophilia 2 due to activated protein C resistance, AD; 614389, {Pregnancy loss, recurrent, susceptibility to, 1}, AD | Blood |
| Additional distinct pathogenic copy-number finding | |||||||
| Abp-972 [U] | 21q22.12-q22.3 | chr21:33,398,108–43,587,648 | / | / | 0 | /, 21q22 Duplication Syndrome | Multi-system |

Figure 2.
Overview of the identified genetic findings grouped by major developmental or organ-system association. (A) Genetic diagnoses, including definitive molecular diagnoses, and the pathogenic copy-number finding 21q22.12-q22.3 duplication. (B) Possible monogenic contributors. Genes are mapped to their principal affected systems, including neurologic, cardiac, blood/coagulation, kidney anomalies, skeletal, metabolic, ciliopathies, and multi-system involvement. CPLANE1 and RPGRIP1L are shown in both ciliopathy and multi-system categories because of their broader phenotypic effects.

Figure 3.
Pedigrees of families with definitive molecular diagnoses in the euploid early pregnancy loss cohort, grouped according to interpretive category. Previous losses, livebirths, and affected fetuses are shown for each family, and recurrent affected fetuses are integrated into the same pedigree when present.
Supplemental Table S1.
Detailed overview of the demographic and clinical characteristics of the EPL studied group
| Sample ID | Fetal sex | Ethnic origin | Gestational age (weeks) | Maternal Age | No. of PLs (n) | Livebirths (n) | |
|---|---|---|---|---|---|---|---|
| 1 | Abp-2 | F | MKD | 8 | 42 | 4 | 1 |
| 2 | Abp-26 | F | ALB | 7 | 30 | 5 | 0 |
| 3 | Abp-76 | M | MKD | 8 | 31 | 3 | 0 |
| 4 | Abp-80 | F | ALB | 6 | 26 | 6 | 0 |
| 5 | Abp-87 | M | ALB | 9 | 29 | 4 | 1 |
| 6 | Abp-166 | F | ALB | 7 | 38 | 12 | 0 |
| 7 | Abp-233 | F | MKD | 8 | 40 | 4 | 0 |
| 8 | Abp-251 | M | MKD | 8 | 29 | 4 | 0 |
| 9 | Abp-2581 | F | MKD | 8 | 31 | 11 | 0 |
| 10 | Abp-266 | F | MKD | 7 | 32 | 4 | 0 |
| 11 | Abp-2722 | M | ALB | 11 | 28 | 4 | 0 |
| 12 | Abp-278 | F | ALB | 9 | 24 | 4 | 2 |
| 13 | Abp-303 | F | ALB | 8 | 29 | 2 | 0 |
| 14 | Abp-312 | M | ALB | 12 | 27 | 3 | 1 |
| 15 | Abp-357 | M | MKD | 9 | 41 | 3 | 0 |
| 16 | Abp-367 | M | ALB | 8 | 30 | 3 | 0 |
| 17 | Abp-3722 | M | ALB | 9 | 29 | 6 | 0 |
| 18 | Abp-395 | M | MKD | 9 | 27 | 3 | 1 |
| 19 | Abp-404 | M | ALB | 7 | 28 | 3 | 0 |
| 20 | Abp-407 | M | ALB | 8 | 35 | 3 | 0 |
| 21 | Abp-411 | M | ALB | 8 | 30 | 5 | 0 |
| 22 | Abp-4443 | F | MKD | 9 | 27 | 2 | 0 |
| 23 | Abp-4454 | F | ALB | 10 | 24 | 2 | 0 |
| 24 | Abp-4575 | M | ALB | 9 | 27 | 3 | 0 |
| 25 | Abp-488 | M | ALB | 8 | 34 | 3 | 1 |
| 26 | Abp-494 | M | MKD | 7 | 32 | 3 | 0 |
| 27 | Abp-501 | F | ALB | 8 | 31 | 7 | 0 |
| 28 | Abp-5176 | F | ALB | 8 | 25 | 1 | 0 |
| 29 | Abp-5514 | F | ALB | 8 | 25 | 3 | 0 |
| 30 | Abp-562 | M | ALB | 6 | 32 | 3 | 0 |
| 31 | Abp-577 | F | MKD | 8 | 41 | 3 | 1 |
| 32 | Abp-5897 | F | MKD | 8 | 36 | 2 | 0 |
| 33 | Abp-5901 | M | MKD | 8 | 35 | 13 | 0 |
| 34 | Abp-591 | F | MKD | 8 | 35 | 4 | 0 |
| 35 | Abp-6013 | F | MKD | 8 | 28 | 3 | 0 |
| 36 | Abp-604 | M | ALB | 9 | 29 | 4 | 0 |
| 37 | Abp-642 | F | ALB | 9 | 25 | 3 | 0 |
| 38 | Abp-6565 | M | ALB | 7 | 29 | 4 | 0 |
| 39 | Abp-6657 | M | MKD | 7 | 37 | 3 | 0 |
| 40 | Abp-666 | M | MKD | 7 | 33 | 4 | 0 |
| 41 | Abp-668 | M | MKD | 10 | 37 | 2 | 0 |
| 42 | Abp-677 | F | MKD | 8 | 31 | 4 | 0 |
| 43 | Abp-682 | F | ALB | 9 | 26 | 2 | 0 |
| 44 | Abp-694 | M | ALB | 9 | 23 | 2 | 0 |
| 45 | Abp-699 | M | MKD | 12 | 29 | 2 | 0 |
| 46 | Abp-715 | F | ALB | 8 | 26 | 4 | 0 |
| 47 | Abp-716 | F | MKD | 9 | 31 | 2 | 0 |
| 48 | Abp-722 | M | MKD | 6 | 34 | 3 | 0 |
| 49 | Abp-729 | F | MKD | 8 | 36 | 2 | 0 |
| 50 | Abp-734 | M | ALB | 7 | 24 | 3 | 1 |
| 51 | Abp-741 | M | ALB | 9 | 22 | 3 | 0 |
| 52 | Abp-746 | M | MKD | 8 | 32 | 2 | 1 |
| 53 | Abp-781 | F | MKD | 9 | 33 | 2 | 0 |
| 54 | Abp-786 | F | ALB | 8 | 27 | 2 | 0 |
| 55 | Abp-799 | M | MKD | 8 | 35 | 4 | 1 |
| 56 | Abp-801 | F | MKD | 8 | 25 | 2 | 1 |
| 57 | Abp-809 | M | ALB | 12 | 20 | 3 | 0 |
| 58 | Abp-812 | F | MKD | 6 | 36 | 3 | 1 |
| 59 | Abp-8136 | M | ALB | 8 | 30 | 3 | 0 |
| 60 | Abp-825 | F | MKD | 7 | 37 | 3 | 1 |
| 61 | Abp-833 | F | MKD | 7 | 39 | 2 | 0 |
| 62 | Abp-859 | M | ALB | 8 | 31 | 2 | 3 |
| 63 | Abp-864 | M | ALB | 9 | 24 | 3 | 0 |
| 64 | Abp-866 | F | MKD | 8 | 42 | 3 | 1 |
| 65 | Abp-900 | M | MKD | 8 | 37 | 2 | 0 |
| 66 | Abp-972 | F | ALB | 9 | 31 | 4 | 1 |
Supplemental Table S2.
Designed PCR primer sequences used in the confirmation and segregation analyses.
| Gene | Variant | Primer name | Primer nucleotide sequence (5′>3′) | PCR length (nt) |
|---|---|---|---|---|
| CPLANE1 | c.1819delT | CPLANE1_c.1819_F | CCACCAATGAGTCTTGAGCTG | 732 |
| CPLANE1_c.1819_R | AAGAACGCCAAAGTGATGCTAT | |||
| c.7817T>A | CPLANE1_c.7817_F | TGGGTTTGTAGGAGGAGAGGT | 471 | |
| CPLANE1_c.7817_R | CATACTTCCTGCTCCTTTTCCT | |||
| c.5820+3_5820+6del | CPLANE1_c.5820_F | GCCACACAGCATGGCTATATT | 431 | |
| CPLANE1_c.5820_R | TCTCAAGGCTCATCTGGGAT | |||
| DHCR7 | c.452G>A | DHCR7_c.452_F | GTGAAGCAAGTTCCATCCCC | 586 |
| DHCR7_c.452_R | GCAGAACCAAAGGATGGACTC | |||
| c.964-1G>C | DHCR7_c.964-1_F | GCAGAACACGCTCTTGACAG | 721 | |
| DHCR7_c.964-1_R | CAGGTAGAAGGCAGGTAGAGTT | |||
| RBM8A | c.-21G>A | RBM8A_ex1_F | TGAAGGGGGCGGAATCTCTA | 353 |
| RBM8A_ex1_R | TGCGTGTTTTTACCGTGCAG | |||
| NF1 | c.4537C>T | NF1_ex35_F | TGGTCCTGAGGTCTTTTTGG | 560 |
| NF1_ex35_R | TGTTGTCTTCACTCCCTGGT | |||
| F5 | c.1601G>A | FV-Leiden_F | TGATGCCCAGTGCTTAACAA | 265 |
| FV-Leiden_R | TCACACTGGTGCTAAAAAGGA | |||
| TSC1 | c.3113_3119del | TSC1_ex23_F | GGCTCTCAGAAAGGCTACTGG | 436 |
| TSC1_ex23_R | CATCCTCCGAATGTGGACAG | |||
| VWF | c.3797C>T | VWF_ex28_F | ACCGGGATCACAATGACCTT | 632 |
| VWF_ex28_R | GTAGGGCTCAGAAGTGTCCA | |||
| SLC6A1 | c.740C>A | SLC6A1_ex8_F | AAATGTGAGCTGGTTGGCTC | 432 |
| SLC6A1_ex8_R | AAACCTGGTCTACAGTGAGGG | |||
| DSG2 | c.2315del | DSG2_ex14_F | GCCCACTTGACTCAGATCCT | 590 |
| DSG2_ex14_R | TGGGTCCCATTTCTCTTTCCTTA | |||
| DVL1 | c.1961dup | DLV1_ex15_F | GGTTGTTCTGGACGTGGC | 722 |
| DLV1_ex15_R | GGTCTTCCTCATCCCAGGAG | |||
| RPGRIP1L | c.2771G>A | RPGRIP1L_2771G_A_F | GGGGTGGCAGCTTAGTTCTT | 389 |
| RPGRIP1L_2771G_A_R | CCTGGCTAGTTCACATGGTAG | |||
| c.3295-2A>G | RPGRIP1L_3295-2_F | AGGCCAATGGGCTTCTTTTCT | 3211 | |
| RPGRIP1L_3295-2_R | GATGGTGATGTCATCGGCTG | |||
| RPGRIP1L_3295-2_seq | GCAGAGGTGGGCGGATCATGAG | |||
| PAH | c.842C>T | PAH_ex7_F | GCCAGCAATGAACCCAAACC | 239 |
| PAH_ex7_R | TCTTTTCATCCCAGCTTGCAC | |||
| c.*19G>T | PAH_ex13_F | ACAAGTGGCCCATTTTGATGGT | 402 | |
| PAH_ex13_R | GGCCCATTTTGATGGTGTTTT | |||
| GBA | c.1444G>T | GBA_ex10_F | CTGCCTCTCCCACATGTGA | 391 |
| GBA_ex10_R | CAAAAGGGGATGGGTGTGC | |||
| c.1226A>G | GBA_EX9_F | CTTTTCTGCATCGCAGTCCA | 459 | |
| GBA_EX9_R | TCCCACATGTGACCCTTACC | |||
| PKHD1 | c.107C>T | PKHD1_ex3_F | CAGGCCCACTTTTACACCTG | 423 |
| PKHD1_ex3_R | GGGGCTTCTGATGATGTGTTT | |||
| c.10883C>T | PKHD1_ex61_F | ATCAGCCCTCATTTGGATGTGA | 537 | |
| PKHD1_ex61_R | TTCCATTCACTTGGCCCTCA | |||
| PRDM6 | c.1057G>A | PRDM6_ex5_F | ATTGGTTGCTGGGGACAATC | 380 |
| PRDM6_ex5_R | AGTGAACCACGTTTCATGAGT | |||
| TBX18 | c.1570C>T | TBX18_ex8_F | GCAACTGGATGAAACAGGGG | 1074 |
| TBX18_ex8_R | CTCCAACCCTTGCCTTGTAAC | |||
| SCN5A | c.3911C>T | SCN5A_ex22_F | CACGGCCATAGGACATCAGA | 268 |
| SCN5A_ex22_R | TGTTCCCATCCTCCCCATTT | |||
| MYH3 | c.3137G>A | MYH3_ex25_F | TCTTCTGAAACTGGAGGCCC | 345 |
| MYH3_ex25_R | CTTGCAAAGCATTTGTTCCCA |
Supplemental Table S3.
PCR mixture and cycling conditions used for Sanger sequencing for confirmation and phasing of the detected variants on WES analysis.
| PCR master mix content: | Volume (ul) |
|---|---|
| H2O | 16.1 |
| 10xB2 buffer | 2.5 |
| 25mM MgCl2 | 1.3 |
| 2.5 mM nucleotide mix | 2 |
| 10mM Forward primer | 1 |
| 10 mM Reverse primer | 1 |
| HotFire Polymerase 1U/ul | 0.1 |
| DNA (100ng/ul) | 1 |
| Total volume: | 25 |
| PCR cycling conditions: | |
| 95°C/15 min | x1 cycle |
| 95°C/30 sec | x33 cycles |
| 59°C/30 sec | |
| 72°C/45 sec | |
| 72°C/10 min | x1 cycle |