- AARS2 3
- AASS 3
- ABAT 5
- ABCA1 1
- ABCB11 1
- ABCB4 1
- ABCB7 5
- ABCD1 2
- ABCD4 1
- ABCG5 1
- ABCG8 1
- ABHD12 1
- ABHD5 1
- ACACA 2
- ACAD8 1
- ACAD9 4
- ACADM 3
- ACADS 1
- ACADSB 1
- ACADVL 3
- ACAT1 1
- ACO2 5
- ACOX1 0
- ACSF3 3
- ACY1 1
- ADA 3
- ADAR 1
- ADSL 1
- AFG3L2 4
- AGA 1
- AGK 3
- AGL 1
- AGPS 0
- AGXT 0
- AHCY 2
- AIFM1 2
- AKR1D1 1
- ALAD 1
- ALAS2 1
- ALDH18A1 2
- ALDH3A2 1
- ALDH4A1 1
- ALDH5A1 1
- ALDH6A1 1
- ALDH7A1 2
- ALDOA 1
- ALDOB 0
- ALG1 0
- ALG11 0
- ALG12 0
- ALG14 1
- ALG3 0
- ALG6 0
- ALG8 0
- ALG9 0
- ALPL 1
- AMACR 0
- AMN 1
- AMT 1
- ANO10 3
- APOA1 1
- APOA5 2
- APOB 2
- APOC2 1
- APOE 1
- APOPT1 3
- APRT 1
- APTX 3
- ARG1 0
- ARSA 1
- ARSB 0
- ARSE 1
- ARSG 3
- ARSK 2
- ASAH1 1
- ASL 0
- ASPA 1
- ASS1 0
- ATAD3A 5
- ATIC 2
- ATP13A2 1
- ATP5A1 6
- ATP5D 1
- ATP5E 4
- ATP5G3 5
- ATP5O 4
- ATP6AP1 0
- ATP6V0A2 0
- ATP7A 3
- ATP7B 1
- ATP8B1 1
- ATPAF2 2
- AUH 0
- B3GALNT2 0
- B3GALT6 0
- B3GAT3 0
- B3GLCT 1
- B4GALNT1 2
- B4GALT1 0
- B4GALT7 0
- BAAT 1
- BCAT2 3
- BCKDHA 0
- BCKDHB 0
- BCKDK 1
- BCS1L 2
- BOLA3 3
- BTD 2
- C12orf65 3
- C19orf12 7
- C19orf70 2
- C1QBP 2
- CA5A 2
- CARS2 4
- CAT 0
- CBS 2
- CCDC115 1
- CHCHD10 3
- CHKB 6
- CHST14 0
- CHST3 0
- CHST6 0
- CHSY1 0
- CISD2 1
- CLDN16 1
- CLDN19 1
- CLN3 1
- CLN5 1
- CLN6 1
- CLN8 1
- CLPB 5
- CLPP 2
- CNNM2 1
- COA6 3
- COA7 1
- COG1 0
- COG4 0
- COG5 0
- COG6 0
- COG7 0
- COG8 0
- COQ2 3
- COQ4 2
- COQ6 2
- COQ7 3
- COQ8A 4
- COQ8B 3
- COQ9 2
- COX10 2
- COX14 3
- COX15 2
- COX20 3
- COX5A 3
- COX6A1 2
- COX6B1 1
- COX7B 2
- CP 1
- CPOX 3
- CPS1 0
- CPT1A 1
- CPT2 4
- CREB3L3 4
- CRLS1 2
- CSGALNACT1 3
- CTH 1
- CTNS 1
- CTSA 1
- CTSC 1
- CTSD 1
- CTSF 1
- CTSK 1
- CUBN 1
- CYC1 2
- CYP27A1 1
- CYP7B1 1
- D2HGDH 1
- DARS 7
- DARS2 3
- DBH 2
- DBT 0
- DCXR 2
- DDC 2
- DDOST 2
- DGUOK 2
- DHCR24 1
- DHCR7 2
- DHFR 0
- DHODH 1
- DHRSX 7
- DHTKD1 7
- DLAT 3
- DLD 3
- DNA2 3
- DNAJC12 1
- DNAJC19 3
- DNAJC5 1
- DNM1L 3
- DNM2 3
- DOLK 0
- DPAGT1 0
- DPM1 0
- DPM2 2
- DPM3 2
- DPYD 2
- DPYS 1
- DYM 2
- EARS2 2
- EBP 1
- ECHS1 3
- EDEM3 1
- EHBP1L1 2
- ELAC2 2
- ENO3 2
- EOGT 2
- EPG5 1
- EPM2A 1
- ETFA 2
- ETFB 2
- ETFDH 3
- ETHE1 2
- EXT1 1
- EXT2 0
- FA2H 1
- FAH 1
- FARS2 3
- FASTKD2 2
- FBP1 0
- FBXL4 4
- FDX2 6
- FDXR 2
- FECH 3
- FGFR2 1
- FH 2
- FKRP 0
- FKTN 0
- FLAD1 3
- FMO3 1
- FOLR1 0
- FOXRED1 1
- FTCD 2
- FUCA1 1
- FUK 3
- FUT8 1
- FXN 7
- G6PC 2
- G6PC3 1
- GAA 2
- GABRG2 1
- GALC 1
- GALE 1
- GALK1 1
- GALM 2
- GALNS 0
- GALNT2 3
- GALNT3 0
- GALT 1
- GAMT 2
- GARS 3
- GATM 3
- GBA 1
- GBE1 1
- GCDH 1
- GCH1 1
- GCLC 1
- GCSH 4
- GDAP1 4
- GFER 2
- GFM1 2
- GFM2 3
- GFPT1 0
- GIF 2
- GK 1
- GLA 0
- GLB1 0
- GLDC 1
- GLRA1 1
- GLRX5 3
- GLS 4
- GLUD1 5
- GLUL 1
- GLYCTK 1
- GM2A 1
- GMPPA 2
- GMPPB 0
- GNE 2
- GNMT 1
- GNPAT 0
- GNPTAB 0
- GNPTG 0
- GNS 0
- GORAB 2
- GPD1 1
- GPHN 1
- GPIHBP1 1
- GRHPR 0
- GRN 3
- GSS 1
- GSTZ1 2
- GTPBP3 3
- GUSB 0
- GYG1 2
- GYS1 2
- GYS2 0
- HAAO 1
- HADH 1
- HADHA 2
- HADHB 2
- HAMP 1
- HARS2 5
- HCCS 2
- HCFC1 1
- HEXA 1
- HEXB 1
- HFE 1
- HFE2 2
- HGD 1
- HGSNAT 0
- HIBCH 3
- HLCS 2
- HMBS 3
- HMGCL 4
- HMGCS2 1
- HOGA1 0
- HPD 1
- HPRT1 1
- HPS1 1
- HS2ST1 2
- HSD17B10 2
- HSD17B4 0
- HSD3B7 2
- HSPA9 5
- HSPD1 2
- HTRA2 1
- HYAL1 2
- IARS2 3
- IBA57 2
- IDH2 2
- IDS 0
- IDUA 0
- IER3IP1 6
- ISCA1 1
- ISCA2 5
- ISCU 4
- ISPD 1
- ITPA 1
- IVD 0
- KARS 5
- KYNU 2
- L2HGDH 1
- LAMP2 2
- LARGE1 2
- LARS 3
- LARS2 2
- LBR 1
- LCAT 1
- LCT 1
- LDHA 1
- LDLR 1
- LDLRAP1 1
- LETM1 4
- LFNG 3
- LIAS 3
- LIPA 1
- LIPT1 3
- LIPT2 4
- LMBRD1 1
- LMF1 1
- LONP1 2
- LPIN1 2
- LPL 1
- LRPPRC 3
- LYRM4 4
- LYRM7 3
- MAGT1 1
- MAN1B1 0
- MAN2B1 1
- MANBA 1
- MAOA 1
- MARS2 2
- MAT1A 2
- MCCC1 1
- MCCC2 1
- MCEE 0
- MCOLN1 0
- MDH2 1
- MECR 2
- MFF 2
- MFN2 3
- MFSD8 1
- MGAT2 0
- MGME1 3
- MICU1 2
- MIPEP 1
- MLYCD 0
- MMAA 0
- MMAB 0
- MMACHC 1
- MMADHC 1
- MOCS1 1
- MOCS2 1
- MOGS 1
- MPC1 3
- MPDU1 0
- MPI 0
- MPV17 2
- MRM2 2
- MRPL3 5
- MRPL44 3
- MRPS2 2
- MRPS22 2
- MRPS34 2
- MSMO1 1
- MSTO1 3
- MT-ATP6 3
- MT-ATP8 3
- MT-CO1 3
- MT-CO2 3
- MT-CO3 3
- MT-CYB 3
- MTFMT 4
- MTHFR 0
- MT-ND1 3
- MT-ND2 3
- MT-ND3 3
- MT-ND4 3
- MT-ND4L 3
- MT-ND5 3
- MT-ND6 3
- MTO1 2
- MTPAP 5
- MTR 1
- MT-RNR1 3
- MTRR 1
- MT-TA 3
- MT-TC 3
- MT-TD 3
- MT-TE 3
- MT-TF 3
- MT-TG 3
- MT-TH 3
- MT-TI 3
- MT-TK 3
- MT-TL1 3
- MT-TL2 3
- MT-TM 3
- MT-TN 3
- MTTP 1
- MT-TP 3
- MT-TQ 3
- MT-TR 3
- MT-TS1 3
- MT-TS2 3
- MT-TT 5
- MT-TV 3
- MT-TW 3
- MT-TY 3
- MUT 1
- MVK 1
- NADK2 3
- NAGA 1
- NAGLU 0
- NAGS 0
- NARS2 2
- NAXD 3
- NAXE 2
- NDUFA1 2
- NDUFA10 1
- NDUFA11 1
- NDUFA12 4
- NDUFA13 6
- NDUFA2 1
- NDUFA4 4
- NDUFA6 3
- NDUFA8 5
- NDUFA9 5
- NDUFAF1 1
- NDUFAF2 2
- NDUFAF3 1
- NDUFAF4 1
- NDUFAF5 2
- NDUFAF6 3
- NDUFAF8 1
- NDUFB10 4
- NDUFB11 2
- NDUFB3 2
- NDUFB8 2
- NDUFC2 2
- NDUFS1 1
- NDUFS2 1
- NDUFS3 1
- NDUFS4 1
- NDUFS6 1
- NDUFS7 1
- NDUFS8 1
- NDUFV1 1
- NDUFV2 2
- NEU1 0
- NFS1 6
- NFU1 3
- NGLY1 2
- NHLRC1 1
- NNT 2
- NPC1 1
- NPC2 1
- NSDHL 1
- NSUN3 3
- NT5C3A 1
- NT5E 2
- NUBPL 2
- NUS1 4
- OAT 0
- OCRL 2
- OGDH 5
- OPA1 4
- OPA3 2
- OTC 1
- OXCT1 1
- PAH 1
- PANK2 2
- PARS2 4
- PC 3
- PCBD1 1
- PCCA 0
- PCCB 0
- PCK1 2
- PCSK9 1
- PDHA1 3
- PDHB 3
- PDHX 3
- PDK3 6
- PDP1 3
- PDSS1 2
- PDSS2 2
- PEPD 1
- PET100 4
- PEX1 0
- PEX10 0
- PEX11B 0
- PEX12 0
- PEX13 0
- PEX14 0
- PEX16 0
- PEX19 0
- PEX2 0
- PEX26 0
- PEX3 0
- PEX5 1
- PEX6 2
- PEX7 0
- PFKM 2
- PGAM2 2
- PGAP2 0
- PGAP3 0
- PGK1 2
- PGM1 1
- PGM3 0
- PHGDH 1
- PHKA1 2
- PHKA2 0
- PHKB 1
- PHKG2 0
- PHYH 0
- PIGA 0
- PIGL 0
- PIGM 4
- PIGN 0
- PIGO 0
- PIGS 2
- PIGT 1
- PIGV 0
- PIGW 1
- PINK1 1
- PLA2G6 1
- PMM2 0
- PMPCA 2
- PMPCB 1
- PNP 1
- PNPLA2 3
- PNPLA8 3
- PNPO 1
- PNPT1 2
- POLG 4
- POLG2 4
- POMGNT1 0
- POMGNT2 0
- POMK 2
- POMT1 0
- POMT2 0
- POR 1
- PPA2 1
- PPOX 3
- PPT1 1
- PRKAG2 2
- PRODH 2
- PRPS1 1
- PSAP 0
- PSAT1 1
- PTCD3 2
- PTS 2
- PUS1 4
- PYCR1 3
- PYGL 0
- PYGM 1
- QDPR 1
- QRSL1 3
- RARS2 3
- RBCK1 2
- RBP4 2
- RFT1 0
- RMND1 3
- RNASEH1 3
- RNASEH2A 4
- RNASEH2B 4
- RNASEH2C 4
- RPIA 2
- RPL10 1
- RRM2B 3
- RTN4IP1 2
- SACS 2
- SAMHD1 3
- SAR1B 2
- SARS2 2
- SC5D 2
- SCO1 2
- SCO2 2
- SCP2 0
- SDHA 4
- SDHAF1 2
- SDHB 3
- SDHD 3
- SEC23B 2
- SERAC1 3
- SETX 2
- SFXN4 3
- SGSH 0
- SHMT2 2
- SI 2
- SKIV2L 2
- SLC12A3 2
- SLC13A3 3
- SLC16A1 1
- SLC17A5 1
- SLC18A2 2
- SLC19A2 3
- SLC19A3 3
- SLC22A5 2
- SLC25A1 4
- SLC25A12 4
- SLC25A13 1
- SLC25A15 0
- SLC25A19 3
- SLC25A20 1
- SLC25A22 3
- SLC25A26 2
- SLC25A3 3
- SLC25A32 1
- SLC25A38 2
- SLC25A4 3
- SLC25A42 3
- SLC25A46 2
- SLC2A1 2
- SLC2A2 0
- SLC30A10 1
- SLC35A1 2
- SLC35A2 3
- SLC35C1 0
- SLC35D1 0
- SLC37A4 2
- SLC39A14 1
- SLC39A4 2
- SLC39A8 2
- SLC3A1 2
- SLC40A1 1
- SLC46A1 0
- SLC52A2 2
- SLC52A3 1
- SLC5A1 2
- SLC5A6 2
- SLC6A19 3
- SLC6A3 2
- SLC6A8 2
- SLC7A7 0
- SLC7A9 2
- SMPD1 1
- SPG7 7
- SPR 2
- SPTLC1 3
- SPTLC2 2
- SRD5A3 0
- SSBP1 3
- SSR4 0
- ST3GAL3 2
- ST3GAL5 0
- STS 2
- STT3A 3
- SUCLA2 3
- SUCLG1 2
- SUMF1 1
- SUOX 1
- SURF1 3
- TACO1 2
- TALDO1 1
- TANGO2 5
- TARS2 3
- TAT 2
- TAZ 3
- TCN2 2
- TFAM 3
- TFR2 1
- TH 2
- TIMM50 2
- TIMM8A 2
- TIMMDC1 3
- TK2 3
- TMEM126B 4
- TMEM165 0
- TMEM199 2
- TMEM5 1
- TMEM70 1
- TOP3A 2
- TPK1 3
- TPP1 1
- TRAP1 2
- TREX1 2
- TRIM37 0
- TRIT1 3
- TRMT10C 3
- TRMT5 4
- TRMU 3
- TRNT1 2
- TRPM6 1
- TSFM 3
- TTC19 1
- TTC37 3
- TTPA 2
- TUFM 6
- TUSC3 0
- TWNK 5
- TYMP 3
- UGT1A1 3
- UMOD 2
- UMPS 1
- UPB1 3
- UQCC2 5
- UQCRB 5
- UQCRC2 6
- UQCRFS1 3
- UROD 1
- UROS 2
- VARS2 2
- VIPAS39 2
- VKORC1 2
- VPS16 1
- VPS33A 1
- VPS33B 2
- WARS2 3
- WDR45 1
- WFS1 3
- XDH 1
- XPNPEP3 4
- XYLT1 1
- XYLT2 0
- YARS2 2
- ACOX2 1
- ALG13 1
- ALG2 2
- ATP5B 4
- C2orf69 4
- CD320 2
- CLCN7 1
- CMPK2 3
- COA3 3
- COASY 1
- COG3 2
- COX11 4
- COX18 4
- COX4I1 3
- COX4I2 3
- COX6A2 4
- CSTB 1
- CYCS 5
- DCC 1
- DHDDS 1
- EHHADH 2
- ERAL1 1
- GATC 2
- GUK1 3
- HPDL 3
- HSD11B2 1
- IDH1 2
- IDH3A 3
- KIAA0391 3
- LDHD 2
- LIG3 4
- LIPC 2
- MAN2B2 3
- MRPL39 3
- MRPL49 2
- MRPS14 1
- MRPS16 5
- MRPS7 2
- MT-RNR2 3
- NDUFB7 3
- NDUFB9 4
- OPLAH 2
- PAICS 1
- PDE12 3
- PET117 1
- PITRM1 5
- POLRMT 4
- PSPH 2
- QARS 5
- RANBP2 2
- RNASET2 2
- RYR1 1
- SDHAF2 4
- SDHC 3
- SLC25A24 3
- SLC25A36 3
- SLC31A1 1
- SPATA5 5
- SQOR 3
- SSR3 2
- STAT2 7
- SUPV3L1 2
- TAMM41 3
- TEFM 3
- TKFC 1
- TMEM65 1
- TOMM7 3
- TRAPPC11 1
- TRPM7 1
- UGGT1 2
- UQCC3 3
- UQCRC1 2
- UQCRQ 2
- UROC1 2
- YME1L1 1
- ABCG2 1
- ACAT2 2
- ALDH1B1 2
- ALG10 2
- AMPD1 2
- AOX1 1
- ATAD3B 2
- ATP5C1 3
- ATP5G1 3
- ATP5G2 3
- ATP5I 3
- ATP5J 3
- ATXN7 2
- BCAT1 1
- BOLA1 1
- BOLA2 1
- C1GALT1C1 1
- CAD 0
- CAMLG 1
- CEP89 3
- CETP 1
- CLCN6 1
- CLPS 1
- CNDP1 1
- COA1 2
- COA5 4
- COG2 0
- COX5B 1
- COX6C 1
- COX7A1 1
- COX7A2 1
- COX7B2 1
- COX7C 1
- COX8A 3
- CYP7A1 1
- DHFR2 1
- DLST 3
- DMGDH 1
- DPEP1 1
- DTD1 0
- ECSIT 2
- EGF 1
- ERCC6L2 0
- FAR1 2
- FBP2 1
- FOLR2 1
- FOLR3 1
- FXYD2 1
- GALNT12 1
- GATB 2
- GGT1 2
- HAL 1
- HYKK 1
- IDH3B 2
- KCTD7 1
- KHK 1
- LACTB 1
- LIPI 1
- MRPL12 4
- MRPL40 2
- MRPS23 4
- MTHFD1 1
- NAT8L 1
- NDUFA3 2
- NDUFA5 1
- NDUFA7 1
- NDUFAB1 1
- NDUFB1 1
- NDUFB2 1
- NDUFB4 1
- NDUFB5 1
- NDUFB6 1
- NDUFC1 1
- NDUFS5 2
- NDUFV3 2
- NT5C 1
- NUP62 1
- OSTC 2
- OXA1L 2
- PCYT2 1
- PDK1 3
- PDK2 2
- PDK4 2
- PDP2 4
- PDPR 5
- PDXK 1
- PEX11A 1
- PHKG1 1
- PHYKPL 1
- PNLIP 1
- PNPLA4 1
- POP1 1
- PPM1B 1
- PPM1K 1
- PREPL 2
- PTCD1 1
- PTPRZ1 1
- ROBO3 4
- SARDH 1
- SCARB1 1
- SHPK 1
- SLC22A4 1
- SLC25A2 1
- SLC25A40 1
- SLC26A6 1
- SLC27A5 1
- SLC35A3 0
- SLC36A2 2
- SLC52A1 1
- SLC6A20 2
- SLCO1B1 1
- SLCO1B3 1
- SRRT 2
- STT3B 0
- SUCLG2 2
- SUGCT 1
- TCN1 2
- TDO2 1
- TIMM44 1
- TM6SF2 1
- TMEM126A 3
- TPMT 1
- TREH 1
- TXN2 4
- UQCRH 1
- USF1 1
- VPS13C 5
Likely inborn error of metabolism
Gene: BCS1L Green List (high evidence)EnsemblGeneIds (GRCh38): ENSG00000074582
EnsemblGeneIds (GRCh37): ENSG00000074582
OMIM: 603647, Gene2Phenotype
BCS1L is in 20 panels
2 reviews
Carl Fratter (Oxford University Hospitals NHS Trust)
Green List (high evidence)
Mode of inheritance
BIALLELIC, autosomal or pseudoautosomal
Variants in this GENE are reported as part of current diagnostic practice
Panel version: Imported from Mitochondrial disorders panel version 0
Shamima Rahman (UCL Institute of Child Health)
Green List (high evidence)
Mode of inheritance
MONOALLELIC, autosomal or pseudoautosomal, NOT imprinted
Panel version: Imported from Mitochondrial disorders panel version 0.16
Details
- Mode of Inheritance
- BIALLELIC, autosomal or pseudoautosomal
- Sources
-
- London North GLH
- NHS GMS
- Expert Review Green
- Phenotypes
-
- Complex III (Mitochondrial respiratory chain disorders (caused by nuclear variants only), OXPHOS assembly factors)
- Mitochondrial Diseases
- Isolated complex III deficiency
- Mitochondrial Respiratory Chain Complex III Deficiency
- Mitochondrial complex III deficiency, nuclear type 1, 124000
- Leigh syndrome, 256000
- Bjornstad syndrome, 262000
- GRACILE syndrome, 603358
- OMIM
- 603647
- Clinvar variants
- Variants in BCS1L
- Penetrance
- None
- Publications
- Panels with this gene
-
- Undiagnosed metabolic disorders
- Childhood onset dystonia, chorea or related movement disorder
- Structural basal ganglia disorders
- Cholestasis
- White matter disorders and cerebral calcification - narrow panel
- Mitochondrial liver disease, including transient infantile liver failure
- Adult onset dystonia, chorea or related movement disorder
- Mitochondrial disorders
- Early onset or syndromic epilepsy
- DDG2P
- Intellectual disability
- Inherited white matter disorders
- Paediatric pseudo-obstruction syndrome
- Mitochondrial disorder with complex III deficiency
- Likely inborn error of metabolism
- Possible mitochondrial disorder - nuclear genes
- Paediatric or syndromic cardiomyopathy
- Monogenic hearing loss
- Neonatal cholestasis
- Fetal anomalies
History Filter Activity
Added New Source, Added New Source
Ivone Leong (Genomics England Curator)Source NHS GMS was added to BCS1L. Source London North GLH was added to BCS1L.
Set Phenotypes
Eleanor Williams (Genomics England Curator)Phenotypes for gene: BCS1L were changed from Complex III (Mitochondrial respiratory chain disorders (caused by nuclear variants only), OXPHOS assembly factors); Mitochondrial Diseases; Isolated complex III deficiency; Mitochondrial Respiratory Chain Complex III Deficiency; Mitochondrial complex III deficiency, nuclear type 1, 124000Leigh syndrome, 256000Bjornstad syndrome, 262000GRACILE syndrome, 603358 to Complex III (Mitochondrial respiratory chain disorders (caused by nuclear variants only), OXPHOS assembly factors); Mitochondrial Diseases; Isolated complex III deficiency; Mitochondrial Respiratory Chain Complex III Deficiency; Mitochondrial complex III deficiency, nuclear type 1, 124000; Leigh syndrome, 256000; Bjornstad syndrome, 262000; GRACILE syndrome, 603358
Panel promoted to version 1.0
Ellen McDonagh (Genomics England Curator)Checked against super panel made up of the panel constituents. Ready to promote to version 1.
Set Phenotypes
Ellen McDonagh (Genomics England Curator)Added phenotypes Mitochondrial complex III deficiency, nuclear type 1, 124000Leigh syndrome, 256000Bjornstad syndrome, 262000GRACILE syndrome, 603358; Mitochondrial Diseases; Isolated complex III deficiency; Mitochondrial Respiratory Chain Complex III Deficiency for gene: BCS1L
Created, Added New Source, Set mode of inheritance, Set publications, Set Phenotypes
Ellen McDonagh (Genomics England Curator)gene: BCS1L was added gene: BCS1L was added to Inborn errors of metabolism. Sources: Expert Review Green Mode of inheritance for gene: BCS1L was set to BIALLELIC, autosomal or pseudoautosomal Publications for gene: BCS1L were set to 27604308 Phenotypes for gene: BCS1L were set to Complex III (Mitochondrial respiratory chain disorders (caused by nuclear variants only), OXPHOS assembly factors); Mitochondrial Diseases; Isolated complex III deficiency; Mitochondrial Respiratory Chain Complex III Deficiency; Mitochondrial complex III deficiency, nuclear type 1, 124000Leigh syndrome, 256000Bjornstad syndrome, 262000GRACILE syndrome, 603358