Background
Patients and methods
Patients
Pt # | Sex | Ethnic origin | Current age (y) | Biochemical phenotype | Carboxylase activities in fibroblasts (pmol/ min/mg protein)1 | Genotype | Clinical phenotype§ | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
DBS/ plasma | urine | affected gene | Nucleotide change (at RNA level) | Amino acid change (predicted from RNA) | ||||||||
C5OH | 3-HIVA | 3MCG | MCC | PCC |
Allele 1 Allele 2
| |||||||
20 | f | Caucasian | 10 | ++ | ++ | ++ | 15.4 | 812 |
MCCC1
| c.1155A>C | p.R385S | asymptomatic (fr) |
c.559T>C | p.S187P | |||||||||||
21 | f | Turkish | 11 | ++ | ++ | ++ | 0 | 530 |
MCCC2
| c.803G>C | p.R268T | asymptomatic (ltf, 0.3 y) |
(r.785_803del) | (p.G262_R268delfs*5) | |||||||||||
c.803G>C | p.R268T | |||||||||||
(r.785_803del) | (p.G262_R268delfs*5) | |||||||||||
22 | f | Turkish | 12 | ++ | ++ | ++ | 5.7 | 587 |
MCCC2
| c.464G>A | p.R155Q | asymptomatic (fr) |
c.464G>A | p.R155Q | |||||||||||
23 | f | Arab | 12 | ++ | ++ | ++ | 0 | 594 |
MCCC2
| c.469C>T | p.Q157* | asymptomatic (ltf, 1y) |
c.469C>T | p.Q157* | |||||||||||
25 | m | Caucasian | 11 | ++ | ++ | ++ | na | na |
MCCC1
| c.872C>T◊ - | p.A291V - | asymptomatic (ltf) |
26 | f | Caucasian | 9 | ++ | ++ | ++ | na | na |
MCCC2
| c.1690T>C◊ - | p.X564QLE - | asymptomatic (fr) |
27 | f | Caucasian | 10 | ++ | ++ | ++ | 1.1 | 305 |
MCCC1
| c.1155A>C◊ - | R385S - | asymptomatic, but facial dysmorphies with hypertelorism, mongoloid palpebral fissures, low set ears, mild macroglossia, normal karyotype 46XX (ltf, 0.3 y) |
29 | m | Turkish | 10 | ++ | ++ | ++ | 1.5 | 723 |
MCCC2
| c.295G>C | p.E99Q | asymptomatic (ltf, 6y) |
c.1574+1G>A | (p.F497Gfs*4) | |||||||||||
34 | m | Caucasian | 9 | ++ | ++ | ++ | 16.2 | 542 |
MCCC2
| c.845A>G | p.H282R | asymptomatic (fr) |
c.845A>G | p.H282R | |||||||||||
39 | f | Caucasian | 9 | ++ | ++ | ++ | 0.7 | 696 |
MCCC2
| c.517dupT | p.S173Ffs*25 | asymptomatic (fr) |
c.1123G>T | p.V375F | |||||||||||
40 | m | Caucasian | 9 | ++ | ++ | ++ | 5.1 | 620 |
MCCC2
| c.214C>T | p.R72* | asymptomatic (fr) |
c.416_ 427del12ins16 | p.T139_G143 >RWVPGEfs*35 | |||||||||||
41 | m | Caucasian | 8 | ++ | ++ | ++ | 0 | 595 |
MCCC1
| c.694C>T◊ - | p.R232W - | asymptomatic, mild developmental delay within the first years of life, normal development at present (fr) |
43a | f | Caucasian | 8 | ++ | ++ | ++ | 8.1 | 704 |
MCCC1
| c.640_641delGG | p.G214Nfs*5 | asymptomatic (ltf) |
c.1930G>T | p.E644* | |||||||||||
43b | f | Caucasian | 7 | ++ | ++ | ++ | na | na |
MCCC1
| c.640_641delGG | p.G214Nfs*5 | asymptomatic (ltf) |
c.1930G>T | p.E644* | |||||||||||
52a | m | Turkish | 9 | + | + | ++ | 1.6 | 603 |
MCCC2
| c.803G>C | p.R268T | asymptomatic (ltf) |
(r.785_803del) | (p.G262_ R268delfs*5) | |||||||||||
c.803G>C | p.R268T | |||||||||||
(r.785_803del) | (p.G262_R268delfs*5) | |||||||||||
55 | m | Asian | 7 | ++ | ++ | na | 18.3 | 634 |
MCCC2
| c.351_353delTGG | p.G118del | asymptomatic (ltf, 0.6y) |
c.659G>A | p.G220E | |||||||||||
56 | m | Turkish | 7 | + | + | ++ | 9.6 | 359 |
MCCC2
| c.1567A>G | p.S523G | asymptomatic (fr) |
(exon 6 skipping) | (p.V171Dfs*20) | |||||||||||
57 | m | Asian | 7 | ++ | ++ | ++ | 10.2 | 541 |
MCCC1
| c.863A>G | p.E288G | asymptomatic (fr) |
c.863A>G | p.E288G | |||||||||||
58 | m | Turkish | 7 | ++ | ++ | ++ | 5.2 | 1046 |
MCCC2
| c.538C>T | p.R180* | asymptomatic (fr) |
c.538C>T | p.R180* | |||||||||||
62 | m | Turkish | 7 | ++ | ++ | ++ | 9.5 | 856 |
MCCC1
| c.873+4524_ 6787del2264 | p.? | asymptomatic (fr) |
c.873+4524_ 6787del2264 | p.? | |||||||||||
64 | f | Turkish | 8 | ++ | ++ | ++ | 9.9 | 762 |
MCCC2
| c.803G>C | p.R268T | asymptomatic (ltf, 5y) |
(r.785_803del) | (p.G262_R268delfs*5) | |||||||||||
c.803G>C | p.R268T | |||||||||||
(r.785_803del) | (p.G262_R268delfs*5) | |||||||||||
67 | f | Turkish | 10 | ++ | na | na | 48.4 | 1065 |
MCCC2
| c.464G>A | p.R155Q | asymptomatic (fr) |
c.1015G>A | p.V339M | |||||||||||
70a | f | Caucasian | 6 | + | ++ | ++ | 0 | 520 |
MCCC1
| c.2079delA◊ - | p.V694* - | asymptomatic (fr) |
72 | m | Caucasian | 7 | ++ | ++ | ++ | 11.5 | 451 |
MCCC2
| c.455A>C | p.K152T | asymptomatic (ltf) |
c.903+6_ 903+9delTACG | p.? | |||||||||||
78 | f | Caucasian | 6 | ++ | ++ | ++ | 4.8 | 416 |
MCCC2
| c.671C>T | p.P224L | asymptomatic (fr) |
c.671C>T | p.P224L | |||||||||||
82a | f | Caucasian | 5 | ++ | ++ | ++ | 1.6 | 783 |
MCCC2
| c.512-1G>A | p.? | asymptomatic (ltf, 1y) |
c.512-1G>A | p.? | |||||||||||
82b | f | Caucasian | 5 | ++ | ++ | ++ | na | na |
MCCC2
| c.512-1G>A | p.? | asymptomatic (ltf, 1y) |
c.512-1G>A | p.? | |||||||||||
91 | m | Turkish | 7 | ++ | + | + | 35.5 | 513 |
MCCC2
| c.295G>C | p.E99Q | asymptomatic (fr) |
c.295G>C | p.E99Q | |||||||||||
93b | m | Caucasian | 8 | ++ | na | + | na | na |
na
| na | na | asymptomatic (ltf) |
107 | m | Caucasian | 2 | ++ | ++ | ++ | 4.0 | 613 |
MCCC2
| c.1073-12C>G | asymptomatic (fr) | |
(r.1073_1216del+ r.1073insr.1073-48_ r.1073-1) | (p.G358Vfs*6+ p.G358Afs*12) | |||||||||||
c.1073-12C>G | ||||||||||||
(r.1073_1216del+ r.1073insr.1073-48_ r.1073-1) | (p.G358Vfs*6+ p.G358Afs*12) | |||||||||||
112 | m | Turkish | 0.8 | ++ | ++ | ++ | 0 | 797 |
MCCC2
| c.658_662delTCAGA c.658_662delTCAGA | p.S220Tfs*15 p.S220Tfs*15 | asymptomatic, however hyperammonemia of 270 umol/l under leucine loading test (fr) |
115 | f | Caucasian | 0.7 | ++ | ++ | ++ | 5.0 | 864 |
MCCC1
| c.803C>A | p.A268D | asymptomatic (fr) |
c.1155A>C | p.R385S | |||||||||||
125 | f | Arab | 3 | + | n | na | 102 | 726 |
MCCC2
| c.1423G>A | p. G475R | asymptomatic (fr) |
c.1423G>A | p. G475R | |||||||||||
126 | m | Caucasian | 3 | + | + | na | 60.6 | 791 |
MCCC2
| c.1300G>C | p.V434L | asymptomatic (fr) |
c.1300G>C | p.V434L | |||||||||||
137 | m | Caucasian | 5 | ++ | ++ | ++ | na | na |
MCCC2
| c.518C>T | p.S173L | asymptomatic (fr) |
c.518C>T | p.S173L | |||||||||||
138 | m | Caucasian | 1.5 | ++ | ++ | ++ | na | na |
MCCC1
| c.1155A>C | p.R385S | asymptomatic (fr) |
c.2009_2043del35 | p.A670Dfs*34 | |||||||||||
24 | f | Turkish | 10 | ++ | ++ | ++ | 1.8 | 390 |
MCCC2
| c.295G>C c.295G>C | p.E99Q p.E99Q | attention deficit hyperactivity disorder (fr) |
28 | m | Caucasian | 10 | ++ | ++ | ++ | 1.1 | 318 |
MCCC1
| c.1155A>C (exon 15 skipping) | p.R385S (p.V562*) | attention deficit hyperactivity disorder (fr) |
46 | m | Caucasian/ African American | 9 | ++ | ++ | ++ | 20.0 | 1054 |
MCCC1
| c.2088dupA c.1526delG | p.V697Sfs*19 p.C509Sfs*14 | 3 metabolic decompensations with vomiting, hypoglycaemia and ketonuria (ltf, 7.5y) |
53 | f | Caucasian | 7 | + | ++ | ++ | 28.4 | 773 |
MCCC1
| c.1155A>C c.1315G>A | R385S p.V439M | at the age of 6 months minor psychomotor delay (ltf) |
59 | m | Faroe Islands | 7 | ++ | ++ | ++ | 7.4 | 1051 |
MCCC1
| c.1526delG c.1526delG | p.C509Sfs*14 p.C509Sfs*14 | muscular hypotonia, muscle wakness, impaired physical performance (fr) |
71 | f | Turkish | died at 5 weeks | ++ | ++ | ++ | 1.7 | 597 |
MCCC1
| c.1136G>A c.1136G>A | p.G379D p.G379D | metabolic crisis, floppy infant, myoclonic jerks, respiratory insufficiency requiring mechanical ventilation, deceased at age 6 weeks |
74 | m | African American | 6 | ++ | + | + | 23.0 | 749 |
MCCC1
| c.1302T>G c.2123dupA | p.I434M p.H708Qfs*8 | several metabolic decompensations, mild speech delay, immunodeficiency due to CD 16 deficiency (fr) |
81 | f | Caucasian | 5 | + | + | n | 21.5 | 233 |
MCCC2
| c.1015G>A◊ - | p.V339M - | Trisomy 21, psychomotor retardation, muscular hypotonia (fr) |
90 | m | Turkish | 7 | + | + | + | 23.8 | 483 |
MCCC2
| c.295G>C c.1015G>A | p.E99Q p.V339M | truncal and perioral hypotonia (fr) |
105 | m | Caucasian | 3 | ++ | ++ | ++ | 0 | 412 |
MCCC1
| c.1155A>C c.1820delG | p.R385S p.S607Ifs*5 | unpleasant odour, failure to thrive, several acute metabolic decompensations with mild hyperammonemia during infections (fr) |
108 | m | Asian | 2.5 | ++ | ++ | ++ | 0.8 | 456 |
MCCC2
| c.518C>T c.518C>T | p.S173L p.S173L | recurrent infections, muscular hypertonia and hyperreflexia in infancy (fr) |
127 | m | Arab | 2 | + | na | na | 92,9 | 755 |
MCCC2
| c.1423G>C | p.G475R | muscle weakness (fr) |
c.1423G>C | p.G475R | |||||||||||
136 | f | Caucasian | 8 | ++ | ++ | ++ | na | na |
MCCC2
| c.1149+1G>T c.1149+1G>T | p.? p.? | 3 metabolic decompensations with acidosis, hypoglycaemia, vomiting, encephalopathy and coma (fr) |
31 | f | Caucasian | 10 | na | na | na | 12.4 | 518 |
MCCC1
| c.1155A>C | p.R385S | ? |
c.400G>A | p.E134K | |||||||||||
103 | m | Caucasian | 3 | ++ | ++ | ++ | 0 | 545 |
MCCC2
| (exon 7 to 14 skipping) | (p.I209Pfs*43) | ? |
(exon 7 to 14 skipping) | (p.I209Pfs*43) | |||||||||||
111 | ? | Caucasian | 1 | ++ | + | + | 34.0 | 1083 |
MCCC2
| c.1015G>A | p.V339M | ? |
c.1309A>G | ||||||||||||
(r.1309A>G+ r.1310_1373del64) | (p.I437V+ p.I437Tfs*15) | |||||||||||
113 | ? | Caucasian | 1 | + | + | n | 7.9 | 407 |
MCCC1
| c.193A>T | p.M65L | ? |
c.1193_1194delTG | p.V398Gfs*19 |
Pt # | Sex | Ethnic origin | age at diagnosis | current age (y) | Biochemical phenotype | Carboxylase activities in fibroblasts (pmol/min/mg protein)1 | Genotype | Clinical phenotype§ | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DBS/ plasma | urine | affected gene | Nucleotide change (at RNA level) | Amino acid change (predicted from RNA) | |||||||||
C5OH | 3-HIVA | 3MCG | MCC | PCC |
Allele 1 Allele 2
| ||||||||
30 | m | Turkish | newborn | died at 33 days | ++ | ++ | ++ | 0 | 637 |
MCCC2
| c.1574+1G>A c.1574+1G>A | (p.F497Gfs*4) (p.F497Gfs*4) | acute decompensation on first day of life, acidosis, hypoglycaemia, hyperlactemia, hyperammonemia, encephalopathy, depressed neonatal reflexes, hypertonic episodes, prominent hypotonia, respiratory insufficiency requiring assisted ventilation, cardiac arrest, patient deceased on day 33 |
CT scan of the brain: multiple cysts, ventricular dilatation, cerebral atrophy | |||||||||||||
32a | m | Arab | 4 years | 14 | ++ | ++ | ++ | 5.0 | 863 |
MCCC2
| c.127C>T c.127C>T | p.Q43* p.Q43* | muscular hypotonia, weakness, mild motor delay (fr) |
35a | m | Caucasian | 9 months | 16 | na | ++ | ++ | 7.3 | 976 |
MCCC2
| (exon 7 to 14 skipping) (exon 7 to 14 skipping) | (p.I209Pfs*43) (p.I209Pfs*43) | developmental delay, familial nystagmus, hyperopia, significant hand tremor, mild learning disability, failure to thrive, unpleasant odour descibed as "smelling like cat`s urine", hypothermia, ketonuria, hypoglycemia and mild hyperammonemia prior to stabilisation on dietary therapy (ltf, 3y) |
36 | f | Turkish | 3 years | 11 | ++ | ++ | ++ | 0.4 | 420 |
MCCC1
| c.1527C>A c.1527C>A | p.C509* p.C509* | mental and speech retardation, spasticity, impaired physical performance (ltf) |
42 | f | Caucasian | ? | 24 | ++ | ++ | ++ | 0 | 664 |
MCCC2
| c.929C>G c.929C>G | p.P310R p.P310R | severe muscular weakness, muscle pain (ltf, 16y) |
44 | m | Caucasian | 1.5 years | 10 | na | ++ | ++ | 4.0 | 425 |
MCCC2
| c.463C>T c.463C>T | p.R155W p.R155W | psychomotor retardation, seizures, muscular hypotonia, metabolic stroke, failure to thrive, clinodactyly of the 5th fingers (fr) |
50 | f | Arab | 13 years | 21 | na | ++ | ++ | 8.1 | 761 |
MCCC1
| c.1882G>T c.1114C>T | p.E628* p.Q372* | mild Reye-like episode and encephalitis during Influenza A infection at age 5 years, mild learning disability, severe attention-deficit hyperactivity disorder, multiple sclerosis (fr) |
54 | m | Asian | ? | 13 | ++ | ++ | ++ | 1.3 | 1162 |
MCCC1
| c.980C>G c.639+2T>A | p.S327* p.S164Rfs*3 | psychomotor retardation, attention deficit hyperactivity disorder, frequent skin picking behaviour (ltf) |
60 | f | Turkish | ? | 10 | ++ | ++ | ++ | 6.4 | 754 |
MCCC1
| c.2079delA c.2079delA | p.V694* p.V694* | mild global psychomotor retardation, convulsions starting at the age of 18 months during febrile episode, continued as generalized tonic clonic seizures after the age of 3 years, nephrolithiasis, episodes of hematuria (ltf, 4 y) |
63 | m | Turkish | ? | 8 | ++ | ++ | na | 12.0 | 729 |
MCCC2
| c.464G>A c.464G>A | p.R155Q p.R155Q | 3 metabolic decompensations with encephalopathy, seizures, acidosis, hypoglycemia, mild developmental retardation |
68 | m | Turkish | 3 years | 9 | ++ | ++ | ++ | 2.4 | 335 |
MCCC1
| c.1155A>C c.1155A>C | R385S R385S | severe metabolic decompensation with metabolic stroke, cerebral edema and hemiparesis, mild psychomotor retardation, seizures (fr) |
77 | m | Arab | 8 months | 9 | na | ++ | ++ | 0 | 777 |
MCCC2
| c.463C>T c.463C>T | p.R155W p.R155W | psychomotor and speech retardation, kyphoscolisis, genu varum, hypogammaglobulinemia, chronic diarrhea, reversible cytopenia under TPN (ltf, 7y) |
80 | m | Turkish | 1.5 years | 9 | ++ | ++ | n (6m)++ (1y) | 22.8 | 1162 |
MCCC2
| c.116C>T c.116C>T | p.S39F p.S39F | speech retardation, seizures, recurring attacks of status epilepticus (ltf, 3y) |
89 | f | Caucasian | 7 months | 10 | na | na | na | 17.0 | 986 |
MCCC2
| (exon 8 to 10 skipping) | (p.K248_V334del) | failure to thrive, poor feeding (ltf, 5y) |
(exon 8 to 10 skipping) | (p.K248_V334del) | ||||||||||||
92 | m | Caucasian | 1 week | 5 | ++ | ++ | ++ | na | na |
MCCC2
| c.710G>A c.1149+5G>C | p.G237D p.? | acute metabolic crisis, mild retardation (fr) |
96a | m | Turkish | 1 year | 6 | ++ | ++ | ++ | 7.3 | 1212 |
MCCC1
| c.873+ 4524_6787del2264 | large deletion | acidosis at 1 year of age, atonic seizures starting at 1 year of age (fr) |
c.873+ 4524_6787del2264 | large deletion | ||||||||||||
99a | f | Turkish | 8 years | died at 8 years | ++ | ++ | ++ | na | na |
MCCC2
| c.392G>T c.392G>T | p.C131F p.C131F | catecholaminergic ventricular tachycardia (mutation in RyR2 gene) sudden cardiac death at age 8 years |
69 | ? | Arab | ? | 9 | na | na | na | 18.9 | 1210 |
MCCC2
| c.1567A>G | p.S523G | ? |
c.1567A>G | p.S523G |
Pt # | Sex | Ethnic origin | Age at diagnosis | Current age (y) | Biochemical phenotype | Carboxylase activities in fibroblasts (pmol/min/ mg protein)1 | Genotype | Clinical phenotype§ | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DBS/ plasma | urine | affected gene | Nucleotide change (at RNA level) | Amino acid change (predicted from RNA) | |||||||||
C5OH | 3-HIVA | 3MCG | MCC | PCC |
Allele 1 Allele 2
| ||||||||
32b | m | Arab | 17 years | 28 | ++ | ++ | ++ | 5.3 | 409 |
na
| na | na | asymptomatic (fr) |
93a | m | Caucasian | 4 years | 12 | ++ | + | + | 19.0 | 402 |
MCCC1
| c.558delA | p.Q186Hfs*6 | asymptomatic (ltf) |
c.558delA | p.Q186Hfs*6 | ||||||||||||
99b | f | Turkish | 5.5 years | 8 | ++ | ++ | ++ | na | na |
na
| na | na | asymptomatic (fr) |
70b | m | Caucasian | 3.5 years | 10 | + | + | ++ | na | na |
na
| na | na | speech retardation, muscle weakness, hyperactivity, refusal of meat (fr) |
96c | m | Turkish | 3 years | 8 | ++ | ++ | ++ | na | na |
MCCC1
| c.873+4524_ 6787del2264 | large deletion | mild speech retardation, macrocephaly (ltf) |
c.873+4524_ 6787del2264 | large deletion | ||||||||||||
35b | f | Caucasian | 18 months | 18 | na | ++ | ++ | na | na |
na
| na | na | psychomotor retardation (by 2 years developmental age of 10 months), failure to thrive, hypothermia and ketonuria prior to stabilisation on dietary therapy (ltf, 1.75y) |
52b | m | Turkish | ? | ? | na | na | na | na | na |
MCCC2
| c.803G>C | p.R268T | ? |
(r.785_803del) | (p.G262_ R268delfs*5) | ||||||||||||
c.803G>C | p.R268T | ||||||||||||
(r.785_803del) | (p.G262_ R268delfs*5) | ||||||||||||
52c | m | Turkish | ? | ? | na | na | na | na | na |
MCCC2
| c.803G>C | p.R268T | ? |
(r.785_803del) | (p.G262_ R268delfs*5) | ||||||||||||
c.803G>C | p.R268T | ||||||||||||
(r.785_803del) | (p.G262_ R268delfs*5) |
Pt # | Sex | Ethnic origin | Age at diagnosis | Current age (y) | Biochemical phenotype | Carboxylase activities in fibroblasts (pmol/min/mg protein)1 | Genotype | Clinical phenotype§ | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
DBS/ plasma | urine | affected gene | Nucleotide change (at RNA level) | Amino acid change (predicted from RNA) | |||||||||
C5OH | 3-HIVA | 3MCG | MCC | PCC |
Allele 1 Allele 2
| ||||||||
37 | f | Asian | 32 years | 40 | ++ | ++ | ++ | 9.6 | 1268 |
MCCC2
| c.1367C>T | p.A456V | asymptomatic (ltf) |
c.1367C>T | p.A456V | ||||||||||||
51 | f | Asian | 24 years | 32 | ++ | na | na | 0 | 475 |
MCCC2
| c.351_353delTGG◊ - | p.G118del - | asymptomatic (ltf) |
73c | f | Faroe Islands | 29 years | 37 | ++ | ++ | ++ | na | na |
MCCC1
| c.1526delG | p.C509Sfs*14 | asymptomatic (fr) |
c.1526delG | p.C509Sfs*14 | ||||||||||||
83 | f | Caucasian | ? | 38 | ++ | ++ | ++ | na | na |
MCCC1
| c.539G>T | p.G180V | asymptomatic (fr) |
c.558delA | p.Q186Hfs*6 | ||||||||||||
85 | f | Caucasian | 38 years | 49 | ++ | + | n | na | na |
MCCC2
| c.517dupT | p.S173Ffs*25 | asymptomatic (ltf) |
c.599T>A | p.I200N | ||||||||||||
100 | f | Caucasian | 29 years | 34 | ++ | ++ | ++ | na | na |
MCCC2
| c.505T>G | p.Y169D | asymptomatic (fr) |
c.1073-12C>G | |||||||||||||
(r.1073_1216del+ r.1073insr.1073- 48_r.1073-1) | (p.G358Vfs*6+ p.G358Afs*12) | ||||||||||||
66 | f | Caucasian | 34 years | 41 | + | + | ++ | 10.0 | 807 |
MCCC2
| c.436T>Ac.416_427del12ins16 | p.Y146Np.T139_G143> RWVPGEfs*35 | several metabolic crises with hypoglycemia during febrile illnesses, metabolic stroke, cardiomopathy, paraesthesias (ltf) |
87 | f | Faroe Islands | 28 years | 33 | ++ | n | n | 13.0 | 826 |
MCCC1
| c.1526delGc.1526delG | p.C509Sfs*14p.C509Sfs*14 | chronic tiredness (fr), otherwise asymptomatic |
33 | f | Turkish | 36 years | 45 | ++ | ++ | ++ | 4.6 | 520 |
MCCC2
| c.282-1G>C | p.S95_G128del | ? |
c.282-1G>C | p.S95_G128del |
Clinical data
Cell lines and enzyme assays
MCCC1 and MCCC2 mutation analysis by RT-PCR and genomic PCR
Construction of wild type and mutant MCCC1 and MCCC2 expression vectors and transfections
Western blot analysis of expressed proteins
In silico prediction of functional relevance of identified mutations
Results
Clinical data
Biochemical phenotype at diagnosis
Mutation analysis
Exon/Intron | Nucleotide change at cDNA level | Amino acid change (at RNA level) | Consequence | Patients, in whom this mutation was found in this study/ Reference of first description of the mutation |
---|---|---|---|---|
exon 1 | c.43GC>T | p.E15* | nonsense | Morscher et al. 2012 |
intron 1 | c.89+2_89+34del | p.? | splice | Morscher et al. 2012 |
intron 2 | c.137-2A>G | p.? | splice | Stadler et al. 2006 |
exon 3 | c.137G>A | p.G46E | missense | Nguyen et al. 2011 |
exon 3 | c.168C>G | p.N56K | missense | Morscher et al. 2012 |
exon 3
|
c.193A>T
|
p.M65L
|
missense
|
#113/ This study
|
exon 3 | c.227_228delTG | p.V76Gfs*4 | frameshift | unpublisheda |
exon 3 | c.251_252delGAb | p.R84Kfs*10 | deletion/frameshift | Stadler et al. 2006 |
exon 4 | c.369G>C | p.Q123H | missense | Stadler et al. 2006 |
exon 5 | c.375C>G | p.I125M | missense | Stadler et al. 2006 |
exon 5 | c.400G>A | p.E134K | missense | #32/ Dantas et al. 2005 |
exon 5 | c.479T>G | p.M160R | missense | Stadler et al. 2006 |
exon 6
|
c.539G>T
|
p.G180V
|
missense
|
#83/ This study
|
exon 6 | c.558delA | p.Q186Hfs*6 | deletion/frameshift | #83, 93a/ Morscher et al. 2012 |
exon 6 | c.559T>C | p.S187P | missense | #20, Dantas et al. 2005 |
intron 6
|
c.639+2T>A
|
p.S164Rfs*3
|
splice, exon 6 skipping
|
#54/ This study
|
exon 7 | c.640_641delGG | p.G214Nfs*5c | deletion/frameshift | #43a, 43b/ Dantas et al. 2005 |
exon 7
|
c.658_662delTCAGA
|
p.S220Tfs*15
|
deletion/frameshift
|
#112/ This study
|
exon 7 | c.694C>T | p.R232W | missense | #41/ Dantas et al. 2005 |
intron 7 | c.762-1G>A | p. ? | splice | Nguyen et al. 2011 |
exon 8
|
c.803C>A
|
p.A268D
|
missense
|
#115/ This study
|
exon 8 | c.841C>T | p.R281* | nonsense | Morscher et al. 2012 |
exon 8 | c.842G>A | p.R281Q | missense | Morscher et al. 2012 |
exon 8
|
c.863A>G
|
p.E288G
|
missense
|
#57/ This study
|
exon 8 | c.866C>T | p.A289V | missense | Baumgartner et al. 2001 |
exon 8 | c.872C>T | p.A291V | missense | #25/ Dantas et al. 2005 |
intron 8 + exon 9 | c.873+4524_6787del2264 |
2 transkripts: p.P292Gfs*18 p.P292_R361del
| large deletion, exon 9 and exon 9 and 10 skipping | #62, 96a, 96c/ Eminoglu et al. 2009 |
exon 9 | c.901_902delAA | p.K301Afs*10 | deletion/ frameshift | Uematsu et al. 2007 |
exon 9 | c.945T>A | p.Y315* | nonsense | Stadler et al. 2006 |
exon 10 | c.974T>G | p.M325R | missense | Gallardo et al. 2001 |
exon 10 | c.980C>G | p.S327* | nonsense | #54/ Morscher et al. 2012 |
exon 10 | not published | p.Q372P | missense | Desviat et al. 2003 |
exon 11
|
c.1114C>T
|
p.Q372*
|
nonsense
|
#50/ This study
|
exon 11 | c.1135G>A | p.G379S | missense | Stadler et al. 2006 |
exon 11
|
c.1136G>A
|
p.G379D
|
missense
|
#71/ This study
|
exon 11 | c.1139A>C | p.H380P | missense | Morscher et al. 2012 |
exon 11 | c.1155A>C | p.R385S | missense | #20, 27, 28, 31, 53, 68, 105, 115, 138/ Baumgartner et al. 2001, Gallardo et al. 2001 |
exon 11
|
c.1193_1194delTG
|
p.V398Gfs*19
|
deletion/frameshift
|
#113/ This study
|
exon 11 | c.1225C>T | p.R409* | nonsense | Stadler et al. 2006 |
exon 11 | c.1264_1265insGd | p.Q422Rfs*10d | insertion/frameshift | Baumgartner et al. 2001 |
intron 11 | c.1268-2A>G | p.G423Efs*15 | splice, exon 12/13 skipping | Stadler et al. 2006 |
exon 12
|
c.1302T>G
|
p.I434M
|
missense
|
#74/ This study
|
exon 12 | c.1310T>C | p.L437P | missense | Baumgartner et al. 2001 |
exon 12
|
c.1315G>A
|
p.V439M
|
missense
|
#53/ This study
|
exon 12 | c.1333C>T | p.Q445* | nonsense | Morscher et al. 2011 |
exon13 | c.1380T>G | p.I460M | missense | Uematsu et al. 2007 |
exon 13 | c.1522_1544del | p.L508Hfs*17 | deletion | Morscher et al. 2012 |
exon 13 | c.1526delGe | p.C509Sfs*14 | deletion/frameshift | #46, 59, 73c, 87/ Dantas et al. 2005 |
exon 13 | c.1527C>A | p.C509* | nonsense | #36/ Dantas et al. 2005 |
exon 13 | c.1541dupG | p.L515Sfs*18 | insertion/frameshift | Morscher et al. 2012 |
exon 13 | c.1594G>C | p.D532H | splice | Baumgartner et al. 2001 |
intron 13 | c.1594+3A>G | p.V461Nfs*13 | splice, exon 13 skipping | Morscher et al. 2012 |
exon 14 | c.1604C>T | p.S535F | missense | Holzinger et al. 2001 |
intron 14 | c.1681+5G>A | p.Q533_N561del | splice, exon 14 skipping | Stadler et al. 2006 |
intron 14 | c.1682-3A>G | p.N561Kfs*10 | splice/frameshift | Dantas et al. 2005 |
exon 15 | c.1695_1700del | p.V566_T567del | deletion | Morscher et al. 2012 |
exon 16 | c.1750C>T | p.Q584* | nonsense | Uematsu et al. 2007 |
exon 16
|
c.1820delG
|
p.S607Ifs*5
|
deletion/frameshift
|
#103/ This study
|
exon 17
|
c.1882G>T
|
p.E628*
|
nonsense
|
#50/ This study
|
exon 17 | c.1930G>T | p.E644* | nonsense | #43a, 43b/ Dantas et al. 2005 |
exon 18
|
c.2009_2043del35
|
p.A670Dfs*34
|
deletion/frameshift
|
#138/ This study
|
exon 19 | c.2079delA | p.V694* | nonsense | #60, 70a/ Holzinger et al. 2001 |
exon 19 | c.2088dupA | p.V697Sfs*19 | insertion/frameshift | #46/ Dantas et al. 2005 |
exon 19
|
c.2123dupA
|
p.H708Qfs*8
|
insertion/frameshift
|
#74/ This study
|
Exon/Intron | Nucleotide change at cDNA level | Amino acid change (at RNA level) | Consequence | Patients, in whom this mutation was found in this study/ Reference of first description of the mutation |
---|---|---|---|---|
exon 1 | c.116C>T | p.S39F | missense | #80/ Dirik et al. 2008 |
exon 1 | c.127C>T | p.Q43* | nonsense | #32/ Dantas et al. 2005 |
exon 3 | c.214C>T | p.R72* | nonsense | #40/ Dantas et al. 2005 |
exon 3 | c.243dupT | p.L81Ifs*7a | insertion/frameshift | Stadler et al. 2006 |
intron 3 | c.281+5G>A | p.? | splice | Stadler et al. 2006 |
intron 3 | c.281+5G>T | p.G67Lfs*35b | splice/exon 3 skippingb | Gallardo et al. 2001 |
intron3 | c.282-1G>C | p.S95_G128delc | splice/exon 4 skipping | #33/ Dantas et al. 2005 |
exon 4 | c.295G>C | p.E99Q | missense | #24, 29, 90, 91/ Baumgartner et al. 2001, Holzinger et al. 2001 |
exon 4 | c.302C>T | p.S101F | missense | Stadler et al. 2006 |
exon 4
|
c.351_353delTGG
|
p.G118del
|
deletion
|
#51, 55/ This study
|
intron 4 | c.383+1G>T | p.? | splice | Stadler et al. 2006 |
intron 4 | c.384-2A>G | p.? | splice | Stadler et al. 2006 |
exon 5
|
c.392G>T
|
p.C131F
|
missense
|
#99a/ This study
|
exon 5 | c.416_427del12ins16 | p.T139_G143>RWVPGEfs*35 | deletion/insertion/frameshift | #40, 66/ Dantas et al. 2005 |
exon 5
|
c.436T>A
|
p.Y146N
|
missense
|
#66/ This study
|
exon 5
|
c.455A>C
|
p.K152T
|
missense
|
#72/ This study
|
exon 5 | c.463C>T | p.R155W | missense | #44, 77/ Dantas et al. 2005 |
exon 5 | c.464G>A | p.R155Q | missense | #22, 63, 67/ Baumgartner et al. 2001 |
exon 5 | c.469C>T | p.Q157* | nonsense | #23/ Dantas et al. 2005 |
exon 5 | c.499T>C | p.C167R | missense | Gallardo et al. 2001 |
exon 5
|
c.505T>G
|
p.Y169D
|
missense
|
#100/ This study
|
intron 5 | c.512-1G>Ad | p.? | splice | #82a, 82b/ Baumgartner et al. 2001 |
exon 6 | c.517dupT | p.S173Ffs*25 | insertion/frameshift | #39, 85/ Baumgartner et al. 2001,Gallardo et al 2001 |
exon 6 | c.518C>T | p.S173L | missense | #108, 137/ Baumgartner et al. 2001 |
exon 6 | c.538C>T | p.R180* | nonsense | #58/ Stadler et al. 2006 |
exon 6 | c.568C>T | p.H190Y | missense | Dantas et al. 2005 |
exon 6 | c.569A>G | p.H190R | missense | Uematsu et al. 2007 |
exon 6 | c.577C>T | p.R193C | missense | Baumgartner et al. 2001 |
exon 6 | c.578G>A | p.R193H | missense | Stadler et al. 2006 |
exon 6 | c.592C>T | p.Q198* | nonsense | Uematsu et al. 2007 |
exon 6
|
c.599T>A
|
p.I200N
|
missense
|
#85/ This study
|
exon 7 | c.652G>A | p.A218T | missense | Gallardo et al. 2001 |
exon 7 | c.653C>T | p.A218V | missense | Morscher et al. 2012 |
exon 7 | c.653_654delCAinsTT | p.A218V | missense | Uematsu et al. 2007 |
exon 7
|
c.659G>A
|
p.G220E
|
missense
|
#55/ This study
|
exon 7
|
c.671C>T
|
p.P224L
|
missense
|
#78/ This study
|
exon 7
|
c.710G>A
|
p.G237D
|
missense
|
#92/ This study
|
exon 8 | c.797A>Te | p.H266Le | missense | Stadler et al. 2006 |
exon 8 | c.803G>C (r.785_803del) | p.R268T (p.G262_R268delfs*5) | missense/splice | #21, 52, 64/ Holzinger et al. 2001, Dantas et al. 2005 |
exon 9 | c.838G>T | p.D280Y | missense | Uematsu et al. 2007 |
exon 9 | c.845A>G | p.H282R | missense | #34/ Dantas et al. 2005 |
intron 9
|
c.903+6_903+9delTACG
|
p.?
|
splice/RNA nd
|
#72/ This study
|
exon 10 | c.929C>G | p.P310R | missense | #42/ Baumgartner et al. 2001 |
exon 10 | c.994C>T | p.R332* | nonsense | Dantas et al. 2005 |
exon 11 | c.1015G>A | p.V339M | missense | #67, 81, 90, 111/ Baumgartner et al. 2001 |
exon 11 | c.1019A>T | p.D340V | missense | Stadler et al. 2006 |
exon 11 | c.1054G>A (r.1054G>A + r.1000_1072delins r.999+858_r.999+922) | p.G352R + (p.V334_G358delins KFFMKYFLRLDLNSYNSTWQH) | missense/splice (skip exon 11, insert 64 bp from intron 10) | Dantas et al. 2005 |
exon 11 | c.1054_1055delGG | p.G352Rfs*27f | deletion/frameshift | Uematsu et al. 2007 |
exon 11 | c.1065A>T | p.L355F | missense | Nguyen et al. 2011 |
intron 11
|
c.1073-12C>G (r.1073_1216del+ r.1073insr.1073-48_r.1073-1)
|
2 transkripts: (p.G358Vfs*6+p. G358Afs*12)
|
splice/2 transkripts: exon 12 and 13 skipping, insertion of 48 bp from intron 11
|
#100/ This study
|
exon 12 | c.1123G>T | p.V375F | missense | #39/ Dantas et al. 2005 |
intron 12
|
c.1149+1G>T
|
p.?
|
splice
|
#136 / This study
|
intron12
|
c.1149+5G>C
|
p.?
|
splice
|
#92/ This study
|
exon 13 | c.1208A>C | p.N403T | missense | Stadler et al. 2006 |
exon 14
|
c.1300G>C
|
p.V434L
|
missense
|
#126/ This study
|
exon 14 | c.1309A>G(r.1309A>G+ r.1310_1373del64) | 2 transkripts: (p.I437V+p.I437Tfs*15) | missense/splice (cryptic splice donor resulting in deletion of the last 64 bp of exon 14) | #111/ Baumgartner et al. 2001 |
exon 14 | c.1367C>T | p.A456V | missense | #37/ Dantas et al. 2005 |
exon 15
|
c.1423G>A
|
p.G475R
|
missense
|
#125/ This study
|
exon 15
|
c.1423G>C
|
p.G475R
|
missense
|
#127/ This study
|
exon 15 | c.1430A>G | p.Q477R | missense | Nguyen et al. 2011 |
exon 15 | c.1465C>T | p.Q489* | nonsense | Stadler et al. 2006 |
exon 16 | c.1549G>A | p.G517R | missense | Nguyen et al. 2011 |
exon 16 | c.1559A>C | p.Y520S | missense | Nguyen et al. 2011 |
exon 16 | c.1567A>G | p.S523G | missense | #56, 69/ Morscher et al. 2011 |
intron 16 | c.1574+1G>A | p.F497Gfs*4g | splice, exon 16 skipping | #29, 30/ Dantas et al. 2005 |
exon 17 | c.1624_1625dupGGh | p.L543Vfs*11 | insertion/frameshift | Uematsu et al. 2007 |
exon 17 | c.1663A>G | p.K555E | missense | Stadler et al. 2006 |
exon 17 | c.1690T>C | p.X564QLE | add 3 aa at C-terminus | #26/ Dantas et al. 2005 |
Expression studies and Western blot analysis
Allele | PCC and MCC activities (pmol/min/mg protein)* | |||||
---|---|---|---|---|---|---|
Experiment 1 | Experiment 2 | |||||
PCC | MCC | %** | PCC | MCC | %** | |
MCCC1-wildtype | 311 | 193 | 100 | 331 | 157 | 100 |
vector only | 335 | 0 | 0 | 377 | 0.3 | 0.2 |
MCCC1-p.E288G | 283 | 0 | 0 | 352 | 1.8 | 1.1 |
MCCC1-p.G379D | 293 | 0 | 0 | 326 | 0 | 0 |
MCCC1-p.I434M | 330 | 87.6 | 45.4 | 324 | 74.5 | 47.4 |
MCCC2-wildtype | 377 | 75.4 | 100 | 341 | 49.4 | 100 |
vector only | 364 | 0.3 | 0.4 | 346 | 0 | 0 |
MCCC2-p.S39F | 398 | 29.6 | 39.3 | 368 | 24.8 | 50.2 |
MCCC2-p.G118del | 366 | 10.8 | 14.3 | 342 | 3.2 | 6.5 |
MCCC2-p.Y146N | 341 | 58.7 | 77.9 | 372 | 44.1 | 89.3 |
MCCC2-p.H282R | 301 | 9.6 | 12.7 | 339 | 2.3 | 4.7 |
MCCC2-p.A456V | 265 | 2.0 | 2.7 | 340 | 0.1 | 0.2 |
MCCC2-p.S523G | 313 | 56.1 | 74.4 | 344 | 30.9 | 62.6 |
MCCC2-wildtype | 335 | 76.9 | 100 | 446 | 43.5 | 100 |
vector only | 371 | 0 | 0 | 540 | 0.5 | 1.1 |
MCCC2-p.V434L | 295 | 56.6 | 73.7 | 449 | 33.5 | 77.0 |
MCCC2-p.G475R | 290 | 33.7 | 43.8 | 414 | 21.1 | 48.5 |