MCCC1
Methylcrotonoyl-CoA carboxylase subunit alpha, mitochondrial
Also known as: MCCA, MCCA_HUMAN, MCCCalpha
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- Q96RQ3
- Gene
- MCCC1
- Ensembl
- ENSG00000078070
- Chromosome
- 3
- Canonical length
- 725 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Plasma proteins, Potential drug targets, Predicted intracellular proteins
- Subcellular location
- Mitochondria
OverviewNCBI Gene
This gene encodes the large subunit of 3-methylcrotonyl-CoA carboxylase. This enzyme functions as a heterodimer and catalyzes the carboxylation of 3-methylcrotonyl-CoA to form 3-methylglutaconyl-CoA. Mutations in this gene are associated with 3-Methylcrotonylglycinuria, an autosomal recessive disorder of leucine catabolism. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
725 residues, UniProt reviewed canonical sequence.
>Q96RQ3|MCCC1
1 MAAASAVSVL LVAAERNRWH RLPSLLLPPR TWVWRQRTMK YTTATGRNIT KVLIANRGEI
61 ACRVMRTAKK LGVQTVAVYS EADRNSMHVD MADEAYSIGP APSQQSYLSM EKIIQVAKTS
121 AAQAIHPGCG FLSENMEFAE LCKQEGIIFI GPPPSAIRDM GIKSTSKSIM AAAGVPVVEG
181 YHGEDQSDQC LKEHARRIGY PVMIKAVRGG GGKGMRIVRS EQEFQEQLES ARREAKKSFN
241 DDAMLIEKFV DTPRHVEVQV FGDHHGNAVY LFERDCSVQR RHQKIIEEAP APGIKSEVRK
301 KLGEAAVRAA KAVNYVGAGT VEFIMDSKHN FCFMEMNTRL QVEHPVTEMI TGTDLVEWQL
361 RIAAGEKIPL SQEEITLQGH AFEARIYAED PSNNFMPVAG PLVHLSTPRA DPSTRIETGV
421 RQGDEVSVHY DPMIAKLVVW AADRQAALTK LRYSLRQYNI VGLHTNIDFL LNLSGHPEFE
481 AGNVHTDFIP QHHKQLLLSR KAAAKESLCQ AALGLILKEK AMTDTFTLQA HDQFSPFSSS
541 SGRRLNISYT RNMTLKDGKN NVAIAVTYNH DGSYSMQIED KTFQVLGNLY SEGDCTYLKC
601 SVNGVASKAK LIILENTIYL FSKEGSIEID IPVPKYLSSV SSQETQGGPL APMTGTIEKV
661 FVKAGDKVKA GDSLMVMIAM KMEHTIKSPK DGTVKKVFYR EGAQANRHTP LVEFEEEESD
721 KRESELocalizationUniProt · AlphaFold · HPA
Whether an antibody against MCCC1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.
- Antibody reachability
- Intracellular
- Secreted
- No
- Transmembrane segments
- 0
- Mean surface accessibility (rSASA)
- 0.28
- Highest tissue expression
- 55 nTPM
Expression across tissuesHPA
Tissue
- liver: 55 nTPM
- kidney: 54 nTPM
- adipose tissue: 35 nTPM
- heart muscle: 32 nTPM
- breast: 31 nTPM
- pancreas: 29 nTPM
Single-cell type
- alveolar cells type 2: 252 nCPM
- renal collecting duct intercalated cells: 175 nCPM
- adipocytes: 172 nCPM
- urothelial cells: 165 nCPM
- prostatic hillock cells: 149 nCPM
- renal collecting duct principal cells: 141 nCPM
Immune cell
- myeloid DC: 27 nTPM
- NK-cell: 25 nTPM
- eosinophil: 25 nTPM
- memory B-cell: 17 nTPM
- plasmacytoid DC: 17 nTPM
- non-classical monocyte: 17 nTPM
Brain region
- choroid plexus: 34 nTPM
- white matter: 30 nTPM
- cerebral cortex: 29 nTPM
- hypothalamus: 27 nTPM
- basal ganglia: 26 nTPM
- pons: 26 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about MCCC1.
Disease | AllUniProt
Conditions MCCC1 is implicated in, by any mechanism.
- 3-methylcrotonoyl-CoA carboxylase 1 deficiency (MCC1D) MIM:210200
Disease | GeneticClinVar
204 pathogenic / likely-pathogenic of 999 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- 3-methylcrotonyl-CoA carboxylase 1 deficiency
- Methylcrotonyl-CoA carboxylase deficiency
- MCCC1-related disorder
- Inborn genetic diseases
- Cervical cancer
Genetic constraint and essentialitygnomAD · DepMap
Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.
- gnomAD LOEUF (loss-of-function intolerance)
- 0.9
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.54
- DepMap mean gene effect
- -0.03
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 12% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
Molecular functions
- ATP binding
- biotin binding
- metal ion binding
- methylcrotonoyl-CoA carboxylase activity
- biotin carboxylase activity
Cellular components
Protein domainsUniProt · Pfam · InterPro
- Biotin/lipoyl attachment
- Biotin-binding site
- Carbamoyl phosphate synthase, ATP-binding domain
- Biotin carboxylase-like, N-terminal domain
- Biotin carboxylase, C-terminal
- Single hybrid motif
- Rudiment single hybrid motif
- ATP-grasp fold
- Biotin carboxylation domain
- Pre-ATP-grasp domain superfamily
- Biotin-dependent Carboxylase Complex
- Biotin carboxylase, N-terminal domain
- Biotin-requiring enzyme
- Biotin carboxylase C-terminal domain
- Carbamoyl-phosphate synthase L chain, ATP binding domain
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of MCCC1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads MCCC1 as an antibody target. Whether an autoantibody or antibody against MCCC1 could matter depends on whether native MCCC1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
MCCC1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.
Annotation status
The present source text does not explicitly label MCCC1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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