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Aliases for MCCC2 Gene

Aliases for MCCC2 Gene

  • Methylcrotonoyl-CoA Carboxylase 2 2 3 5
  • 3-Methylcrotonyl-CoA Carboxylase Non-Biotin-Containing Subunit 3 4
  • 3-Methylcrotonyl-CoA:Carbon Dioxide Ligase Subunit Beta 3 4
  • Methylcrotonoyl-Coenzyme A Carboxylase 2 (Beta) 2 3
  • 3-Methylcrotonyl-CoA Carboxylase 2 3 4
  • MCCase Subunit Beta 3 4
  • EC 4 61
  • MCCB 3 4
  • Non-Biotin Containing Subunit Of 3-Methylcrotonyl-CoA Carboxylase 3
  • Methylcrotonoyl-CoA Carboxylase Beta Chain, Mitochondrial 3
  • Methylcrotonoyl-CoA Carboxylase 2 (Beta) 3
  • Methylcrotonoyl-CoA Carboxylase Beta 2
  • Testicular Secretory Protein Li 29 3
  • Biotin Carboxylase 3

External Ids for MCCC2 Gene

Previous GeneCards Identifiers for MCCC2 Gene

  • GC05P069689
  • GC05P071116
  • GC05P070921
  • GC05P070967
  • GC05P070918
  • GC05P066088
  • GC05P070883

Summaries for MCCC2 Gene

Entrez Gene Summary for MCCC2 Gene

  • This gene encodes the small 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]

GeneCards Summary for MCCC2 Gene

MCCC2 (Methylcrotonoyl-CoA Carboxylase 2) is a Protein Coding gene. Diseases associated with MCCC2 include 3-Methylcrotonyl-Coa Carboxylase 2 Deficiency and 3 Alpha Methylcrotonyl-Coa Carboxylase 2 Deficiency. Among its related pathways are Defects in biotin (Btn) metabolism and Diseases of metabolism. GO annotations related to this gene include ligase activity and methylcrotonoyl-CoA carboxylase activity. An important paralog of this gene is PCCB.

UniProtKB/Swiss-Prot for MCCC2 Gene

  • Carboxyltransferase subunit of the 3-methylcrotonyl-CoA carboxylase, an enzyme that catalyzes the conversion of 3-methylcrotonyl-CoA to 3-methylglutaconyl-CoA, a critical step for leucine and isovaleric acid catabolism.

No data available for Tocris Summary , Gene Wiki entry , PharmGKB "VIP" Summary , fRNAdb sequence ontologies and piRNA Summary for MCCC2 Gene

Genomics for MCCC2 Gene

Regulatory Elements for MCCC2 Gene

Enhancers for MCCC2 Gene
GeneHancer Identifier Enhancer Score Enhancer Sources Gene-Enhancer Score TSS distance (kb) Number of Genes Away Size (kb) Transcription Factor Binding Sites within enhancer Gene Targets for Enhancer
- Elite enhancer/Elite enhancer-gene association

Enhancers around MCCC2 on UCSC Golden Path with GeneCards custom track

Promoters for MCCC2 Gene
Ensembl Regulatory Elements (ENSRs) TSS Distance (bp) Size (bp) Binding Sites for Transcription Factors within promoters

Genomic Location for MCCC2 Gene

71,587,288 bp from pter
71,658,706 bp from pter
71,419 bases
Plus strand

Genomic View for MCCC2 Gene

Genes around MCCC2 on UCSC Golden Path with GeneCards custom track

Cytogenetic band:
MCCC2 Gene in genomic location: bands according to Ensembl, locations according to GeneLoc (and/or Entrez Gene and/or Ensembl if different)
Genomic Location for MCCC2 Gene
GeneLoc Logo Genomic Neighborhood Exon StructureGene Density

RefSeq DNA sequence for MCCC2 Gene

Proteins for MCCC2 Gene

  • Protein details for MCCC2 Gene (UniProtKB/Swiss-Prot)

    Protein Symbol:
    Recommended name:
    Methylcrotonoyl-CoA carboxylase beta chain, mitochondrial
    Protein Accession:
    Secondary Accessions:
    • A6NIY9
    • Q96C27
    • Q9Y4L7

    Protein attributes for MCCC2 Gene

    563 amino acids
    Molecular mass:
    61333 Da
    Quaternary structure:
    • Probably a dodecamer composed of six biotin-containing alpha subunits (MCCC1) and six beta (MCCC2) subunits.
    • Sequence=AAH14897.1; Type=Frameshift; Positions=359; Evidence={ECO:0000305};

    Alternative splice isoforms for MCCC2 Gene


neXtProt entry for MCCC2 Gene

Post-translational modifications for MCCC2 Gene

  • Modification sites at PhosphoSitePlus
  • Modification sites at neXtProt

Other Protein References for MCCC2 Gene

Antibody Products

  • Abcam antibodies for MCCC2
  • Cloud-Clone Corp. Antibodies for MCCC2

Domains & Families for MCCC2 Gene

Protein Domains for MCCC2 Gene

Suggested Antigen Peptide Sequences for MCCC2 Gene

GenScript: Design optimal peptide antigens:

Graphical View of Domain Structure for InterPro Entry



  • Contains 1 carboxyltransferase domain.
  • Belongs to the AccD/PCCB family.
  • Contains 1 carboxyltransferase domain.
  • Belongs to the AccD/PCCB family.
genes like me logo Genes that share domains with MCCC2: view

No data available for Gene Families for MCCC2 Gene

Function for MCCC2 Gene

Molecular function for MCCC2 Gene

UniProtKB/Swiss-Prot BiophysicochemicalProperties:
Kinetic parameters: KM=45 uM for ATP {ECO:0000269 PubMed:17360195}; KM=74 uM for 3-methylcrotonyl-CoA {ECO:0000269 PubMed:17360195}; Note=kcat is 4.0 sec(-1).;
UniProtKB/Swiss-Prot CatalyticActivity:
ATP + 3-methylcrotonoyl-CoA + HCO(3)(-) = ADP + phosphate + 3-methylglutaconyl-CoA.
UniProtKB/Swiss-Prot Function:
Carboxyltransferase subunit of the 3-methylcrotonyl-CoA carboxylase, an enzyme that catalyzes the conversion of 3-methylcrotonyl-CoA to 3-methylglutaconyl-CoA, a critical step for leucine and isovaleric acid catabolism.

Enzyme Numbers (IUBMB) for MCCC2 Gene

Gene Ontology (GO) - Molecular Function for MCCC2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0004485 contributes_to methylcrotonoyl-CoA carboxylase activity NAS 11170888
GO:0005515 protein binding IPI 17360195
GO:0005524 ATP binding IEA --
genes like me logo Genes that share ontologies with MCCC2: view
genes like me logo Genes that share phenotypes with MCCC2: view

Human Phenotype Ontology for MCCC2 Gene

HPO Id HPO Name Alternative Ids Definition Synonyms

Animal Model Products

CRISPR Products

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

No data available for Animal Models , Transcription Factor Targets and HOMER Transcription for MCCC2 Gene

Localization for MCCC2 Gene

Subcellular locations from UniProtKB/Swiss-Prot for MCCC2 Gene

Mitochondrion matrix.

Subcellular locations from

Jensen Localization Image for MCCC2 Gene COMPARTMENTS Subcellular localization image for MCCC2 gene
Compartment Confidence
mitochondrion 5
cytosol 4
extracellular 1
peroxisome 1
plasma membrane 1

Gene Ontology (GO) - Cellular Components for MCCC2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0002169 3-methylcrotonyl-CoA carboxylase complex, mitochondrial TAS 22869039
GO:0005739 mitochondrion IEA,NAS 11181649
GO:0005759 mitochondrial matrix TAS --
GO:0005829 cytosol TAS --
genes like me logo Genes that share ontologies with MCCC2: view

Pathways & Interactions for MCCC2 Gene

genes like me logo Genes that share pathways with MCCC2: view

UniProtKB/Swiss-Prot Q9HCC0-MCCB_HUMAN

  • Pathway: Amino-acid degradation; L-leucine degradation; (S)-3-hydroxy-3-methylglutaryl-CoA from 3-isovaleryl-CoA: step 2/3.

Gene Ontology (GO) - Biological Process for MCCC2 Gene

GO ID Qualified GO term Evidence PubMed IDs
GO:0006552 leucine catabolic process TAS 11170888
GO:0006768 biotin metabolic process TAS --
GO:0009083 branched-chain amino acid catabolic process TAS --
GO:0015936 coenzyme A metabolic process IEA --
GO:0051291 protein heterooligomerization NAS 11170888
genes like me logo Genes that share ontologies with MCCC2: view

No data available for SIGNOR curated interactions for MCCC2 Gene

Drugs & Compounds for MCCC2 Gene

(3) Drugs for MCCC2 Gene - From: DrugBank and HMDB

Name Status Disease Links Group Role Mechanism of Action Clinical Trials
Biotin Approved Nutra Target 40
Phosphoric acid Approved Pharma 0
Adenosine triphosphate Approved Nutra 0

(7) Additional Compounds for MCCC2 Gene - From: HMDB

Name Synonyms Role CAS Number PubChem IDs PubMed IDs
(E)-2-Methylglutaconic acid
  • (E)-2-methyl-2-Pentenedioate
  • (E)-2-methyl-2-Pentenedioic acid
  • (E)-2-Methylglutaconate
  • trans-2-Methylglutaconate
  • trans-2-Methylglutaconic acid
  • 3-Methylbut-2-enoyl-CoA
  • 3-Methylbut-2-enoyl-Coenzyme A
  • 3-Methylcrotonoyl-CoA
  • 3-Methylcrotonoyl-Coenzyme A
  • 3-Methylcrotonyl-CoA
  • 3-Methylglutaconyl-CoA
  • 3-Methylglutaconyl-Coenzyme A
  • trans-3-Methylglutaconyl-CoA
  • trans-3-Methylglutaconyl-Coenzyme A
  • Adenosindiphosphorsaeure
  • Adenosine 5'-pyrophosphate
  • Adenosine diphosphate
  • Adenosine pyrophosphate
  • Adenosine-5'-diphosphate
Full agonist, Agonist 58-64-0
Carbonic acid
  • Acid of air
  • Aerial acid
  • Bisodium carbonate
  • Calcined
  • Carbonic acid sodium salt
genes like me logo Genes that share compounds with MCCC2: view

Transcripts for MCCC2 Gene

Unigene Clusters for MCCC2 Gene

Methylcrotonoyl-CoA carboxylase 2 (beta):
Representative Sequences:

CRISPR Products

Inhibitory RNA Products

Clone Products

Flow Cytometry Products

Alternative Splicing Database (ASD) splice patterns (SP) for MCCC2 Gene

ExUns: 1a · 1b ^ 2a · 2b ^ 3 ^ 4 ^ 5a · 5b ^ 6 ^ 7 ^ 8 ^ 9a · 9b ^ 10a · 10b ^ 11a · 11b · 11c ^ 12a · 12b ^ 13 ^ 14 ^ 15 ^ 16 ^ 17
SP1: - - - - - -
SP2: - - - - -
SP3: -
SP5: -

Relevant External Links for MCCC2 Gene

GeneLoc Exon Structure for
ECgene alternative splicing isoforms for

Expression for MCCC2 Gene

mRNA expression in normal human tissues for MCCC2 Gene

mRNA expression in embryonic tissues and stem cells from LifeMap Discovery

Protein differential expression in normal tissues from HIPED for MCCC2 Gene

This gene is overexpressed in Breast (8.9), Heart (8.2), and Liver (7.4).

Integrated Proteomics: protein expression in normal tissues and cell lines from ProteomicsDB, PaxDb, MaxQB, and MOPED for MCCC2 Gene

Protein tissue co-expression partners for MCCC2 Gene

- Elite partner

NURSA nuclear receptor signaling pathways regulating expression of MCCC2 Gene:


SOURCE GeneReport for Unigene cluster for MCCC2 Gene:

genes like me logo Genes that share expression patterns with MCCC2: view

Primer Products

No data available for mRNA differential expression in normal tissues and mRNA Expression by UniProt/SwissProt for MCCC2 Gene

Orthologs for MCCC2 Gene

This gene was present in the common ancestor of eukaryotes.

Orthologs for MCCC2 Gene

Organism Taxonomy Gene Similarity Type Details
(Bos Taurus)
Mammalia MCCC2 34
  • 89.22 (n)
  • 89.52 (a)
MCCC2 35
  • 89 (a)
(Canis familiaris)
Mammalia MCCC2 34
  • 88.99 (n)
  • 87.92 (a)
MCCC2 35
  • 88 (a)
(Mus musculus)
Mammalia Mccc2 34
  • 83.96 (n)
  • 88.81 (a)
Mccc2 16
Mccc2 35
  • 89 (a)
(Pan troglodytes)
Mammalia MCCC2 34
  • 99.35 (n)
  • 99.11 (a)
MCCC2 35
  • 99 (a)
(Rattus norvegicus)
Mammalia Mccc2 34
  • 84.49 (n)
  • 88.28 (a)
(Monodelphis domestica)
Mammalia MCCC2 35
  • 83 (a)
(Ornithorhynchus anatinus)
Mammalia -- 35
  • 87 (a)
-- 35
  • 85 (a)
-- 35
  • 74 (a)
(Gallus gallus)
Aves MCCC2 34
  • 78.99 (n)
  • 84.34 (a)
MCCC2 35
  • 86 (a)
(Anolis carolinensis)
Reptilia MCCC2 35
  • 81 (a)
tropical clawed frog
(Silurana tropicalis)
Amphibia mccc2 34
  • 73.6 (n)
  • 83.79 (a)
Str.17184 34
African clawed frog
(Xenopus laevis)
Amphibia Xl.15463 34
(Danio rerio)
Actinopterygii Dr.28547 34
mccc2 34
  • 73.73 (n)
  • 83.79 (a)
mccc2 35
  • 81 (a)
fruit fly
(Drosophila melanogaster)
Insecta CG3267 36
  • 69 (a)
CG3267 34
  • 62.31 (n)
  • 70.9 (a)
CG3267 35
  • 67 (a)
African malaria mosquito
(Anopheles gambiae)
Insecta AgaP_AGAP002761 34
  • 60.83 (n)
  • 68.8 (a)
(Caenorhabditis elegans)
Secernentea F02A9.4a 36
  • 65 (a)
F02A9.4 34
  • 62.8 (n)
  • 65.73 (a)
F02A9.4 35
  • 58 (a)
thale cress
(Arabidopsis thaliana)
eudicotyledons MCCB 34
  • 58.13 (n)
  • 59.79 (a)
(Hordeum vulgare)
Liliopsida Hv.5157 34
(Oryza sativa)
Liliopsida Os.27361 34
Os08g0424200 34
  • 62.43 (n)
  • 62.87 (a)
(Triticum aestivum)
Liliopsida Ta.30569 34
(Zea mays)
Liliopsida Zm.5892 34
sea squirt
(Ciona intestinalis)
Ascidiacea Cin.13289 34
bread mold
(Neurospora crassa)
Ascomycetes NCU02127 34
  • 57.14 (n)
  • 60.95 (a)
sea squirt
(Ciona savignyi)
Ascidiacea -- 35
  • 67 (a)
Species where no ortholog for MCCC2 was found in the sources mined by GeneCards:
  • A. gosspyii yeast (Ashbya gossypii)
  • Actinobacteria (Mycobacterium tuberculosis)
  • Alicante grape (Vitis vinifera)
  • alpha proteobacteria (Wolbachia pipientis)
  • amoeba (Dictyostelium discoideum)
  • Archea (Pyrococcus horikoshii)
  • baker's yeast (Saccharomyces cerevisiae)
  • beta proteobacteria (Neisseria meningitidis)
  • Chromalveolata (Phytophthora infestans)
  • common water flea (Daphnia pulex)
  • E. coli (Escherichia coli)
  • filamentous fungi (Aspergillus nidulans)
  • Firmicute bacteria (Streptococcus pneumoniae)
  • fission yeast (Schizosaccharomyces pombe)
  • green algae (Chlamydomonas reinhardtii)
  • honey bee (Apis mellifera)
  • K. lactis yeast (Kluyveromyces lactis)
  • loblloly pine (Pinus taeda)
  • malaria parasite (Plasmodium falciparum)
  • medicago trunc (Medicago Truncatula)
  • moss (Physcomitrella patens)
  • orangutan (Pongo pygmaeus)
  • pig (Sus scrofa)
  • rainbow trout (Oncorhynchus mykiss)
  • rice blast fungus (Magnaporthe grisea)
  • schistosome parasite (Schistosoma mansoni)
  • sea anemone (Nematostella vectensis)
  • sea urchin (Strongylocentrotus purpuratus)
  • sorghum (Sorghum bicolor)
  • soybean (Glycine max)
  • stem rust fungus (Puccinia graminis)
  • sugarcane (Saccharum officinarum)
  • tomato (Lycopersicon esculentum)
  • toxoplasmosis (Toxoplasma gondii)
  • Trichoplax (Trichoplax adhaerens)

Evolution for MCCC2 Gene

Gene Tree for MCCC2 (if available)
Gene Tree for MCCC2 (if available)

Paralogs for MCCC2 Gene

Paralogs for MCCC2 Gene

(2) SIMAP similar genes for MCCC2 Gene using alignment to 4 proteins:

genes like me logo Genes that share paralogs with MCCC2: view

Variants for MCCC2 Gene

Sequence variations from dbSNP and Humsavar for MCCC2 Gene

SNP ID Clin Chr 05 pos Sequence Context AA Info Type
VAR_012792 3-methylcrotonoyl-CoA carboxylase 2 deficiency (MCC2D)
VAR_012793 3-methylcrotonoyl-CoA carboxylase 2 deficiency (MCC2D)
VAR_012794 3-methylcrotonoyl-CoA carboxylase 2 deficiency (MCC2D)
VAR_012795 3-methylcrotonoyl-CoA carboxylase 2 deficiency (MCC2D)
VAR_012796 3-methylcrotonoyl-CoA carboxylase 2 deficiency (MCC2D)

Structural Variations from Database of Genomic Variants (DGV) for MCCC2 Gene

Variant ID Type Subtype PubMed ID
esv3605391 CNV loss 21293372
nsv1034703 CNV gain 25217958
nsv328811 CNV deletion 16902084
nsv830340 CNV loss 17160897

Variation tolerance for MCCC2 Gene

Residual Variation Intolerance Score: 40.2% of all genes are more intolerant (likely to be disease-causing)
Gene Damage Index Score: 1.72; 32.67% of all genes are more intolerant (likely to be disease-causing)

Relevant External Links for MCCC2 Gene

Human Gene Mutation Database (HGMD)
SNPedia medical, phenotypic, and genealogical associations of SNPs for

No data available for Polymorphic Variants from UniProtKB/Swiss-Prot for MCCC2 Gene

Disorders for MCCC2 Gene

MalaCards: The human disease database

(7) MalaCards diseases for MCCC2 Gene - From: OMIM, ClinVar, GeneTests, Orphanet, Swiss-Prot, DISEASES, and GeneCards

Disorder Aliases PubMed IDs
3-methylcrotonyl-coa carboxylase 2 deficiency
  • 3-methylcrotonoyl-coa carboxylase 2 deficiency
3 alpha methylcrotonyl-coa carboxylase 2 deficiency
  • 3 alpha methylcrotonylglycinuria 2
3-methylcrotonyl-coa carboxylase deficiency
  • 3-methylcrotonylglycinuria
mccc2-related 3-methylcrotonyl-coa carboxylase deficiency
multiple carboxylase deficiency
  • holocarboxylase synthetase deficiency
- elite association - COSMIC cancer census association via MalaCards
Search MCCC2 in MalaCards View complete list of genes associated with diseases


  • 3-methylcrotonoyl-CoA carboxylase 2 deficiency (MCC2D) [MIM:210210]: An autosomal recessive disorder of leucine catabolism. The phenotype is variable, ranging from neonatal onset with severe neurological involvement to asymptomatic adults. There is a characteristic organic aciduria with massive excretion of 3-hydroxyisovaleric acid and 3-methylcrotonylglycine, usually in combination with a severe secondary carnitine deficiency. {ECO:0000269 PubMed:11170888, ECO:0000269 PubMed:11181649, ECO:0000269 PubMed:11406611, ECO:0000269 PubMed:16010683, ECO:0000269 PubMed:17968484, ECO:0000269 PubMed:21071250, ECO:0000269 PubMed:22150417, ECO:0000269 PubMed:22264772, ECO:0000269 PubMed:22642865}. Note=The disease is caused by mutations affecting the gene represented in this entry.

Relevant External Links for MCCC2

Genetic Association Database (GAD)
Human Genome Epidemiology (HuGE) Navigator
Atlas of Genetics and Cytogenetics in Oncology and Haematology:
genes like me logo Genes that share disorders with MCCC2: view

No data available for Genatlas for MCCC2 Gene

Publications for MCCC2 Gene

  1. Cloning of the human MCCA and MCCB genes and mutations therein reveal the molecular cause of 3-methylcrotonyl-CoA: carboxylase deficiency. (PMID: 11406611) Holzinger A. … Roscher A.A. (Hum. Mol. Genet. 2001) 3 4 22 65
  2. Mutational spectrum in eight Korean patients with 3-methylcrotonyl- CoA carboxylase deficiency. (PMID: 22150417) Cho S.Y. … Jin D.K. (Clin. Genet. 2012) 3 4 65
  3. A single mutation in MCCC1 or MCCC2 as a potential cause of positive screening for 3-methylcrotonyl-CoA carboxylase deficiency. (PMID: 22264772) Morscher R.J. … Baumgartner M.R. (Mol. Genet. Metab. 2012) 3 4 65
  4. Novel mutations in the human MCCA and MCCB gene causing methylcrotonylglycinuria. (PMID: 21071250) Nguyen K.V. … Nyhan W.L. (Mol. Genet. Metab. 2011) 3 4 65
  5. Assessment of a polymorphism of SDK1 with hypertension in Japanese Individuals. (PMID: 19851296) Oguri M. … Yamada Y. (Am. J. Hypertens. 2010) 3 46 65

Products for MCCC2 Gene

Sources for MCCC2 Gene

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