Chromosome 12
Chromosome 12 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 12 spans about 133 million base pairs (the building material of DNA) and represents between 4 and 4.5 percent of the total DNA in cells.
Chromosome 12 contains the Homeobox C gene cluster.

# Genes

## Number of genes
The following are some of the gene count estimates of human chromosome 12. Because researchers use different approaches to genome annotation their predictions of the number of genes on each chromosome varies (for technical details, see gene prediction). Among various projects, the collaborative consensus coding sequence project (CCDS) takes an extremely conservative strategy. So CCDS's gene number prediction represents a lower bound on the total number of human protein-coding genes.

## Gene list
The following is a partial list of genes on human chromosome 12. For complete list, see the link in the infobox on the right.
- ACAD10: encoding protein Acyl-CoA dehydrogenase family, member 10
- ACSS3: encoding protein Acyl-CoA synthetase short-chain family member 3
- ACVRL1: activin A receptor type II-like 1f
- APOF: encoding protein Apolipoprotein F
- APOLD1: apolipoprotein L domain containing 1
- ARL6IP4: encoding protein ADP-ribosylation-like factor 6 interacting protein 4
- ARPC3: encoding protein Actin-related protein 2/3 complex subunit 3
- Asun: encoding protein Protein asunder homolog (Asun)
- ATG101: Autophagy-related protein 101
- BCAT1: encoding protein Branched chain amino acid transaminase 1
- C12orf42: encoding protein uncharacterised chromosome 12 open reading frame 42
- C12orf43: encoding protein. Uncharacterized.
- C12orf60: encoding protein Uncharacterized protein C12orf60
- CALCOCO1: Calcium-binding and coiled-coil domain-containing protein 1
- CBX5: chromobox homolog 5
- CCDC53: Coiled-coil domain-containing protein 53
- CKAP4: Cytoskeleton associated protein 4
- CNOT2: encoding protein CCR4-NOT transcription complex subunit 2
- CNPY2: encoding protein Canopy FGF signaling regulator 2
- CCDC42B: encoding protein Coiled Coil Domain Containing protein 42B
- COL2A1: collagen, type II, alpha 1 (primary osteoarthritis, spondyloepiphyseal dysplasia, congenital)
- CRACR2A: encoding protein Calcium release activated channel regulator 2A
- CSRP2: Cysteine and glycine-rich protein 2
- DDX23: DEAD-box helicase 23
- DDX47: DEAD-box helicase 47
- DHH: Desert hedgehog protein
- DPPA3: Developmental pluripotency-associated protein 3
- DPY19L2: encoding protein Dpy-19-like 2 (C. elegans)
- E2F7: E2F transcription factor 7
- EMP1: Epithelial membrane protein 1
- ERGIC2: encoding protein a protein of 377 amino acid residues
- FAM60A: encoding protein FAM60A
- FAM186B: encoding protein Protein FAM186B
- GPD1: encoding protein Glycerol-3-phosphate dehydrogenase 1
- GOLT1B: Golgi transport 1B
- GPN3: encoding enzyme GPN-loop GTPase 3
- HNF1A-AS1: encoding protein HNF1A antisense RNA 1
- HPD: 4-hydroxyphenylpyruvate dioxygenase
- IFFO1: encoding protein Intermediate filament family orphan 1
- KANSL2: encoding protein KAT8 regulatory NSL complex subunit 2 (KANSL2)
- KCNA1: potassium voltage-gated channel subfamily A member 1 at 12p13.32
- KDM2B: encoding protein Lysine (K)-specific demethylase 2B
- KERA: keratocan
- KRAS: V-Ki-ras2 Kirsten rat sarcoma viral oncogene homolog
- LARP4: encoding protein La-related protein 4
- LEPREL2: encoding enzyme Prolyl 3-hydroxylase 3
- LMBR1L: encoding protein Protein LMBR1L
- LRRC23: encoding protein Leucine-rich repeat-containing protein 23
- LRRIQ1: encoding protein Leucine-rich repeats and IQ motif containing 1
- LRRK2: leucine-rich repeat kinase 2
- MBOAT5: encoding enzyme Lysophospholipid acyltransferase 5
- METTL1: encoding enzyme tRNA (guanine-N(7)-)-methyltransferase
- MFAP5: encoding protein Microfibrillar-associated protein 5
- MIR196A2: encoding microRNA MicroRNA 196a-2
- MMAB: methylmalonic aciduria (cobalamin deficiency) cblB type
- MON2: encoding protein Protein MON2 homolog
- MUCL1: encoding protein Mucin-like protein 1
- MYO1A: myosin IA
- NANOG: NK-2 type homeodomain gene
- NAP1L1: encoding protein Nucleosome assembly protein 1-like 1
- NRIP2: encoding protein Nuclear receptor-interacting protein 2
- NUDT4: encoding enzyme Diphosphoinositol polyphosphate phosphohydrolase 2
- PAH: phenylalanine hydroxylase
- PIP4K2C: encoding protein Phosphatidylinositol-5-phosphate 4-kinase, type II, gamma
- PIWIL1: encoding protein Piwi-like protein 1
- POP5: encoding enzyme Ribonuclease P/MRP protein subunit POP5
- PPHLN1: encoding protein Periphilin-1
- PPP1R12A: protein phosphatase 1, regulatory (inhibitor) subungfdit 12A
- PRB1: encoding protein Basic salivary proline-rich protein 1
- PRB3: encoding protein Basic salivary proline-rich protein 3
- PRB4: encoding protein Basic salivary proline-rich protein 4
- PZP: encoding protein Pregnancy zone protein
- PRH1: encoding protein Salivary acidic proline-rich phosphoprotein 1/2
- PRH2: encoding protein Proline-rich protein HaeIII subfamily 2
- PRR4: encoding protein Proline-rich protein 4
- PTMS: encoding protein Parathymosin
- PTPN11: protein tyrosine phosphatase, non-receptor type 11 (Noonan syndrome 1)
- PUS1: encoding enzyme tRNA pseudouridine synthase A
- PUS7L: encoding enzyme Pseudouridylate synthase 7 homolog-like protein
- RAB3IP: encoding protein RAB3A-interacting protein
- RASSF8: encoding protein Ras association domain-containing protein 8
- RASSF9: encoding protein Ras association domain-containing protein 9
- RERG: encoding protein RAS-like, estrogen-regulated, growth inhibitor
- RNF34: encoding enzyme E3 ubiquitin-protein ligase RNF34
- SARNP: SAP domain-containing ribonucleoprotein
- Serpina3f: encoding protein Serine (or cysteine) peptidase inhibitor, clade A, member 3F
- SLC8B1: solute carrier family 8 member B1
- TBC1D15: encoding protein TBC1 domain family member 15
- TBX3: encoding protein T-box transcription factor 3
- TCHP: encoding protein Trichoplein keratin filament-binding protein
- TESPA1: encoding protein Thymocyte expressed, positive selection associated 1
- THAP2: encoding protein THAP domain-containing protein 2
- TMTC1: encoding protein Transmembrane and tetratricopeptide repeat containing 1
- TMEM117: encoding protein Transmembrane protein 117
- TRAFD1: encoding protein TRAF-type zinc finger domain-containing protein 1
- TSFM: encoding protein Elongation factor Ts, mitochondrial
- TWF1: twinfilin-1
- UNQ1887:
- USP52: encoding enzyme PAB-dependent poly(A)-specific ribonuclease subunit 2
- UTP20: encoding protein Small subunit processome component 20 homolog
- VEZT: encoding protein Vezatin
- YAF2: encoding protein YY1-associated factor 2
- ZCCHC8: encoding protein Zinc finger CCHC domain-containing protein 8
- ZFC3H1: encoding protein Zinc finger C3H1-type containing
- ZNF26: encoding protein Zinc finger protein 26
- ZNF84: encoding protein Zinc finger protein 84
- ZNF268: encoding protein Zinc finger protein 268
- ZNF664: encoding protein Zinc finger protein 664

# Diseases and disorders
The following diseases are some of those related to genes on chromosome 12:
- achondrogenesis type 2
- collagenopathy, types II and XI
- cornea plana 2
- episodic ataxia
- hereditary hemorrhagic telangiectasia
- hypochondrogenesis
- ichthyosis bullosa of Siemens
- Kniest dysplasia
- Kabuki syndrome
- maturity onset diabetes of the young type 3
- methylmalonic acidemia
- narcolepsy
- nonsyndromic deafness
- Noonan syndrome
- Parkinson disease
- Pallister-Killian syndrome (tetrasomy 12p)
- phenylketonuria
- spondyloepimetaphyseal dysplasia, Strudwick type
- spondyloepiphyseal dysplasia congenita
- spondyloperipheral dysplasia
- Stickler syndrome, (COL2A1-related)
- Stuttering
- Triose Phosphate Isomerase deficiency
- tyrosinemia
- Von Willebrand Disease

# Cytogenetic band