Chromosome 5

Last updated
Chromosome 5
Human male karyotpe high resolution - Chromosome 5 cropped.png
Human chromosome 5 pair after G-banding.
One is from mother, one is from father.
Human male karyotpe high resolution - Chromosome 5.png
Chromosome 5 pair
in human male karyogram.
Features
Length (bp)182,045,439 bp
(CHM13)
No. of genes 839 (CCDS) [1]
Type Autosome
Centromere position Submetacentric [2]
(48.8 Mbp [3] )
Complete gene lists
CCDS Gene list
HGNC Gene list
UniProt Gene list
NCBI Gene list
External map viewers
Ensembl Chromosome 5
Entrez Chromosome 5
NCBI Chromosome 5
UCSC Chromosome 5
Full DNA sequences
RefSeq NC_000005 (FASTA)
GenBank CM000667 (FASTA)

Chromosome 5 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 5 spans about 182 million base pairs (the building blocks of DNA) and represents almost 6% of the total DNA in cells. Chromosome 5 is the 5th largest human chromosome, yet has one of the lowest gene densities. This is partially explained by numerous gene-poor regions that display a remarkable degree of non-coding and syntenic conservation with non-mammalian vertebrates, suggesting they are functionally constrained. [4]

Contents

Because chromosome 5 is responsible for many forms of growth and development (cell divisions) changes may cause cancers. One example would be acute myeloid leukemia (AML). [5]

Genes

Number of genes

The following are some of the gene count estimates of human chromosome 5. 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. [6]

Estimated by Protein-coding genes Non-coding RNA genes Pseudogenes SourceRelease date
CCDS 839 [1] 2016-09-08
HGNC 790355574 [7] 2017-05-12
Ensembl 8821,207707 [8] 2017-03-29
UniProt 875 [9] 2018-02-28
NCBI 886981785 [10] [11] [12] 2017-05-19

Gene list

The following is a partial list of genes on human chromosome 5. For complete list, see the link in the infobox on the right.

  • ABLIM3: encoding protein Actin-binding LIM protein 3
  • ADAMTS2: ADAM metallopeptidase with thrombospondin type 1 motif, 2
  • AGXT2: Alanine-glyoxylate aminotransferase 2
  • ANKRD31: encoding protein Ankyrin repeat domain 31
  • APBB3: encoding protein Amyloid beta A4 precursor protein-binding family B member 3
  • APC: adenomatosis polyposis coli
  • ARL15: encoding protein ADP-ribosylation factor-like 15
  • BRIX1: Ribosome biogenesis protein BRX1 homolog (also BXDC2)
  • C1QTNF3: Complement C1q tumor necrosis factor-related protein 3
  • C5orf45: Chromosome 5 open reading frame 45
  • C5orf47: encoding protein Chromosome 5 open reading frame 47
  • C5orf49: encoding protein Chromosome 5 open reading frame 49
  • CAST: Calpastatin
  • CDO1: encoding protein Cysteine dioxygenase type 1
  • CPLANE1: Ciliogenesis And Planar Polarity Effector 1
  • CPLX2: Complexin-2
  • CREBRF: encoding protein CREB3 regulatory factor
  • CXXC5: CXXC-type zing finger protein 5
  • DPYSL3: Dihydropyrimidinase-like protein 3
  • EGR1: early growth response protein 1
  • ERAP1: endoplasmic reticulum aminopeptidase 1 (previously called ARTS-1)
  • ERAP2: endoplasmic reticulum aminopeptidase 2
  • ESM1: Endothelial cell-specific molecule 1
  • DTDST: diastrophic dysplasia sulfate transporter
  • EIF4E1B: encoding protein Eukaryotic translation initiation factor 4E family member 1B
  • ERCC8: excision repair cross-complementing rodent repair deficiency, complementation group 8
  • FAF2: encoding protein Fas associated factor family member 2
  • FAM172A: encoding protein UPF0528 protein FAM172A
  • FAM105B: encoding protein Family with sequence similarity 105, member B
  • FAM114A2: encoding protein FAM114A2
  • FAM71B: encoding protein Family with sequence similarity 71 member B
  • FASTKD3: FAST kinase domain-containing protein 3
  • FBXL7: F-box/LRR-repeat protein 7
  • FCHSD1: FCH and double SH3 domain protein 1
  • FGF1: fibroblast growth factor 1 (acidic fibroblast growth factor)
  • FGFR4: fibroblast growth factor receptor 4
  • GM2A: GM2 ganglioside activator
  • GNPDA1: Glucosamine-6-phosphate isomerase 1
  • GPBP1: Vasculin
  • HEXB: hexosaminidase B (beta polypeptide)
  • HMGXB3: encoding protein HMG-box containing 3
  • IK: Protein Red
  • IRX1: Iroquois-class homeodomain protein (human)
  • LARP1: La-related protein 1
  • LMAN2: Lectin mannose binding 2
  • LNCR3 encoding protein Lung cancer susceptibility 3
  • LPCAT1: Lysophosphatidylcholine acyltransferase 1
  • LYRM7: encoding protein LYR motif containing 7
  • LYSMD3: LysM and putative peptidoglycan-binding domain-containing protein 3
  • MAN2A1: Alpha-mannosidase 2
  • MASS1: monogenic, audiogenic seizure susceptibility 1 homolog (mouse)
  • MCC: Colorectal mutant cancer protein
  • MCCC2: methylcrotonoyl-Coenzyme A carboxylase 2 (beta)
  • MCEF: transcription factor AF4/FMR2 family, member 4
  • MEF2C: Myocyte-specific enhancer factor 2C
  • MEF2C-AS1: encoding protein MEF2C antisense RNA 1
  • MGAT1: Mannosyl (alpha-1,3-)-glycoprotein beta-1,2-N-acetylglucosaminyltransferase
  • MINAR2: encoding protein Kiaa1024 like
  • MIR1271: encoding MicroRNA 1271
  • MIR146A: microRNA 146a
  • MTRR: 5-methyltetrahydrofolate-homocysteine methyltransferase reductase
  • MZB1: Marginal zone B and B1 cell-specific protein
  • NIPBL: Nipped-B homolog (Drosophila)
  • NREP: Neuronal regeneration related protein
  • NSA2 encoding protein TGF beta-inducible nuclear protein 1
  • NSD1: Transcription coregulator protein
  • NSUN2: NOP2/Sun domain family, member 2
  • NR2F1: Nuclear hormone receptor
  • NSG2: encoding protein Hmp19 protein
  • NUDCD2: NudC domain-containing protein 2
  • P4HA2: Prolyl 4-hydroxylase subunit alpha-2
  • PCBD2: Pterin-4-alpha-carbinolamine dehydratase 2
  • PELO: Pelota homolog
  • PGGT1B: encoding protein Protein geranylgeranyltransferase type I subunit beta
  • PHAX: Phosphorylated adapter for RNA export
  • Pikachurin: Responsible for the functioning of the ribbon synapses; allows the eye to track moving objects
  • PFDN1: Prefoldin subunit 1
  • POLR3G: encoding protein Polymerase (RNA) III (DNA directed) polypeptide G (32kD)
  • PPIP5K2: Diphosphoinositol pentakisphosphate kinase 2
  • PRCC1: Proline-rich coiled coil 1
  • PRR16: encoding protein Proline-rich protein 16
  • PURA: Purine-rich element-binding protein A
  • PWWP2A: encoding protein PWWP domain containing 2A
  • RANBP3L: encoding protein RAN binding protein 3-like
  • RASGEF1C: encoding protein RasGEF domain family member 1C
  • RMND5B: Required for meiotic nuclear division 5 homolog B
  • SFXN1: Sideroflexin-1
  • SKIV2L2: Ski2 like RNA helicase 2
  • SLC22A5: solute carrier family 22 (organic cation transporter), member 5
  • SLC26A2: solute carrier family 26 (sulfate transporter), member 2
  • SH3TC2: domain and tetratricopeptide repeats 2
  • SLCO4C1: Solute carrier organic anion transporter family member 4c1
  • SLU7: pre-mRNA-splicing factor SLU7
  • SMN1: survival motor neuron 1, telomeric
  • SMN2: survival motor neuron 2, centromeric
  • SNCAIP: synuclein, alpha interacting protein (synphilin)
  • SPEF2: Sperm flagellar protein 2
  • SPINK5: serine protease inhibitor Kazal-type 5 (LEKTI)
  • SPINK6: serine protease inhibitor Kazal-type 6
  • SPINK9: serine protease inhibitor Kazal-type 9 (LEKTI-2)
  • SPZ1: Spermatogenic leucine zipper protein 1
  • STC2: Stanniocalcin-2
  • TBCA: Tubulin-specific chaperone A
  • TCOF1: Treacher Collins-Franceschetti syndrome 1
  • TGFBI: keratoepithelin
  • THG1L: Probable tRNA(His) guanylyltransferase
  • TICAM2: TIR domain-containing adapter molecule 2
  • TMEM171: encoding protein Transmembrane protein 171
  • TNFAIP8: Tumor necrosis factor, alpha-induced protein 8
  • TSSK1B: encoding protein Testis specific serine kinase 1b
  • TTC37: Tetratricopeptide repeat domain 37
  • UPF0488: encodes G protein-coupled receptor protein signaling pathway
  • YIPF5: Yip1 domain family member 5
  • YTHDC2: encoding protein YTH domain containing 2
  • ZBED3: Zinc finger BED domain-containing protein 3
  • ZNF608: encoding protein Zinc finger protein 608

Diseases and disorders

The following are some of the diseases related to genes located on chromosome 5:

Chromosomal conditions

The following conditions are caused by changes in the structure or number of copies of chromosome 5:

Researchers have defined narrow regions of the short arm of chromosome 5 that are associated with particular features of cri-du-chat syndrome. A specific region designated 5p15.3 is associated with a cat-like cry, and a nearby region called 5p15.2 is associated with mental retardation, small head (microcephaly), and distinctive facial features.

Cytogenetic band

G-banding ideograms of human chromosome 5
Human chromosome 5 ideogram vertical.svg
G-banding ideogram of human chromosome 5 in resolution 850 bphs. Band length in this diagram is proportional to base-pair length. This type of ideogram is generally used in genome browsers (e.g. Ensembl, UCSC Genome Browser).
Human chromosome 05 - 400 550 850 bphs.png
G-banding patterns of human chromosome 5 in three different resolutions (400, [16] 550 [17] and 850 [3] ). Band length in this diagram is based on the ideograms from ISCN (2013). [18] This type of ideogram represents actual relative band length observed under a microscope at the different moments during the mitotic process. [19]
G-bands of human chromosome 5 in resolution 850 bphs [20]
Chr.Arm [21] Band [22] ISCN
start [23]
ISCN
stop [23]
Basepair
start
Basepair
stop
Stain [24] Density
5p15.33027814,400,000gneg
5p15.322784014,400,0016,300,000gpos25
5p15.314015556,300,0019,900,000gneg
5p15.25558029,900,00115,000,000gpos50
5p15.180297215,000,00118,400,000gneg
5p14.3972123418,400,00123,300,000gpos100
5p14.21234128123,300,00124,600,000gneg
5p14.11281154324,600,00128,900,000gpos100
5p13.31543183628,900,00133,800,000gneg
5p13.21836206833,800,00138,400,000gpos25
5p13.12068225338,400,00142,500,000gneg
5p122253240742,500,00146,100,000gpos50
5p112407259246,100,00148,800,000acen
5q11.12592283948,800,00151,400,000acen
5q11.22839327151,400,00159,600,000gneg
5q12.13271351859,600,00163,600,000gpos75
5q12.23518358063,600,00163,900,000gneg
5q12.33580376563,900,00167,400,000gpos75
5q13.13765401267,400,00169,100,000gneg
5q13.24012419769,100,00174,000,000gpos50
5q13.34197439774,000,00177,600,000gneg
5q14.14397475277,600,00182,100,000gpos50
5q14.24752490782,100,00183,500,000gneg
5q14.34907540083,500,00193,000,000gpos100
5q155400567893,000,00198,900,000gneg
5q21.15678587998,900,001103,400,000gpos100
5q21.258795987103,400,001105,100,000gneg
5q21.359876295105,100,001110,200,000gpos100
5q22.162956419110,200,001112,200,000gneg
5q22.264196527112,200,001113,800,000gpos50
5q22.365276666113,800,001115,900,000gneg
5q23.166666943115,900,001122,100,000gpos100
5q23.269437267122,100,001127,900,000gneg
5q23.372677468127,900,001131,200,000gpos100
5q31.174687807131,200,001136,900,000gneg
5q31.278078008136,900,001140,100,000gpos25
5q31.380088316140,100,001145,100,000gneg
5q3283168625145,100,001150,400,000gpos75
5q33.186258887150,400,001153,300,000gneg
5q33.288879072153,300,001156,300,000gpos50
5q33.390729304156,300,001160,500,000gneg
5q3493049690160,500,001169,000,000gpos100
5q35.196909952169,000,001173,300,000gneg
5q35.2995210183173,300,001177,100,000gpos25
5q35.31018310600177,100,001181,538,259gneg

Related Research Articles

<span class="mw-page-title-main">Chromosome 21</span> Human chromosome

Chromosome 21 is one of the 23 pairs of chromosomes in humans. Chromosome 21 is both the smallest human autosome and chromosome, with 45 million base pairs representing about 1.5 percent of the total DNA in cells. Most people have two copies of chromosome 21, while those with three copies of chromosome 21 have Down syndrome.

<span class="mw-page-title-main">Chromosome 1</span> Human chromosome

Chromosome 1 is the designation for the largest human chromosome. Humans have two copies of chromosome 1, as they do with all of the autosomes, which are the non-sex chromosomes. Chromosome 1 spans about 249 million nucleotide base pairs, which are the basic units of information for DNA. It represents about 8% of the total DNA in human cells.

<span class="mw-page-title-main">Chromosome 13</span> Human chromosome

Chromosome 13 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 13 spans about 113 million base pairs and represents between 3.5 and 4% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 22</span> Human chromosome

Chromosome 22 is one of the 23 pairs of chromosomes in human cells. Humans normally have two copies of chromosome 22 in each cell. Chromosome 22 is the second smallest human chromosome, spanning about 51 million DNA base pairs and representing between 1.5 and 2% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 2</span> Human chromosome

Chromosome 2 is one of the twenty-three pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 2 is the second-largest human chromosome, spanning more than 242 million base pairs and representing almost eight percent of the total DNA in human cells.

<span class="mw-page-title-main">Chromosome 3</span> Human chromosome

Chromosome 3 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 3 spans 201 million base pairs and represents about 6.5 percent of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 4</span> Human chromosome

Chromosome 4 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 4 spans more than 193 million base pairs and represents between 6 and 6.5 percent of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 7</span> Human chromosome

Chromosome 7 is one of the 23 pairs of chromosomes in humans, who normally have two copies of this chromosome. Chromosome 7 spans about 160 million base pairs and represents between 5 and 5.5 percent of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 8</span> Human chromosome

Chromosome 8 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 8 spans about 146 million base pairs and represents between 4.5 and 5.0% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 9</span> Human chromosome

Chromosome 9 is one of the 23 pairs of chromosomes in humans. Humans normally have two copies of this chromosome, as they normally do with all chromosomes. Chromosome 9 spans about 150 million base pairs of nucleic acids and represents between 4.0 and 4.5% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 10</span> Human chromosome

Chromosome 10 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 10 spans about 134 million base pairs and represents between 4 and 4.5 percent of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 11</span> Human chromosome

Chromosome 11 is one of the 23 pairs of chromosomes in humans. Humans normally have two copies of this chromosome. Chromosome 11 spans about 135 million base pairs and represents between 4 and 4.5 percent of the total DNA in cells. The shorter arm is termed 11p while the longer arm is 11q. At about 21.5 genes per megabase, chromosome 11 is one of the most gene-rich, and disease-rich, chromosomes in the human genome.

<span class="mw-page-title-main">Chromosome 12</span> Human chromosome

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 and represents between 4 and 4.5 percent of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 14</span> Human chromosome

Chromosome 14 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 14 spans about 101 million base pairs and represents between 3 and 3.5% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 15</span> Human chromosome

Chromosome 15 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 15 spans about 99.7 million base pairs and represents between 3% and 3.5% of the total DNA in cells. Chromosome 15 is an acrocentric chromosome, with a very small short arm, which contains few protein coding genes among its 19 million base pairs. It has a larger long arm that is gene rich, spanning about 83 million base pairs.

<span class="mw-page-title-main">Chromosome 16</span> Human chromosome

Chromosome 16 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 16 spans about 96 million base pairs and represents just under 3% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 17</span> Human chromosome

Chromosome 17 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 17 spans more than 84 million base pairs and represents between 2.5 and 3% of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 18</span> Human chromosome

Chromosome 18 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 18 spans about 80 million base pairs and represents about 2.5 percent of the total DNA in cells.

<span class="mw-page-title-main">Chromosome 19</span> Human chromosome

Chromosome 19 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 19 spans more than 61.7 million base pairs, the building material of DNA. It is considered the most gene-rich chromosome containing roughly 1,500 genes, despite accounting for only 2 percent of the human genome.

<span class="mw-page-title-main">Chromosome 20</span> Human chromosome

Chromosome 20 is one of the 23 pairs of chromosomes in humans. Chromosome 20 spans around 66 million base pairs and represents between 2 and 2.5 percent of the total DNA in cells. Chromosome 20 was fully sequenced in 2001 and was reported to contain over 59 million base pairs. Since then, due to sequencing improvements and fixes, the length of chromosome 20 has been updated to just over 66 million base pairs.

References

  1. 1 2 "Search results - 5[CHR] AND "Homo sapiens"[Organism] AND ("has ccds"[Properties] AND alive[prop]) - Gene". NCBI. CCDS Release 20 for Homo sapiens. 2016-09-08. Retrieved 2017-05-28.
  2. Tom Strachan, Andrew Read (2 April 2010). Human Molecular Genetics. Garland Science. p. 45. ISBN   978-1-136-84407-2.
  3. 1 2 Genome Decoration Page, NCBI. Ideogram data for Homo sapience (850 bphs, Assembly GRCh38.p3). Last update 2014-06-03. Retrieved 2017-04-26.
  4. "Home - Homo sapiens". Archived from the original on 2015-04-02. Retrieved 2007-02-07.
  5. "Chromosome 5". Genetics Home Reference. Lister Hill National Center for Biomedical Communications. U.S. National Library of Medicine. December 2014.
  6. Pertea M, Salzberg SL (2010). "Between a chicken and a grape: estimating the number of human genes". Genome Biol. 11 (5): 206. doi: 10.1186/gb-2010-11-5-206 . PMC   2898077 . PMID   20441615.
  7. "Statistics & Downloads for chromosome 5". HUGO Gene Nomenclature Committee. 2017-05-12. Archived from the original on 2017-06-29. Retrieved 2017-05-19.
  8. "Chromosome 5: Chromosome summary - Homo sapiens". Ensembl Release 88. 2017-03-29. Retrieved 2017-05-19.
  9. "Human chromosome 5: entries, gene names and cross-references to MIM". UniProt. 2018-02-28. Retrieved 2018-03-16.
  10. "Search results - 5[CHR] AND "Homo sapiens"[Organism] AND ("genetype protein coding"[Properties] AND alive[prop]) - Gene". NCBI. 2017-05-19. Retrieved 2017-05-20.
  11. "Search results - 5[CHR] AND "Homo sapiens"[Organism] AND ( ("genetype miscrna"[Properties] OR "genetype ncrna"[Properties] OR "genetype rrna"[Properties] OR "genetype trna"[Properties] OR "genetype scrna"[Properties] OR "genetype snrna"[Properties] OR "genetype snorna"[Properties]) NOT "genetype protein coding"[Properties] AND alive[prop]) - Gene". NCBI. 2017-05-19. Retrieved 2017-05-20.
  12. "Search results - 5[CHR] AND "Homo sapiens"[Organism] AND ("genetype pseudo"[Properties] AND alive[prop]) - Gene". NCBI. 2017-05-19. Retrieved 2017-05-20.
  13. Cornish K, Bramble D, Bramble (2002). "Cri du chat syndrome: genotype–phenotype correlations and recommendations for clinical management". Dev Med Child Neurol. 44 (7): 494–7. doi:10.1017/S0012162201002419. PMID   12162388.
  14. Wu Q, Niebuhr E, Yang H, Hansen L (2005). "Determination of the 'critical region' for cat-like cry of Cri-du-chat syndrome and analysis of candidate genes by quantitative PCR". Eur J Hum Genet. 13 (4): 475–85. doi: 10.1038/sj.ejhg.5201345 . PMID   15657623.
  15. Zhang X, Snijders A, Segraves R, Zhang X, Niebuhr A, Albertson D, et al. (2005). "High-resolution mapping of genotype–phenotype relationships in cri du chat syndrome using array comparative genomic hybridization". Am J Hum Genet. 76 (2): 312–26. doi:10.1086/427762. PMC   1196376 . PMID   15635506.
  16. Genome Decoration Page, NCBI. Ideogram data for Homo sapience (400 bphs, Assembly GRCh38.p3). Last update 2014-03-04. Retrieved 2017-04-26.
  17. Genome Decoration Page, NCBI. Ideogram data for Homo sapience (550 bphs, Assembly GRCh38.p3). Last update 2015-08-11. Retrieved 2017-04-26.
  18. International Standing Committee on Human Cytogenetic Nomenclature (2013). ISCN 2013: An International System for Human Cytogenetic Nomenclature (2013). Karger Medical and Scientific Publishers. ISBN   978-3-318-02253-7.
  19. Sethakulvichai W, Manitpornsut S, Wiboonrat M, Lilakiatsakun W, Assawamakin A, Tongsima S (2012). "Estimation of band level resolutions of human chromosome images". 2012 Ninth International Conference on Computer Science and Software Engineering (JCSSE). pp. 276–282. doi:10.1109/JCSSE.2012.6261965. ISBN   978-1-4673-1921-8. S2CID   16666470.
  20. Genome Decoration Page, NCBI. Ideogram data for Homo sapience (850 bphs, Assembly GRCh38.p3). Last update 2014-06-03. Retrieved 2017-04-26.
  21. "p": Short arm; "q": Long arm.
  22. For cytogenetic banding nomenclature, see article locus.
  23. 1 2 These values (ISCN start/stop) are based on the length of bands/ideograms from the ISCN book, An International System for Human Cytogenetic Nomenclature (2013). Arbitrary unit.
  24. gpos: Region which is positively stained by G banding, generally AT-rich and gene poor; gneg: Region which is negatively stained by G banding, generally CG-rich and gene rich; acen Centromere. var: Variable region; stalk: Stalk.

Further reading