NOVA Online | Cracking the Code of Life

On/off switch | Start codon | Stop codon | Exons | Introns | Hitchhiking code | Ancient code | Sites of variation | A gene Find introns Location: chromosome 1: bases 215847819-215860406 (reverse complemented) located in 1q31.1


Explore a Stretch of Code Select any of the following terms to find out more about it and to reveal its location (highlighted in blue) in the code below.

On/off switch | Start codon | Stop codon | Exons | Introns | Hitchhiking code | Ancient code | Sites of variation | A gene

Introns
An intron is a section of DNA within a gene that doesn't actually code for anything. Introns and exons are interspersed throughout a gene, although there are some human genes without any introns. When a gene is copied into mRNA, both introns and exons are faithfully copied, but all the introns are cut out before the final mRNA transcript is made. Less complex organisms such as yeast tend not to have introns. The function of introns, if any, is unknown, although geneticists now wonder whether the splicing together of exons required by the presence of introns allows the human genome to generate more complexity than its mere 30,000 genes would suggest.

Find introns

Location: chromosome 1: bases 215847819-215860406 (reverse complemented) located in 1q31.1

taaacttcatggcataaccttgccaaagtatactaagaataaccctgaca
caaagctcttttttcagccaacatgccatgaaagaaagaagacaaggggt
gatctccactctctaagtgaaccactaaacccaccaaagaagaaacgagg
gaaatagaaagaggacccttgcctgagataatggatctgtatgtatgagt
agtagaaccctgctcaaagtacaaggaagggaaaaaaaagttagtttatt
tggaattttggacattaagagtctttattgttcattttcttttaactcac
atgaatggcttatcacttcaattaataaatatttcatttcttttcaacat
attcatgaaacaaatctgaaatgaacagtgcaacatgtgaatgtttagaa
cattataaaattaaacacaaaatctgtctggcaatcttcctagcatctta
ggaaaaaagttgacaaaatttcaagcagcagaagggggcagtaaaactca
acagaaagctctggaagatttttaagattcttccttattttcttttcatg
tagattatttcccaacaaatttcagacgctaatagaaattttgtacaaca
gatccatatatttgcctaaaatagacacagaaacattgaatatatgcaaa
catgagagctataagttttacatgatcaaaccttttttttatggtacaca
atagtcacagtacttttccatataaaacaggtttagtggtcttaatttag
tttggcacatttaatacactcccatgaccagcatcccaaatgtacctatc
cgttttattttattgtctcagaattgtcagttatttaataaattatgtaa
cttttttccttatgctcagatttgcacttctttctaaaactctgcccatc
cttaaagtcccagattctccttgaacttttttttttgactttccaagtac
atggaactcttcactctatcctgctatataagtgacagaatttccactat
gggatagatggagttcaattcctttgagtttaaaataatctaaatataat
tattccttatgccctgtttttccctcacttttgtatccaaatctcttttc
agacaacagaacaattaatgtctgataaggaagacaatgatgatgatcac
ttcaaaatgaattcaggattgtaatgtaaaattttagtactctctcacag
tatggattctaacatggcttctaacccaaactaacattagtagctctaac
tataaacttcaaatttcagtagatgcaacctactcctttaaaatgaaaca
gaagattgaaattattaaattatcaaaaagaaaatgatccacgctcttag
ttgaaatttcatgtaagattccatgcaataaataggagtgccataaatgg
aatgatgaaatatgactagaggaggagaaaggcttcctagatgagatgga
attttagtcatccgtgtctcatgaagaatcagatgtgtacactaagcaaa
acagttaaaaaaaaaacctccaagtgagtctcttatttatttttttctta
taagacttctacaaattgaggtacctggtgtagttttatttcaggtttta
tgctgtcattttcctgtaatgctaaggacttaggacataactgaattttc
tattttccacttcttttctggtgtgtgtgtatatatatatgtatatatac
acacacacatatacatatatatattttttagtatctcaccctcacatgct
cctccctgagcactacccatgatagatgttaaacaaaagcaaagatgaaa
ttccaactgtcaaaatctcccttccatctaattaattcctcatccaacta
tgttccaaaacgagaatagaaaattagccccaataagcccaggcaactga
aaagtaaatgctatgttgtactttgatccatggtcacaactcataatctt
ggaaaagtggacagaaaagacaaaagagtgaactttaaaactcgaattta
ttttaccagtatctcctatgaagggctagtaaccaaaataatccacgcat
cagggagagaaatgccttaaggcatacgttttggacatttagcgtccctg
caaattctggccatcgccgcttcctttgtccatcagaaggcaggaaactt
tatattggtgacccgtggagctcacattaactatttacagggtaactgct
taggaccagtattatgaggagaatttacctttcccgcctctctttccaag
aaacaaggagggggtgaaggtacggagaacagtatttcttctgttgaaag
caacttagctacaaagataaattacagctatgtacactgaaggtagctat
ttcattccacaaaataagagttttttaaaaagctatgtatgtatgtgctg
catatagagcagatatacagcctattaagcgtcgtcactaaaacataaaa
catgtcagcctttcttaaccttactcgccccagtctgtcccgacgtgact
tcctcgaccctctaaagacgtacagaccagacacggcggcggcggcggga
gaggggattccctgcgcccccggacctcagggccgctcagattcctggag
aggaagccaagtgtccttctgccctcccccggtatcccatccaaggcgat
cagtccagaactggctctcggaagcgctcgggcaaagactgcgaagaaga
aaagacatctggcggaaacctgtgcgcctggggcggtggaactcggggag
gagagggagggatcagacaggagagtggggactaccccctctgctcccaa
attggggcagcttcctgggtttccgattttctcatttccgtgggtaaaaa
accctgcccccaccgggcttacgcaatttttttaaggggagaggagggaa
aaatttgtggggggtacgaaaaggcggaaagaaacagtcatttcgtcaca
tgggcttggttttcagtcttataaaaaggaaggttctctcggttagcgac
caattgtcatacgacttgcagtgagcgtcaggagcacgtccaggaactcc
tcagcagcgcctccttcagctccacagccagacgccctcagacagcaaag
cctacccccgcgccgcgccctgcccgccgctgcgatgctcgcccgcgccc
tgctgctgtgcgcggtcctggcgctcagccatacaggtgagtacctggcg
ccgcgcaccggggactccggttccacgcacccgggcagagtttccgctct
gacctcctgggtctatcccagtactccgacttctctccgaatagagaagc
tacgtgacttgggaaagagcttggaccgctagagttcgaaagaactccgt
ggatattccagctttcccacaagcactgatcattatgagccagttactta
accgatctgagacactctcacctcctaaatagggatagatgatactaatt
tgcaggttgtcattatgataagacaggatctgatcaatatatgtgaattg
tttatatttggaacctttttattgagtggaagaagttgttttaaatattc
tagtcagttctttcctgctcccaggaaagcccggattatgttttaagata
agcaaaatgtcttaaaagtaagctgttttactttgaatttttccctaaat
gttgattagtgtactagatccattttaatttggaaagtgaagtgctactt
atttgaacttcttaaaaatgctaattttaacatctaaagagttaactaag
aaaagcttagtaacatgatgtaccaagttgaatatgctgttatccttatt
tagaatagaaaattggtatttctacgttttatccattctaaggcaggtta
aaaaattgtatttccatgactacctatatatttcttgaatttattattgt
aaagttgattcatagtcaaacaattaaatgtttaaattaagattaagaca
ctagagaatgatttatttgctgtcctttaattgcag
caaatccttgctgt
tcccacccatgtcaaaaccgaggtgtatgtatgagtgtgggatttgacca
gtataagtgcgattgtacccggacaggattctatggagaaaactgctcaa
cacgtaagtttgtcctttggttgcctcattaggagtggggctggatacag
ttatcattgtatagatttgtgtcttataatgagtcccattaatttctccc
tccctttcttcgtcttcttgcag
cggaatttttgacaagaataaaattat
ttctgaaacccactccaaacacagtgcactacatacttacccacttcaag
ggattttggaacgttgtgaataacattcccttccttcgaaatgcaattat
gagttatgtgttgacatgtaagtacaagtgtctttctaaggtttttagcc
ttctcaaagaaaaatatgctttataatactgtaagcctaatctaaaaaca
tatttccaagcttatcaaaaagactttaagatagcttttaagtttgcctt
ccatcttaatcgccaaaaatattgacatttagtcccatccagtttataca
gtctgctcacaactctgtatacctcttctaacctttactgtttggtcagt
ttgtggaggtagcatggtccagctgtttattgaatgcccatgggccacag
aattgttctgaacatgtagcacccattaaaataaatttggatttggatca
gcaagaaaataactttccatgattctaaagtgggtgccatactcagccat
tcctttcataggcctcttggatagtgagcagatggctacctgaaaaatca
atattgccagattataatgtgcagagtatatgtattttattaaagatgta
tttcaagtggccattagactataaagtgtagttgtttaaaaatagatttt
ttttattttggagttacattcaacctcaggtgccactttccacattttac
aataaaaataatggttgatttacttaacaaatgagaataaataaaacatt
tttttctttgaaaatttcag
ccagatcacatttgattgacagtccaccaa
cttacaatgctgactatggctacaaaagctgggaagccttctctaacctc
tcctattatactagagcccttcctcctgtgcctgatgattgcccgactcc
cttgggtgtcaaaggtgagtaagaagaatccattagagatgtattaacta
taagacgggctgcattgctgccaaaaaaaaaaattgaccttagactacca
tttatttattaacaaaagcagtttttacttttagcatggttatctatggg
tattttttaaagtatgagtctatataaactattatgtaaaagcaaatgag
cgtcttggtataatgtcttaatattttcaaattatttctttagaaatgaa
ataattctaattaaaatagataaaatcattcagtaagaagttgttccacc
atatcttagaactgttgtttatattatgatcctattcacaattgtaattc
tcatataaatgaagaattcttggtagattgacagtcaccatctcctttct
tgaatacatagatggattcttaccttagctttctcatttttcag
gtaaaa
agcagcttcctgattcaaatgagattgtggaaaaattgcttctaagaaga
aagttcatccctgatccccagggctcaaacatgatgtttgcattctttgc
ccagcacttcacgcatcagtttttcaagacagatcataagcgagggccag
ctttcaccaacgggctgggccatggggtaagatagagttaatatcttaga
gttagtaaaattataccaaatcatagtcaagggctaacattaaaggagat
atacagatagatagatccaaataacttatccactttttttaaaaagaagt
cttatctataaaaaccttaaaggaattttccatttacttcactggtctag
taaaattatacacacacacagacatgcacacacatatataaacattcaca
cacatacatatgtacaggtattgttatttgtaatttgacccttgtatttt
ttagtttaaaatgttagtactgcaaaatgttatgtcctcaaaaacacatt
gtaccatgattatgccgctttcaatattgtaaagtgaggtttttgccgca
ttattattttttggatttcaatagcatagcttcaagttattcgtaagaat
tttttataaataatacatttttatacttttttataattaccatatcatca
tagtgaagtatataatatatatgatataagctcaatatagtatattaatt
ccgttaaacacaaagacatatcagtttgtagctttggtggataaacaaat
taatttagcaattcatggctatgaaaaatgtatattttatttaaaaattt
taaagaaagctaaatgatcaaattatttaatgatgaattatatgatagac
actttatataagaaaaacttcaacagcaacaaattaaaattttttcatca
ttttctag
gtggacttaaatcatatttacggtgaaactctggctagacag
cgtaaactgcgccttttcaaggatggaaaaatgaaatatcaggtatgctt
cctttgactattaagacttagttattaccgcttatacccatattttaaaa
tccctaaaaatgtgttccttaactttttaactgatgtttatttatttatt
tatttttttag
ataattgatggagagatgtatcctcccacagtcaaagat
actcaggcagagatgatctaccctcctcaagtccctgagcatctacggtt
tgctgtggggcaggaggtctttggtctggtgcctggtctgatgatgtatg
ccacaatctggctgcgggaacacaacagagtatgcgatgtgcttaaacag
gagcatcctgaatggggtgatgagcagttgttccagacaagcaggctaat
actgataggtaaacaagaaaatgatttatataaaaccctcttccccaggg
aaaattagtgtgctatctttgttatgttttgagtaaatgacaagatgtgg
taaatgaaaactcacacattctatatacattaaatatgtaagcatgactg
ataaaatagctatcttttgatactgacaaggaagaaaacagaaatgaagg
aatagcaaattttaaaaattgcattccagttgcttgaaagcttgtgatca
gatgcaataaatgtttttattatttattttgtgcaaatag
gagagactat
taagattgtgattgaagattatgtgcaacacttgagtggctatcacttca
aactgaaatttgacccagaactacttttcaacaaacaattccagtaccaa
aatcgtattgctgctgaatttaacaccctctatcactggcatccccttct
gcctgacacctttcaaattcatgaccagaaatacaactatcaacagttta
tctacaacaactctatattgctggaacatggaattacccagtttgttgaa
tcattcaccaggcaaattgctggcagggtaagcattattattgaaaacca
aaacaaaagactagtcagtaactttagaatttctgccacggaaattattt
ttcttaaacttactaaaagagtagttagttatattgctagtaaaattatt
ttattgatataagaagcctaactttgtttgaaaagtctaaacttttagtc
tagtctacagttgtcagacaaatagcaaattgtacccctaccttaaaaat
attttcaaaaagtatctataatcttataggaataaatattttaggcttga
atactagtgttatttttgaaatgtaaaaaggcaaattagttctaggctgg
tgtcccattgaattttaagcagagctcctgttgaaatgtaggtaagcatc
tttccagcaaataaaaattgtctccgctgggagtttcagttttacctgat
ttgtacctaaggcaagctgaatacaaacagtaaatatgcctaaaattctt
gttttacaactaattttactttccacag
gttgctggtggtaggaatgttc
cacccgcagtacagaaagtatcacaggcttccattgaccagagcaggcag
atgaaataccagtcttttaatgagtaccgcaaacgctttatgctgaagcc
ctatgaatcatttgaagaacttacaggtaagaaacagtttctaaacttct
tcgttttttgtttgtttgtttgtttttgttgtttttggttttcttttcga
gatggagccgccctctgtcacccaggctggagtgcagtggcgccatctcg
gctcactgcaacctccgcctcctgggttcaagcaattctcctgcctcaac
ttcctgagtagctgggactacaggctcacgtcgcacgcatggataatttt
ttgtattttcagtatagacggggtttcaccgtgttagccaggctggtctc
aaactcctgacctagtgatccgccggcttcggcctcccgaagtgctggga
ttacaggcgtgagccaccgcgcctggcccctaaacttcttaaaagaatca
ggggtcaaatggaaacagagaagttggcagcaaattgagcaaaagaatca
aactgttttttattttgtgaagtttgacattggttgtatctctgtcttca
tcgccttcacag
gagaaaaggaaatgtctgcagagttggaagcactctat
ggtgacatcgatgctgtggagctgtatcctgcccttctggtagaaaagcc
tcggccagatgccatctttggtgaaaccatggtagaagttggagcaccat
tctccttgaaaggacttatgggtaatgttatatgttctcctgcctactgg
aagccaagcacttttggtggagaagtgggttttcaaatcatcaacactgc
ctcaattcagtctctcatctgcaataacgtgaagggctgtccctttactt
cattcagtgttccagatccagagctcattaaaacagtcaccatcaatgca
agttcttcccgctccggactagatgatatcaatcccacagtactactaaa
agaacgttcgactgaactgtagaagtctaatgatcatatttatttattta
tatgaaccatgtctattaatttaattatttaataatatttatattaaact
ccttatgttacttaacatcttctgtaacagaagtcagtactcctgttgcg
gagaaaggagtcatacttgtgaagacttttatgtcactactctaaagatt
ttgctgttgctgttaagtttggaaaacagtttttattctgttttataaac
cagagagaaatgagttttgacgtctttttacttgaatttcaacttatatt
ataagaacgaaagtaaagatgtttgaatacttaaacactgtcacaagatg
gcaaaatgctgaaagtttttacactgtcgatgtttccaatgcatcttcca
tgatgcattagaagtaactaatgtttgaaattttaaagtacttttggtta
tttttctgtcatcaaacaaaaacaggtatcagtgcattattaaatgaata
tttaaattagacattaccagtaatttcatgtctactttttaaaatcagca
atgaaacaataatttgaaatttctaaattcatagggtagaatcacctgta
aaagcttgtttgatttcttaaagttattaaacttgtacatataccaaaaa
gaagctgtcttggatttaaatctgtaaaatcagtagaaattttactacaa
ttgcttgttaaaatattttataagtgatgttcctttttcaccaagagtat
aaacctttttagtgtgactgttaaaacttccttttaaatcaaaatgccaa
atttattaaggtggtggagccactgcagtgttatcttaaaataagaatat
tttgttgagatattccagaatttgtttatatggctggtaacatgtaaaat
ctatatcagcaaaagggtctacctttaaaataagcaataacaaagaagaa
aaccaaattattgttcaaatttaggtttaaacttttgaagcaaacttttt
tttatccttgtgcactgcaggcctggtactcagattttgctatgaggtta
atgaagtaccaagctgtgcttgaataatgatatgttttctcagattttct
gttgtacagtttaatttagcagtccatatcacattgcaaaagtagcaatg
acctcataaaatacctcttcaaaatgcttaaattcatttcacacattaat
tttatctcagtcttgaagccaattcagtaggtgcattggaatcaagcctg
gctacctgcatgctgttccttttcttttcttcttttagccattttgctaa
gagacacagtcttctcatcacttcgtttctcctattttgttttactagtt
ttaagatcagagttcactttctttggactctgcctatattttcttacctg
aacttttgcaagttttcaggtaaacctcagctcaggactgctatttagct
cctcttaagaagattaaaagagaaaaaaaaaggcccttttaaaaatagta
tacacttattttaagtgaaaagcagagaattttatttatagctaatttta
gctatctgtaaccaagatggatgcaaagaggctagtgcctcagagagaac
tgtacggggtttgtgactggaaaaagttacgttcccattctaattaatgc
cctttcttatttaaaaacaaaaccaaatgatatctaagtagttctcagca
ataataataatgacgataatacttcttttccacatctcattgtcactgac
atttaatggtactgtatattacttaatttattgaagattattatttatgt
cttattaggacactatggttataaactgtgtttaagcctacaatcattga
tttttttttgttatgtcacaatcagtatatcttctttggggttacctctc
tgaatattatgtaaacaatccaaagaaatgattgtattaagatttgtgaa
taaatttttagaaatctgattggcatattgagatatttaaggttgaatgt
ttgtccttaggataggcctatgtgctagcccacaaagaatattgtctcat
tagcctgaatgtgccataagactgaccttttaaaatgttttgagggatct
gtggatgcttcgttaatttgttcagccacaatttattgagaaaatattct
gtgtcaagcactgtgggttttaatatttttaaatcaaacgctgattacag
ataatagtatttatataaataattgaaaaaaattttcttttgggaagagg
gagaaaatgaaataaatatcattaaagataactcaggagaatcttcttta
caattttacgtttagaatgtttaaggttaagaaagaaatagtcaatatgc
ttgtataaaacactgttcactgttttttttaaaaaaaaaacttgatttgt
tattaacattgatctgctgacaaaacctgggaatttgggttgtgtatgcg
aatgtttcagtgcctcagacaaatgtgtatttaacttatgtaaaagataa
gtctggaaataaatgtctgtttatttttgtactatttataaaattgacag
atcttttctgaagataaactttgattgtttctatacatctttgtcatatg
acataagatttctctgaagcattactcttaaaccattatcttgcattctc
ctacctattcaaaactaggactggcccttcatgaaatggttttgccctca
attatatagaggcttcctagagtcactatttaaatctcataatccttatt
cactgcgacactgtgttggaaaatgtctagtttgtgtatctttacagaag
atggcaaacaagcttattttcattgcctagtctagaagaagaagaaaaaa
atacacaataaggcaaagaataagacatatattatgaagggggcacaaag
ttaagaagttcaaagaggaggaaattatacaaagttgggcaaatcattga
tgcaaaagctcataggcttttgttgtacctctatccttgacatcttggta
atttcaatatctacatggaccacatatttagcatcttccctggcctctcc
tctttggccttctccattccagggatggcctcttccaccatatttcctga
aatcatacatatcttgatatcattatgattaattacagcaccactttcaa
aatcttgattccaagcatcttccagctcacctattttattgcttacactc
taacatctaactctcagtctcactgaacctaccgatccaccaacctcatc
acttcactatttatcacctgttttatctttccatttacttccatatgcat
ctagctcagattctattgtccatcattctaatcattcccctctgctctgt
atattctccctctactgtgctgaattgacacaagttgattaaatccagcc
attctcctaatctgttttttatttggcttctcagtagcattcaacacaaa
tagctataatctctttactgaaagaacccctgccccaaccttggcttcat
ggtttgatactctcctggtctttctctacctttctcaga

On/off switch | Start codon | Stop codon | Exons | Introns | Hitchhiking code | Ancient code | Sites of variation | A gene

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© | Updated April 2001

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