“Candidate division SR1 and gracilibacteria code”的意思、由来-开放百科全书

词条 Candidate division SR1 and gracilibacteria code

释义

The code
Difference from the standard code
Initiation codons
Systematic range
See also
References
External links

{{Short description|An alternative genetic code found in the genome of some bacteria}}

The candidate division SR1 and gracilibacteria code (translation table 25) is used in two groups of (so far) uncultivated bacteria found in marine and fresh-water environments and in the intestines and oral cavities of mammals among others^[1]. The difference to the standard and the bacterial code is that UGA represents an additional glycine codon and does not code for termination.

The code

AAs = FFLLSSSSYY**CCGWLLLLPPPPHHQQRRRRIIIMTTTTNNKKSSRRVVVVAAAADDEEGGGG

Starts = ---M-------------------------------M---------------M------------

Base1 = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG

Base2 = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG

Base3 = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG

Bases: adenine (A), cytosine (C), guanine (G) and thymine (T) or uracil (U).

Amino acids: Alanine (Ala, A), Arginine (Arg, R), Asparagine (Asn, N), Aspartic acid (Asp, D), Cysteine (Cys, C), Glutamic acid (Glu, E), Glutamine (Gln, Q), Glycine (Gly, G), Histidine (His, H), Isoleucine (Ile, I), Leucine (Leu, L), Lysine (Lys, K), Methionine (Met, M), Phenylalanine (Phe, F), Proline (Pro, P), Serine (Ser, S), Threonine (Thr, T), Tryptophan (Trp, W), Tyrosine (Tyr, Y), and Valine (Val, V).

Difference from the standard code

DNA codon	RNA codon	This code (25)		Standard code (1)
`TGA`	`UGA`	`Gly` `(G)`		`STOP = Ter` `(*)`

Initiation codons

AUG, GUG, UUG

Systematic range

Candidate Division SR1
Gracilibacteria

References

{{NLM content}}^[2]

1. ^{{Cite journal|last=Davis|first=James P.|last2=Youssef|first2=Noha H.|last3=Elshahed|first3=Mostafa S.|date=June 2009|title=Assessment of the diversity, abundance, and ecological distribution of members of candidate division SR1 reveals a high level of phylogenetic diversity but limited morphotypic diversity|journal=Applied and Environmental Microbiology|volume=75|issue=12|pages=4139–4148|doi=10.1128/AEM.00137-09|issn=1098-5336|pmc=2698373|pmid=19395567}}
2. ^{{cite web | first1 = Andrzej | last1 = Elzanowski | first2 = Jim | last2 = Ostell | first3 = Detlef | last3 = Leipe | first4 = Vladimir | last4 = Soussov | name-list-format = vanc |url=https://www.ncbi.nlm.nih.gov/Taxonomy/taxonomyhome.html/index.cgi?chapter=tgencodes#thetop |title= The Genetic Codes|access-date=19 March 2016 | work = Taxonomy browser | publisher = National Center for Biotechnology Information (NCBI), U.S. National Library of Medicine }}

}}

External links

3 : Molecular genetics|Gene expression|Protein biosynthesis

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