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StatusReference proteome
Proteinsi <p>Number of protein entries associated with this proteome: UniProtKB entries for regular proteomes or UniParc entries for redundant proteomes (<a href="/help/proteome%5Fredundancy">more...</a>)</p> 32,824
Gene counti <p>This is the total number of unique genes found in the proteome set, algorithmically computed. For each gene, a single representative protein sequence is chosen from the proteome. Where possible, reviewed (Swiss-Prot) protein sequences are chosen as the representatives.</p> - Download one protein sequence per gene (FASTA)
Proteome IDi <p>The proteome identifier (UPID) is the unique identifier assigned to the set of proteins that constitute the <a href="">proteome</a>. It consists of the characters 'UP' followed by 9 digits, is stable across releases and can therefore be used to cite a UniProt proteome.<p><a href='/help/proteome_id' target='_top'>More...</a></p>UP000002279
Taxonomy9258 - Ornithorhynchus anatinus
Genome assembly and annotationi <p>Identifier for the genome assembly (<a href="">more...</a>)</p> GCA_004115215.2 from Ensembl full
Buscoi <p>The Benchmarking Universal Single-Copy Ortholog (BUSCO) assessment tool is used, for eukaryotic and bacterial proteomes, to provide quantitative measures of UniProt proteome data completeness in terms of expected gene content. BUSCO scores include percentages of complete (C) single-copy (S) genes, complete (C) duplicated (D) genes, fragmented (F) and missing (M) genes, as well as the total number of orthologous clusters (n) used in the BUSCO assessment, and the name of the taxonomic lineage dataset used.</p> C:85.5%[S:50.4%,D:35.1%],F:2.7%,M:11.8%,n:9226 mammalia_odb10
Completenessi <p>Complete Proteome Detector (CPD) is an algorithm which employs statistical evaluation of the completeness and quality of proteomes in UniProt, by looking at the sizes of taxonomically close proteomes. Possible values are 'Standard', 'Close to Standard' and 'Outlier'.</p> Standard

The platypus and the echidna are the only extant examples of monotremes or egg-laying mammals. The platypus is very unusual in appearance, covered in thick brown waterproof fur similar to a mole, with a duck-like beak, beaver tail and otter feet. It weighs between 0.7-2.4kg and has an average length of 50cm. It uses its beak for electro-location of prey as it hunts for worms, larvae and shrimps on the riverbed, mostly at dusk/dawn and night. Its vision is thus, relatively poor. On land it lives in a burrow along the riverbank. Platypuses are unique to Australia although fossil relatives have been found in Argentina. Evolutionary studies suggest that monotremes diverged from the mammal line prior to placentals and marsupials.

The platypus has 10 pairs of sex (XY) chromosomes, and sex determination has significant features in common with the system of ZZ/ZW chromosomes found in birds. The platypus lays 1-3 reptile-like eggs which take around 10 days to hatch after developing in utero for about 28 days. The young suckle milk from grooves on the mother's abdomen as they have no teats. Platypuses represent an evolutionary link between mammals and birds and reptiles.

For the Ensembl build gene models were generated using sets of potential orthologs to genes from other mammalian species as well as chicken. The genome contains 1.9Gb with 21,698 protein-coding genes and 28,002 predicted transcripts.

Componentsi <p>Genomic components encoding the proteome</p>

Component nameGenome Accession(s)
Component representationProteins
Chromosome 12160
Chromosome 22416
Chromosome 32259
Chromosome 41726
Chromosome 52010
Chromosome 6965
Chromosome 71458
Chromosome 101329
Chromosome 111663
Chromosome 12770
Chromosome 141063
Chromosome 15574
Chromosome 171051
Chromosome 18843
Chromosome 20693
Chromosome X11991
Chromosome X2925
Chromosome X3513
Chromosome X51526


  1. "The mitochondrial genome of a monotreme--the platypus (Ornithorhynchus anatinus)."
    Janke A., Gemmell N.J., Feldmaier-Fuchs G., von Haeseler A., Paabo S.
    J. Mol. Evol. 42:153-159(1996) [PubMed] [Europe PMC] [Abstract]
  2. "Genome analysis of the platypus reveals unique signatures of evolution."
    Warren W.C., Hillier L.W., Marshall Graves J.A., Birney E., Ponting C.P., Grutzner F., Belov K., Miller W., Clarke L., Chinwalla A.T., Yang S.P., Heger A., Locke D.P., Miethke P., Waters P.D., Veyrunes F., Fulton L., Fulton B.
    Wilson R.K.
    Nature 453:175-183(2008) [PubMed] [Europe PMC] [Abstract]
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