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PSC

Gene
Psc
Protein
Polycomb group protein Psc
Organism
Drosophila melanogaster
Length
1601 amino acids
Function
Polycomb group (PcG) protein. PcG proteins act by forming multiprotein complexes, which are required to maintain the transcriptionally repressive state of homeotic genes throughout development. PcG proteins are not required to initiate repression, but to maintain it during later stages of development. Component of the PcG multiprotein PRC1 complex, a complex that acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-118', rendering chromatin heritably changed in its expressibility. Needed to maintain expression patterns of the homeotic selector genes of the Antennapedia (Antp-C) and Bithorax (BX-C) complexes, and hence for the maintenance of segmental determination.
Mass
169.833 kDa
Sequence
MMTPESKAIQPAAATTKQTAEATATTTMAHTQQKSQLSTLAKTTTTTATNKAAKSVVSNANSSGNNSSKKLALSQSQKTTTTTTPPTTTTTTTAAAAAEATTNADKMQKQQQLKQQLFAACSIKVKSENTLATTANAALAAATTTTTTATPALATGKAAKTILENGIKKESTPPAVESVEASSSSSSSSSSSSSSSSSWPTTRRATSEDASSNGGASADEEKSEEDPTAAVAASSTATTTSDLATTSRPRPVLLTAVNPHIICHLCQGYLINATTIVECLHSFCHSCLINHLRKERFCPRCEMVINNAKPNIKSDTTLQAIVYKLVPGLYERELMRKRAFYKDRPEEAALATPEQRGDDTEHLIFSPSDDMSLSLEYAELGELKTDSEPELVDTLRPRYLQCPAMCRVSHLKKFVYDKFEIDAQRFSIDIMYKVKTIVLLDYYTLMDIAYIYTWKRDAPMRFYYRVYESPQPLVKPAPRRVLPLKLEKQERENQEQQLAVEVASSKVEPVSLPEDQKAEASIKVEEQESTREIVKEVIKDVAATPPTETLKLVINRNMLDKREKSHSPQMSSKSSSKSSPCTPVSSPSEPNIKLKIDLSKQNSVTIIDMSDPERREIVKPLKPEKESRSKKKDKDGSPKSSSSSSSSSSGERKRKSPSPLTVPPLTIRTERIMSPSGVSTLSPRVTSGAFSEDPKSEFLKSFALKPIKVKVESPERTLNNRAITPPSPSVQQSASPKSKGNNLDDSILMKPPSCMPPKSIASSKRKSKEPVKAVSKKQKLSPPLPTVDFKIRLPVTNGNSSGTASPKIEKPLMPPPAKPPMLAPRKLQPSAQFAPPPSPIHHHAGVQMSAPGNRTPIAKRYQPILPKASRPNPFANIPNDVNRLLKDAGTEIKSIGGGSVENNSNAAQKPHLYGPKGESKMGPPALPATTPSQGNKNVGKQAGNLPMSAPPNKGNSSNNYLNLALFNSSKCKGKEAPPGCRTPMYTPNSPIYSPSSPQYVPSYNIPTMPTYKYTPKPTPNSGSGNGGSGSYLQNMLGGGNGGSLGGLFPSPPTKSDQNTNPAQGGGGSSSATQSGGNNGIVNNNIYMPNEDAPEKQQVKVKSLLNSCNINIPSSLSITISRDNGDSSSPNNGQHPKHKSPVNNYIEIVKLPDQPQDQVQAAKEAQKRQSPPAAVPGHLAAKLPPPPPSKAIPSPQHLVSRMTPPQLPKVATPPPPSSPRVITPPKTSPPANAAKVTPLKPVLTPTQVDKKTPSPEKRTAAQMGSHSPTASENKSPKGGPAGVANSTGGAQNGDPAAKKFRPILPRQNGMPELAPKLPTLAPFVGFNPLQNPAAGKKVPPSKKSPNAGAAAHQSGQQKLVNGGQSQPAQQKTSPPAQKNQQQVKKVSKNPTPPPPSLPAVGKMMPHPVMHSQNAPLSIASSASAAAVASGQLDLSNFLKENLRRVHAAQAAQAAQVAAAANQSNMMYNLAQMGHMTPAMYNYQQAYFREQLSRMQRVGNEVFNDYLQKLKTAAATGGGGPVEGELKPMLPTVTLPSPGATPPAASPKTSPLPAGKLTAAATAPQTKGNSSSGAANARQQTAATGNNGATVPAASLPPATKSK

Gene
PSC
Protein
Acidic endochitinase Pun g 14, amyloplastic
Organism
Punica granatum
Length
299 amino acids
Function
Hydrolyzes chitin. Probable calcium storage protein of the seeds. Binds calcium ions with high capacity and low affinity. Involved in seed germination.
Similarity
Belongs to the glycosyl hydrolase 18 family. Chitinase class III subfamily.
Mass
31.747 kDa
Sequence
MAKTLPFSRALLLSLSILLVARAISAGDIAIYWGQNGGEGTLASTCDTGRYAYVIVSFVTTFGNFRAPVVNLAGHCDPAAGTCTGLSDEIRSCQGKDIKVLMSIGGGAGDYSLVSEADADNFADYLWNNFLGGQSSSRPLGDAVLDGIDFDIELGTTTFYDTLARALSSRSTQAAKVYLTAAPQCPHPDSHLDAALNTGLFDNVWIQFYNNPLAQCQYSSGNTNDILSSWNTWTSSTTAGKIFLGLPAAPEAAGSGYIPPDVLTGQILPQIKTSAKYGGVMLYSKFYDTTYSTTIKDQV