dbPAF Protein Information


Tag Content
dbPAF ID dbPAF-0040835
Uniprot Accession Q9USN8; RQC2_SCHPO; O94551;
Genbank Protein ID NP_588145.2;
Genbank Nucleotide ID NM_001023135.2;
Protein Name Ribosome quality control complex subunit 2
Protein Synonyms/Alias Microtubule regulator protein 1;
Gene Name mtr1
Gene Synonyms/Alias SPCC132.01c;SPCC1322.17c;
Organism Schizosaccharomyces pombe (strain 972 / ATCC 24843)(Fission yeast)
NCBI Taxa ID 284812
Functional Description
(View all)
Component of the ribosome quality control complex (RQC), a ribosome-associated complex that mediates ubiquitination and extraction of incompletely synthesized nascent chains for proteasomal degradation. Mtr1/rqc2 is responsible for selective recognition of stalled 60S subunits by recognizing an exposed, nascent chain-conjugated tRNA moiety. Mtr1/rqc2 is important for the stable association of rkr1/ltn1 to the complex. Mtr1/rqc2 recruits alanine- and threonine-charged tRNA to the A site and directs the elongation of stalled nascent chains independently of mRNA or 40S subunits, leading to non-templated C-terminal Ala and Thr extensions (CAT tails). CAT tails induce a heat shock response.
Phosphorylation Sites
dbPAF PTMs: 1
PositionPeptidesSourceReferences ( PMIDs )
478SDDDLDDSDDDNKVKdbPTM 3.0;UniProt18257517; 16381945; 23193290
Sequence
(Fasta)
MKQRFSALDI AAIAAELREQ VVGCRLNNFY DLNARTFLLK FGKQDAKYSI VIESGFRAHL 60
TKFDRENAPL SGFVTKLRKH IKSRRLTGVS QLGTDRVLVF TFGGGANDQD PDWTYYLVCE 120
FFAAGNVLLL DGHYKILSLL RVVTFDKDQV YAVGQKYNLD KNNLVNDNKS QSTIPHMTAE 180
RLNILLDEIS TAYASPTSIN EPLPDQQLSS STKPIKVPKP VSLRKALTIR LGEYGNALIE 240
HCLRRSKLDP LFPACQLCAD ETKKNDLLAA FQEADSILAA VNKPPVKGYI FSLEQALTNA 300
ADPQHPEECT TLYEDFHPFQ PLQLVQANRK CMEFPTYNEC VDEFFSSIEA QKLKKRAHDR 360
LATAERRLES AKEDQARKLQ SLQDAQATCA LRAQAIEMNP ELVEAIISYI NSLLNQGMDW 420
LDIEKLIQSQ KRRSPVAAAI QIPLKLIKNA VTVFLPNPES VDNSDESSET SDDDLDDSDD 480
DNKVKEGKVS SKFIAVELDL SLGAFANARK QYELRREALI KETKTAEAAS KALKSTQRKI 540
EQDLKRSTTA DTQRILLGRK TFFFEKFHWF ISSEGYLVLG GRDAQQNELL FQKYCNTGDI 600
FVCADLPKSS IIIVKNKNPH DPIPPNTLQQ AGSLALASSK AWDSKTVISA WWVRIDEVSK 660
LAPTGEILPT GSFAIRAKKN YLPPTVLIMG YGILWQLDEK SSERRKARRL EMEVVETQGK 720
VSELKMEGTS VTSEDNIQDV VSEVSYNEDT NNQSTPDTTG SDIHIVSEKR GKKGSKVITA 780
KKVSAKERRE ARRARRQTAL EESLKAPISI EDATDPQTIL AILKQKKAKK KHAAREMEIS 840
SQIPSNDSSN VQTPTAESEI EEDGVSEPIS AEVIEDQSRN SEAENEKGLS TEQRDEKKHA 900
KVESFQRQEM PRSLFEEIFF AIDSLTPNPQ QQDTVINAVP TFAPYNAMTK FNQKVKVMPG 960
TGKVGKAARE SIAYFMKKLP KSSKEAAYLE NLKDGEIVAP ISVSRLKMVF GSSGNTKKSK 1020
K 1022
Keyword

KW-0175--Coiled coil
KW-0181--Complete proteome
KW-0963--Cytoplasm
KW-0597--Phosphoprotein
KW-1185--Reference proteome

Interpro

IPR021846--DUF3441
IPR008532--DUF814

PROSITE
Pfam

PF11923--DUF3441
PF05670--DUF814

Gene Ontology

GO:0005829--C:cytosol
GO:1990112--C:RQC complex
GO:1990116--P:ribosome-associated ubiquitin-dependent protein catabolic process