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Overview

Uniprot IDQ6L8Q7
Protein Name2',5'-phosphodiesterase 12
Gene NamePDE12
OrganismHomo sapiens

Kla Sites from experimental identification

Position Flanking peptide
88 NALKGHAKAAAAKKS
97 AAAKKSRKSRPNASG

Function

Enzyme that cleaves 2',5'-phosphodiester bond linking adenosines of the 5'-triphosphorylated oligoadenylates, triphosphorylated oligoadenylates referred as 2-5A modulates the 2-5A system. Degrades triphosphorylated 2-5A to produce AMP and ATP (PubMed:26055709). Also cleaves 3',5'-phosphodiester bond of oligoadenylates (PubMed:21666256, PubMed:26055709, PubMed:30389976). Plays a role as a negative regulator of the 2-5A system that is one of the major pathways for antiviral and antitumor functions induced by interferons (IFNs). Suppression of this enzyme increases cellular 2-5A levels and decreases viral replication in cultured small-airway epithelial cells and Hela cells (PubMed:26055709)

Protein Sequence

10 MWRLPGARAA 20 LRVIRTAVEK 30 LSRAEAGSQT 40 AAGAMERAVV 50 RCVPSEPKLS 60 LSFALADGSH 70 KNMQRDQSEP 80 LGRVLSRIAT 90 NALKGHAKAA 100 AAKKSRKSRP 110 NASGGAACSG 120 PGPEPAVFCE 130 PVVKLYYREE 140 AVAEDVLNVD 150 AWQDGAVLQI 160 GDVKYKVERN 170 PPAFTELQLP 180 RYIMAGFPVC 190 PKLSLEFGDP 200 ASSLFRWYKE 210 AKPGAAEPEV 220 GVPSSLSPSS 230 PSSSWTETDV 240 EERVYTPSNA 250 DIGLRLKLHC 260 TPGDGQRFGH 270 SRELESVCVV 280 EAGPGTCTFD 290 HRHLYTKKVT 300 EDALIRTVSY 310 NILADTYAQT 320 EFSRTVLYPY 330 CAPYALELDY 340 RQNLIQKELT 350 GYNADVICLQ 360 EVDRAVFSDS 370 LVPALEAFGL 380 EGVFRIKQHE 390 GLATFYRKSK 400 FSLLSQHDIS 410 FYEALESDPL 420 HKELLEKLVL 430 YPSAQEKVLQ 440 RSSVLQVSVL 450 QSTKDSSKRI 460 CVANTHLYWH 470 PKGGYIRLIQ 480 MAVALAHIRH 490 VSCDLYPGIP 500 VIFCGDFNST 510 PSTGMYHFVI 520 NGSIPEDHED 530 WASNGEEERC 540 NMSLTHFFKL 550 KSACGEPAYT 560 NYVGGFHGCL 570 DYIFIDLNAL 580 EVEQVIPLPS 590 HEEVTTHQAL 600 PSVSHPSDHI ALVCDLKWK

Gene Ontology

Classification GO ID Description
Biological Process GO:0035457 cellular response to interferon-alpha
Cellular Component GO:0005829 cytosol
Cellular Component GO:0005759 mitochondrial matrix
Cellular Component GO:0005739 mitochondrion
Molecular Function GO:0000175 3'-5'-RNA exonuclease activity
Molecular Function GO:0004527 exonuclease activity
Molecular Function GO:0046872 metal ion binding
Molecular Function GO:0004535 poly(A)-specific ribonuclease activity
Biological Process GO:0140374 antiviral innate immune response
Biological Process GO:0071359 cellular response to dsRNA
Biological Process GO:0071346 cellular response to type II interferon
Biological Process GO:0051607 defense response to virus
Biological Process GO:0000958 mitochondrial mRNA catabolic process
Biological Process GO:0006397 mRNA processing
Biological Process GO:0000288 nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay
Biological Process GO:0090304 nucleic acid metabolic process
Biological Process GO:0045070 positive regulation of viral genome replication
Biological Process GO:0044528 regulation of mitochondrial mRNA stability

Reference

[1] Guo X, Ren X, Yan C, Huang H. Quantitative Proteomics Reveals the Role of Lysine Lactylation in Lenalidomide-Resistance in Multiple Myeloma Cells.. ACS Chem Biol 20(7):1728-1738. 2025 Jul 18. PMID: 40590393.