ID PAN2_CHAGB Reviewed; 1102 AA.
AC Q2GSV2;
DT 24-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT 24-JUL-2007, sequence version 2.
DT 24-JAN-2024, entry version 89.
DE RecName: Full=PAN2-PAN3 deadenylation complex catalytic subunit PAN2 {ECO:0000255|HAMAP-Rule:MF_03182};
DE EC=3.1.13.4 {ECO:0000255|HAMAP-Rule:MF_03182};
DE AltName: Full=PAB1P-dependent poly(A)-specific ribonuclease {ECO:0000255|HAMAP-Rule:MF_03182};
DE AltName: Full=Poly(A)-nuclease deadenylation complex subunit 2 {ECO:0000255|HAMAP-Rule:MF_03182};
DE Short=PAN deadenylation complex subunit 2 {ECO:0000255|HAMAP-Rule:MF_03182};
GN Name=PAN2 {ECO:0000255|HAMAP-Rule:MF_03182}; ORFNames=CHGG_08952;
OS Chaetomium globosum (strain ATCC 6205 / CBS 148.51 / DSM 1962 / NBRC 6347 /
OS NRRL 1970) (Soil fungus).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Pezizomycotina; Sordariomycetes;
OC Sordariomycetidae; Sordariales; Chaetomiaceae; Chaetomium.
OX NCBI_TaxID=306901;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 6205 / CBS 148.51 / DSM 1962 / NBRC 6347 / NRRL 1970;
RX PubMed=25720678; DOI=10.1128/genomea.00021-15;
RA Cuomo C.A., Untereiner W.A., Ma L.-J., Grabherr M., Birren B.W.;
RT "Draft genome sequence of the cellulolytic fungus Chaetomium globosum.";
RL Genome Announc. 3:E0002115-E0002115(2015).
CC -!- FUNCTION: Catalytic subunit of the poly(A)-nuclease (PAN) deadenylation
CC complex, one of two cytoplasmic mRNA deadenylases involved in mRNA
CC turnover. PAN specifically shortens poly(A) tails of RNA and the
CC activity is stimulated by poly(A)-binding protein PAB1. PAN
CC deadenylation is followed by rapid degradation of the shortened mRNA
CC tails by the CCR4-NOT complex. Deadenylated mRNAs are then degraded by
CC two alternative mechanisms, namely exosome-mediated 3'-5'
CC exonucleolytic degradation, or deadenylation-dependent mRNA decaping
CC and subsequent 5'-3' exonucleolytic degradation by XRN1. May also be
CC involved in post-transcriptional maturation of mRNA poly(A) tails.
CC {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Exonucleolytic cleavage of poly(A) to 5'-AMP.; EC=3.1.13.4;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03182};
CC -!- COFACTOR:
CC Name=a divalent metal cation; Xref=ChEBI:CHEBI:60240;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_03182};
CC Note=Binds 2 metal cations per subunit in the catalytic exonuclease
CC domain. {ECO:0000255|HAMAP-Rule:MF_03182};
CC -!- ACTIVITY REGULATION: Positively regulated by the regulatory subunit
CC PAN3. {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- SUBUNIT: Forms a heterotrimer with an asymmetric homodimer of the
CC regulatory subunit PAN3 to form the poly(A)-nuclease (PAN)
CC deadenylation complex. {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- DOMAIN: Contains a pseudo-UCH domain. This ubiquitin C-terminal
CC hydrolase (UCH)-like or ubiquitin specific protease (USP)-like domain
CC is predicted to be catalytically inactive because it lacks the active
CC site catalytic triad characteristic of thiol proteases, with residues
CC at the equivalent structural positions that are incompatible with
CC catalysis, and it cannot bind ubiquitin. It functions as a structural
CC scaffold for intra- and intermolecular interactions in the complex.
CC {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- DOMAIN: The linker, or PAN3 interaction domain (PID), between the WD40
CC repeats and the pseudo-UCH domain mediates interaction with PAN3.
CC {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- SIMILARITY: Belongs to the peptidase C19 family. PAN2 subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_03182}.
CC -!- SEQUENCE CAUTION:
CC Sequence=EAQ84938.1; Type=Erroneous gene model prediction; Evidence={ECO:0000305};
CC Sequence=EAQ84938.1; Type=Frameshift; Evidence={ECO:0000305};
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DR EMBL; CH408034; EAQ84938.1; ALT_SEQ; Genomic_DNA.
DR RefSeq; XP_001226879.1; XM_001226878.1.
DR AlphaFoldDB; Q2GSV2; -.
DR SMR; Q2GSV2; -.
DR STRING; 306901.Q2GSV2; -.
DR GeneID; 4395014; -.
DR VEuPathDB; FungiDB:CHGG_08952; -.
DR eggNOG; KOG1275; Eukaryota.
DR HOGENOM; CLU_002369_1_0_1; -.
DR InParanoid; Q2GSV2; -.
DR OrthoDB; 9810at2759; -.
DR Proteomes; UP000001056; Unassembled WGS sequence.
DR GO; GO:0031251; C:PAN complex; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR GO; GO:0004535; F:poly(A)-specific ribonuclease activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006397; P:mRNA processing; IEA:UniProtKB-KW.
DR GO; GO:0000289; P:nuclear-transcribed mRNA poly(A) tail shortening; IEA:UniProtKB-UniRule.
DR CDD; cd06143; PAN2_exo; 1.
DR CDD; cd02672; Peptidase_C19P; 1.
DR Gene3D; 3.90.70.10; Cysteine proteinases; 1.
DR Gene3D; 3.30.420.10; Ribonuclease H-like superfamily/Ribonuclease H; 1.
DR Gene3D; 2.130.10.10; YVTN repeat-like/Quinoprotein amine dehydrogenase; 1.
DR HAMAP; MF_03182; PAN2; 1.
DR InterPro; IPR013520; Exonuclease_RNaseT/DNA_pol3.
DR InterPro; IPR030843; PAN2.
DR InterPro; IPR048841; PAN2_N.
DR InterPro; IPR028881; PAN2_UCH_dom.
DR InterPro; IPR038765; Papain-like_cys_pep_sf.
DR InterPro; IPR012337; RNaseH-like_sf.
DR InterPro; IPR036397; RNaseH_sf.
DR InterPro; IPR028889; USP_dom.
DR InterPro; IPR015943; WD40/YVTN_repeat-like_dom_sf.
DR InterPro; IPR036322; WD40_repeat_dom_sf.
DR PANTHER; PTHR15728; DEADENYLATION COMPLEX CATALYTIC SUBUNIT PAN2; 1.
DR PANTHER; PTHR15728:SF0; PAN2-PAN3 DEADENYLATION COMPLEX CATALYTIC SUBUNIT PAN2; 1.
DR Pfam; PF20770; PAN2_N; 1.
DR Pfam; PF00929; RNase_T; 1.
DR Pfam; PF13423; UCH_1; 1.
DR SMART; SM00479; EXOIII; 1.
DR SUPFAM; SSF54001; Cysteine proteinases; 1.
DR SUPFAM; SSF53098; Ribonuclease H-like; 1.
DR SUPFAM; SSF50978; WD40 repeat-like; 1.
DR PROSITE; PS50235; USP_3; 1.
PE 3: Inferred from homology;
KW Cytoplasm; Exonuclease; Hydrolase; Metal-binding; mRNA processing;
KW Nuclease; Reference proteome; Repeat; WD repeat.
FT CHAIN 1..1102
FT /note="PAN2-PAN3 deadenylation complex catalytic subunit
FT PAN2"
FT /id="PRO_0000295342"
FT REPEAT 20..59
FT /note="WD 1"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT REPEAT 104..144
FT /note="WD 2"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT REPEAT 269..308
FT /note="WD 3"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT DOMAIN 446..833
FT /note="USP"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT DOMAIN 881..1054
FT /note="Exonuclease"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT REGION 308..445
FT /note="Linker"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT REGION 423..442
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 884
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT BINDING 886
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT BINDING 993
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
FT BINDING 1046
FT /ligand="a divalent metal cation"
FT /ligand_id="ChEBI:CHEBI:60240"
FT /ligand_note="catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_03182"
SQ SEQUENCE 1102 AA; 123849 MW; 7120EABD2C771F76 CRC64;
MDADWDEVTR IAFPAPGSND YPRPATALAF DTIAELLWAG NDRGRVVSFY GRDLQRYTAF
KIHPPSEGPV RQFLFHDKGV IALGTRSVHM AMRRGPTLWN IRHDEMENLQ CMSFTSKGAS
EIIVAGFQDT MFVIDVVKGE IVKQKSKYIC AATRTGCVDL LDPITFKTVR SWQAHASYIN
DMDAQNDFIV TCGGSLKQQA AQTYMLDPYV NVFDLKNMTS MKPMPFPPLA AHVRLHPRML
TTSIVTSQHG QMHVVDIMNP NTSNVRYANV MSFINLFEIA PSGEALAMAD TECNIHLWGS
PSKIHFTDMA IPIEMPKAEE PAPMLDWSPD TPLSSIGMPY YREQLFSAWP SDIISDIGAP
PVQLDPSFLA SLKQMEWGFY GRNSRGLRRN QVEDTRACMK PSMQPPKFLS EKARESAMSY
SAAVPDPKVE QVPESSTDEL ESLKPEAPPI YRNLEIKYSK FGVDDFDFGY YNKTQYAGLE
NHIPNSYANS LLQLIHYTPL LRNMALQHAA TACVTDLCLL CELGFVFDML QKAEGSTCQA
TNMFKALGAT PQAAPLGLLE EETHVPSLST MSQGLSRFLF DRINHDYRSI NPISTTLEQT
LFNLPQPPTP DELVSRVLAT SAVVTIKCMN CRSETTRPGT AQVNDLMYPP PKGSARGGRM
HKTTFSQVLK TGVERETASK GWCSRCQRYQ NLQMRKTIHS VPAVLAINSA ISSQEHRKLW
ATPGWLPEEI GIIVDQGQFF CFEGEDLKLH LQRGMHNITV YSLIGMVVNI ESSSPQKTHL
VSVINVAHAD AAPSAESKWH LFNDFSVRPI STAEALTFNA AWKLPAVLLF QVKAANNKTN
MDWKTKLDTS LLYQDLTPHS DEKTYHVLDL EAEPPGPDTI VGLDTEFVSL KQPEIQMNSD
GERETIRPMS HALARVSVVR GQGEHEGEAF IDDYIAIREP VVDYLTLYSG ITPGDLDPRT
TKHNLVSLKV AYKKLWVLLN LGCKFLGHGL RQDFRVINIQ VPRAQVIDTI QVFYLKARLR
KLSLAFLAWF LLKEDIQLET HDSIEDARTA LKLYRKYLEF EDAGILEAML EDIYKVGRAT
NFKPPRKDDQ VIQRTDTPFL SR
//
