ID   XYNY_ACETH              Reviewed;        1077 AA.
AC   P51584;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   03-MAY-2023, entry version 141.
DE   RecName: Full=Endo-1,4-beta-xylanase Y;
DE            Short=Xylanase Y;
DE            EC=3.2.1.8;
DE   AltName: Full=1,4-beta-D-xylan xylanohydrolase Y;
DE            Short=XylY;
DE   Flags: Precursor;
GN   Name=xynY;
OS   Acetivibrio thermocellus (Hungateiclostridium thermocellum) (Clostridium
OS   thermocellum).
OC   Bacteria; Bacillota; Clostridia; Eubacteriales; Oscillospiraceae;
OC   Acetivibrio.
OX   NCBI_TaxID=1515;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=YS;
RX   PubMed=7717969; DOI=10.1042/bj3070151;
RA   Fontes C.M.G.A., Hazelwood G.P., Morag E., Hall J., Hirst B.H.,
RA   Gilbert H.J.;
RT   "Evidence for a general role for non-catalytic thermostabilizing domains in
RT   xylanases from thermophilic bacteria.";
RL   Biochem. J. 307:151-158(1995).
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=Endohydrolysis of (1->4)-beta-D-xylosidic linkages in xylans.;
CC         EC=3.2.1.8;
CC   -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC       pH dependence:
CC         Optimum pH is 6.8.;
CC       Temperature dependence:
CC         Optimum temperature is 75 degrees Celsius.;
CC   -!- INTERACTION:
CC       P51584; Q06851: cipA; Xeno; NbExp=5; IntAct=EBI-1037473, EBI-687595;
CC   -!- SIMILARITY: Belongs to the glycosyl hydrolase 10 (cellulase F) family.
CC       {ECO:0000305}.
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DR   EMBL; X83269; CAA58242.1; -; Genomic_DNA.
DR   PIR; S54975; S54975.
DR   PDB; 1DYO; X-ray; 2.10 A; A/B=558-718.
DR   PDB; 1GKK; X-ray; 1.60 A; A/B=792-1077.
DR   PDB; 1GKL; X-ray; 1.40 A; A/B=792-1077.
DR   PDB; 1H6X; X-ray; 2.23 A; A=560-720.
DR   PDB; 1H6Y; X-ray; 2.12 A; A/B=560-720.
DR   PDB; 1OHZ; X-ray; 2.20 A; B=733-791.
DR   PDB; 1WB4; X-ray; 1.40 A; A/B=792-1077.
DR   PDB; 1WB5; X-ray; 1.40 A; A/B=792-1077.
DR   PDB; 1WB6; X-ray; 1.40 A; A/B=792-1077.
DR   PDB; 2CCL; X-ray; 2.03 A; B/D=730-791.
DR   PDB; 2W5F; X-ray; 1.90 A; A/B=32-551.
DR   PDB; 2WYS; X-ray; 2.75 A; A/B=33-551.
DR   PDB; 2WZE; X-ray; 2.50 A; A/B=33-551.
DR   PDB; 3ZI7; X-ray; 2.30 A; A/B=792-1077.
DR   PDB; 4BAG; X-ray; 1.90 A; A/B=792-1077.
DR   PDB; 4H35; X-ray; 1.90 A; A/B=792-1077.
DR   PDB; 5FXM; X-ray; 1.99 A; A=792-1077.
DR   PDB; 6FJ4; X-ray; 1.70 A; A=803-1077.
DR   PDB; 6Y8G; X-ray; 1.80 A; AAA/BBB=792-1077.
DR   PDBsum; 1DYO; -.
DR   PDBsum; 1GKK; -.
DR   PDBsum; 1GKL; -.
DR   PDBsum; 1H6X; -.
DR   PDBsum; 1H6Y; -.
DR   PDBsum; 1OHZ; -.
DR   PDBsum; 1WB4; -.
DR   PDBsum; 1WB5; -.
DR   PDBsum; 1WB6; -.
DR   PDBsum; 2CCL; -.
DR   PDBsum; 2W5F; -.
DR   PDBsum; 2WYS; -.
DR   PDBsum; 2WZE; -.
DR   PDBsum; 3ZI7; -.
DR   PDBsum; 4BAG; -.
DR   PDBsum; 4H35; -.
DR   PDBsum; 5FXM; -.
DR   PDBsum; 6FJ4; -.
DR   PDBsum; 6Y8G; -.
DR   AlphaFoldDB; P51584; -.
DR   SMR; P51584; -.
DR   DIP; DIP-35413N; -.
DR   IntAct; P51584; 1.
DR   DrugBank; DB04522; Dexfosfoserine.
DR   DrugBank; DB07767; Ferulic acid.
DR   DrugBank; DB08711; Methyl vanillate.
DR   DrugBank; DB08587; Sinapic acid.
DR   DrugBank; DB08589; SYRINGATE.
DR   CAZy; CBM22; Carbohydrate-Binding Module Family 22.
DR   CAZy; GH10; Glycoside Hydrolase Family 10.
DR   ESTHER; clotm-xyny; A85-Feruloyl-Esterase.
DR   BRENDA; 3.2.1.8; 1530.
DR   EvolutionaryTrace; P51584; -.
DR   GO; GO:0043263; C:cellulosome; IDA:MENGO.
DR   GO; GO:0031176; F:endo-1,4-beta-xylanase activity; IEA:UniProtKB-EC.
DR   GO; GO:0045493; P:xylan catabolic process; IEA:UniProtKB-KW.
DR   CDD; cd14256; Dockerin_I; 1.
DR   Gene3D; 3.40.50.1820; alpha/beta hydrolase; 1.
DR   Gene3D; 1.10.1330.10; Dockerin domain; 1.
DR   Gene3D; 2.60.120.260; Galactose-binding domain-like; 2.
DR   Gene3D; 3.20.20.80; Glycosidases; 1.
DR   InterPro; IPR029058; AB_hydrolase.
DR   InterPro; IPR003305; CenC_carb-bd.
DR   InterPro; IPR002105; Dockerin_1_rpt.
DR   InterPro; IPR016134; Dockerin_dom.
DR   InterPro; IPR036439; Dockerin_dom_sf.
DR   InterPro; IPR018247; EF_Hand_1_Ca_BS.
DR   InterPro; IPR000801; Esterase-like.
DR   InterPro; IPR008979; Galactose-bd-like_sf.
DR   InterPro; IPR044846; GH10.
DR   InterPro; IPR031158; GH10_AS.
DR   InterPro; IPR001000; GH10_dom.
DR   InterPro; IPR017853; Glycoside_hydrolase_SF.
DR   PANTHER; PTHR31490:SF88; BETA-XYLANASE; 1.
DR   PANTHER; PTHR31490; GLYCOSYL HYDROLASE; 1.
DR   Pfam; PF02018; CBM_4_9; 2.
DR   Pfam; PF00404; Dockerin_1; 1.
DR   Pfam; PF00756; Esterase; 1.
DR   Pfam; PF00331; Glyco_hydro_10; 1.
DR   PRINTS; PR00134; GLHYDRLASE10.
DR   SMART; SM00633; Glyco_10; 1.
DR   SUPFAM; SSF51445; (Trans)glycosidases; 1.
DR   SUPFAM; SSF53474; alpha/beta-Hydrolases; 1.
DR   SUPFAM; SSF49785; Galactose-binding domain-like; 2.
DR   SUPFAM; SSF63446; Type I dockerin domain; 1.
DR   PROSITE; PS00448; CLOS_CELLULOSOME_RPT; 2.
DR   PROSITE; PS51766; DOCKERIN; 1.
DR   PROSITE; PS00018; EF_HAND_1; 2.
DR   PROSITE; PS00591; GH10_1; 1.
DR   PROSITE; PS51760; GH10_2; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Carbohydrate metabolism; Glycosidase; Hydrolase;
KW   Polysaccharide degradation; Repeat; Signal; Xylan degradation.
FT   SIGNAL          1..26
FT                   /evidence="ECO:0000255"
FT   CHAIN           27..1077
FT                   /note="Endo-1,4-beta-xylanase Y"
FT                   /id="PRO_0000007972"
FT   DOMAIN          33..180
FT                   /note="CBM-cenC 1"
FT   DOMAIN          189..538
FT                   /note="GH10"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01096"
FT   DOMAIN          565..714
FT                   /note="CBM-cenC 2"
FT   DOMAIN          728..796
FT                   /note="Dockerin"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01102"
FT   REGION          543..563
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   ACT_SITE        337
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250"
FT   ACT_SITE        460
FT                   /note="Nucleophile"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU10061"
FT   STRAND          34..39
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          42..44
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          48..52
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          56..60
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           65..67
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          70..74
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          78..80
FT                   /evidence="ECO:0007829|PDB:2WYS"
FT   STRAND          82..86
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   TURN            88..90
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          96..104
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          107..121
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   TURN            122..124
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          127..138
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          143..150
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          155..166
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          170..179
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           195..198
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   TURN            199..202
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          204..209
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           213..215
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           217..226
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          228..234
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           238..241
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          242..248
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          251..254
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   TURN            257..259
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           260..268
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          272..279
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          281..283
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           286..289
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          293..297
FT                   /evidence="ECO:0007829|PDB:2WYS"
FT   HELIX           302..323
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          329..337
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           343..348
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          355..358
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           363..368
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           373..384
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          390..397
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           401..416
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          422..425
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          428..431
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          433..435
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           439..450
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          453..464
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   TURN            466..469
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           472..492
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          498..507
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           515..517
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          520..522
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           530..535
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   HELIX           541..543
FT                   /evidence="ECO:0007829|PDB:2W5F"
FT   STRAND          566..571
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          581..583
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          587..593
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          596..599
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          601..605
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          613..618
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   TURN            620..622
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          628..636
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          639..642
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          644..653
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          659..669
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          675..683
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          689..699
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          704..713
FT                   /evidence="ECO:0007829|PDB:1DYO"
FT   STRAND          738..740
FT                   /evidence="ECO:0007829|PDB:2CCL"
FT   HELIX           743..753
FT                   /evidence="ECO:0007829|PDB:2CCL"
FT   HELIX           761..767
FT                   /evidence="ECO:0007829|PDB:2CCL"
FT   HELIX           777..787
FT                   /evidence="ECO:0007829|PDB:2CCL"
FT   HELIX           817..820
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          828..836
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          839..847
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          858..863
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   TURN            876..878
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           880..889
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          896..900
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   TURN            910..912
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           913..919
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           921..928
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          934..937
FT                   /evidence="ECO:0007829|PDB:3ZI7"
FT   HELIX           938..942
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           943..947
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          948..953
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           955..967
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   TURN            968..970
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          973..978
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          983..986
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           987..1001
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          1009..1015
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           1021..1032
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          1039..1041
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   TURN            1043..1045
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   STRAND          1048..1053
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           1060..1070
FT                   /evidence="ECO:0007829|PDB:1GKL"
FT   HELIX           1071..1073
FT                   /evidence="ECO:0007829|PDB:1GKL"
SQ   SEQUENCE   1077 AA;  119673 MW;  BFC8D2D22C5726A0 CRC64;
     MKNKRVLAKI TALVVLLGVF FVLPSNISQL YADYEVVHDT FEVNFDGWCN LGVDTYLTAV
     ENEGNNGTRG MMVINRSSAS DGAYSEKGFY LDGGVEYKYS VFVKHNGTGT ETFKLSVSYL
     DSETEEENKE VIATKDVVAG EWTEISAKYK APKTAVNITL SITTDSTVDF IFDDVTITRK
     GMAEANTVYA ANAVLKDMYA NYFRVGSVLN SGTVNNSSIK ALILREFNSI TCENEMKPDA
     TLVQSGSTNT NIRVSLNRAA SILNFCAQNN IAVRGHTLVW HSQTPQWFFK DNFQDNGNWV
     SQSVMDQRLE SYIKNMFAEI QRQYPSLNLY AYDVVNEAVS DDANRTRYYG GAREPGYGNG
     RSPWVQIYGD NKFIEKAFTY ARKYAPANCK LYYNDYNEYW DHKRDCIASI CANLYNKGLL
     DGVGMQSHIN ADMNGFSGIQ NYKAALQKYI NIGCDVQITE LDISTENGKF SLQQQADKYK
     AVFQAAVDIN RTSSKGKVTA VCVWGPNDAN TWLGSQNAPL LFNANNQPKP AYNAVASIIP
     QSEWGDGNNP AGGGGGGKPE EPDANGYYYH DTFEGSVGQW TARGPAEVLL SGRTAYKGSE
     SLLVRNRTAA WNGAQRALNP RTFVPGNTYC FSVVASFIEG ASSTTFCMKL QYVDGSGTQR
     YDTIDMKTVG PNQWVHLYNP QYRIPSDATD MYVYVETADD TINFYIDEAI GAVAGTVIEG
     PAPQPTQPPV LLGDVNGDGT INSTDLTMLK RSVLRAITLT DDAKARADVD KNGSINSTDV
     LLLSRYLLRV IDKFPVAENP SSSFKYESAV QYRPAPDSYL NPCPQAGRIV KETYTGINGT
     KSLNVYLPYG YDPNKKYNIF YLMHGGGENE NTIFSNDVKL QNILDHAIMN GELEPLIVVT
     PTFNGGNCTA QNFYQEFRQN VIPFVESKYS TYAESTTPQG IAASRMHRGF GGFSMGGLTT
     WYVMVNCLDY VAYFMPLSGD YWYGNSPQDK ANSIAEAINR SGLSKREYFV FAATGSDHIA
     YANMNPQIEA MKALPHFDYT SDFSKGNFYF LVAPGATHWW GYVRHYIYDA LPYFFHE
//