AGLU_SACS9
ID AGLU_SACS9 Reviewed; 700 AA.
AC D0KQM8; O59645;
DT 09-FEB-2010, integrated into UniProtKB/Swiss-Prot.
DT 15-DEC-2009, sequence version 1.
DT 25-MAY-2022, entry version 64.
DE RecName: Full=Alpha-glucosidase;
DE EC=3.2.1.20;
DE AltName: Full=Maltase;
GN Name=malA; OrderedLocusNames=Ssol_0793;
OS Saccharolobus solfataricus (strain 98/2) (Sulfolobus solfataricus).
OC Archaea; Crenarchaeota; Thermoprotei; Sulfolobales; Sulfolobaceae;
OC Saccharolobus.
OX NCBI_TaxID=555311;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], PROTEIN SEQUENCE OF 1-20 AND 552-561,
RP FUNCTION, BIOPHYSICOCHEMICAL PROPERTIES, AND INDUCTION.
RX PubMed=9495770; DOI=10.1128/jb.180.5.1287-1295.1998;
RA Rolfsmeier M., Haseltine C., Bini E., Clark A., Blum P.;
RT "Molecular characterization of the alpha-glucosidase gene (malA) from the
RT hyperthermophilic archaeon Sulfolobus solfataricus.";
RL J. Bacteriol. 180:1287-1295(1998).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=98/2;
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Tice H., Bruce D.,
RA Goodwin L., Pitluck S., Munk A.C., Brettin T., Detter J.C., Han C.,
RA Tapia R., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA Mead D.;
RT "Complete sequence of Sulfolobus solfataricus 98/2.";
RL Submitted (OCT-2009) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Major soluble alpha-glucosidase.
CC {ECO:0000269|PubMed:9495770}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=Hydrolysis of terminal, non-reducing (1->4)-linked alpha-D-
CC glucose residues with release of alpha-D-glucose.; EC=3.2.1.20;
CC -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC pH dependence:
CC Optimum pH is 4.5 for maltose hydrolysis, and 5.5 for glucogen
CC hydrolysis. {ECO:0000269|PubMed:9495770};
CC -!- SUBCELLULAR LOCATION: Cytoplasm.
CC -!- INDUCTION: Expressed during growth on maltose.
CC {ECO:0000269|PubMed:9495770}.
CC -!- SIMILARITY: Belongs to the glycosyl hydrolase 31 family. {ECO:0000305}.
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DR EMBL; AF042494; AAC38215.1; -; Genomic_DNA.
DR EMBL; CP001800; ACX91047.1; -; Genomic_DNA.
DR RefSeq; WP_014511456.1; NC_017274.1.
DR AlphaFoldDB; D0KQM8; -.
DR SMR; D0KQM8; -.
DR CAZy; GH31; Glycoside Hydrolase Family 31.
DR EnsemblBacteria; ACX91047; ACX91047; Ssol_0793.
DR GeneID; 38467420; -.
DR KEGG; sol:Ssol_0793; -.
DR HOGENOM; CLU_000631_7_2_2; -.
DR OMA; QGVDCFK; -.
DR BRENDA; 3.2.1.20; 6163.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0030246; F:carbohydrate binding; IEA:InterPro.
DR GO; GO:0032450; F:maltose alpha-glucosidase activity; IEA:UniProtKB-EC.
DR Gene3D; 2.60.40.1180; -; 2.
DR InterPro; IPR011013; Gal_mutarotase_sf_dom.
DR InterPro; IPR000322; Glyco_hydro_31.
DR InterPro; IPR030458; Glyco_hydro_31_AS.
DR InterPro; IPR025887; Glyco_hydro_31_N_dom.
DR InterPro; IPR013780; Glyco_hydro_b.
DR InterPro; IPR017853; Glycoside_hydrolase_SF.
DR Pfam; PF13802; Gal_mutarotas_2; 1.
DR Pfam; PF01055; Glyco_hydro_31; 1.
DR SUPFAM; SSF51445; SSF51445; 1.
DR SUPFAM; SSF74650; SSF74650; 1.
DR PROSITE; PS00129; GLYCOSYL_HYDROL_F31_1; 1.
PE 1: Evidence at protein level;
KW Cytoplasm; Direct protein sequencing; Glycosidase; Hydrolase.
FT CHAIN 1..700
FT /note="Alpha-glucosidase"
FT /id="PRO_0000391339"
FT ACT_SITE 320
FT /evidence="ECO:0000250"
FT ACT_SITE 323
FT /evidence="ECO:0000250"
FT ACT_SITE 416
FT /note="Proton donor"
FT /evidence="ECO:0000250"
FT CONFLICT 694..700
FT /note="Missing (in Ref. 1; AAC38215)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 700 AA; 81141 MW; 8F329E799CA542B7 CRC64;
MQTIKIYENK GVYKVVIGEP FPPIEFPLEQ KISSNKSLSE LGLTIVQQGN KVIVEKSLDL
KEHIIGLGEK AFELDRKRKR YVMYNVDAGA YKKYQDPLYV SIPLFISVKD GVATGYFFNS
ASKVIFDVGL EEYDKVIVTI PEDSVEFYVI EGPRIEDVLE KYTELTGKPF LPPMWAFGYM
ISRYSYYPQD KVVELVDIMQ KEGFRVAGVF LDIHYMDSYK LFTWHPYRFP EPKKLIDELH
KRNVKLITIV DHGIRVDQNY SPFLSGMGKF CEIESGELFV GKMWPGTTVY PDFFREDTRE
WWAGLISEWL SQGVDGIWLD MNEPTDFSRA IEIRDVLSSL PVQFRDDRLV TTFPDNVVHY
LRGKRVKHEK VRNAYPLYEA MATFKGFRTS HRNEIFILSR AGYAGIQRYA FIWTGDNTPS
WDDLKLQLQL VLGLSISGVP FVGCDIGGFQ GRNFAEIDNS MDLLVKYYAL ALFFPFYRSH
KATDGIDTEP VFLPDYYKEK VKEIVELRYK FLPYIYSLAL EASEKGHPVI RPLFYEFQDD
DDMYRIEDEY MVGKYLLYAP IVSKEESRLV TLPRGKWYNY WNGEIINGKS VVKSTHELPI
YLREGSIIPL EGDELIVYGE TSFKRYDNAE ITSSSNEIKF SREIYVSKLT ITSEKPVSKI
IVDDSKEIQV EKTMQNTYVA KINQKIRGKI NLEGSVLKQS