AGLU_TETPY
ID AGLU_TETPY Reviewed; 923 AA.
AC O00906;
DT 15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-1997, sequence version 1.
DT 25-MAY-2022, entry version 73.
DE RecName: Full=Lysosomal acid alpha-glucosidase;
DE EC=3.2.1.20 {ECO:0000269|PubMed:8768433};
DE AltName: Full=Acid maltase;
DE Flags: Precursor;
OS Tetrahymena pyriformis.
OC Eukaryota; Sar; Alveolata; Ciliophora; Intramacronucleata;
OC Oligohymenophorea; Hymenostomatida; Tetrahymenina; Tetrahymenidae;
OC Tetrahymena.
OX NCBI_TaxID=5908;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA], PARTIAL PROTEIN SEQUENCE, FUNCTION, CATALYTIC
RP ACTIVITY, BIOPHYSICOCHEMICAL PROPERTIES, AND SUBCELLULAR LOCATION.
RC STRAIN=W;
RX PubMed=8768433; DOI=10.1111/j.1550-7408.1996.tb03992.x;
RA Alam S., Nakashima S., Deyashiki Y., Banno Y., Hara A., Nozawa Y.;
RT "Molecular cloning of a gene encoding acid alpha-glucosidase from
RT Tetrahymena pyriformis.";
RL J. Eukaryot. Microbiol. 43:295-303(1996).
CC -!- FUNCTION: Essential for the degradation of glycogen to glucose in
CC lysosomes. Has both alpha-1,4 and alpha-1,6-glucosidase activity.
CC {ECO:0000269|PubMed:8768433}.
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 Evidence={ECO:0000269|PubMed:8768433};
CC -!- BIOPHYSICOCHEMICAL PROPERTIES:
CC pH dependence:
CC Optimum pH is 4.0. {ECO:0000269|PubMed:8768433};
CC -!- SUBCELLULAR LOCATION: Lysosome {ECO:0000269|PubMed:8768433}. Secreted
CC {ECO:0000269|PubMed:8768433}.
CC -!- SIMILARITY: Belongs to the glycosyl hydrolase 31 family. {ECO:0000305}.
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DR EMBL; D83384; BAA20462.1; -; mRNA.
DR AlphaFoldDB; O00906; -.
DR SMR; O00906; -.
DR CAZy; GH31; Glycoside Hydrolase Family 31.
DR GO; GO:0005576; C:extracellular region; IEA:UniProtKB-SubCell.
DR GO; GO:0005764; C:lysosome; 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; -; 1.
DR InterPro; IPR031727; Gal_mutarotase_N.
DR InterPro; IPR011013; Gal_mutarotase_sf_dom.
DR InterPro; IPR000322; Glyco_hydro_31.
DR InterPro; IPR030458; Glyco_hydro_31_AS.
DR InterPro; IPR030459; Glyco_hydro_31_CS.
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 Pfam; PF16863; NtCtMGAM_N; 1.
DR SUPFAM; SSF51445; SSF51445; 1.
DR SUPFAM; SSF74650; SSF74650; 1.
DR PROSITE; PS00129; GLYCOSYL_HYDROL_F31_1; 1.
DR PROSITE; PS00707; GLYCOSYL_HYDROL_F31_2; 1.
PE 1: Evidence at protein level;
KW Direct protein sequencing; Glycoprotein; Glycosidase; Hydrolase; Lysosome;
KW Secreted; Signal.
FT SIGNAL 1..17
FT /evidence="ECO:0000255"
FT PROPEP 18..36
FT /id="PRO_0000018574"
FT CHAIN 37..923
FT /note="Lysosomal acid alpha-glucosidase"
FT /id="PRO_0000018575"
FT ACT_SITE 455
FT /note="Nucleophile"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU10066"
FT ACT_SITE 458
FT /evidence="ECO:0000250"
FT ACT_SITE 585
FT /note="Proton donor"
FT /evidence="ECO:0000250"
FT CARBOHYD 65
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 405
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 440
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 586
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 621
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 646
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 848
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 908
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
FT CARBOHYD 912
FT /note="N-linked (GlcNAc...) asparagine"
FT /evidence="ECO:0000255"
SQ SEQUENCE 923 AA; 104117 MW; 6294809F43EA54C3 CRC64;
MKHQVLLPLL VTTAIIAGSV GVYTHSKPLL GQSQDQVLPP FTPPLQNGHI DLQGKYIVST
LDQVNATHIN IYANYNGPEA SYAMPKNKLI THILVSIVIN DVNQLGIKIT DRTYRHFEVP
YSNLFPHDKV FNFPANNQFD ITLPKRGEAF YLTIKRKDTG EVVFDTNNQF FVYSDLYHEF
TVAMQNEFIY GLGERRNKQF LYDSGEYTFL NKDQYESVAD GHPDQQTYGT HPMYLRRENS
GNFHVVFLRN YNSIQAVYSK GKSLTYKVVG GLLEFKIFLG DKSPETSLKL YHSYVNGFNL
HPFWAHGFHQ CRWGYKTSEM MTTVWDTFNT NGLPFDTIWS DIDYMKDLTD FTIDTSRYDK
AQMNTMLDRS VAAGVHWVPI IDAGIALGDV SNERGKELGV YQKSNKTGED LIGCVWPGKV
NYPDFNHPLS QEFWAEGLMN LTKNYGITPS GFWIDMNEFS NFINGEISED QNCIMPGDTT
TNPNYLGNSV EDFYTRIPFE VGGADHPQQE KTMSYDAPKY NYADAKTVYI PNYELREFDF
HNLNGFSEGI ATNYALKKMG NKLPFIISRS QIAGSGQFVQ HWTGDNGSQW DFLQYSLGEI
FNFNMYGIPM TGADICGFAQ NTTAELCARW MQVGAFYPFS RNHNSNDTIP QEPYAFPDST
YVLDSSKKSL RLRYALLKQY YSHFVSSNGV GTVFRPTFFN FPDDASLLTN DQQFMIGDSL
LGQPVLVQSA TPARFSHSSY LTFPSSGAFY DFVTDVATLN AQRYTNANNG QIKNVKFDDI
MPLYIREGYT VFTQLASTAL RSRLLDSNFE LHVALAKSGT SYTAKGKFIT IQDYSDDNLI
QKCIGANNCS FDIQVTGVVN GANLDLTIQI AGESAQTNFE TINVNKIIPY AADLKFAAST
ATFTISKNGT INASIPLQAA QQE