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Protein

Beta-fructosidase

Gene

bfrA

Organism
Thermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)
Status
Reviewed-Annotation score: -Experimental evidence at protein leveli

Functioni

Hydrolysis of sucrose, raffinose, inulin and levan. Specific for the fructose moiety and the beta-anomeric configuration of the glycosidic linkages of its substrates. The enzyme released fructose from sucrose and raffinose, and the fructose polymer inulin is hydrolyzed quantitatively in an exo-type fashion.

Catalytic activityi

Hydrolysis of terminal non-reducing beta-D-fructofuranoside residues in beta-D-fructofuranosides.PROSITE-ProRule annotation

Temperature dependencei

Optimum temperature is 90-95 degrees Celsius. Highly thermostable.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Active sitei171
Binding sitei33Substrate1
Binding sitei41Substrate1
Binding sitei92Substrate1
Binding sitei208Substrate1
Binding sitei260Substrate1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionGlycosidase, Hydrolase

Enzyme and pathway databases

BRENDAi3.2.1.26 6331

Protein family/group databases

CAZyiGH32 Glycoside Hydrolase Family 32

Names & Taxonomyi

Protein namesi
Recommended name:
Beta-fructosidase (EC:3.2.1.26)
Alternative name(s):
Invertase
Sucrase
Gene namesi
Name:bfrA
Ordered Locus Names:TM_1414
OrganismiThermotoga maritima (strain ATCC 43589 / MSB8 / DSM 3109 / JCM 10099)
Taxonomic identifieri243274 [NCBI]
Taxonomic lineageiBacteriaThermotogaeThermotogalesThermotogaceaeThermotoga
Proteomesi
  • UP000008183 Componenti: Chromosome

Pathology & Biotechi

Mutagenesis

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Mutagenesisi190E → A: Loss of activity. 1 Publication1
Mutagenesisi190E → D: Reduced activity. 1 Publication1

Chemistry databases

DrugBankiDB04272 Citric Acid

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001698811 – 432Beta-fructosidaseAdd BLAST432

Proteomic databases

PRIDEiO33833

Interactioni

Protein-protein interaction databases

STRINGi243274.TM1414

Structurei

Secondary structure

1432
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi5 – 7Combined sources3
Beta strandi11 – 24Combined sources14
Beta strandi27 – 35Combined sources9
Beta strandi38 – 40Combined sources3
Beta strandi45 – 56Combined sources12
Beta strandi58 – 64Combined sources7
Beta strandi71 – 81Combined sources11
Beta strandi84 – 93Combined sources10
Beta strandi102 – 114Combined sources13
Beta strandi133 – 143Combined sources11
Beta strandi145 – 156Combined sources12
Turni157 – 159Combined sources3
Beta strandi160 – 173Combined sources14
Beta strandi175 – 183Combined sources9
Beta strandi190 – 197Combined sources8
Beta strandi200 – 207Combined sources8
Turni208 – 211Combined sources4
Beta strandi212 – 221Combined sources10
Beta strandi224 – 233Combined sources10
Beta strandi236 – 238Combined sources3
Beta strandi240 – 244Combined sources5
Beta strandi249 – 258Combined sources10
Turni260 – 262Combined sources3
Helixi263 – 265Combined sources3
Helixi268 – 271Combined sources4
Beta strandi281 – 286Combined sources6
Beta strandi289 – 294Combined sources6
Helixi296 – 301Combined sources6
Beta strandi302 – 311Combined sources10
Beta strandi313 – 316Combined sources4
Beta strandi320 – 322Combined sources3
Beta strandi324 – 339Combined sources16
Beta strandi344 – 350Combined sources7
Beta strandi353 – 357Combined sources5
Beta strandi368 – 372Combined sources5
Beta strandi377 – 386Combined sources10
Beta strandi389 – 394Combined sources6
Turni395 – 397Combined sources3
Beta strandi398 – 403Combined sources6
Beta strandi412 – 427Combined sources16

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1UYPX-ray1.90A/B/C/D/E/F2-432[»]
1W2TX-ray1.87A/B/C/D/E/F2-432[»]
ProteinModelPortaliO33833
SMRiO33833
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiO33833

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni14 – 17Substrate binding4
Regioni74 – 75Substrate binding2
Regioni137 – 138Substrate binding2
Regioni188 – 190Substrate binding3

Sequence similaritiesi

Belongs to the glycosyl hydrolase 32 family.Curated

Phylogenomic databases

eggNOGiENOG4108HKT Bacteria
COG1621 LUCA
InParanoidiO33833
KOiK01193
OMAiWMGVPDG

Family and domain databases

Gene3Di2.115.10.20, 1 hit
InterProiView protein in InterPro
IPR013320 ConA-like_dom_sf
IPR001362 Glyco_hydro_32
IPR018053 Glyco_hydro_32_AS
IPR013189 Glyco_hydro_32_C
IPR013148 Glyco_hydro_32_N
IPR023296 Glyco_hydro_beta-prop_sf
PfamiView protein in Pfam
PF08244 Glyco_hydro_32C, 1 hit
PF00251 Glyco_hydro_32N, 1 hit
SMARTiView protein in SMART
SM00640 Glyco_32, 1 hit
SUPFAMiSSF49899 SSF49899, 1 hit
SSF75005 SSF75005, 1 hit
PROSITEiView protein in PROSITE
PS00609 GLYCOSYL_HYDROL_F32, 1 hit

Sequencei

Sequence statusi: Complete.

O33833-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MFKPNYHFFP ITGWMNDPNG LIFWKGKYHM FYQYNPRKPE WGNICWGHAV
60 70 80 90 100
SDDLVHWRHL PVALYPDDET HGVFSGSAVE KDGKMFLVYT YYRDPTHNKG
110 120 130 140 150
EKETQCVAMS ENGLDFVKYD GNPVISKPPE EGTHAFRDPK VNRSNGEWRM
160 170 180 190 200
VLGSGKDEKI GRVLLYTSDD LFHWKYEGVI FEDETTKEIE CPDLVRIGEK
210 220 230 240 250
DILIYSITST NSVLFSMGEL KEGKLNVEKR GLLDHGTDFY AAQTFFGTDR
260 270 280 290 300
VVVIGWLQSW LRTGLYPTKR EGWNGVMSLP RELYVENNEL KVKPVDELLA
310 320 330 340 350
LRKRKVFETA KSGTFLLDVK ENSYEIVCEF SGEIELRMGN ESEEVVITKS
360 370 380 390 400
RDELIVDTTR SGVSGGEVRK STVEDEATNR IRAFLDSCSV EFFFNDSIAF
410 420 430
SFRIHPENVY NILSVKSNQV KLEVFELENI WL
Length:432
Mass (Da):49,841
Last modified:January 1, 1998 - v1
Checksum:i39F61B2E1BC462B9
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AJ001073 Genomic DNA Translation: CAA04518.1
AE000512 Genomic DNA Translation: AAD36485.1
PIRiD72255
RefSeqiNP_229215.1, NC_000853.1
WP_004081649.1, NZ_CP011107.1

Genome annotation databases

EnsemblBacteriaiAAD36485; AAD36485; TM_1414
GeneIDi898062
KEGGitma:TM1414

Similar proteinsi

Entry informationi

Entry nameiBFRA_THEMA
AccessioniPrimary (citable) accession number: O33833
Entry historyiIntegrated into UniProtKB/Swiss-Prot: May 30, 2000
Last sequence update: January 1, 1998
Last modified: March 28, 2018
This is version 127 of the entry and version 1 of the sequence. See complete history.
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome
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Main funding by: National Institutes of Health