Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.
Protein

Beta-galactosidase

Gene

lacA

Organism
Aspergillus niger
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Experimental evidence at protein leveli

Functioni

Cleaves beta-linked terminal galactosyl residues from gangliosides, glycoproteins, and glycosaminoglycans.

Catalytic activityi

Hydrolysis of terminal non-reducing beta-D-galactose residues in beta-D-galactosides.

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Active sitei200 – 2001Proton donorSequence Analysis
Active sitei298 – 2981NucleophileSequence Analysis

GO - Molecular functioni

  1. beta-galactosidase activity Source: UniProtKB-EC

GO - Biological processi

  1. carbohydrate metabolic process Source: InterPro
Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-16612.

Protein family/group databases

CAZyiGH35. Glycoside Hydrolase Family 35.
mycoCLAPiLAC35A_ASPNG.

Names & Taxonomyi

Protein namesi
Recommended name:
Beta-galactosidase (EC:3.2.1.23)
Alternative name(s):
Lactase-N
Short name:
Lactase
INN: Tilactase
Gene namesi
Name:lacA
OrganismiAspergillus niger
Taxonomic identifieri5061 [NCBI]
Taxonomic lineageiEukaryotaFungiDikaryaAscomycotaPezizomycotinaEurotiomycetesEurotiomycetidaeEurotialesAspergillaceaeAspergillus

Pathology & Biotechi

Pharmaceutical usei

Capable of effecting hydrolysis of lactose in situ in the gastrointestinal tract of lactase-deficient subjects when given as replacement therapy at mealtime.

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Signal peptidei1 – 1919Sequence AnalysisAdd
BLAST
Chaini20 – 1006987Beta-galactosidasePRO_0000012192Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi156 – 1561N-linked (GlcNAc...)Sequence Analysis
Glycosylationi373 – 3731N-linked (GlcNAc...)Sequence Analysis
Glycosylationi402 – 4021N-linked (GlcNAc...)Sequence Analysis
Glycosylationi422 – 4221N-linked (GlcNAc...)Sequence Analysis
Glycosylationi478 – 4781N-linked (GlcNAc...)Sequence Analysis
Glycosylationi522 – 5221N-linked (GlcNAc...)Sequence Analysis
Glycosylationi622 – 6221N-linked (GlcNAc...)Sequence Analysis
Glycosylationi739 – 7391N-linked (GlcNAc...)Sequence Analysis
Glycosylationi760 – 7601N-linked (GlcNAc...)Sequence Analysis
Glycosylationi777 – 7771N-linked (GlcNAc...)Sequence Analysis
Glycosylationi805 – 8051N-linked (GlcNAc...)Sequence Analysis

Keywords - PTMi

Glycoprotein

Proteomic databases

PRIDEiP29853.

Interactioni

Structurei

3D structure databases

ProteinModelPortaliP29853.
SMRiP29853. Positions 41-1006.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Sequence similaritiesi

Belongs to the glycosyl hydrolase 35 family.Curated

Keywords - Domaini

Signal

Phylogenomic databases

eggNOGiCOG1874.

Family and domain databases

Gene3Di2.102.20.10. 1 hit.
2.60.120.260. 2 hits.
2.60.390.10. 1 hit.
3.20.20.80. 1 hit.
InterProiIPR018954. Betagal_dom2.
IPR025972. BetaGal_dom3.
IPR025300. BetaGal_jelly_roll_dom.
IPR008979. Galactose-bd-like.
IPR019801. Glyco_hydro_35_CS.
IPR013781. Glyco_hydro_catalytic_dom.
IPR001944. Glycoside_Hdrlase_35.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PANTHERiPTHR23421. PTHR23421. 1 hit.
PfamiPF10435. BetaGal_dom2. 1 hit.
PF13363. BetaGal_dom3. 1 hit.
PF13364. BetaGal_dom4_5. 1 hit.
PF01301. Glyco_hydro_35. 1 hit.
[Graphical view]
PRINTSiPR00742. GLHYDRLASE35.
SMARTiSM01029. BetaGal_dom2. 1 hit.
[Graphical view]
SUPFAMiSSF117100. SSF117100. 1 hit.
SSF49785. SSF49785. 2 hits.
SSF51445. SSF51445. 1 hit.
PROSITEiPS01182. GLYCOSYL_HYDROL_F35. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Sequence processingi: The displayed sequence is further processed into a mature form.

P29853-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MKLSSACAIA LLAAQAAGAS IKHRINGFTL TEHSDPAKRE LLQKYVTWDD
60 70 80 90 100
KSLFINGERI MIFSGEFHPF RLPVKELQLD IFQKVKALGF NCVSFYVDWA
110 120 130 140 150
LVEGKPGEYR ADGIFDLEPF FDAASEAGIY LLARPGPYIN AESSGGGFPG
160 170 180 190 200
WLQRVNGTLR SSDKAYLDAT DNYVSHVAAT IAKYQITNGG PIILYQPENE
210 220 230 240 250
YTSGCSGVEF PDPVYMQYVE DQARNAGVVI PLINNDASAS GNNAPGTGKG
260 270 280 290 300
AVDIYGHDSY PLGFDCANPT VWPSGDLPTN FRTLHLEQSP TTPYAIVEFQ
310 320 330 340 350
GGSYDPWGGP GFAACSELLN NEFERVFYKN DFSFQIAIMN LYMIFGGTNW
360 370 380 390 400
GNLGYPNGYT SYDYGSAVTE SRNITREKYS ELKLLGNFAK VSPGYLTASP
410 420 430 440 450
GNLTTSGYAD TTDLTVTPLL GNSTGSFFVV RHSDYSSEES TSYKLRLPTS
460 470 480 490 500
AGSVTIPQLG GTLTLNGRDS KIHVTDHNVS GTNIIYSTAE VFTWKKFADG
510 520 530 540 550
KVLVLYGGAG EHHELAISTK SNVTVIEGSE SGISSKQTSS SVVVGWDVST
560 570 580 590 600
TRRIIQVGDL KILLLDRNSA YNYWVPQLAT DGTSPGFSTP EKVASSIIVK
610 620 630 640 650
AGYLVRTAYL KGSGLYLTAD FNATTSVEVI GVPSTAKNLF INGDKTSHTV
660 670 680 690 700
DKNGIWSATV DYNAPDISLP SLKDLDWKYV DTLPEIQSSY DDSLWPAADL
710 720 730 740 750
KQTKNTLRSL TTPTSLYSSD YGFHTGYLLY RGHFTATGNE STFAIDTQGG
760 770 780 790 800
SAFGSSVWLN GTYLGSWTGL YANSDYNATY NLPQLQAGKT YVITVVIDNM
810 820 830 840 850
GLEENWTVGE DLMKSPRGIS TSCLPDGQAA PISWKLTGNL GGEDYEDKVR
860 870 880 890 900
GPLNEGGLYA ERQGFHQPEP PSQNWKSSSP LEGLSEAGIG FYSASFDLDL
910 920 930 940 950
PKDGMSHCSS TSVTALRHPR TACRSTSTDI VCEIHKQHRT SDQLPCPRGN
960 970 980 990 1000
PELSRNELVG GDPVALDSAG GKLESLELSY TTPVLTALGE VESVDQPKYK

KRKGAY
Length:1,006
Mass (Da):109,161
Last modified:February 1, 1994 - v2
Checksum:i7157B28A83805488
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Sequence conflicti206 – 2061S → C in CAA00105. 1 PublicationCurated

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L06037 Genomic DNA. Translation: AAA32696.1.
S37150 mRNA. Translation: AAC60538.1.
A00968 Unassigned DNA. Translation: CAA00105.1.
PIRiT31685.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L06037 Genomic DNA. Translation: AAA32696.1.
S37150 mRNA. Translation: AAC60538.1.
A00968 Unassigned DNA. Translation: CAA00105.1.
PIRiT31685.

3D structure databases

ProteinModelPortaliP29853.
SMRiP29853. Positions 41-1006.
ModBaseiSearch...
MobiDBiSearch...

Chemistry

BindingDBiP29853.
ChEMBLiCHEMBL4753.

Protein family/group databases

CAZyiGH35. Glycoside Hydrolase Family 35.
mycoCLAPiLAC35A_ASPNG.

Proteomic databases

PRIDEiP29853.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Phylogenomic databases

eggNOGiCOG1874.

Enzyme and pathway databases

BioCyciMetaCyc:MONOMER-16612.

Family and domain databases

Gene3Di2.102.20.10. 1 hit.
2.60.120.260. 2 hits.
2.60.390.10. 1 hit.
3.20.20.80. 1 hit.
InterProiIPR018954. Betagal_dom2.
IPR025972. BetaGal_dom3.
IPR025300. BetaGal_jelly_roll_dom.
IPR008979. Galactose-bd-like.
IPR019801. Glyco_hydro_35_CS.
IPR013781. Glyco_hydro_catalytic_dom.
IPR001944. Glycoside_Hdrlase_35.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PANTHERiPTHR23421. PTHR23421. 1 hit.
PfamiPF10435. BetaGal_dom2. 1 hit.
PF13363. BetaGal_dom3. 1 hit.
PF13364. BetaGal_dom4_5. 1 hit.
PF01301. Glyco_hydro_35. 1 hit.
[Graphical view]
PRINTSiPR00742. GLHYDRLASE35.
SMARTiSM01029. BetaGal_dom2. 1 hit.
[Graphical view]
SUPFAMiSSF117100. SSF117100. 1 hit.
SSF49785. SSF49785. 2 hits.
SSF51445. SSF51445. 1 hit.
PROSITEiPS01182. GLYCOSYL_HYDROL_F35. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. "Saccharomyces cerevisiae cells secreting an Aspergillus niger beta-galactosidase grow on whey permeate."
    Kumar V., Ramakrishnan S., Teeri T.T., Knowles J.K., Hartley B.S.
    Biotechnology (N.Y.) 10:82-85(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA / MRNA].
    Strain: VTT D-80144.
  2. Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA], PHARMACEUTICAL USE.
    Strain: VTT D-80144.

Entry informationi

Entry nameiBGAL_ASPNG
AccessioniPrimary (citable) accession number: P29853
Entry historyi
Integrated into UniProtKB/Swiss-Prot: April 1, 1993
Last sequence update: February 1, 1994
Last modified: October 1, 2014
This is version 87 of the entry and version 2 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programFungal Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Pharmaceutical

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.