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B4SRK3 (NAGZ_STRM5) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 39. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (3) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Beta-hexosaminidase

EC=3.2.1.52
Alternative name(s):
Beta-N-acetylhexosaminidase
N-acetyl-beta-glucosaminidase
Gene names
Name:nagZ
Ordered Locus Names:Smal_2968
OrganismStenotrophomonas maltophilia (strain R551-3) [Complete proteome] [HAMAP]
Taxonomic identifier391008 [NCBI]
Taxonomic lineageBacteriaProteobacteriaGammaproteobacteriaXanthomonadalesXanthomonadaceaeStenotrophomonasStenotrophomonas maltophilia group

Protein attributes

Sequence length335 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

Plays a role in peptidoglycan recycling by cleaving the terminal beta-1,4-linked N-acetylglucosamine (GlcNAc) from peptide-linked peptidoglycan fragments, giving rise to free GlcNAc, anhydro-N-acetylmuramic acid and anhydro-N-acetylmuramic acid-linked peptides By similarity. HAMAP-Rule MF_00364

Catalytic activity

Hydrolysis of terminal non-reducing N-acetyl-D-hexosamine residues in N-acetyl-beta-D-hexosaminides. HAMAP-Rule MF_00364

Pathway

Cell wall biogenesis; peptidoglycan recycling. HAMAP-Rule MF_00364

Subcellular location

Cytoplasm By similarity HAMAP-Rule MF_00364.

Sequence similarities

Belongs to the glycosyl hydrolase 3 family. NagZ subfamily.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 335335Beta-hexosaminidase HAMAP-Rule MF_00364
PRO_1000121075

Regions

Region163 – 1642Substrate binding By similarity

Sites

Active site1761Proton donor/acceptor By similarity
Active site2471Nucleophile By similarity
Binding site601Substrate By similarity
Binding site681Substrate By similarity
Binding site1331Substrate By similarity
Site1741Important for catalytic activity By similarity

Sequences

Sequence LengthMass (Da)Tools
B4SRK3 [UniParc].

Last modified September 23, 2008. Version 1.
Checksum: B8FBE0574AE2F163

FASTA33535,592
        10         20         30         40         50         60 
MLLIGVAGTE LTAQERDWLQ HDAVAGVVLF KRNFASRQQV TDLSAAIRAA APRPQLICVD 

        70         80         90        100        110        120 
QEGGRVQRFR EGYSELPPLQ DIGALYATDP QQALALAEQH AWLMASEVRA SGLDLSFAPV 

       130        140        150        160        170        180 
VDLGRGNRAI GNRAFSEDPQ VVAAFTAAYV RGMHAVGMAA TLKHFPGHGT VLEDTHVDTA 

       190        200        210        220        230        240 
IDPRALDELR AQDLVPFQAG IAAGADAVMM AHVVYPQVAP EPAGYSPRWI QDILRGELGF 

       250        260        270        280        290        300 
RGVVFSDDIG MAASHSAGGV PARVHAHLDA GCDVVLVCHP ELVDEALHAV QGRSLNTAAL 

       310        320        330 
LGLLGRGALG WDGLLADARH GDTQSHLLET LGRTV 

« Hide

References

[1]"Complete sequence of Stenotrophomonas maltophilia R551-3."
US DOE Joint Genome Institute
Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Lang D., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Mikhailova N. expand/collapse author list , Taghavi S., Monchy S., Newman L., Vangronsveld J., van der Lelie D., Richardson P.
Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: R551-3.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP001111 Genomic DNA. Translation: ACF52667.1.
RefSeqYP_002029350.1. NC_011071.1.

3D structure databases

ProteinModelPortalB4SRK3.
SMRB4SRK3. Positions 2-280.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING391008.Smal_2968.

Protein family/group databases

CAZyGH3. Glycoside Hydrolase Family 3.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaACF52667; ACF52667; Smal_2968.
GeneID6475715.
KEGGsmt:Smal_2968.
PATRIC23710912. VBISteMal40512_2990.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG1472.
HOGENOMHOG000248526.
KOK01207.
OMAAGFSSYW.
OrthoDBEOG6BCT06.
ProtClustDBPRK05337.

Enzyme and pathway databases

BioCycSMAL391008:GH1H-3039-MONOMER.
UniPathwayUPA00544.

Family and domain databases

Gene3D3.20.20.300. 1 hit.
HAMAPMF_00364. NagZ.
InterProIPR022956. Beta_hexosaminidase_bac.
IPR019800. Glyco_hydro_3_AS.
IPR001764. Glyco_hydro_3_N.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PfamPF00933. Glyco_hydro_3. 1 hit.
[Graphical view]
SUPFAMSSF51445. SSF51445. 1 hit.
PROSITEPS00775. GLYCOSYL_HYDROL_F3. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameNAGZ_STRM5
AccessionPrimary (citable) accession number: B4SRK3
Entry history
Integrated into UniProtKB/Swiss-Prot: April 14, 2009
Last sequence update: September 23, 2008
Last modified: April 16, 2014
This is version 39 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

PATHWAY comments

Index of metabolic and biosynthesis pathways

Glycosyl hydrolases

Classification of glycosyl hydrolase families and list of entries