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Protein

Beta-hexosaminidase

Gene

nagZ

Organism
Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)
Status
Reviewed-Annotation score: Annotation score: 4 out of 5-Protein inferred from homologyi

Functioni

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.UniRule annotation

Catalytic activityi

Hydrolysis of terminal non-reducing N-acetyl-D-hexosamine residues in N-acetyl-beta-D-hexosaminides.UniRule annotation

Pathwayi

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei62 – 621SubstrateUniRule annotation
Binding sitei70 – 701SubstrateUniRule annotation
Binding sitei133 – 1331SubstrateUniRule annotation
Sitei174 – 1741Important for catalytic activityUniRule annotation
Active sitei176 – 1761Proton donor/acceptorUniRule annotation
Active sitei248 – 2481NucleophileUniRule annotation

GO - Molecular functioni

  1. beta-N-acetylhexosaminidase activity Source: UniProtKB-HAMAP

GO - Biological processi

  1. carbohydrate metabolic process Source: InterPro
  2. cell cycle Source: UniProtKB-KW
  3. cell division Source: UniProtKB-KW
  4. cell wall organization Source: UniProtKB-KW
  5. peptidoglycan biosynthetic process Source: UniProtKB-KW
  6. peptidoglycan turnover Source: UniProtKB-HAMAP
  7. regulation of cell shape Source: UniProtKB-KW
Complete GO annotation...

Keywords - Molecular functioni

Glycosidase, Hydrolase

Keywords - Biological processi

Cell cycle, Cell division, Cell shape, Cell wall biogenesis/degradation, Peptidoglycan synthesis

Enzyme and pathway databases

UniPathwayiUPA00544.

Protein family/group databases

CAZyiGH3. Glycoside Hydrolase Family 3.

Names & Taxonomyi

Protein namesi
Recommended name:
Beta-hexosaminidaseUniRule annotation (EC:3.2.1.52UniRule annotation)
Alternative name(s):
Beta-N-acetylhexosaminidaseUniRule annotation
N-acetyl-beta-glucosaminidaseUniRule annotation
Gene namesi
Name:nagZUniRule annotation
Ordered Locus Names:HI_0959
OrganismiHaemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd)
Taxonomic identifieri71421 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaPasteurellalesPasteurellaceaeHaemophilus
ProteomesiUP000000579 Componenti: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 351351Beta-hexosaminidasePRO_0000210789Add
BLAST

Interactioni

Subunit structurei

Monomer.Curated

Protein-protein interaction databases

STRINGi71421.HI0959.

Structurei

3D structure databases

ProteinModelPortaliP44955.
SMRiP44955. Positions 1-298.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Regioni163 – 1642Substrate bindingUniRule annotation

Sequence similaritiesi

Belongs to the glycosyl hydrolase 3 family. NagZ subfamily.UniRule annotation

Phylogenomic databases

eggNOGiCOG1472.
KOiK01207.
OMAiAGFSSYW.
OrthoDBiEOG6BCT06.
PhylomeDBiP44955.

Family and domain databases

Gene3Di3.20.20.300. 1 hit.
HAMAPiMF_00364. NagZ.
InterProiIPR022956. Beta_hexosaminidase_bac.
IPR019800. Glyco_hydro_3_AS.
IPR001764. Glyco_hydro_3_N.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PfamiPF00933. Glyco_hydro_3. 1 hit.
[Graphical view]
SUPFAMiSSF51445. SSF51445. 1 hit.
PROSITEiPS00775. GLYCOSYL_HYDROL_F3. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

P44955-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSSLLIDLKG KELEQEEVEL LSHPLVAGLI LFTRNFENRE QIQELIRSVR
60 70 80 90 100
QRVKKPLLIT VDQEGGRVQR FRDGFTMLPS MQAFQETLSA TEQVSFAKEA
110 120 130 140 150
GWQMAAEMIA LDIDLSFAPV LDLGHECRAI GDRSFSSDVK SAVNLATAFI
160 170 180 190 200
DGMHQAGMAS TGKHFPGHGH VLADSHLETP YDDRTKEEIF SGDLQPFQQL
210 220 230 240 250
ISQNKLDAIM PAHVIYSQCD SQPASGSKYW LKEILRKKLN FQGTIFSDDL
260 270 280 290 300
GMKGAGVMGN FVERSKKALN AGCDLLLLCN EREGVIQVLD NLKLTENQPH
310 320 330 340 350
FMARQARLQS LFKRRVINWN DLISDQRWRL NYQKLADIQS RWLDIQAAKN

D
Length:351
Mass (Da):39,704
Last modified:November 1, 1995 - v1
Checksum:iD33A955A65DEDA05
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L42023 Genomic DNA. Translation: AAC22620.1.
PIRiF64162.
RefSeqiNP_439120.1. NC_000907.1.
WP_005693307.1. NC_000907.1.

Genome annotation databases

EnsemblBacteriaiAAC22620; AAC22620; HI_0959.
GeneIDi949658.
KEGGihin:HI0959.
PATRICi20190577. VBIHaeInf48452_1001.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
L42023 Genomic DNA. Translation: AAC22620.1.
PIRiF64162.
RefSeqiNP_439120.1. NC_000907.1.
WP_005693307.1. NC_000907.1.

3D structure databases

ProteinModelPortaliP44955.
SMRiP44955. Positions 1-298.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi71421.HI0959.

Protein family/group databases

CAZyiGH3. Glycoside Hydrolase Family 3.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAC22620; AAC22620; HI_0959.
GeneIDi949658.
KEGGihin:HI0959.
PATRICi20190577. VBIHaeInf48452_1001.

Phylogenomic databases

eggNOGiCOG1472.
KOiK01207.
OMAiAGFSSYW.
OrthoDBiEOG6BCT06.
PhylomeDBiP44955.

Enzyme and pathway databases

UniPathwayiUPA00544.

Family and domain databases

Gene3Di3.20.20.300. 1 hit.
HAMAPiMF_00364. NagZ.
InterProiIPR022956. Beta_hexosaminidase_bac.
IPR019800. Glyco_hydro_3_AS.
IPR001764. Glyco_hydro_3_N.
IPR017853. Glycoside_hydrolase_SF.
[Graphical view]
PfamiPF00933. Glyco_hydro_3. 1 hit.
[Graphical view]
SUPFAMiSSF51445. SSF51445. 1 hit.
PROSITEiPS00775. GLYCOSYL_HYDROL_F3. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 51907 / DSM 11121 / KW20 / Rd.

Entry informationi

Entry nameiNAGZ_HAEIN
AccessioniPrimary (citable) accession number: P44955
Entry historyi
Integrated into UniProtKB/Swiss-Prot: November 1, 1995
Last sequence update: November 1, 1995
Last modified: March 4, 2015
This is version 107 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. Glycosyl hydrolases
    Classification of glycosyl hydrolase families and list of entries
  2. Haemophilus influenzae
    Haemophilus influenzae (strain Rd): entries and gene names
  3. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  4. 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.