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(-) Description

Title :  STRUCTURE AND ACTIVITY OF THE GH20 BETA-N-ACETYLHEXOSAMINIDASE FROM STREPTOMYCES COELICOLOR A3(2)
 
Authors :  N. Nguyen Thi, W. A. Offen, G. J. Davies, N. Doucet
Date :  20 Sep 13  (Deposition) - 12 Mar 14  (Release) - 09 Apr 14  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.80
Chains :  Asym./Biol. Unit :  A
Keywords :  Hydrolase, Beta-N-Acetylhexosaminidase, N-Acetylhexosaminides, Chitin Degradation, Streptomyces Coelicolor (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  N. Nguyen Thi, W. A. Offen, F. Shareck, G. J. Davies, N. Doucet
Structure And Activity Of The Streptomyces Coelicolor A3(2) Beta-N-Acetylhexosaminidase Provides Further Insight Into Gh20 Family Catalysis And Inhibition.
Biochemistry V. 53 1789 2014
PubMed-ID: 24559145  |  Reference-DOI: 10.1021/BI401697J

(-) Compounds

Molecule 1 - BETA-N-ACETYLHEXOSAMINIDASE
    Chains: A
    EC Number: 3.2.1.52
    Engineered: YES
    Expression System: STREPTOMYCES LIVIDANS
    Expression System Plasmid: PC109
    Expression System Strain: 10-164
    Expression System Taxid: 1916
    Fragment: RESIDUES 42-535
    Mutation: YES
    Organism Scientific: STREPTOMYCES COELICOLOR
    Organism Taxid: 1902
    Strain: A(3)2

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (2, 12)

Asymmetric/Biological Unit (2, 12)
No.NameCountTypeFull Name
1EDO11Ligand/Ion1,2-ETHANEDIOL
2NGO1Ligand/Ion2-METHYL-4,5-DIHYDRO-(1,2-DIDEOXY-ALPHA-D-GLUCOPYRANOSO)[2,1-D]-1,3-OXAZOLE

(-) Sites  (12, 12)

Asymmetric Unit (12, 12)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREARG A:150 , HIS A:238 , ASP A:301 , GLN A:302 , TRP A:332 , TRP A:349 , TYR A:381 , ASP A:383 , LEU A:394 , TRP A:396 , TRP A:430 , GLU A:432 , EDO A:1499 , HOH A:2170BINDING SITE FOR RESIDUE NGO A1495
02AC2SOFTWAREASP A:352 , LYS A:359 , TYR A:413 , PRO A:415 , HOH A:2348BINDING SITE FOR RESIDUE EDO A1496
03AC3SOFTWAREHIS A:226 , GLU A:228 , HOH A:2252 , HOH A:2446 , HOH A:2447BINDING SITE FOR RESIDUE EDO A1497
04AC4SOFTWARESER A:224 , HIS A:226 , HOH A:2056 , HOH A:2251 , HOH A:2253BINDING SITE FOR RESIDUE EDO A1498
05AC5SOFTWAREGLN A:302 , TRP A:396 , NGO A:1495 , HOH A:2448 , HOH A:2449BINDING SITE FOR RESIDUE EDO A1499
06AC6SOFTWAREHIS A:333 , GLN A:334 , TRP A:349 , THR A:354 , GLU A:358 , HOH A:2364 , HOH A:2451BINDING SITE FOR RESIDUE EDO A1500
07AC7SOFTWARETYR A:259 , PHE A:266 , HOH A:2453BINDING SITE FOR RESIDUE EDO A1501
08AC8SOFTWAREHIS A:333 , GLN A:334 , ALA A:336 , GLY A:337 , GLU A:358 , GLN A:361 , HOH A:2339BINDING SITE FOR RESIDUE EDO A1502
09AC9SOFTWAREALA A:303 , THR A:306 , PHE A:311 , HOH A:2312 , HOH A:2315 , HOH A:2319 , HOH A:2454BINDING SITE FOR RESIDUE EDO A1503
10BC1SOFTWAREHIS A:30 , ARG A:57 , ASP A:484BINDING SITE FOR RESIDUE EDO A1504
11BC2SOFTWARESER A:86 , GLY A:131 , THR A:132 , HOH A:2021BINDING SITE FOR RESIDUE EDO A1505
12BC3SOFTWAREASP A:272 , ASP A:274 , ARG A:317BINDING SITE FOR RESIDUE EDO A1506

(-) SS Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1A:251 -A:270

(-) Cis Peptide Bonds  (4, 4)

Asymmetric/Biological Unit
No.Residues
1Ile A:10 -Pro A:11
2Gly A:124 -Pro A:125
3Met A:235 -Pro A:236
4Phe A:445 -Pro A:446

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4C7G)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4C7G)

(-) Exons   (0, 0)

(no "Exon" information available for 4C7G)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:494
 aligned with Q9L068_STRCO | Q9L068 from UniProtKB/TrEMBL  Length:535

    Alignment length:494
                                    51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       351       361       371       381       391       401       411       421       431       441       451       461       471       481       491       501       511       521       531    
         Q9L068_STRCO    42 AEPTPLDRVIPAPASVEPGGAPYRITRGTHIRVDDSREARRVGDYLADLLRPATGYRLPVTSHGHGGIRLRLAEGPYGDEGYRLDSGREGVTITARKAAGLFHGVQTLRQLLPAAVEKDSAQPGPWLVAGGTIEDTPRYAWRSAMLDVSRHFFSVDEVKRYIDRVALYKYNKLHLHISDDQGWRLAIDSWPRLATYGGSTEVGGGPGGHYTKADYEEIVRYAASRHLEVVPEIDMPGHTNAALASYAELNCDGVAPPLYTGTKVGFSTLCVDKDVTYDFVDDVLGELAALTPGRYLHIGGDEAHSTPQADFVAFMKRVQPIVAKYGKTVVGWHQLAGAEPVEGALVQYWGLDRTSDAEKAQVAAAARNGTGLILSPADRTYLDMKYTKDTPLGLSWAGYVEVRRSYDWDPAAYLPGAPAEAVRGVEAPLWTETLSDPDQLDFMAFPRLPGVAELGWSPASTHDWDTYKVRLAGQAPHWEAMGIDYYRSPQVPWT 535
               SCOP domains d4c7ga1 A:1-138 automated matches                                                                                                         d4c7ga2 A:139-494 automated matches                                                                                                                                                                                                                                                                                                                                  SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ..............eeee....eee.....ee...hhhhhhhhhhhhhhhhhhhh....ee.....eeeeee.........eeeeee..eeeeee.hhhhhhhhhhhhhhhhhhhhhh.......eee..eeeee.....eeeeeee......hhhhhhhhhhhhhh....eeeee..............hhhhhh....hhhhh.....hhhhhhhhhhhhhhh..eeeee......hhhhhhhhhhhh......................hhhhhhhhhhhhhhhhhh....eee.........hhhhhhhhhhhhhhhhhhh..eeeee.hhhhh......eeee......hhhhhhhhhhhhhh..eeee..........................hhhhhhh.hhhhh....hhh.eeeeeeee......hhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh............ Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4c7g A   1 AEPTPLDRVIPAPASVEPGGAPYRITRGTHIRVDDSREARRVGDYLADLLRPATGYRLPVTSHGHGGIRLRLAEGPYGDEGYRLDSGREGVTITARKAAGLFHGVQTLRQLLPAAVEKDSAQPGPWLVAGGTIEDTPRYAWRSAMLDVSRHFFSVDEVKRYIDRVALYKYNKLHLHISDDQGWRLAIDSWPRLATYGGSTEVGGGPGGHYTKADYEEIVRYAASRHLEVVPEIDMPGHTNAALASYAELNCDGVAPPLYTGTKVGFSTLCVDKDVTYDFVDDVLGELAALTPGRYLHIGGDQAHSTPQADFVAFMKRVQPIVAKYGKTVVGWHQLAGAEPVEGALVQYWGLDRTSDAEKAQVAAAARNGTGLILSPADRTYLDMKYTKDTPLGLSWAGYVEVRRSYDWDPAAYLPGAPAEAVRGVEAPLWTETLSDPDQLDFMAFPRLPGVAELGWSPASTHDWDTYKVRLAGQAPHWEAMGIDYYRSPQVPWT 494
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290       300       310       320       330       340       350       360       370       380       390       400       410       420       430       440       450       460       470       480       490
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (2, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4C7G)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4C7G)

(-) Gene Ontology  (3, 3)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (Q9L068_STRCO | Q9L068)
molecular function
    GO:0004563    beta-N-acetylhexosaminidase activity    Catalysis of the hydrolysis of terminal non-reducing N-acetyl-D-hexosamine residues in N-acetyl-beta-D-hexosaminides.
    GO:0004553    hydrolase activity, hydrolyzing O-glycosyl compounds    Catalysis of the hydrolysis of any O-glycosyl bond.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.

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  Cis Peptide Bonds
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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/TrEMBL
        Q9L068_STRCO | Q9L068: 4c7d 4c7f

(-) Related Entries Specified in the PDB File

4c7d STRUCTURE AND ACTIVITY OF THE GH20 BETA-N- ACETYLHEXOSAMINIDASE FROM STREPTOMYCES COELICOLOR A3(2)
4c7f STRUCTURE AND ACTIVITY OF THE GH20 BETA-N- ACETYLHEXOSAMINIDASE FROM STREPTOMYCES COELICOLOR A3(2)