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(-) Description

Title :  CHITINASE B FROM SERRATIA MARCESCENS INACTIVE MUTANT E144Q IN COMPLEX WITH N-ACETYLGLUCOSAMINE-PENTAMER
 
Authors :  D. Komander, B. Synstad, V. G. H. Eijsink, D. M. F. Van Aalten
Date :  21 Aug 00  (Deposition) - 22 Jun 01  (Release) - 17 Aug 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.25
Chains :  Asym. Unit :  A,B
Biol. Unit 1:  A  (1x)
Biol. Unit 2:  B  (1x)
Keywords :  Chitin Degradation, Hydrolase, Glycosidase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  D. M. F. Van Aalten, D. Komander, B. Synstad, S. Gseidnes, M. G. Peter, V. G. H. Eijsink
Structural Insights Into The Catalytic Mechanism Of A Family 18 Exo-Chitinase
Proc. Natl. Acad. Sci. Usa V. 98 8979 2001
PubMed-ID: 11481469  |  Reference-DOI: 10.1073/PNAS.151103798

(-) Compounds

Molecule 1 - CHITINASE B
    ChainsA, B
    EngineeredYES
    Expression SystemESCHERICHIA COLI
    Expression System Taxid562
    Organism ScientificSERRATIA MARCESCENS
    Organism Taxid615

 Structural Features

(-) Chains, Units

  12
Asymmetric Unit AB
Biological Unit 1 (1x)A 
Biological Unit 2 (1x) B

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 23)

Asymmetric Unit (3, 23)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2NAG10Ligand/IonN-ACETYL-D-GLUCOSAMINE
3SO412Ligand/IonSULFATE ION
Biological Unit 1 (2, 13)
No.NameCountTypeFull Name
1GOL-1Ligand/IonGLYCEROL
2NAG5Ligand/IonN-ACETYL-D-GLUCOSAMINE
3SO48Ligand/IonSULFATE ION
Biological Unit 2 (3, 10)
No.NameCountTypeFull Name
1GOL1Ligand/IonGLYCEROL
2NAG5Ligand/IonN-ACETYL-D-GLUCOSAMINE
3SO44Ligand/IonSULFATE ION

(-) Sites  (15, 15)

Asymmetric Unit (15, 15)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASN A:55 , SER A:56 , PRO A:64 , LYS A:362 , THR A:436 , HOH A:2230BINDING SITE FOR RESIDUE SO4 A1504
02AC2SOFTWAREARG A:89 , PRO A:178 , GLN A:180 , HOH A:2232BINDING SITE FOR RESIDUE SO4 A1505
03AC3SOFTWAREARG A:420 , HOH A:2235 , LYS B:386BINDING SITE FOR RESIDUE SO4 A1506
04AC4SOFTWAREPRO A:281 , SER A:282 , HOH A:2140 , HOH A:2236BINDING SITE FOR RESIDUE SO4 A1507
05AC5SOFTWAREASN A:16 , GLN A:17 , ARG A:333BINDING SITE FOR RESIDUE SO4 A1508
06AC6SOFTWAREARG A:343 , GLN A:347 , ARG A:410BINDING SITE FOR RESIDUE SO4 A1509
07AC7SOFTWAREGLN A:147 , PHE A:190 , PHE A:191 , ARG A:194 , ASP B:489 , ALA B:491BINDING SITE FOR RESIDUE SO4 A1510
08AC8SOFTWAREPRO A:260 , PHE A:263 , SER A:264 , ARG A:439 , HOH A:2131BINDING SITE FOR RESIDUE SO4 A1511
09AC9SOFTWAREARG B:343 , GLN B:347 , ARG B:410BINDING SITE FOR RESIDUE SO4 B1505
10BC1SOFTWAREGLU A:383 , LYS A:386 , ARG B:420BINDING SITE FOR RESIDUE SO4 B1506
11BC2SOFTWAREPRO B:281 , SER B:282 , HOH B:2128BINDING SITE FOR RESIDUE SO4 B1507
12BC3SOFTWAREARG B:89 , PRO B:178BINDING SITE FOR RESIDUE SO4 B1508
13BC4SOFTWAREALA B:463 , GLN B:464 , GLY B:480 , HOH B:2202 , HOH B:2203 , HOH B:2204 , HOH B:2205BINDING SITE FOR RESIDUE GOL B1509
14BC5SOFTWAREPHE A:51 , TRP A:97 , TYR A:98 , ASP A:142 , GLN A:144 , TYR A:145 , PHE A:191 , MET A:212 , TYR A:214 , ASP A:215 , TRP A:220 , GLU A:221 , TYR A:292 , ARG A:294 , TRP A:403 , GLN A:407 , HOH A:2038 , HOH A:2063 , HOH A:2085 , HOH A:2216 , HOH A:2219 , HOH A:2220 , HOH A:2221 , HOH A:2222 , HOH A:2223 , HOH A:2224 , HOH A:2225 , HOH A:2226 , HOH A:2227 , HOH A:2228 , HOH A:2229 , GLY B:480 , TYR B:481BINDING SITE FOR CHAIN A OF POLYSACCHARIDE RESIDUES 1499 TO 1503
15BC6SOFTWAREGLY A:480 , TYR A:481 , PHE B:51 , TRP B:97 , TYR B:98 , ASP B:142 , GLN B:144 , TYR B:145 , PHE B:190 , PHE B:191 , MET B:212 , TYR B:214 , ASP B:215 , TRP B:220 , GLU B:221 , TYR B:292 , ARG B:294 , ASP B:316 , TRP B:403 , GLN B:407 , HOH B:2102 , HOH B:2197 , HOH B:2198 , HOH B:2199 , HOH B:2200BINDING SITE FOR CHAIN B OF POLYSACCHARIDE RESIDUES 1500 TO 1504

(-) SS Bonds  (2, 2)

Asymmetric Unit
No.Residues
1A:328 -A:331
2B:328 -B:331

(-) Cis Peptide Bonds  (11, 11)

Asymmetric Unit
No.Residues
1Ser A:50 -Phe A:51
2Gln A:144 -Tyr A:145
3Ser A:261 -Pro A:262
4Asp A:316 -Pro A:317
5Trp A:403 -His A:404
6Ser B:50 -Phe B:51
7Gln B:144 -Tyr B:145
8Ser B:261 -Pro B:262
9Asp B:316 -Pro B:317
10Trp B:403 -His B:404
11Gly B:480 -Tyr B:481

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1E6N)

(-) PROSITE Motifs  (1, 2)

Asymmetric Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHITINASE_18PS01095 Chitinases family 18 active site.CHIB_SERMA136-144
 
  2A:136-143
B:136-143
Biological Unit 1 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHITINASE_18PS01095 Chitinases family 18 active site.CHIB_SERMA136-144
 
  1A:136-143
-
Biological Unit 2 (1, 1)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1CHITINASE_18PS01095 Chitinases family 18 active site.CHIB_SERMA136-144
 
  1-
B:136-143

(-) Exons   (0, 0)

(no "Exon" information available for 1E6N)

(-) Sequences/Alignments

Asymmetric 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:496
 aligned with CHIB_SERMA | P11797 from UniProtKB/Swiss-Prot  Length:499

    Alignment length:496
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492      
           CHIB_SERMA     3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPAARTKFAQSCVRIMKDYGFDGVDIDWEYPQAAEVDGFIAALQEIRTLLNQQTIADGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKITNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPNADYWLVGCDECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRL 498
               SCOP domains d1e6na2 A:3-291,A:380-446 Chitinase B, catalytic domain                                                                                                                                                                                                                                          d1e6na3 A:292-379 Chitinase B                                                           d1e6na2 A:3-291,A:380-446 Chitinase B, catalytic domain            d1e6na1 A:447-498 Chitinase B, C-terminal domain     SCOP domains
               CATH domains 1e6nA01 A:3-290,A:381-448 Glycosidases                                                                                                                                                                                                                                                          1e6nA02 A:291-380  [code=3.10.50.10, no name defined]                                     1e6nA01 A:3-290,A:381-448 Glycosidases                              1e6nA03 A:449-498                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee.hhhhhh............hhhhhhhhhhhhh.eeeee................hhhhhhhhhhhhhhhhhhh...eeeeeeehhhhhh....hhhhhhhhh.hhhhhhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhhhhhhhhhhhhhh.......eeeeeee.hhhhhhhhhhhhhhhhh...eeeee............................hhhhhh....hhhhhhhhh......hhhhhhhhhhh....hhh.eeeeee.eeeeee..............................hhhhhhh....eeehhhhhhhhh....eeeeee....eeeeee....eeee..hhhhhhhhhhhhhhh...eeeeehhhhh...hhhhhhhhhhhhh...................hhhhh..................eeee..eeeee..............eeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------CHITINASE------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e6n A   3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPASRAKFAQSCVRIMKDYGFDGVDIDWQYPQAAEVDGFIAALQEIRTLLNQQTITDGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKVTNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPSTDYWLVGCEECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRV 498
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492      

Chain A from PDB  Type:PROTEIN  Length:496
 aligned with Q54276_SERMA | Q54276 from UniProtKB/TrEMBL  Length:499

    Alignment length:496
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492      
         Q54276_SERMA     3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPASRAKFAQSCVRIMKDYGFDGVDIDWEYPQAAEVDGFIAALQEIRTLLNQQTITDGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKVTNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPSTDYWLVGCEECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRV 498
               SCOP domains d1e6na2 A:3-291,A:380-446 Chitinase B, catalytic domain                                                                                                                                                                                                                                          d1e6na3 A:292-379 Chitinase B                                                           d1e6na2 A:3-291,A:380-446 Chitinase B, catalytic domain            d1e6na1 A:447-498 Chitinase B, C-terminal domain     SCOP domains
               CATH domains 1e6nA01 A:3-290,A:381-448 Glycosidases                                                                                                                                                                                                                                                          1e6nA02 A:291-380  [code=3.10.50.10, no name defined]                                     1e6nA01 A:3-290,A:381-448 Glycosidases                              1e6nA03 A:449-498                                  CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee.hhhhhh............hhhhhhhhhhhhh.eeeee................hhhhhhhhhhhhhhhhhhh...eeeeeeehhhhhh....hhhhhhhhh.hhhhhhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhhhhhhhhhhhhhh.......eeeeeee.hhhhhhhhhhhhhhhhh...eeeee............................hhhhhh....hhhhhhhhh......hhhhhhhhhhh....hhh.eeeeee.eeeeee..............................hhhhhhh....eeehhhhhhhhh....eeeeee....eeeeee....eeee..hhhhhhhhhhhhhhh...eeeeehhhhh...hhhhhhhhhhhhh...................hhhhh..................eeee..eeeee..............eeeeee. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e6n A   3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPASRAKFAQSCVRIMKDYGFDGVDIDWQYPQAAEVDGFIAALQEIRTLLNQQTITDGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKVTNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPSTDYWLVGCEECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRV 498
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492      

Chain B from PDB  Type:PROTEIN  Length:497
 aligned with CHIB_SERMA | P11797 from UniProtKB/Swiss-Prot  Length:499

    Alignment length:497
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       
           CHIB_SERMA     3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPAARTKFAQSCVRIMKDYGFDGVDIDWEYPQAAEVDGFIAALQEIRTLLNQQTIADGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKITNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPNADYWLVGCDECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRLA 499
               SCOP domains d1e6nb2 B:3-291,B:380-446 Chitinase B, catalytic domain                                                                                                                                                                                                                                          d1e6nb3 B:292-379 Chitinase B                                                           d1e6nb2 B:3-291,B:380-446 Chitinase B, catalytic domain            d1e6nb1 B:447-499 Chitinase B, C-terminal domain      SCOP domains
               CATH domains 1e6nB01 B:3-290,B:381-448 Glycosidases                                                                                                                                                                                                                                                          1e6nB02 B:291-380  [code=3.10.50.10, no name defined]                                     1e6nB01 B:3-290,B:381-448 Glycosidases                              1e6nB03 B:449-499                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee.hhhhhhh...........hhhhhhhhhhhhh.eeeee................hhhhhhhhhhhhhhhhhhh...eeeeeeehhhhhh....hhhhhhhhh.hhhhhhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhhhhhhhhhhhhhhh......eeeeeee.hhhhhhhhhhhhhhhhh...eeeee............................hhhhhh....hhhhhhhhh......hhhhhhhhhhh....hhh.eeeeee.eeeee.....hhhhh.....................hhhhhhhh...eeehhhhhhhhh.....eeeee....eeeeee....eeee....hhhhhhhhhhhhh...eeeeehhhhh...hhhhhhhhhhhhh..........................................eeee..eeeee..............eeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------CHITINASE------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e6n B   3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPASRAKFAQSCVRIMKDYGFDGVDIDWQYPQAAEVDGFIAALQEIRTLLNQQTITDGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKVTNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPSTDYWLVGCEECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRVA 499
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       

Chain B from PDB  Type:PROTEIN  Length:497
 aligned with Q54276_SERMA | Q54276 from UniProtKB/TrEMBL  Length:499

    Alignment length:497
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       
         Q54276_SERMA     3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPASRAKFAQSCVRIMKDYGFDGVDIDWEYPQAAEVDGFIAALQEIRTLLNQQTITDGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKVTNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPSTDYWLVGCEECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRVA 499
               SCOP domains d1e6nb2 B:3-291,B:380-446 Chitinase B, catalytic domain                                                                                                                                                                                                                                          d1e6nb3 B:292-379 Chitinase B                                                           d1e6nb2 B:3-291,B:380-446 Chitinase B, catalytic domain            d1e6nb1 B:447-499 Chitinase B, C-terminal domain      SCOP domains
               CATH domains 1e6nB01 B:3-290,B:381-448 Glycosidases                                                                                                                                                                                                                                                          1e6nB02 B:291-380  [code=3.10.50.10, no name defined]                                     1e6nB01 B:3-290,B:381-448 Glycosidases                              1e6nB03 B:449-499                                   CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee.hhhhhhh...........hhhhhhhhhhhhh.eeeee................hhhhhhhhhhhhhhhhhhh...eeeeeeehhhhhh....hhhhhhhhh.hhhhhhhhhhhhhhhhhhhh..eeeee....hhhhhhhhhhhhhhhhhhhhhhhhhhh......eeeeeee.hhhhhhhhhhhhhhhhh...eeeee............................hhhhhh....hhhhhhhhh......hhhhhhhhhhh....hhh.eeeeee.eeeee.....hhhhh.....................hhhhhhhh...eeehhhhhhhhh.....eeeee....eeeeee....eeee....hhhhhhhhhhhhh...eeeeehhhhh...hhhhhhhhhhhhh..........................................eeee..eeeee..............eeeeee.. Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1e6n B   3 TRKAVIGYYFIPTNQINNYTETDTSVVPFPVSNITPAKAKQLTHINFSFLDINSNLECAWDPATNDAKARDVVNRLTALKAHNPSLRIMFSIGGWYYSNDLGVSHANYVNAVKTPASRAKFAQSCVRIMKDYGFDGVDIDWQYPQAAEVDGFIAALQEIRTLLNQQTITDGRQALPYQLTIAGAGGAFFLSRYYSKLAQIVAPLDYINLMTYDLAGPWEKVTNHQAALFGDAAGPTFYNALREANLGWSWEELTRAFPSPFSLTVDAAVQQHLMMEGVPSAKIVMGVPFYGRAFKGVSGGNGGQYSSHSTPGEDPYPSTDYWLVGCEECVRDKDPRIASYRQLEQMLQGNYGYQRLWNDKTKTPYLYHAQNGLFVTYDDAESFKYKAKYIKQQQLGGVMFWHLGQDNRNGDLLAALDRYFNAADYDDSQLDMGTGLRYTGVGPGNLPIMTAPAYVPGTTYAQGALVSYQGYVWQTKWGYITSAPGSDSAWLKVGRVA 499
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422       432       442       452       462       472       482       492       

   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  (3, 6)

Asymmetric Unit

(-) CATH Domains  (3, 6)

Asymmetric Unit
(-)
Class: Alpha Beta (26913)
(-)
Class: Mainly Beta (13760)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 1E6N)

(-) Gene Ontology  (10, 19)

Asymmetric Unit(hide GO term definitions)
Chain A,B   (Q54276_SERMA | Q54276)
molecular function
    GO:0030246    carbohydrate binding    Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
    GO:0004568    chitinase activity    Catalysis of the hydrolysis of (1->4)-beta linkages of N-acetyl-D-glucosamine (GlcNAc) polymers of chitin and chitodextrins.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
    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.
    GO:0006032    chitin catabolic process    The chemical reactions and pathways resulting in the breakdown of chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

Chain A,B   (CHIB_SERMA | P11797)
molecular function
    GO:0030246    carbohydrate binding    Interacting selectively and non-covalently with any carbohydrate, which includes monosaccharides, oligosaccharides and polysaccharides as well as substances derived from monosaccharides by reduction of the carbonyl group (alditols), by oxidation of one or more hydroxy groups to afford the corresponding aldehydes, ketones, or carboxylic acids, or by replacement of one or more hydroxy group(s) by a hydrogen atom. Cyclitols are generally not regarded as carbohydrates.
    GO:0004568    chitinase activity    Catalysis of the hydrolysis of (1->4)-beta linkages of N-acetyl-D-glucosamine (GlcNAc) polymers of chitin and chitodextrins.
    GO:0016787    hydrolase activity    Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
    GO:0016798    hydrolase activity, acting on glycosyl bonds    Catalysis of the hydrolysis of any glycosyl bond.
    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.
    GO:0006032    chitin catabolic process    The chemical reactions and pathways resulting in the breakdown of chitin, a linear polysaccharide consisting of beta-(1->4)-linked N-acetyl-D-glucosamine residues.
    GO:0008152    metabolic process    The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.
    GO:0000272    polysaccharide catabolic process    The chemical reactions and pathways resulting in the breakdown of a polysaccharide, a polymer of many (typically more than 10) monosaccharide residues linked glycosidically.
cellular component
    GO:0005576    extracellular region    The space external to the outermost structure of a cell. For cells without external protective or external encapsulating structures this refers to space outside of the plasma membrane. This term covers the host cell environment outside an intracellular parasite.

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  Q54276_SERMA | Q54276
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 Related Entries

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

UniProtKB/Swiss-Prot
        CHIB_SERMA | P117971goi 1h0g 1h0i 1o6i 1ogb 1ogg 3wd0 3wd1 3wd2 3wd3 3wd4 4z2g 4z2h 4z2i 4z2j 4z2k 4z2l
        Q54276_SERMA | Q542761goi 1ogb
UniProtKB/TrEMBL
        Q54276_SERMA | Q542761e15 1e6p 1e6r 1e6z 1gpf 1ur8 1ur9 1w1p 1w1t 1w1v 1w1y

(-) Related Entries Specified in the PDB File

1ctn LYASE (OXO-ACID)
1e15 CHITINASE B FROM SERRATIA MARCESCENS
1e6p CHITINASE B FROM SERRATIA MARCESCENS INACTIVE MUTANT E144Q
1e6r CHITINASE B FROM SERRATIA MARCESCENS WILDTYPE IN COMPLEX WITH INHIBITOR ALLOSAMIDIN