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(-) Description

Title :  CRYSTAL STRUCTURE OF O-ACETYLSERINE SULFHYDRYLASE FROM HAEMOPHILUS INFLUENZAE IN COMPLEX WITH PRE-REACTIVE O-ACETYL SERINE, ALPHA-AMINOACRYLATE REACTION INTERMEDIATE AND PEPTIDE INHIBITOR AT THE RESOLUTION OF 2.25A
 
Authors :  M. K. Ekka, A. K. Singh, A. Kaushik, S. Kumaran
Date :  15 May 15  (Deposition) - 10 Jun 15  (Release) - 10 Jun 15  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.03
Chains :  Asym./Biol. Unit :  B,X
Keywords :  Amino Acid Biosynthesis, Cysteine Biosynthesis, Pyridoxial Phosphate, Transferase, Transferase-Transferase Inhibitor Complex (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  M. K. Ekka, A. K. Singh, A. Kaushik, S. Kumaran
Crystal Structure Of O-Acetylserine Sulfhydrylase From Haemophilus Inuen-Zae In Complex With Pre-Reactive O-Acetyl Serine And Peptide Inhibitor
To Be Published
PubMed: search

(-) Compounds

Molecule 1 - CYSTEINE SYNTHASE
    Atcc: 51907
    Chains: X
    EC Number: 2.5.1.47
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: CYSK, HI_1103
    Organism Scientific: HAEMOPHILUS INFLUENZAE KW20
    Organism Taxid: 71421
    Strain: KW20
    Synonym: CSASE,O-ACETYLSERINE (THIOL)-LYASE,OAS-TL,O-ACETYLSERINE SULFHYDRYLASE
 
Molecule 2 - C-TERMINAL PEPTIDE FROM SERINE ACETYLTRANSFERASE
    Chains: B
    Engineered: YES
    Organism Scientific: SALMONELLA TYPHIMURIUM LT2
    Organism Taxid: 99287
    Synonym: SAT,SERINE TRANSACETYLASE
    Synthetic: YES

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : BX

Summary Information (see also Sequences/Alignments below)

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

Asymmetric/Biological Unit (2, 2)
No.NameCountTypeFull Name
1OAS1Ligand/IonO-ACETYLSERINE
2PLP1Ligand/IonPYRIDOXAL-5'-PHOSPHATE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARETHR X:69 , SER X:70 , ASN X:72 , THR X:73 , GLN X:143 , PHE X:144 , GLY X:177 , GLY X:228 , PLP X:402 , HOH X:537binding site for residue OAS X 401
2AC2SOFTWARELYS X:42 , ASN X:72 , GLY X:175 , VAL X:176 , GLY X:177 , THR X:178 , GLY X:179 , GLY X:180 , SER X:181 , GLN X:227 , GLY X:228 , ILE X:229 , SER X:272 , PRO X:299 , SER X:300 , TYR X:305 , OAS X:401 , HOH X:513 , HOH X:531 , HOH X:535 , HOH X:556binding site for residue PLP X 402

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 4ZU6)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 4ZU6)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 4ZU6)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 4ZU6)

(-) Exons   (0, 0)

(no "Exon" information available for 4ZU6)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
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SAPs(SNPs) PROSITE motifs Exons
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Chain B from PDB  Type:PROTEIN  Length:4
                                    
               SCOP domains ---- SCOP domains
               CATH domains ---- CATH domains
               Pfam domains ---- Pfam domains
         Sec.struct. author .... Sec.struct. author
                 SAPs(SNPs) ---- SAPs(SNPs)
                    PROSITE ---- PROSITE
                 Transcript ---- Transcript
                 4zu6 B 267 FEYG 270


Chain X from PDB  Type:PROTEIN  Length:309
                                                                                                                                                                                                                                                                                                                                                     
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .....hhhhhh....eee.........eeeee...hhhhhhhhhhhhhhhhhhhhh.......eeeee..hhhhhhhhhhhhhhh..eeeeee...hhhhhhhhhhh..eeeeehhhhh..hhhhhhhhh.....eee......hhhhhhhhhhhhhhhhhhh...eeeeeee...hhhhhhhhhhhhhh.....eeeeeee...hhhhhhhh.......................hhhhh.eeeeehhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhhhhhh..eeeeee..hhhhhh..... Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 4zu6 X   1 MAIYADNSYSIGNTPLVRLKHFGHNGNVVVKIEGRNPSYSVKCRIGANMVWQAEKDGTLTKGKEIVDATSGNTGIALAYVAAARGYKITLTMPETMSLERKRLLCGLGVNLVLTEGAKGGAIAKAEEIVASDPSRYVMLKQFENPANPQIHRETTGPEIWKDTDGKVDVVVAGVGTGGSITGISRAIKLDFGKQITSVAVEPVESPVISQTLAGEEVKPGPHKIQGIGAGFIPKNLDLSIIDRVETVDSDTALATARRLMAEEGILAGISSGAAVAAADRLAKLPEFADKLIVVILPSASERYLSTALF 311
                                    10        20        30        40        50        60        70        80        90       100       110       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302         
                                                                                                                                                119|                                                                                                                                                                                             
                                                                                                                                                 122
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  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (0, 0)

(no "SCOP Domain" information available for 4ZU6)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 4ZU6)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 4ZU6)

(-) Gene Ontology  (12, 17)

Asymmetric/Biological Unit(hide GO term definitions)

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 Related Entries

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

UniProtKB/Swiss-Prot
        CYSE_SALTY | P29847: 4li3 4nu8 4zu1 5dbe
        CYSK_HAEIN | P45040: 1y7l 3iqg 3iqh 3iqi 4ho1 4li3 4nu8 4ore 4zu1 5dbe 5dbh

(-) Related Entries Specified in the PDB File

4zu1 4zu8