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(-) Description

Title :  STRUCTURE OF A SIALIC ACID ACTIVATING SYNTHETASE, CMP ACYLNEURAMINATE SYNTHETASE IN THE PRESENCE AND ABSENCE OF CDP
 
Authors :  S. C. Mosimann, M. Gilbert, D. Dombrowski, W. Wakarchuk, N. C. Strynadka
Date :  11 May 00  (Deposition) - 14 Feb 01  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.00
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Homodimer, Alpha-Beta-Alpha, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  S. C. Mosimann, M. Gilbert, D. Dombroswki, R. To, W. Wakarchuk, N. C. Strynadka
Structure Of A Sialic Acid-Activating Synthetase, Cmp-Acylneuraminate Synthetase In The Presence And Absence Of Cdp.
J. Biol. Chem. V. 276 8190 2001
PubMed-ID: 11113120  |  Reference-DOI: 10.1074/JBC.M007235200
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CMP-N-ACETYLNEURAMINIC ACID SYNTHETASE
    Chains: A, B
    EC Number: 2.7.7.43
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Taxid: 562
    Organism Scientific: NEISSERIA MENINGITIDIS
    Organism Taxid: 487
    Synonym: ACYLNEURAMINATE CYTIDYLYLTRANSFERASE

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 10)

Asymmetric/Biological Unit (1, 10)
No.NameCountTypeFull Name
1MSE10Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (0, 0)

(no "Site" information available for 1EZI)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1EZI)

(-) Cis Peptide Bonds  (1, 1)

Asymmetric/Biological Unit
No.Residues
1Ala B:195 -Pro B:196

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1EZI)

(-) Exons   (0, 0)

(no "Exon" information available for 1EZI)

(-) 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:216
 aligned with NEUA_NEIME | P0A0Z8 from UniProtKB/Swiss-Prot  Length:228

    Alignment length:224
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220    
           NEUA_NEIME     1 MEKQNIAVILARQNSKGLPLKNLRKMNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAELASDTASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPMEHHPLKTLLQINNGEYAPMRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYIMSHQDSIDIDTELDLQQAENILN 224
               SCOP domains d1ezia_ A: CMP acylneuraminate synthetase                                                                                                                                                                                        SCOP domains
               CATH domains -1eziA00 A:2-224 Spore Coat Polysaccharide Biosynthesis Protein SpsA; Cha      in A                                                                                                                                              CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee..............ee..eehhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh..eeee...------hhhhhhhhhhhhhhh...eeeee........hhhhhhhhhh.........eeeeee........eee..--.eee..hhhhhhhhhhhh..eeeeeeeeeeeehhhhhhhh.......eeee..hhhhh...hhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1ezi A   1 mEKQNIAVILARQNSKGLPLKNLRKmNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPA------ASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPmEHHPLKTLLQIN--EYAPmRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYImSHQDSIDIDTELDLQQAENILN 224
                            |       10        20     |  30        40        50        60        70  |     80        90       100       110       120       130     | 140       | -|   |  160       170       180       190       200 |     210       220    
                            |                       26-MSE                                         73     80                                                     136-MSE     148  |   |                                            202-MSE                  
                            1-MSE                                                                                                                                               151   |                                                                     
                                                                                                                                                                                    155-MSE                                                                 


Chain B from PDB  Type:PROTEIN  Length:213
 aligned with NEUA_NEIME | P0A0Z8 from UniProtKB/Swiss-Prot  Length:228

    Alignment length:222
                                    10        20        30        40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220  
           NEUA_NEIME     1 MEKQNIAVILARQNSKGLPLKNLRKMNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAELASDTASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPMEHHPLKTLLQINNGEYAPMRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYIMSHQDSIDIDTELDLQQAENI 222
               SCOP domains d1ezib_ B: CMP    acylneuraminate synthetase                                                                                                                                                                                   SCOP domains
               CATH domains -1eziB00 B:2-2   22 Spore Coat Polysaccharide Biosynthesis Protein SpsA; C      hain A                                                                                                                                         CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ...eeeeeee....---..hhhh.ee..eehhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh..eeee....------hhhhhhhhhhhhhh...eeeee........hhhhhhhhhh.........eeeeee........eeeee..eeee..hhhhhhhhhhhh..eeeeeeeeeeeehhhhhhhh.......eeee..........hhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Transcript
                 1ezi B   1 mEKQNIAVILARQN---LPLKNLRKmNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAE------SSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPmEHHPLKTLLQINNGEYAPmRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYImSHQDSIDIDTELDLQQAENI 222
                            |       10   |   |20     |  30        40        50        60        70   |     -|       90       100       110       120       130     | 140       150    |  160       170       180       190       200 |     210       220  
                            1-MSE       14  18      26-MSE                                          74     81                                                    136-MSE            155-MSE                                        202-MSE
   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  (1, 2)

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

(-) CATH Domains  (1, 2)

Asymmetric/Biological Unit
(-)
Class: Alpha Beta (26913)

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (NEUA_NEIME | P0A0Z8)
molecular function
    GO:0008781    N-acylneuraminate cytidylyltransferase activity    Catalysis of the reaction: CTP + N-acylneuraminate = diphosphate + CMP-N-acylneuraminate.
    GO:0016779    nucleotidyltransferase activity    Catalysis of the transfer of a nucleotidyl group to a reactant.
    GO:0016740    transferase activity    Catalysis of the transfer of a group, e.g. a methyl group, glycosyl group, acyl group, phosphorus-containing, or other groups, from one compound (generally regarded as the donor) to another compound (generally regarded as the acceptor). Transferase is the systematic name for any enzyme of EC class 2.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.

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  Cis Peptide Bonds
    Ala B:195 - Pro B:196   [ RasMol ]  
 

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 Related Entries

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

UniProtKB/Swiss-Prot
        NEUA_NEIME | P0A0Z8: 1eyr

(-) Related Entries Specified in the PDB File

1eyr 1EYR CONTAINS SAME PROTEIN IN COMPLEX WITH CDP