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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 :  08 May 00  (Deposition) - 14 Feb 01  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Synthetase, Sialic Acid, Cdp, Acylneuraminate, 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
    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  (2, 12)

Asymmetric/Biological Unit (2, 12)
No.NameCountTypeFull Name
1CDP2Ligand/IonCYTIDINE-5'-DIPHOSPHATE
2MSE10Mod. Amino AcidSELENOMETHIONINE

(-) Sites  (2, 2)

Asymmetric Unit (2, 2)
No.NameEvidenceResiduesDescription
1AC1SOFTWARELEU A:10 , ALA A:11 , ARG A:12 , SER A:15 , LYS A:21 , ASN A:22 , ARG A:71 , ALA A:80 , SER A:82 , PRO A:105 , THR A:106 , ASP A:209 , ILE A:210 , ASP A:211 , HOH A:1010 , HOH A:1054 , HOH A:1091 , HOH A:1242 , HOH A:1243BINDING SITE FOR RESIDUE CDP A 1001
2AC2SOFTWARELEU B:10 , ALA B:11 , ARG B:12 , SER B:15 , LYS B:16 , LYS B:21 , ASN B:22 , ARG B:71 , ALA B:80 , SER B:82 , PRO B:105 , THR B:106 , ASP B:209 , ILE B:210 , ASP B:211 , HOH B:2018 , HOH B:2055 , HOH B:2076 , HOH B:2101 , HOH B:2173 , HOH B:2208 , HOH B:2209BINDING SITE FOR RESIDUE CDP B 2001

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Ala A:195 -Pro A:196
2Ala B:195 -Pro B:196

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (0, 0)

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

(-) Exons   (0, 0)

(no "Exon" information available for 1EYR)

(-) 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:225
 aligned with NEUA_NEIME | P0A0Z8 from UniProtKB/Swiss-Prot  Length:228

    Alignment length:225
                                    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 MEKQNIAVILARQNSKGLPLKNLRKMNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAELASDTASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPMEHHPLKTLLQINNGEYAPMRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYIMSHQDSIDIDTELDLQQAENILNH 225
               SCOP domains d1eyra_ A: CMP acylneuraminate synthetase                                                                                                                                                                                         SCOP domains
               CATH domains -1eyrA00 A:2-225 Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A                                                                                                                                                     CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee.........hhhh.ee..eehhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh..eeee.hhhhhh...hhhhhhhhhhhhhh...eeeee........hhhhhhhhhh.........eeeeee........eee.....eee..hhhhhh.hhhhh..eeeeeeeeeeeehhhhhhhh.......eeee..........hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1eyr A   1 mEKQNIAVILARQNSKGLPLKNLRKmNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAELASDTASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPmEHHPLKTLLQINNGEYAPmRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYImSHQDSIDIDTELDLQQAENILNH 225
                            |       10        20     |  30        40        50        60        70        80        90       100       110       120       130     | 140       150    |  160       170       180       190       200 |     210       220     
                            |                       26-MSE                                                                                                       136-MSE            155-MSE                                        202-MSE                   
                            1-MSE                                                                                                                                                                                                                            


Chain B from PDB  Type:PROTEIN  Length:221
 aligned with NEUA_NEIME | P0A0Z8 from UniProtKB/Swiss-Prot  Length:228

    Alignment length:223
                                    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 MEKQNIAVILARQNSKGLPLKNLRKMNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAELASDTASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPMEHHPLKTLLQINNGEYAPMRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYIMSHQDSIDIDTELDLQQAENIL 223
               SCOP domains d1eyrb_ B: CMP acylneuraminate synthetase                                                                                                                                                                                       SCOP domains
               CATH domains -1eyrB00 B:2-223 Spore Coat Polysaccharide Biosynthesis Protein SpsA; Chain A                                                                                                                                                   CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...eeeeeee.........hhhh.ee..eehhhhhhhhhhhhh...eeeeee.hhhhhhhhhhh..eeee.hhhhhh...hhhhhhhhhhhhhh...eeeee........hhhhhhhhhh.........eeeeee........eee..--.eee..hhhhhhhhhhhh..eeeeeeeeeeeehhhhhhhh.......eeee..........hhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1eyr B   1 mEKQNIAVILARQNSKGLPLKNLRKmNGISLLGHTINAAISSKCFDRIIVSTDGGLIAEEAKNFGVEVVLRPAELASDTASSISGVIHALETIGSNSGTVTLLQPTSPLRTGAHIREAFSLFDEKIKGSVVSACPmEHHPLKTLLQIN--EYAPmRHLSDLEQPRQQLPQAFRPNGAIYINDTASLIANNCFFIAPTKLYImSHQDSIDIDTELDLQQAENIL 223
                            |       10        20     |  30        40        50        60        70        80        90       100       110       120       130     | 140       | -|   |  160       170       180       190       200 |     210       220   
                            1-MSE                   26-MSE                                                                                                       136-MSE     148  |   |                                            202-MSE                 
                                                                                                                                                                                151   |                                                                    
                                                                                                                                                                                    155-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 1EYR)

(-) 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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 Related Entries

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

UniProtKB/Swiss-Prot
        NEUA_NEIME | P0A0Z8: 1ezi

(-) Related Entries Specified in the PDB File

1ezi CMPANS WITHOUT CDP