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(-) Description

Title :  CRYSTAL STRUCTURE OF A MAMMALIAN CTP:PHOSPHOCHOLINE CYTIDYLYLTRANSFERASE WITH CDP-CHOLINE
 
Authors :  J. Lee, M. Paetzel, R. B. Cornell
Date :  26 May 09  (Deposition) - 22 Sep 09  (Release) - 13 Jul 11  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.20
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Cytidylyltransferase, Rossmann Fold, Phospholipid Synthesis, Phosphatidylcholine, Phosphocholine, Ctp, Cdp-Choline, Amphitropic Protein, Lipid Metabolism, Nucleotidyltransferase, Phosphoprotein, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  J. Lee, J. E. Johnson, Z. Ding, M. Paetzel, R. B. Cornell
Crystal Structure Of A Mammalian Ctp: Phosphocholine Cytidylyltransferase Catalytic Domain Reveals Novel Active Site Residues Within A Highly Conserved Nucleotidyl-Transferase Fold
J. Biol. Chem. V. 284 33535 2009
PubMed-ID: 19783652  |  Reference-DOI: 10.1074/JBC.M109.053363

(-) Compounds

Molecule 1 - CHOLINE-PHOSPHATE CYTIDYLYLTRANSFERASE A
    ChainsA, B
    EC Number2.7.7.15
    EngineeredYES
    Expression SystemTRICHOPLUSIA NI
    Expression System PlasmidPVL1393
    Expression System Taxid7111
    Expression System Vector TypeBACULOVIRUS
    FragmentDOMAIN N AND C
    GeneCTPCT, PCYT1, PCYT1A
    MutationYES
    Organism CommonRAT
    Organism ScientificRATTUS NORVEGICUS
    Organism Taxid10116

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 10)

Asymmetric/Biological Unit (3, 10)
No.NameCountTypeFull Name
1CDC2Ligand/Ion[2-CYTIDYLATE-O'-PHOSPHONYLOXYL]-ETHYL-TRIMETHYL-AMMONIUM
2FMT7Ligand/IonFORMIC ACID
3GOL1Ligand/IonGLYCEROL

(-) Sites  (10, 10)

Asymmetric Unit (10, 10)
No.NameEvidenceResiduesDescription
01AC1SOFTWAREASP A:82 , GLY A:83 , ILE A:84 , PHE A:85 , HIS A:89 , GLY A:91 , HIS A:92 , ALA A:95 , CYS A:113 , LYS A:122 , PRO A:150 , TRP A:151 , HIS A:168 , ASP A:169 , TYR A:173 , TYR A:182 , GLN A:195 , ARG A:196 , THR A:197 , ILE A:200 , HOH A:401 , HOH A:403 , HOH A:404 , HOH A:405 , HOH A:406BINDING SITE FOR RESIDUE CDC A 237
02AC2SOFTWAREASP A:170 , LYS A:186 , PRO A:193 , HOH A:502 , HOH A:515 , HOH A:517 , ALA B:159 , HOH B:447BINDING SITE FOR RESIDUE GOL A 238
03AC3SOFTWAREGLU A:198 , GLY A:199 , HOH A:416 , GLU B:131BINDING SITE FOR RESIDUE FMT A 239
04AC4SOFTWAREARG A:196 , HOH A:415 , VAL B:60BINDING SITE FOR RESIDUE FMT A 240
05AC5SOFTWAREARG A:42 , GLN A:43 , GLU A:187 , ASN B:101BINDING SITE FOR RESIDUE FMT A 241
06AC6SOFTWAREGLU A:198 , HOH A:499BINDING SITE FOR RESIDUE FMT A 242
07AC7SOFTWAREASP B:82 , GLY B:83 , ILE B:84 , PHE B:85 , HIS B:89 , GLY B:91 , HIS B:92 , ALA B:95 , CYS B:113 , LYS B:122 , PRO B:150 , TRP B:151 , HIS B:168 , ASP B:169 , TYR B:173 , TYR B:182 , GLN B:195 , ARG B:196 , THR B:197 , ILE B:200 , HOH B:401 , HOH B:403 , HOH B:404 , HOH B:405 , HOH B:406BINDING SITE FOR RESIDUE CDC B 237
08AC8SOFTWARESER B:178 , ASP B:179BINDING SITE FOR RESIDUE FMT B 238
09AC9SOFTWAREPHE B:47 , SER B:48 , ASP B:49 , VAL B:146 , ARG B:147BINDING SITE FOR RESIDUE FMT B 239
10BC1SOFTWAREASN B:128 , ASN B:130BINDING SITE FOR RESIDUE FMT B 240

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 3HL4)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 3HL4)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 3HL4)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 3HL4)

(-) Exons   (5, 10)

Asymmetric/Biological Unit (5, 10)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.1ENSRNOT000000024031ENSRNOE00000016700chr11:70173684-7017359491PCY1A_RAT-00--
1.2ENSRNOT000000024032ENSRNOE00000016703chr11:70154940-70154814127PCY1A_RAT1-39390--
1.3ENSRNOT000000024033ENSRNOE00000016704chr11:70151153-70151054100PCY1A_RAT40-73342A:40-73
B:40-73
34
34
1.4ENSRNOT000000024034ENSRNOE00000016705chr11:70143003-70142887117PCY1A_RAT73-112402A:73-112
B:73-112
40
40
1.5ENSRNOT000000024035ENSRNOE00000016706chr11:70141771-70141620152PCY1A_RAT112-162512A:112-162
B:112-162
51
51
1.6ENSRNOT000000024036ENSRNOE00000016707chr11:70138993-7013891579PCY1A_RAT163-189272A:163-189
B:163-189
27
27
1.7ENSRNOT000000024037ENSRNOE00000016708chr11:70138480-70138338143PCY1A_RAT189-236482A:189-215
B:189-216
27
28
1.8ENSRNOT000000024038ENSRNOE00000016713chr11:70135332-70135144189PCY1A_RAT237-299630--
1.9ENSRNOT000000024039ENSRNOE00000016717chr11:70133875-701305743302PCY1A_RAT300-367680--

(-) 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:176
 aligned with PCY1A_RAT | P19836 from UniProtKB/Swiss-Prot  Length:367

    Alignment length:176
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209      
            PCY1A_RAT    40 GLRQPAPFSDEIEVDFSKPYVRVTMEEACRGTPCERPVRVYADGIFDLFHSGHARALMQAKNLFPNTYLIVGVCSDELTHNFKGFTVMNENERYDAVQHCRYVDEVVRNAPWTLTPEFLAEHRIDFVAHDDIPYSSAGSDDVYKHIKEAGMFAPTQRTEGISTSDIITRIVRDYDV 215
               SCOP domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhh...........hhhhhhhh......eeeeeee.....hhhhhhhhhhhhh....eeeeeee.hhhhhhhhh.....hhhhhhhhhhh.....eee.......hhhhhhhh...eeeee............hhhhhhh..eeee......hhhhhhhhhhhhhhh Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.3  PDB: A:40-73            --------------------------------------Exon 1.5  PDB: A:112-162 UniProt: 112-162          Exon 1.6  PDB: A:163-189   -------------------------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------Exon 1.4  PDB: A:73-112 UniProt: 73-112 ----------------------------------------------------------------------------Exon 1.7  PDB: A:189-215    Transcript 1 (2)
                 3hl4 A  40 GLRQPAPFSDEIEVDFSKPYVRVTMEEACRGTPCERPVRVYADGIFDLFHSGHARALMQAKNLFPNTYLIVGVCSDELTHNFKGFTVMNENERYDAVQHCRYVDEVVRNAPWTLTPEFLAEHRIDFVAHDDIPYSSAGSDDVYKHIKEAGMFAPTQRTEGISTSDIITRIVRDYDV 215
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209      

Chain B from PDB  Type:PROTEIN  Length:177
 aligned with PCY1A_RAT | P19836 from UniProtKB/Swiss-Prot  Length:367

    Alignment length:177
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       
            PCY1A_RAT    40 GLRQPAPFSDEIEVDFSKPYVRVTMEEACRGTPCERPVRVYADGIFDLFHSGHARALMQAKNLFPNTYLIVGVCSDELTHNFKGFTVMNENERYDAVQHCRYVDEVVRNAPWTLTPEFLAEHRIDFVAHDDIPYSSAGSDDVYKHIKEAGMFAPTQRTEGISTSDIITRIVRDYDVY 216
               SCOP domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SCOP domains
               CATH domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- CATH domains
               Pfam domains --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .......hhhhh...........hhhhhhhh......eeeeeee.....hhhhhhhhhhhhh....eeeeeee.hhhhhhhhh.....hhhhhhhhhhh.....eee.......hhhhhhhh...eeeee............hhhhhhh..eeee......hhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) Exon 1.3  PDB: B:40-73            --------------------------------------Exon 1.5  PDB: B:112-162 UniProt: 112-162          Exon 1.6  PDB: B:163-189   --------------------------- Transcript 1 (1)
           Transcript 1 (2) ---------------------------------Exon 1.4  PDB: B:73-112 UniProt: 73-112 ----------------------------------------------------------------------------Exon 1.7  PDB: B:189-216     Transcript 1 (2)
                 3hl4 B  40 GLRQPAPFSDEIEVDFSKPYVRVTMEEACRGTPCERPVRVYADGIFDLFHSGHARALMQAKNLFPNTYLIVGVCSDELTHNFKGFTVMNENERYDAVQHCRYVDEVVRNAPWTLTPEFLAEHRIDFVAHDDIPYSSAGSDDVYKHIKEAGMFAPTQRTEGISTSDIITRIVRDYDVY 216
                                    49        59        69        79        89        99       109       119       129       139       149       159       169       179       189       199       209       

   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  (0, 0)

(no "SCOP Domain" information available for 3HL4)

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 3HL4)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 3HL4)

(-) Gene Ontology  (22, 22)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (PCY1A_RAT | P19836)
molecular function
    GO:0005516    calmodulin binding    Interacting selectively and non-covalently with calmodulin, a calcium-binding protein with many roles, both in the calcium-bound and calcium-free states.
    GO:0003824    catalytic activity    Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic.
    GO:0004105    choline-phosphate cytidylyltransferase activity    Catalysis of the reaction: CTP + choline phosphate = diphosphate + CDP-choline.
    GO:0008289    lipid binding    Interacting selectively and non-covalently with a lipid.
    GO:0016779    nucleotidyltransferase activity    Catalysis of the transfer of a nucleotidyl group to a reactant.
    GO:0031210    phosphatidylcholine binding    Interacting selectively and non-covalently with phosphatidylcholine, a class of glycophospholipids in which a phosphatidyl group is esterified to the hydroxyl group of choline.
    GO:0042803    protein homodimerization activity    Interacting selectively and non-covalently with an identical protein to form a homodimer.
    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.
biological process
    GO:0006657    CDP-choline pathway    The phosphatidylcholine biosynthetic process that begins with the phosphorylation of choline and ends with the combination of CDP-choline with diacylglycerol to form phosphatidylcholine.
    GO:0009058    biosynthetic process    The chemical reactions and pathways resulting in the formation of substances; typically the energy-requiring part of metabolism in which simpler substances are transformed into more complex ones.
    GO:0006629    lipid metabolic process    The chemical reactions and pathways involving lipids, compounds soluble in an organic solvent but not, or sparingly, in an aqueous solvent. Includes fatty acids; neutral fats, other fatty-acid esters, and soaps; long-chain (fatty) alcohols and waxes; sphingoids and other long-chain bases; glycolipids, phospholipids and sphingolipids; and carotenes, polyprenols, sterols, terpenes and other isoprenoids.
    GO:0006656    phosphatidylcholine biosynthetic process    The chemical reactions and pathways resulting in the formation of phosphatidylcholines, any of a class of glycerophospholipids in which the phosphatidyl group is esterified to the hydroxyl group of choline.
    GO:0008654    phospholipid biosynthetic process    The chemical reactions and pathways resulting in the formation of phospholipids, any lipid containing phosphoric acid as a mono- or diester.
cellular component
    GO:0005737    cytoplasm    All of the contents of a cell excluding the plasma membrane and nucleus, but including other subcellular structures.
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.
    GO:0005783    endoplasmic reticulum    The irregular network of unit membranes, visible only by electron microscopy, that occurs in the cytoplasm of many eukaryotic cells. The membranes form a complex meshwork of tubular channels, which are often expanded into slitlike cavities called cisternae. The ER takes two forms, rough (or granular), with ribosomes adhering to the outer surface, and smooth (with no ribosomes attached).
    GO:0005789    endoplasmic reticulum membrane    The lipid bilayer surrounding the endoplasmic reticulum.
    GO:0019898    extrinsic component of membrane    The component of a membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
    GO:0042587    glycogen granule    Cytoplasmic bead-like structures of animal cells, visible by electron microscope. Each granule is a functional unit with the biosynthesis and catabolism of glycogen being catalyzed by enzymes bound to the granule surface.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0005635    nuclear envelope    The double lipid bilayer enclosing the nucleus and separating its contents from the rest of the cytoplasm; includes the intermembrane space, a gap of width 20-40 nm (also called the perinuclear space).
    GO:0005886    plasma membrane    The membrane surrounding a cell that separates the cell from its external environment. It consists of a phospholipid bilayer and associated proteins.

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 Related Entries

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

UniProtKB/Swiss-Prot
        PCY1A_RAT | P198361peh 1pei 4mvc 4mvd

(-) Related Entries Specified in the PDB File

(no "Related Entries Specified in the PDB File" available for 3HL4)