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(-) Description

Title :  STRUCTURES OF LIGAND BOUND HUMAN CHOLINE ACETYLTRANSFERASE PROVIDE INSIGHT INTO REGULATION OF ACETYLCHOLINE SYNTHESIS
 
Authors :  A. R. Kim, R. J. Rylett, B. H. Shilton
Date :  07 Feb 06  (Deposition) - 12 Dec 06  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.25
Chains :  Asym./Biol. Unit :  A
Keywords :  Two Domain, Alpha-Beta Protein, Transferase (Keyword Search: [Gene Ontology, PubMed, Web (Google))
 
Reference :  A. R. Kim, R. J. Rylett, B. H. Shilton
Substrate Binding And Catalytic Mechanism Of Human Choline Acetyltransferase.
Biochemistry V. 45 14621 2006
PubMed-ID: 17144655  |  Reference-DOI: 10.1021/BI061536L
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - CHOLINE O-ACETYLTRANSFERASE
    ChainsA
    EC Number2.3.1.6
    EngineeredYES
    Expression SystemESCHERICHIA COLI BL21(DE3)
    Expression System PlasmidPPROEXHTA
    Expression System StrainBL21(DE3)
    Expression System Taxid469008
    Expression System Vector TypePLASMID
    FragmentRESIDUES 120-733
    GeneCHAT
    Organism CommonHUMAN
    Organism ScientificHOMO SAPIENS
    Organism Taxid9606
    SynonymCHOACTASE, CHOLINE ACETYLASE, CHAT

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (0, 0)

(no "Ligand,Modified Residues,Ions" information available for 2FY2)

(-) Sites  (0, 0)

(no "Site" information available for 2FY2)

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2FY2)

(-) Cis Peptide Bonds  (2, 2)

Asymmetric/Biological Unit
No.Residues
1Glu A:182 -Pro A:183
2Val A:356 -Pro A:357

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (16, 16)

Asymmetric/Biological Unit (16, 16)
  dbSNPPDB
No.SourceVariant IDVariantUniProt IDStatusIDChainVariant
01UniProtVAR_011666L210PCLAT_HUMANDisease (CMS6)28930071AL92P
02UniProtVAR_011667P211ACLAT_HUMANDisease (CMS6)121912815AP93A
03UniProtVAR_046684R222PCLAT_HUMANPolymorphism8178989AR104P
04UniProtVAR_046685L243FCLAT_HUMANPolymorphism8178990AL125F
05UniProtVAR_046686P299LCLAT_HUMANPolymorphism868749AP181L
06UniProtVAR_011668I305TCLAT_HUMANDisease (CMS6)28929482AI187T
07UniProtVAR_038605I336TCLAT_HUMANDisease (CMS6)121912823AI218T
08UniProtVAR_011676A392GCLAT_HUMANPolymorphism  ---AA274G
09UniProtVAR_046687D400NCLAT_HUMANPolymorphism8178991AD282N
10UniProtVAR_011669R420CCLAT_HUMANDisease (CMS6)121912822AR302C
11UniProtVAR_011670E441KCLAT_HUMANDisease (CMS6)28930070AE323K
12UniProtVAR_046688V461MCLAT_HUMANPolymorphism4838544AM343M
13UniProtVAR_011671R482GCLAT_HUMANDisease (CMS6)28929481AR364G
14UniProtVAR_011672S498LCLAT_HUMANDisease (CMS6)121912821AS380L
15UniProtVAR_011673V506LCLAT_HUMANDisease (CMS6)121912817AV388L
16UniProtVAR_011674R560HCLAT_HUMANDisease (CMS6)121912819AR442H

  SNP/SAP Summary Statistics (UniProtKB/Swiss-Prot)

(-) PROSITE Motifs  (2, 2)

Asymmetric/Biological Unit (2, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1ACYLTRANSF_C_1PS00439 Acyltransferases ChoActase / COT / CPT family signature 1.CLAT_HUMAN131-146  1A:13-28
2ACYLTRANSF_C_2PS00440 Acyltransferases ChoActase / COT / CPT family signature 2.CLAT_HUMAN420-447  1A:302-329

(-) Exons   (14, 14)

Asymmetric/Biological Unit (14, 14)
 ENSEMBLUniProtKBPDB
No.Transcript IDExonExon IDGenome LocationLengthIDLocationLengthCountLocationLength
1.3aENST000003376533aENSE00002152214chr10:50822083-50822521439CLAT_HUMAN1-96960--
1.5ENST000003376535ENSE00001630343chr10:50824548-50824648101CLAT_HUMAN96-129341A:8-114
1.6cENST000003376536cENSE00000703071chr10:50827771-50827962192CLAT_HUMAN130-193641A:12-7564
1.7ENST000003376537ENSE00000703068chr10:50828541-50828659119CLAT_HUMAN194-233401A:76-11540
1.8ENST000003376538ENSE00000582112chr10:50830143-5083019654CLAT_HUMAN233-251191A:115-13319
1.9bENST000003376539bENSE00000703064chr10:50833519-50833699181CLAT_HUMAN251-311611A:133-193 (gaps)61
1.10ENST0000033765310ENSE00000582114chr10:50835654-50835831178CLAT_HUMAN312-371601A:194-25360
1.11ENST0000033765311ENSE00000986061chr10:50854551-50854720170CLAT_HUMAN371-427571A:253-30957
1.12ENST0000033765312ENSE00000986062chr10:50856553-50856653101CLAT_HUMAN428-461341A:310-34334
1.13ENST0000033765313ENSE00000986063chr10:50857554-50857682129CLAT_HUMAN461-504441A:343-386 (gaps)44
1.14ENST0000033765314ENSE00000335649chr10:50859930-50860052123CLAT_HUMAN504-545421A:386-42742
1.15ENST0000033765315ENSE00000703047chr10:50863141-50863282142CLAT_HUMAN545-592481A:427-47448
1.16ENST0000033765316ENSE00000335651chr10:50863432-5086349463CLAT_HUMAN593-613211A:475-49521
1.17ENST0000033765317ENSE00000986064chr10:50870691-50870828138CLAT_HUMAN614-659461A:496-54146
1.18ENST0000033765318ENSE00001373391chr10:50872823-50873150328CLAT_HUMAN660-748891A:542-60766

(-) 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:585
 aligned with CLAT_HUMAN | P28329 from UniProtKB/Swiss-Prot  Length:748

    Alignment length:600
                                   135       145       155       165       175       185       195       205       215       225       235       245       255       265       275       285       295       305       315       325       335       345       355       365       375       385       395       405       415       425       435       445       455       465       475       485       495       505       515       525       535       545       555       565       575       585       595       605       615       625       635       645       655       665       675       685       695       705       715       725
           CLAT_HUMAN   126 SEESGLPKLPVPPLQQTLATYLQCMRHLVSEEQFRKSQAIVQQFGAPGGLGETLQQKLLERQEKTANWVSEYWLNDMYLNNRLALPVNSSPAVIFARQHFPGTDDQLRFAASLISGVLSYKALLDSHSIPTDCAKGQLSGQPLCMKQYYGLFSSYRLPGHTQDTLVAQNSSIMPEPEHVIVACCNQFFVLDVVINFRRLSEGDLFTQLRKIVKMASNEDERLPPIGLLTSDGRSEWAEARTVLVKDSTNRDSLDMIERCICLVCLDAPGGVELSDTHRALQLLHGGGYSKNGANRWYDKSLQFVVGRDGTCGVVCEHSPFDGIVLVQCTEHLLKHVTQSSRKLIRADSVSELPAPRRLRWKCSPEIQGHLASSAEKLQRIVKNLDFIVYKFDNYGKTFIKKQKCSPDAFIQVALQLAFYRLHRRLVPTYESASIRRFQEGRVDNIRSATPEALAFVRAVTDHKAAVPASEKLLLLKDAIRAQTAYTVMAITGMAIDNHLLALRELARAMCKELPEMFMDETYLMSNRFVLSTSQVPTTTEMFCCYGPVVPNGYGACYNPQPETILFCISSFHSCKETSSSKFAKAVEESLIDMRDLCSLL 725
               SCOP domains d2fy2a1 A:8-391 Choline O-acetyltransferase                                                                                                                                                                                                                                                                                                                                                     d2fy2a2 A:392-607 Choline O-acetyltransferase                                                                                                                                                                            SCOP domains
               CATH domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhhh...hhhhhhhhhh.....hhhhhh..eee.......hhhhhhhhhhhhhhhhhhhhhhhhh.....--------.....hhhhhhh..eeee......eeee.----....eeeeeee..eeeeeeeee..ee.hhhhhhhhhhhhhhhhhhhhhh..hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh...eeee........hhhhhhhhhhhh...............eeeee.....eeeee.....hhhhhhhhhhhhhhhhh..--.........-....ee.....hhhhhhhhhhhhhhhhhhhhheeeeeeee...hhhhhhh...hhhhhhhhhhhhhhhhhhh....eeeeee........eee....hhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhh...hhhhhhhhhhhhhhhh...hhhhhhhhhhhhh...eeeee.......eee........eeeeeee....eeeeeeee......hhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------PA----------P--------------------F-------------------------------------------------------L-----T------------------------------T-------------------------------------------------------G-------N-------------------C--------------------K-------------------M--------------------G---------------L-------L-----------------------------------------------------H--------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----ACYLTRANSF_C_1  ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ACYLTRANSF_C_2              -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
           Transcript 1 (1) 1.5 Exon 1.6c  PDB: A:12-75 UniProt: 130-193                        Exon 1.7  PDB: A:76-115 UniProt: 194-233-----------------Exon 1.9b  PDB: A:133-193 (gaps) UniProt: 251-311            Exon 1.10  PDB: A:194-253 UniProt: 312-371                  --------------------------------------------------------Exon 1.12  PDB: A:310-343         ------------------------------------------Exon 1.14  PDB: A:386-427 UniProt: 504-545-----------------------------------------------Exon 1.16            Exon 1.17  PDB: A:496-541 UniProt: 614-659    Exon 1.18  PDB: A:542-607 UniProt: 660-748 [INCOMPLETE]            Transcript 1 (1)
           Transcript 1 (2) -----------------------------------------------------------------------------------------------------------Exon 1.8           -----------------------------------------------------------------------------------------------------------------------Exon 1.11  PDB: A:253-309 UniProt: 371-427               ---------------------------------Exon 1.13  PDB: A:343-386 (gaps)            ----------------------------------------Exon 1.15  PDB: A:427-474 UniProt: 545-592      ------------------------------------------------------------------------------------------------------------------------------------- Transcript 1 (2)
                 2fy2 A   8 SEESGLPKLPVPPLQQTLATYLQCMRHLVSEEQFRKSQAIVQQFGAPGGLGETLQQKLLERQEKTANWVSEYWLNDMYLNNRLALPVNSSPAVIFARQHFPGTDDQLRFAASLISGVLSYKALLDSHSIPT--------GQPLCMKQYYGLFSSYRLPGHTQDTLVAQ----MPEPEHVIVACCNQFFVLDVVINFRRLSEGDLFTQLRKIVKMASNAAARLPPIGLLTSDGRSEWAEARTVLVKDSTNRDSLDMIERCICLVCLDAPGGVELSDTHRALQLLHGGGYSKNGANRWYDKSLQFVVGRDGTCGVVCEHSPFDGIVLVQCTEHLLKHMTQP--ELVRSPMVP-LPAPRRLRWKCSPEIQGHLASSAEKLQRIVKNLDFIVYKFDNYGKTFIKKQKCSPDAFIQVALQLAFYRLHRRLVPTYESASIRRFQEGRVDNIRSATPEALAFVRAVTDHKAAVPASEKLLLLKDAIRAQTAYTVMAITGMAIDNHLLALRELARAMCAALPEMFMDETYLMSNRFVLSTSQVPTTTEMFCCYGPVVPNGYGACYNPQPETILFCISSFHSCAATSSSKFAKAVEESLIDMRDLCSLL 607
                                    17        27        37        47        57        67        77        87        97       107       117       127       137|      147       157       167       | -  |    187       197       207       217       227       237       247       257       267       277       287       297       307       317       327       337        |- |     357 |     367       377       387       397       407       417       427       437       447       457       467       477       487       497       507       517       527       537       547       557       567       577       587       597       607
                                                                                                                                                            138      147                         175  180                                                                                                                                                                   346  |     357 |                                                                                                                                                                                                                                                        
                                                                                                                                                                                                                                                                                                                                                                               349       359                                                                                                                                                                                                                                                        

   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

(-) CATH Domains  (0, 0)

(no "CATH Domain" information available for 2FY2)

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2FY2)

(-) Gene Ontology  (19, 19)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (CLAT_HUMAN | P28329)
molecular function
    GO:0004102    choline O-acetyltransferase activity    Catalysis of the reaction: acetyl-CoA + choline = acetylcholine + CoA.
    GO:0033265    choline binding    Interacting selectively and non-covalently with choline, the amine 2-hydroxy-N,N,N-trimethylethanaminium.
    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.
    GO:0016746    transferase activity, transferring acyl groups    Catalysis of the transfer of an acyl group from one compound (donor) to another (acceptor).
biological process
    GO:0008292    acetylcholine biosynthetic process    The chemical reactions and pathways resulting in the formation of acetylcholine, the acetic acid ester of the organic base choline.
    GO:0001547    antral ovarian follicle growth    Increase in size of antral follicles due to cell proliferation and/or growth of the antral cavity.
    GO:0007613    memory    The activities involved in the mental information processing system that receives (registers), modifies, stores, and retrieves informational stimuli. The main stages involved in the formation and retrieval of memory are encoding (processing of received information by acquisition), storage (building a permanent record of received information as a result of consolidation) and retrieval (calling back the stored information and use it in a suitable way to execute a given task).
    GO:0042136    neurotransmitter biosynthetic process    The chemical reactions and pathways resulting in the formation of any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell.
    GO:0007269    neurotransmitter secretion    The regulated release of neurotransmitter from the presynapse into the synaptic cleft via calcium regualated exocytosis during synaptic transmission.
    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:0042493    response to drug    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a drug stimulus. A drug is a substance used in the diagnosis, treatment or prevention of a disease.
    GO:0045471    response to ethanol    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of an ethanol stimulus.
    GO:0001666    response to hypoxia    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a stimulus indicating lowered oxygen tension. Hypoxia, defined as a decline in O2 levels below normoxic levels of 20.8 - 20.95%, results in metabolic adaptation at both the cellular and organismal level.
    GO:0007584    response to nutrient    Any process that results in a change in state or activity of a cell or an organism (in terms of movement, secretion, enzyme production, gene expression, etc.) as a result of a nutrient stimulus.
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:0043005    neuron projection    A prolongation or process extending from a nerve cell, e.g. an axon or dendrite.
    GO:0005634    nucleus    A membrane-bounded organelle of eukaryotic cells in which chromosomes are housed and replicated. In most cells, the nucleus contains all of the cell's chromosomes except the organellar chromosomes, and is the site of RNA synthesis and processing. In some species, or in specialized cell types, RNA metabolism or DNA replication may be absent.
    GO:0098793    presynapse    The part of a synapse that is part of the presynaptic cell.

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 Related Entries

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

UniProtKB/Swiss-Prot
        CLAT_HUMAN | P283292fy3 2fy4 2fy5

(-) Related Entries Specified in the PDB File

2fy3 2fy4 2fy5