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(-) Description

Title :  THE STRUCTURE OF NUCLEOTIDYLATED GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE FROM ESCHERICHIA COLI AT 1.86 ANGSTROMS RESOLUTION
 
Authors :  J. E. Wedekind, P. A. Frey, I. Rayment
Date :  16 Jun 96  (Deposition) - 22 Oct 97  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.86
Chains :  Asym./Biol. Unit :  A,B
Keywords :  Metalloenzyme, Nucleotidylated Histidine, Reaction Intermediate, Nucleotidyltransferase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  J. E. Wedekind, P. A. Frey, I. Rayment
The Structure Of Nucleotidylated Histidine-166 Of Galactose-1-Phosphate Uridylyltransferase Provides Insight Into Phosphoryl Group Transfer.
Biochemistry V. 35 11560 1996
PubMed-ID: 8794735  |  Reference-DOI: 10.1021/BI9612677
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HEXOSE-1-PHOSPHATE URIDYLYLTRANSFERASE
    Cell Line: BL21
    Chains: A, B
    EC Number: 2.7.7.12
    Engineered: YES
    Expression System: ESCHERICHIA COLI
    Expression System Gene: GALT
    Expression System Plasmid: PTZ18ROT
    Expression System Strain: BL21 (DE3) PLYSS
    Expression System Taxid: 562
    Expression System Vector: PET VECTOR SYSTEM
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Synonym: ALPHA-D-GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE, GALACTOSE-1-PHOSPHATE URIDYLYLTRANSFERASE-URIDYLYLATED HIS 166

 Structural Features

(-) Chains, Units

  12
Asymmetric/Biological Unit : AB

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (3, 6)

Asymmetric/Biological Unit (3, 6)
No.NameCountTypeFull Name
1FE2Ligand/IonFE (III) ION
2U5P2Ligand/IonURIDINE-5'-MONOPHOSPHATE
3ZN2Ligand/IonZINC ION

(-) Sites  (6, 6)

Asymmetric Unit (6, 6)
No.NameEvidenceResiduesDescription
1AC1SOFTWARECYS A:52 , CYS A:55 , HIS A:115 , HIS A:164BINDING SITE FOR RESIDUE ZN A 350
2AC2SOFTWAREGLU A:182 , HIS A:281 , HIS A:296 , HIS A:298BINDING SITE FOR RESIDUE FE A 351
3AC3SOFTWARECYS B:52 , CYS B:55 , HIS B:115 , HIS B:164BINDING SITE FOR RESIDUE ZN B 350
4AC4SOFTWAREGLU B:182 , HIS B:281 , HIS B:296 , HIS B:298BINDING SITE FOR RESIDUE FE B 351
5AC5SOFTWAREARG A:60 , VAL A:61 , ASN A:77 , ASP A:78 , VAL A:108 , CYS A:160 , HIS A:166 , GLN A:168 , HOH A:516 , HOH A:518 , HOH A:519BINDING SITE FOR RESIDUE U5P A 352
6AC6SOFTWAREPHE B:53 , ARG B:60 , VAL B:61 , ASN B:77 , ASP B:78 , VAL B:108 , CYS B:160 , HIS B:166 , GLN B:168 , HOH B:359 , HOH B:394 , HOH B:614BINDING SITE FOR RESIDUE U5P B 352

(-) SS Bonds  (0, 0)

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

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1HXQ)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

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

(-) PROSITE Motifs  (1, 2)

Asymmetric/Biological Unit (1, 2)
 PROSITEUniProtKBPDB
No.IDACDescriptionIDLocationCountLocation
1GAL_P_UDP_TRANSF_IPS00117 Galactose-1-phosphate uridyl transferase family 1 active site signature.GAL7_ECOLI151-168
 		  2A:151-168
B:151-168

(-) Exons   (0, 0)

(no "Exon" information available for 1HXQ)

(-) 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:340
 aligned with GAL7_ECOLI | P09148 from UniProtKB/Swiss-Prot  Length:348

    Alignment length:347
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       
           GAL7_ECOLI     2 TQFNPVDHPHRRYNPLTGQWILVSPHRAKRPWQGAQETPAKQVLPAHDPDCFLCAGNVRVTGDKNPDYTGTYVFTNDFAALMSDTPDAPESHDPLMRCQSARGTSRVICFSPDHSKTLPELSVAALTEIVKTWQEQTAELGKTYPWVQVFENKGAAMGCSNPHPHGQIWANSFLPNEAEREDRLQKEYFAEQKSPMLVDYVQRELADGSRTVVETEHWLAVVPYWAAWPFETLLLPKAHVLRITDLTDAQRSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNGEENQHWQLHAHFYPPLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDIHFRESGV 348
               SCOP domains d1hxqa1 A:2-177 Galactose-1-phospha       te uridylyltransferase                                                                                                                d1hxqa2 A:178-348 Galactose-1-phosphate uridylyltransferase                                                                                                                 SCOP domains
               CATH domains ------------------------------------------1hxqA02 A:44-175 HIT family, subunit A                                                                                              1hxqA01 A:176-347 HIT family, subunit A                                                                                                                                     - CATH domains
               Pfam domains ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........eeeee....eeeee............-------.............................eeee......................eee..eeeeeee.............hhhhhhhhhhhhhhhhhh.....eeeeeeee...........eeeeeee....hhhhhhhhhhhhhhhhh...hhhhhhhhhhhh...eeee...eeee..........eeeee...........hhhhhhhhhhhhhhhhhhh........eeeeee..............eeeee..............hhhhh........hhhhhhhhhh........... Sec.struct. author
                 SAPs(SNPs) ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------GAL_P_UDP_TRANSF_I------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ PROSITE
                 Transcript ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1hxq A   2 TQFNPVDHPHRRYNPLTGQWILVSPHRAKRPWQGA-------VLPAHDPDCFLCAGNVRVTGDKNPDYTGTYVFTNDFAALMSDTPDAPESHDPLMRCQSARGTSRVICFSPDHSKTLPELSVAALTEIVKTWQEQTAELGKTYPWVQVFENKGAAMGCSNPHPHGQIWANSFLPNEAEREDRLQKEYFAEQKSPMLVDYVQRELADGSRTVVETEHWLAVVPYWAAWPFETLLLPKAHVLRITDLTDAQRSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNGEENQHWQLHAHFYPPLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDIHFRESGV 348
                                    11        21        31    |    -  |     51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341       
                                                             36      44                                                                                                                                                                                                                                                                                                                


Chain B from PDB  Type:PROTEIN  Length:333
 aligned with GAL7_ECOLI | P09148 from UniProtKB/Swiss-Prot  Length:348

    Alignment length:346
                                    11        21        31        41        51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341      
           GAL7_ECOLI     2 TQFNPVDHPHRRYNPLTGQWILVSPHRAKRPWQGAQETPAKQVLPAHDPDCFLCAGNVRVTGDKNPDYTGTYVFTNDFAALMSDTPDAPESHDPLMRCQSARGTSRVICFSPDHSKTLPELSVAALTEIVKTWQEQTAELGKTYPWVQVFENKGAAMGCSNPHPHGQIWANSFLPNEAEREDRLQKEYFAEQKSPMLVDYVQRELADGSRTVVETEHWLAVVPYWAAWPFETLLLPKAHVLRITDLTDAQRSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNGEENQHWQLHAHFYPPLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDIHFRESG 347
               SCOP domains d1hxqb1 B:2-177 Galactose-1-p             hosphate uridylyltransferase                                                                                                          d1hxqb2 B:178-347 Galactose-1-phosphate uridylyltransferase                                                                                                                SCOP domains
               CATH domains ------------------------------------------1hxqB02 B:44-175 HIT family, subunit A                                                                                              1hxqB01 B:176-345 HIT family, subunit A                                                                                                                                   -- CATH domains
               Pfam domains ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author .........eeeee....eeeee......-------------.............................eeee......................eee..eeeeeee.............hhhhhhhhhhhhhhhhhh.....eeeeeeee...........eeeeeee....hhhhhhhhhhhhhhhhh...hhhhhhhhhhhh...eeee...eeee..........eeeee...........hhhhhhhhhhhhhhhhhhh........eeeeee..............eeeee..............hhhhh........hhhhhhhhhh.......... Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -----------------------------------------------------------------------------------------------------------------------------------------------------GAL_P_UDP_TRANSF_I----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 1hxq B   2 TQFNPVDHPHRRYNPLTGQWILVSPHRAK-------------VLPAHDPDCFLCAGNVRVTGDKNPDYTGTYVFTNDFAALMSDTPDAPESHDPLMRCQSARGTSRVICFSPDHSKTLPELSVAALTEIVKTWQEQTAELGKTYPWVQVFENKGAAMGCSNPHPHGQIWANSFLPNEAEREDRLQKEYFAEQKSPMLVDYVQRELADGSRTVVETEHWLAVVPYWAAWPFETLLLPKAHVLRITDLTDAQRSDLALALKKLTSRYDNLFQCSFPYSMGWHGAPFNGEENQHWQLHAHFYPPLLRSATVRKFMVGYEMLAETQRDLTAEQAAERLRAVSDIHFRESG 347
                                    11        21        |-         -  |     51        61        71        81        91       101       111       121       131       141       151       161       171       181       191       201       211       221       231       241       251       261       271       281       291       301       311       321       331       341      
                                                       30            44
   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, 4)

Asymmetric/Biological Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)

(-) CATH Domains  (1, 4)

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

(-) Pfam Domains  (0, 0)

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

(-) Gene Ontology  (13, 13)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A,B   (GAL7_ECOLI | P09148)
molecular function
    GO:0008108    UDP-glucose:hexose-1-phosphate uridylyltransferase activity    Catalysis of the reaction: alpha-D-galactose 1-phosphate + UDP-D-glucose = alpha-D-glucose 1-phosphate + UDP-D-galactose.
    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:0008198    ferrous iron binding    Interacting selectively and non-covalently with ferrous iron, Fe(II).
    GO:0004335    galactokinase activity    Catalysis of the reaction: D-galactose + ATP = alpha-D-galactose 1-phosphate + ADP + 2 H(+).
    GO:0046872    metal ion binding    Interacting selectively and non-covalently with any metal ion.
    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.
    GO:0008270    zinc ion binding    Interacting selectively and non-covalently with zinc (Zn) ions.
biological process
    GO:0005975    carbohydrate metabolic process    The chemical reactions and pathways involving carbohydrates, any of a group of organic compounds based of the general formula Cx(H2O)y. Includes the formation of carbohydrate derivatives by the addition of a carbohydrate residue to another molecule.
    GO:0046835    carbohydrate phosphorylation    The process of introducing a phosphate group into a carbohydrate, any organic compound based on the general formula Cx(H2O)y.
    GO:0033499    galactose catabolic process via UDP-galactose    The chemical reactions and pathways resulting in the breakdown of galactose, via the intermediate UDP-galactose.
    GO:0006012    galactose metabolic process    The chemical reactions and pathways involving galactose, the aldohexose galacto-hexose. D-galactose is widely distributed in combined form in plants, animals and microorganisms as a constituent of oligo- and polysaccharides; it also occurs in galactolipids and as its glucoside in lactose and melibiose.
cellular component
    GO:0005829    cytosol    The part of the cytoplasm that does not contain organelles but which does contain other particulate matter, such as protein complexes.

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  1hxq
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  GAL7_ECOLI | P09148
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  2.7.7.12
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 Related Entries

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

UniProtKB/Swiss-Prot
        GAL7_ECOLI | P09148: 1gup 1guq 1hxp

(-) Related Entries Specified in the PDB File

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