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(-) Description

Title :  CRYSTAL STRUCTURE OF E.COLI HISTIDYL-TRNA SYNTHETASE COMPLEXED WITH A HISTIDYL-ADENYLATE ANALOGUE
 
Authors :  T. Yanagisawa, S. Y. Si, M. Matsuno, R. Ishii, S. Yokoyama, Riken Structural Genomics/Proteomics Initiative (Rsgi)
Date :  27 Mar 07  (Deposition) - 18 Mar 08  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  2.70
Chains :  Asym. Unit :  A,B,C,D
Biol. Unit 1:  A,B  (1x)
Biol. Unit 2:  C,D  (1x)
Keywords :  Trna, Aminoacyl-Trna Synthetase, Translation, Histidyl-Trna Synthetase, Aminoacyladenylate Analog, Structural Genomics, Nppsfa, National Project On Protein Structural And Functional Analyses, Riken Structural Genomics/Proteomics Initiative, Rsgi, Ligase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  T. Yanagisawa, S. Y. Si, M. Matsuno, R. Ishii, S. Yokoyama
Crystal Structure Of E. Coli Histidyl-Trna Synthetase Complexed With A Histidyl-Adenylate Analogue
To Be Published
PubMed: search
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - HISTIDYL-TRNA SYNTHETASE
    Chains: A, B, C, D
    EC Number: 6.1.1.21
    Engineered: YES
    Expression System: ESCHERICHIA COLI BL21(DE3)
    Expression System Plasmid: PET47B
    Expression System Strain: BL21(DE3)
    Expression System Taxid: 469008
    Expression System Vector Type: PLASMID
    Gene: HISS
    Organism Scientific: ESCHERICHIA COLI
    Organism Taxid: 562
    Strain: MC4100
    Synonym: HISTIDINE--TRNA LIGASE, HISRS

 Structural Features

(-) Chains, Units

  1234
Asymmetric Unit : ABCD
Biological Unit 1 (1x): AB  
Biological Unit 2 (1x):   CD

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 4)

Asymmetric Unit (1, 4)
No.NameCountTypeFull Name
1HSS4Ligand/Ion5'-O-[(L-HISTIDYLAMINO)SULFONYL]ADENOSINE
Biological Unit 1 (1, 2)
No.NameCountTypeFull Name
1HSS2Ligand/Ion5'-O-[(L-HISTIDYLAMINO)SULFONYL]ADENOSINE
Biological Unit 2 (1, 2)
No.NameCountTypeFull Name
1HSS2Ligand/Ion5'-O-[(L-HISTIDYLAMINO)SULFONYL]ADENOSINE

(-) Sites  (4, 4)

Asymmetric Unit (4, 4)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLU A:83 , THR A:85 , ARG A:113 , GLU A:115 , GLY A:120 , ARG A:121 , TYR A:122 , PHE A:125 , GLN A:127 , GLU A:131 , ARG A:259 , TYR A:263 , TYR A:264 , THR A:281 , ALA A:284 , TYR A:288 , GLY A:304 , PHE A:305 , ALA A:306 , GLY A:308 , ARG A:311BINDING SITE FOR RESIDUE HSS A 510
2AC2SOFTWAREGLU B:83 , THR B:85 , ARG B:113 , GLU B:115 , GLY B:120 , ARG B:121 , TYR B:122 , PHE B:125 , GLN B:127 , GLU B:131 , ARG B:259 , TYR B:263 , TYR B:264 , THR B:281 , TYR B:288 , GLY B:304 , PHE B:305 , ALA B:306 , GLY B:308 , ARG B:311 , HOH B:611 , HOH B:620BINDING SITE FOR RESIDUE HSS B 610
3AC3SOFTWAREGLU C:83 , THR C:85 , ARG C:113 , GLU C:115 , GLY C:120 , ARG C:121 , TYR C:122 , PHE C:125 , GLN C:127 , GLU C:131 , ARG C:259 , TYR C:263 , TYR C:264 , THR C:281 , ALA C:284 , GLY C:285 , TYR C:288 , GLY C:304 , PHE C:305 , ALA C:306 , GLY C:308 , ARG C:311BINDING SITE FOR RESIDUE HSS C 710
4AC4SOFTWAREGLU D:83 , THR D:85 , ARG D:113 , GLU D:115 , GLY D:120 , ARG D:121 , TYR D:122 , PHE D:125 , GLN D:127 , GLU D:131 , ARG D:259 , LEU D:261 , TYR D:263 , TYR D:264 , THR D:281 , ALA D:284 , TYR D:288 , GLY D:304 , PHE D:305 , ALA D:306 , GLY D:308 , ARG D:311 , HOH D:811 , HOH D:820 , HOH D:844BINDING SITE FOR RESIDUE HSS D 810

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 2EL9)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 2EL9)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 2EL9)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 2EL9)

(-) Exons   (0, 0)

(no "Exon" information available for 2EL9)

(-) Sequences/Alignments

Asymmetric 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:372
 aligned with SYH_ECOLI | P60906 from UniProtKB/Swiss-Prot  Length:424

    Alignment length:422
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422  
            SYH_ECOLI     3 KNIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDALVAFLEQHKEKLDEDCKRRMYTNPLRVLDSKNPEVQALLNDAPALGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTNSLGSQGTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
               SCOP domains d2el9a2 A:3-325 Histidyl-tRNA synthetase (HisRS)                                                                                                                                                                                                                                                                                   d2el9a1 A:326-424 Histidyl-tRNA synthetase (HisRS), C-terminal domain                               SCOP domains
               CATH domains 2el9A01 A:3-325 Bira Bifunctional Protein; Domain 2                                                                                                                                                                                                                                                                                2el9A02 A:326-422  [code=3.40.50.800, no name defined]                                           -- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhhhhhhhhh..ee.....eeehhhhhhh....hhhhhhh.eeee.....eeee...hhhhhhhhhhhh.......eeeeeeeeee...........eeeeeeeeee....hhhhhhhhhhhhhhhhhhhhhhhheee......hhhhhh....--------------------------------------------.....hhhhhhhhhhhhhhhhhh....................eeeee..------..eeeee..............eeeeeeehhhhhhhhhhhh..........eeeee....hhhhhhhhhhhhhhhh....eee.....hhhhhhhhhhhhh..eeeeehhhhhhhh..eeee.........hhhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2el9 A   3 KNIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDA--------------------------------------------LGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTN------TVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       | -         -         -         -         -  |    232       242       252       262       272 |     282       292       302       312       322       332       342       352       362       372       382       392       402       412       422  
                                                                                                                                                                                                           180                                          225                                              274    281                                                                                                                                               


Chain B from PDB  Type:PROTEIN  Length:376
 aligned with SYH_ECOLI | P60906 from UniProtKB/Swiss-Prot  Length:424

    Alignment length:421
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423 
            SYH_ECOLI     4 NIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDALVAFLEQHKEKLDEDCKRRMYTNPLRVLDSKNPEVQALLNDAPALGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTNSLGSQGTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
               SCOP domains d2el9b2 B:4-325 Histidyl-tRNA synthetase (HisRS)                                                                                                                                                                                                                                                                                  d2el9b1 B:326-424 Histidyl-tRNA synthetase (HisRS), C-terminal domain                               SCOP domains
               CATH domains 2el9B01 B:4-325 Bira Bifunctional Protein; Domain 2                                                                                                                                                                                                                                                                               2el9B02 B:326-422  [code=3.40.50.800, no name defined]                                           -- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........hhhhhhhhhhhhhhhhhhhhh...ee.....eeehhhhhhhhh..hhhhhhh.eeee.....eeee...hhhhhhhhhhhh.......eeeeeeeeee...........eeeeeeeeee....hhhhhhhhhhhhhhhhhhhhhh.eeeee....hhhhhhh..---------------------------------------------hhhhh.hhhhhhhhhhhhhhhhh....eee...........eeeeeeeee.......eeeeeee..hhhhhh......eeeeeeehhhhhhhhhhhh..........eeeee....hhhhhhhhhhhhhhhh....eee.....hhhhhhhhhhhhh..eeeeehhhhhhh.eeeeee.......eeehhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2el9 B   4 NIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYR---------------------------------------------ALGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTNSLGSQGTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173    |    -         -         -         -         -|      233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423 
                                                                                                                                                                                                        178                                           224                                                                                                                                                                                                        


Chain C from PDB  Type:PROTEIN  Length:372
 aligned with SYH_ECOLI | P60906 from UniProtKB/Swiss-Prot  Length:424

    Alignment length:422
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       182       192       202       212       222       232       242       252       262       272       282       292       302       312       322       332       342       352       362       372       382       392       402       412       422  
            SYH_ECOLI     3 KNIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDALVAFLEQHKEKLDEDCKRRMYTNPLRVLDSKNPEVQALLNDAPALGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTNSLGSQGTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
               SCOP domains d2el9c2 C:3-325 Histidyl-tRNA synthetase (HisRS)                                                                                                                                                                                                                                                                                   d2el9c1 C:326-424 Histidyl-tRNA synthetase (HisRS), C-terminal domain                               SCOP domains
               CATH domains 2el9C01 C:3-325 Bira Bifunctional Protein; Domain 2                                                                                                                                                                                                                                                                                2el9C02 C:326-422  [code=3.40.50.800, no name defined]                                           -- CATH domains
               Pfam domains -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ............hhhhhhhhhhhhhhhhhhhhhh..ee.....eeehhhhhhhhh..hhhhhhh.eeee.....eeee...hhhhhhhhhhhhh......eeeeeeeeee...........eeeeeeeeee....hhhhhhhhhhhhhhhhhhhhhh.eeeee....hhhhhhhhhh.---------------------------------------------....hhhhhhhhhhhhhhhhh....eee..............eeeeee.-----.eeeeeee..............eeeeeeehhhhhhhhhhhh..........eeeee....hhhhhhhhhhhhhhhh....eee.....hhhhhhhhhhhh...eeeeehhhhhhh.eeeeee.......eeehhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2el9 C   3 KNIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDA---------------------------------------------GDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTN-----GTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
                                    12        22        32        42        52        62        72        82        92       102       112       122       132       142       152       162       172       | -         -         -         -         -   |   232       242       252       262       272 |     282       292       302       312       322       332       342       352       362       372       382       392       402       412       422  
                                                                                                                                                                                                           180                                           226                                             274   280                                                                                                                                                


Chain D from PDB  Type:PROTEIN  Length:385
 aligned with SYH_ECOLI | P60906 from UniProtKB/Swiss-Prot  Length:424

    Alignment length:421
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183       193       203       213       223       233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423 
            SYH_ECOLI     4 NIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDALVAFLEQHKEKLDEDCKRRMYTNPLRVLDSKNPEVQALLNDAPALGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTNSLGSQGTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
               SCOP domains d2el9d2 D:4-325 Histidyl-tRNA synthetase (HisRS)                                                                                                                                                                                                                                                                                  d2el9d1 D:326-424 Histidyl-tRNA synthetase (HisRS), C-terminal domain                               SCOP domains
               CATH domains 2el9D01 D:4-325 Bira Bifunctional Protein; Domain 2                                                                                                                                                                                                                                                                               2el9D02 D:326-422  [code=3.40.50.800, no name defined]                                           -- CATH domains
               Pfam domains ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Pfam domains
         Sec.struct. author ...........hhhhhhhhhhhhhhhhhhhhh...ee.....eeehhhhhhhhh..hhhhhhh.eeee.....eeee...hhhhhhhhhhhh.......eeeeeeeeee...........eeeeeeeeee....hhhhhhhhhhhhhhhhhhhhhh.eeeeeee..hhhhhhhhhhh.......------------------------------------.hhhhhhhhhhhhhhhhhhhhhh....eee...........eeeeeeeee.......eeeeeee.hhhh.........eeeeeeehhhhhhhhhhhh..........eee......hhhhhhhhhhhhhhhh....eee.....hhhhhhhhhhhh...eeee.hhhhhhhheeeeee.....eeeeehhhhhhhhhhhh. Sec.struct. author
                 SAPs(SNPs) ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2el9 D   4 NIQAIRGMNDYLPGETAIWQRIEGTLKNVLGSYGYSEIRLPIVEQTPLFKRAIGEVTDVVEKEMYTFEDRNGDSLTLRPEGTAGCVRAGIEHGLLYNQEQRLWYIGPMFRHERPQKGRYRQFHQLGCEVFGLQGPDIDAELIMLTARWWRALGISEHVTLELNSIGSLEARANYRDALVAFLEQ------------------------------------ALGDYLDEESREHFAGLCKLLESAGIAYTVNQRLVRGLDYYNRTVFEWVTNSLGSQGTVCAGGRYDGLVEQLGGRATPAVGFAMGLERLVLLVQAVNPEFKADPVVDIYLVASGADTQSAAMALAERLRDELPGVKLMTNHGGGNFKKQFARADKWGARVAVVLGESEVANGTAVVKDLRSGEQTAVAQDSVAAHLRTLLG 424
                                    13        23        33        43        53        63        73        83        93       103       113       123       133       143       153       163       173       183   |     -         -         -         -|      233       243       253       263       273       283       293       303       313       323       333       343       353       363       373       383       393       403       413       423 
                                                                                                                                                                                                                 187                                  224
   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  (2, 8)

Asymmetric Unit
(-)
Class: Alpha and beta proteins (a+b) (23004)
(-)
Class: Alpha and beta proteins (a/b) (23833)

(-) CATH Domains  (2, 8)

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

(-) Pfam Domains  (0, 0)

(no "Pfam Domain" information available for 2EL9)

(-) Gene Ontology  (10, 10)

Asymmetric Unit(hide GO term definitions)
Chain A,B,C,D   (SYH_ECOLI | P60906)
molecular function
    GO:0005524    ATP binding    Interacting selectively and non-covalently with ATP, adenosine 5'-triphosphate, a universally important coenzyme and enzyme regulator.
    GO:0004812    aminoacyl-tRNA ligase activity    Catalysis of the formation of aminoacyl-tRNA from ATP, amino acid, and tRNA with the release of diphosphate and AMP.
    GO:0004821    histidine-tRNA ligase activity    Catalysis of the reaction: ATP + L-histidine + tRNA(His) = AMP + diphosphate + L-histidyl-tRNA(His).
    GO:0016874    ligase activity    Catalysis of the joining of two substances, or two groups within a single molecule, with the concomitant hydrolysis of the diphosphate bond in ATP or a similar triphosphate.
    GO:0000166    nucleotide binding    Interacting selectively and non-covalently with a nucleotide, any compound consisting of a nucleoside that is esterified with (ortho)phosphate or an oligophosphate at any hydroxyl group on the ribose or deoxyribose.
biological process
    GO:0006427    histidyl-tRNA aminoacylation    The process of coupling histidine to histidyl-tRNA, catalyzed by histidyl-tRNA synthetase. In tRNA aminoacylation, the amino acid is first activated by linkage to AMP and then transferred to either the 2'- or the 3'-hydroxyl group of the 3'-adenosine residue of the tRNA.
    GO:0006418    tRNA aminoacylation for protein translation    The synthesis of aminoacyl tRNA by the formation of an ester bond between the 3'-hydroxyl group of the most 3' adenosine of the tRNA, to be used in ribosome-mediated polypeptide synthesis.
    GO:0006412    translation    The cellular metabolic process in which a protein is formed, using the sequence of a mature mRNA or circRNA molecule to specify the sequence of amino acids in a polypeptide chain. Translation is mediated by the ribosome, and begins with the formation of a ternary complex between aminoacylated initiator methionine tRNA, GTP, and initiation factor 2, which subsequently associates with the small subunit of the ribosome and an mRNA or circRNA. Translation ends with the release of a polypeptide chain from the ribosome.
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.

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  2el9
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  SYH_ECOLI | P60906
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  SYH_ECOLI | P60906
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        SYH_ECOLI | P60906: 1htt 1kmm 1kmn

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