2ZQC - JenaLib

Title :   AZTREONAM ACYL-INTERMEDIATE STRUCTURE OF CLASS A BETA-LACTAM TOHO-1 E166A/R274N/R276N TRIPLE MUTANT

Authors :   Y. Nitanai, T. Shimamura, T. Uchiyama, Y. Ishii, M. Takehira, K. Yutani H. Matsuzawa, M. Miyano

Date :   07 Aug 08 (Deposition) - 28 Jul 09 (Release) - 31 Aug 11 (Revision)

Method :   X-RAY DIFFRACTION

Resolution :   1.07

Chains :   Asym./Biol. Unit : A

Keywords :   Extended-Spectrum, Esbl, Beta-Lactamase, Acyl-Enzyme Complex, Aztreonam, Toho-1, Hydrolase, Antibiotic Resistance (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )

Reference :   Y. Nitanai, T. Shimamura, T. Uchiyama, Y. Ishii, M. Takehira, K. Yutan H. Matsuzawa, M. Miyano
Structural Basis Of Extend Spectrum Beta-Lactamase In Correlation Of Enzymatic Kinetics And Thermal Stability Of Acyl-Intermediates
To Be Published
PubMed: search

Compounds

Structural Features

Chains, Units

Ligands, Modified Residues, Ions (2, 5)

Sites (5, 5)

Asymmetric Unit (5, 5)

No.	Name	Evidence	Residues	Description
1	AC1	SOFTWARE	TRP A:229 , PRO A:252 , GLU A:254 , ASN A:255 , HIS A:256 , PHE A:290 , HOH A:605 , HOH A:607 , HOH A:631	BINDING SITE FOR RESIDUE SO4 A 1
2	AC2	SOFTWARE	LYS A:82 , ALA A:198 , ASN A:274 , ASN A:276 , ASP A:277 , HOH A:377 , HOH A:395 , HOH A:427 , HOH A:439 , HOH A:445 , HOH A:448 , HOH A:451 , HOH A:531	BINDING SITE FOR RESIDUE SO4 A 2
3	AC3	SOFTWARE	ALA A:52 , ARG A:178 , HOH A:340 , HOH A:365 , HOH A:429	BINDING SITE FOR RESIDUE SO4 A 3
4	AC4	SOFTWARE	LYS A:88 , HIS A:89 , ASN A:92 , HOH A:339 , HOH A:397	BINDING SITE FOR RESIDUE SO4 A 5
5	AC5	SOFTWARE	CYS A:69 , SER A:70 , ASN A:104 , TYR A:105 , SER A:130 , ASN A:132 , PRO A:167 , ASN A:170 , LYS A:234 , THR A:235 , GLY A:236 , SER A:237 , ASP A:240 , HOH A:381 , HOH A:636 , HOH A:652 , HOH A:680 , HOH A:694 , HOH A:695	BINDING SITE FOR RESIDUE AZR A 301

SS Bonds (0, 0)

Cis Peptide Bonds (1, 1)

Sequence-Structure Mapping

SAPs(SNPs)/Variants (0, 0)

PROSITE Motifs (1, 1)

Exons (0, 0)

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
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Chain A from PDB  Type:PROTEIN  Length:261
 aligned with BLT1_ECOLX | Q47066 from UniProtKB/Swiss-Prot  Length:291

    Alignment length:261
                                    40        50        60        70        80        90       100       110       120       130       140       150       160       170       180       190       200       210       220       230       240       250       260       270       280       290 
           BLT1_ECOLX    31 NSVQQQLEALEKSSGGRLGVALINTADNSQILYRADERFAMCSTSKVMAAAAVLKQSESDKHLLNQRVEIKKSDLVNYNPIAEKHVNGTMTLAELGAAALQYSDNTAMNKLIAHLGGPDKVTAFARSLGDETFRLDRTEPTLNTAIPGDPRDTTTPLAMAQTLKNLTLGKALAETQRAQLVTWLKGNTTGSASIRAGLPKSWVVGDKTGSGDYGTTNDIAVIWPENHAPLVLVTYFTQPEQKAERRRDILAAAAKIVTHGF 291
               SCOP domains d2zqca_ A: beta-Lactamase, class A                                                                                                                                                                                                                                    SCOP domains
               CATH domains 2zqcA00 A:27-290 DD-peptidase/beta-lactamase superfamily                                                                                                                                                                                                              CATH domains
               Pfam domains ------------------------Beta-lactamase2-2zqcA01 A:51-263                                                                                                                                                                                  --------------------------- Pfam domains
         Sec.struct. author .hhhhhhhhhhhhh..eeeeeeee.....eeee.....ee.hhhhhhhhhhhhhhhhh........eee.hhhhh.....hhhhhh..eeehhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhh...........hhhhh........eehhhhhhhhhhhhhhh...hhhhhhhhhhhhhh......hhhhhh....eeeeeeeee...eeeeeeeee......eeeeeeee........hhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE --------------------------------------BETA_LACTAMASE_A--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Transcript
                 2zqc A  27 NSVQQQLEALEKSSGGRLGVALINTADNSQILYRADERFAMCSTSKVMAAAAVLKQSESDKHLLNQRVEIKKSDLVNYNPIAEKHVNGTMTLAELGAAALQYSDNTAMNKLIAHLGGPDKVTAFARSLGDETFRLDRTAPTLNTAIPGDPRDTTTPLAMAQTLKNLTLGKALAETQRAQLVTWLKGNTTGSASIRAGLPKSWVVGDKTGSGDYGTTNDIAVIWPENHAPLVLVTYFTQPEQKAENRNDILAAAAKIVTHGF 290
                                    36        46        56||      67        77        87        97       107       117       127       137       147       157       167       177       187       197       207       217       227       237||     248   ||  259       269       279       289 
                                                         57|                                                                                                                                                                                238|         252|                                    
                                                          59                                                                                                                                                                                 240          254

Legend:		→ Mismatch	(orange background)
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	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, 1)

CATH Domains (1, 1)

Pfam Domains (1, 1)

Gene Ontology (4, 4)

Asymmetric/Biological Unit(hide GO term definitions)

Chain A (BLT1_ECOLX | Q47066)

molecular function
	GO:0008800	beta-lactamase activity	Catalysis of the reaction: a beta-lactam + H2O = a substituted beta-amino acid.
	GO:0016787	hydrolase activity	Catalysis of the hydrolysis of various bonds, e.g. C-O, C-N, C-C, phosphoric anhydride bonds, etc. Hydrolase is the systematic name for any enzyme of EC class 3.
biological process
	GO:0030655	beta-lactam antibiotic catabolic process	The chemical reactions and pathways resulting in the breakdown of a beta-lactam antibiotic, any member of a class of natural or semisynthetic antibiotics whose characteristic feature is a strained, four-membered beta-lactam ring. They include the penicillins and many of the cephalosporins.
	GO:0046677	response to antibiotic	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 antibiotic stimulus. An antibiotic is a chemical substance produced by a microorganism which has the capacity to inhibit the growth of or to kill other microorganisms.

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		Ala A:166 - Pro A:167	[ RasMol ]

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