eF-site ID 4rva-A
PDB Code 4rva
Chain A

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Title A triple mutant in the omega-loop of TEM-1 beta-lactamase changes the substrate profile via a large conformational change and an altered general base for deacylation
Classification HYDROLASE
Compound Beta-lactamase TEM
Source Escherichia coli (BLAT_ECOLX)
Sequence A:  HPETLVKVKDAEDQLGARVGYIELDLNSGKILESFRPEER
FPMMSTFKVLLCGAVLSRVDAGQEQLGRRIHYSQNDLVEY
SPVTEKHLTDGMTVRELCSAAITMSDNTAANLLLTTIGGP
KELTAFLHNMGDHVTRLDRYYGELNEAIPNDERDTTMPAA
MATTLRKLLTGELLTPASRQQLIDWMEADKVAGPLLRSAL
PAGWFIADKSGAGERGSRGIIAALGPDGKPSRIVVIYTTG
SQATMDERNRQIAEIGASLIKHW
Description


Functional site

1) chain A
residue 69
type
sequence M
description BINDING SITE FOR RESIDUE BCT A 301
source : AC1

2) chain A
residue 70
type
sequence S
description BINDING SITE FOR RESIDUE BCT A 301
source : AC1

3) chain A
residue 130
type
sequence S
description BINDING SITE FOR RESIDUE BCT A 301
source : AC1

4) chain A
residue 236
type
sequence G
description BINDING SITE FOR RESIDUE BCT A 301
source : AC1

5) chain A
residue 237
type
sequence A
description BINDING SITE FOR RESIDUE BCT A 301
source : AC1

6) chain A
residue 70
type catalytic
sequence S
description 2
source MCSA : MCSA1

7) chain A
residue 73
type catalytic
sequence K
description 2
source MCSA : MCSA1

8) chain A
residue 130
type catalytic
sequence S
description 2
source MCSA : MCSA1

9) chain A
residue 166
type catalytic
sequence Y
description 2
source MCSA : MCSA1

10) chain A
residue 234
type catalytic
sequence K
description 2
source MCSA : MCSA1

11) chain A
residue 237
type catalytic
sequence A
description 2
source MCSA : MCSA1

12) chain A
residue 70
type ACT_SITE
sequence S
description Acyl-ester intermediate
source Swiss-Prot : SWS_FT_FI1

13) chain A
residue 168
type ACT_SITE
sequence E
description Proton acceptor
source Swiss-Prot : SWS_FT_FI2

14) chain A
residue 66-81
type prosite
sequence FPMMSTFKVLLCGAVL
description BETA_LACTAMASE_A Beta-lactamase class-A active site. FpMMSTfKvllCGAVL
source prosite : PS00146

15) chain A
residue 234
type BINDING
sequence K
description
source Swiss-Prot : SWS_FT_FI3


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