Structure of PDB 2exa Chain A

Receptor sequence
>2exaA (length=443) Species: 562 (Escherichia coli) [Search protein sequence]
YITQLPAGANLALMVQKVGASAPAIDYHSQQMALPASTQKVITALAALIQ
LGPDFRFTTTLETKGNVENGVLKGDLVARFGADPTLKRQDIRNMVATLKK
SGVNQIDGNVLIDTSIFASHDKAPGWPWNDMTQCFSAPPAAAIVDRNCFS
VSLYSAPKPGDMAFIRVASYYPVTMFSQVRTLPRGSAEAQYCELDVVPGD
LNRFTLTGCLPQRSEPLPLAFAVQDGASYAGAILKYELKQAGITWSGTLL
RQTQVNEPGTVVASKQSAPLHDLLKIMLKKSDNMIADTVFRMIGHARFNV
PGTWRAGSDAVRQILRQQAGVDIGNTIIADGSGLSRHNLIAPATMMQVLQ
YIAQHDNELNFISMLPLAGYDGSLQYRAGLHQAGVDGKVSAKTGSLQGVY
NLAGFITTASGQRMAFVQYLSGYARIPLVRFESRLYKDIYQNN
3D structure
PDB2exa Crystal structure of penicillin binding protein 4 (dacB) from Escherichia coli, both in the native form and covalently linked to various antibiotics
ChainA
Resolution1.7 Å
3D
structure
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Enzymatic activity
Enzyme Commision number 3.4.16.4: serine-type D-Ala-D-Ala carboxypeptidase.
3.4.21.-
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 DGF A S62 S306 N308 L359 G419 S420 S37 S281 N283 L334 G394 S395
Gene Ontology
Molecular Function
GO:0004175 endopeptidase activity
GO:0004180 carboxypeptidase activity
GO:0004185 serine-type carboxypeptidase activity
GO:0004252 serine-type endopeptidase activity
GO:0005515 protein binding
GO:0008658 penicillin binding
GO:0009002 serine-type D-Ala-D-Ala carboxypeptidase activity
GO:0016787 hydrolase activity
Biological Process
GO:0000270 peptidoglycan metabolic process
GO:0006508 proteolysis
GO:0008360 regulation of cell shape
GO:0009252 peptidoglycan biosynthetic process
GO:0043093 FtsZ-dependent cytokinesis
GO:0046677 response to antibiotic
GO:0051301 cell division
GO:0071555 cell wall organization
Cellular Component
GO:0005886 plasma membrane
GO:0042597 periplasmic space

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Cellular Component
External links
PDB RCSB:2exa, PDBe:2exa, PDBj:2exa
PDBsum2exa
PubMed16411754
UniProtP24228|DACB_ECOLI D-alanyl-D-alanine carboxypeptidase DacB (Gene Name=dacB)

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