Structure of PDB 3p93 Chain B

Receptor sequence

>3p93B (length=388) Species: 158080 ()

LKIRDAYTIVTCPGRNFVTLKIVTESGTHGIGDATLNGREMAVAAYLDEH
VVPALIGRDAGRIEDTWQYLYRGAYWRRGPVTMTAIAAVDMALWDIKAKA
AGMPLYQLLGGKSRERVMTYAHCTGQTIEDCLGEVARHVELGYRAVRVQS
GVPGEPADSSLPAEHVWSTEKYLNHAPKLFAAVRERFGDDLHVLHDVHHR
LTPIEAARLGKAVEPYHLFWLEDCVPAENQESLRLIREHTTTPLAIGEVF
NSIHDCRELIQNQWIDYIRMPLTHGGGITAMRRVADLASLYHVRTGFHGP
TDLSPVCLGAAIHFDTWVPNFGIQEHMPHTDETDAVFPHDYRFEDGHFLA
GESPGHGVDIDEELAAKYPYERASLPVNRLEDGTLWHW

3D structure

• PDB: 3p93 CRYSTAL STRUCTURE OF D-MANNONATE DEHYDRATASE FROM CHROMOHALOBACTER SALEXIGENS complexed with MG,D-Mannonate and 2-keto-3-deoxy-D-Gluconate
• Chain: B
• Resolution: 1.8 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): H124 R149 Q151 D213 H215 E239 G264 E265 R286 P288 H315 G316 E342 W405
• Catalytic site (residue number reindexed from 1): H122 R147 Q149 D196 H198 E222 G247 E248 R269 P271 H298 G299 E325 W388
• Enzyme Commision number: 4.2.1.-
  4.2.1.39: gluconate dehydratase.
  4.2.1.8: mannonate dehydratase.

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	MG	B	D213 E239 E265	D196 E222 E248
BS02	CS2	B	N39 H124 D213 H215 E265 H315 P317 D319 E342	N37 H122 D196 H198 E248 H298 P300 D302 E325

Gene Ontology

Molecular Function

• GO:0000287 magnesium ion binding
• GO:0008927 mannonate dehydratase activity
• GO:0016829 lyase activity
• GO:0046872 metal ion binding
• GO:0047929 gluconate dehydratase activity

Biological Process

• GO:0009063 amino acid catabolic process
• GO:0016052 carbohydrate catabolic process

External links

• PDB: RCSB:3p93, PDBe:3p93, PDBj:3p93
• PDBsum: 3p93
• UniProt: Q1QT89|DMGD_CHRSD D-galactonate dehydratase family member ManD (Gene Name=manD)