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4XK1

Crystal Structure of a Phosphoserine/phosphohydroxythreonine Aminotransferase (PSAT) from Pseudomonas aeruginosa with cofactor Pyridoxal Phosphate and bound Glutamate

Functional Information from GO Data
ChainGOidnamespacecontents
A0004648molecular_functionO-phospho-L-serine:2-oxoglutarate aminotransferase activity
A0005737cellular_componentcytoplasm
A0006563biological_processL-serine metabolic process
A0006564biological_processL-serine biosynthetic process
A0008483molecular_functiontransaminase activity
A0008615biological_processpyridoxine biosynthetic process
A0008652biological_processamino acid biosynthetic process
A0016740molecular_functiontransferase activity
A0030170molecular_functionpyridoxal phosphate binding
B0004648molecular_functionO-phospho-L-serine:2-oxoglutarate aminotransferase activity
B0005737cellular_componentcytoplasm
B0006563biological_processL-serine metabolic process
B0006564biological_processL-serine biosynthetic process
B0008483molecular_functiontransaminase activity
B0008615biological_processpyridoxine biosynthetic process
B0008652biological_processamino acid biosynthetic process
B0016740molecular_functiontransferase activity
B0030170molecular_functionpyridoxal phosphate binding
Functional Information from PDB Data
site_idAC1
Number of Residues3
Detailsbinding site for residue FMT A 401
ChainResidue
AGLY34
AGLU39
BASP17

site_idAC2
Number of Residues2
Detailsbinding site for residue FMT A 402
ChainResidue
APRO291
AARG294

site_idAC3
Number of Residues6
Detailsbinding site for residue FMT B 401
ChainResidue
BHOH532
BHOH534
BPRO163
BGLU164
BTHR165
BARG187

site_idAC4
Number of Residues5
Detailsbinding site for residue GLU B 402
ChainResidue
APHE6
AASP17
BLEU28
BGLY34
BGLU39

Functional Information from SwissProt/UniProt
site_idSWS_FT_FI1
Number of Residues14
DetailsBinding site: {"evidences":[{"source":"HAMAP-Rule","id":"MF_00160","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

site_idSWS_FT_FI2
Number of Residues2
DetailsModified residue: {"description":"N6-(pyridoxal phosphate)lysine","evidences":[{"source":"HAMAP-Rule","id":"MF_00160","evidenceCode":"ECO:0000255"}]}
ChainResidueDetails

244693

PDB entries from 2025-11-12

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