Structure of PDB 4azj Chain B

Receptor sequence

>4azjB (length=358) Species: 1445 (Alkalihalobacillus alcalophilus)

QVFNFNAGPSALPKPALERAQKELLNFNDTQMSVMELSHRSQSYEEVHEQ
AQNLLRELLQIPNDYQILFLQGGASLQFTMLPMNLLTKGTIGNYVLTGSW
SEKALKEAKLLGETHIAASTKANSYQSIPDFSEFQLNENDAYLHITSNNT
IYGTQYQNFPEINHAPLIADMSSDILSRPLKVNQFGMIYAGAQKNLGPSG
VTVVIVKKDLLNTKVEQVPTMLQYATHIKSDSLYNTPPTFSIYMLRNVLD
WIKDLGGAEAIAKQNEEKAKIIYDTIDESNGFYVGHAEKGSRSLMNVTFN
LRNEELNQQFLAKAKEQGFVGLNGHRSVGGCRASIYNAVPIDACIALREL
MIQFKENA

3D structure

• PDB: 4azj Structural Basis of L-Phosphoserine Binding to Bacillus Alcalophilus Phosphoserine Aminotransferase
• Chain: B
• Resolution: 1.5 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): W102 D172 K196
• Catalytic site (residue number reindexed from 1): W100 D170 K194
• Enzyme Commision number: 2.6.1.52: phosphoserine transaminase.

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	SEP	B	H41 R42	H39 R40
BS02	PLP	B	N237 T238	N235 T236
BS03	SEP	B	W102 T152 K196 H327 R328 R334	W100 T150 K194 H325 R326 R332
BS04	PLP	B	A76 S77 W102 T152 D172 S174 Q195 K196	A74 S75 W100 T150 D170 S172 Q193 K194

Gene Ontology

Molecular Function

• GO:0004648 O-phospho-L-serine:2-oxoglutarate aminotransferase activity
• GO:0008483 transaminase activity
• GO:0030170 pyridoxal phosphate binding

Biological Process

• GO:0006563 L-serine metabolic process
• GO:0006564 L-serine biosynthetic process

Cellular Component

• GO:0005737 cytoplasm

External links

• PDB: RCSB:4azj, PDBe:4azj, PDBj:4azj
• PDBsum: 4azj
• PubMed: 23633589
• UniProt: Q9RME2|SERC_ALKAL Phosphoserine aminotransferase (Gene Name=serC)