Structure of PDB 2faf Chain A

Receptor sequence

>2fafA (length=596) Species: 9031 (Gallus gallus)

LSTSLSALPAAARDFVEEAVRLCRPREVLLCDGSEEEGKELLRGLQDDGV
LHPLPKYDNCWLARTDPRDVARVESKTVLVTPEQSDAVPPPPPSGGPPQL
GNWMSPNAFQAAVQERFPGCMAGRPLYVIPFSMGPPTSPLAKLGVQVTDS
PYVVLSMRIMTRVGPAVLQRLDDDFVRCLHSVGRPLPLTEPLVSSWPCDP
SRVLVAHIPSERRIVSFGSGYGGNSLLGKKCFALRIASRMAQQQGWLAEH
MLILGVTSPSGEKRYMAAAFPSACGKTNLAMMTPSLPGWRIHCVGDDIAW
MKFDDEGRLRAINPERGFFGVAPGTSSRTNPNAMATIARNTIFTNVGLRS
DGGVYWDGLDEPTEPGVTYTSWLGKPWKHGDPEPCAHPNSRFCAPADQCP
IMDPRWDDPEGVPIDAIIFGGRRPRGVPLVVEAFGWRHGVFMGSAMRSLM
HDPFAMRPFFGYNAGRYLEHWLSTGLRSNARLPRLFHVNWFLRDNEGRFV
WPGFGHNARVLAWIFGRIQGRDTARPTPIGWVPKEGDLDLGGLPGVDYSQ
LFPMEKGFWEEECRQLREYYGENFGADLPRDVMAELEGLEERVRKM

3D structure

• PDB: 2faf Structural Insights into the Mechanism of PEPCK Catalysis
• Chain: A
• Resolution: 1.7 Å

Enzymatic activity

• Catalytic site (original residue number in PDB): R105 Y254 K263 H283 S305 C307 D330 R424
• Catalytic site (residue number reindexed from 1): R72 Y221 K230 H250 S272 C274 D297 R391
• Enzyme Commision number: 4.1.1.32: phosphoenolpyruvate carboxykinase (GTP).

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	TQY	A	F467 W576	F434 W531
BS02	FRU	A	R470 E630 R637	R437 E585 R592
BS03	MN	A	K263 H283 C307 D330	K230 H250 C274 D297

Gene Ontology

Molecular Function

• GO:0004611 phosphoenolpyruvate carboxykinase activity
• GO:0004613 phosphoenolpyruvate carboxykinase (GTP) activity
• GO:0005525 GTP binding
• GO:0017076 purine nucleotide binding

Biological Process

• GO:0006094 gluconeogenesis

External links

• PDB: RCSB:2faf, PDBe:2faf, PDBj:2faf
• PDBsum: 2faf
• PubMed: 16819824
• UniProt: P21642|PCKGM_CHICK Phosphoenolpyruvate carboxykinase [GTP], mitochondrial (Gene Name=PCK2)