Structure of PDB 1iqk Chain A

Receptor sequence
>1iqkA (length=235) Species: 9606 (Homo sapiens) [Search protein sequence]
IVGGQECKDGECPWQALLINEENEGFCGGTILSEFYILTAAHCLYQAKRF
KVRVGDRNTEQEEGGEAVHEVEVVIKHNRFTKETYDFDIAVLRLKTPITF
RMNVAPACLPERDWAESTLMTQKTGIVSGFGRTHEKGRQSTRLKMLEVPY
VDRNSCKLSSSFIITQNMFCAGYDTKQEDACQGDSGGPHVTRFKDTYFVT
GIVSWGEGCARKGKYGIYTKVTAFLKWIDRSMKTR
3D structure
PDB1iqk Autoproteolysis or Plasmin-Mediated Cleavage of Factor Xaalpha Exposes a Plasminogen Binding Site and Inhibits Coagulation
ChainA
Resolution3.2 Å
3D
structure
Catalytic site residues are labeled in the structure
[Spin on]
[Spin off]
[Reset orientation]

[High quality]
[Low quality]

[White background]
[Black background]

[Download]
[Download structure with residue number starting from 1]
Enzymatic activity
Catalytic site (original residue number in PDB) H57 D102 Q192 G193 D194 S195 G196
Catalytic site (residue number reindexed from 1) H42 D88 Q182 G183 D184 S185 G186
Enzyme Commision number 3.4.21.6: coagulation factor Xa.
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 CA A D70 N72 Q75 E77 E80 D56 N58 Q61 E63 E66
BS02 XMI A E97 T98 Y99 F174 Q192 W215 G216 G218 C220 G226 I227 Y228 E83 T84 Y85 F162 Q182 W205 G206 G208 C209 G216 I217 Y218
Gene Ontology
Molecular Function
GO:0004252 serine-type endopeptidase activity
Biological Process
GO:0006508 proteolysis

View graph for
Molecular Function
View graph for
Biological Process
External links
PDB RCSB:1iqk, PDBe:1iqk, PDBj:1iqk
PDBsum1iqk
PubMed
UniProtP00742|FA10_HUMAN Coagulation factor X (Gene Name=F10)

[Back to BioLiP]