Entry
Name
coagulation factor IXa;
activated Christmas factor;
blood-coagulation factor IXa;
activated blood-coagulation factor IX;
autoprothrombin II;
blood platelet cofactor II;
activated blood coagulation factor XI
Class
Hydrolases;
Acting on peptide bonds (peptidases);
Serine endopeptidases
BRITE hierarchy
Reaction(IUBMB)
Selective cleavage of Arg!Ile bond in factor X to form factor Xa
Comment
A chymotrypsin homologue, and one of the gamma-carboxyglutamic acid-containing blood coagulation factors. The proenzyme factor IX is activated by factor XIa. In peptidase family S1 (trypsin family)
History
EC 3.4.21.22 created 1978
Orthology
K01321 coagulation factor IX (Christmas factor)
Genes
MORG : 121437358(F9) 121437531
AJM : 119035951 119035956(F9)
BREG : 104636356(F9) 104636704
PVT : 110084962(F9) 110084966
SUND : 121936404 121936945
PMUR : 107303228(F9) 114922195
CTIG : 120313156(F9) 120313157
PGUT : 117679567 117679568
APRI : 131205096 131205191
NSS : 113423773(F9) 113423775
VKO : 123021890(F9) 123021893
PMUA : 114589339 114589340
PRAF : 128406976 128406977
XLA : 100049721(f9.S) 108698922(f9.L)
GSH : 117360947(F9) 117366428
DRE : 100004411 359826(f9a) 678552(f9b)
SRX : 107718750 107720621 107725753 107744572 107752055 107752057
SANH : 107658031 107665423 107693933 107701106 107705017
SGH : 107548854 107551862 107555166 107601103
CCAR : 109052316 109097646 109101831
CAUA : 113054325 113058792 113074406 113081131 113109828 113113961
CGIB : 127966822 127971705 128021163 128029091
PTET : 122332961 122352633(f9b) 122357932(f9a)
LROH : 127171814(f9b) 127175782(f9a) 127177761
OMC : 131520567 131548350(f9b) 131553344(f9a)
PPRM : 120470818 120474441(f9a) 120476467(f9b)
MAMB : 125248956 125259379(f9a) 125260815(f9b)
CIDE : 127494393 127495179 127520167
MASI : 127413254 127418322 127422599 127432866 127433732
TROS : 130546321(f9b) 130563404(f9a) 130565187
MANU : 129422212(f9a) 129438705 129446924 129446925
IPU : 108268424(f9a) 108276806(f9b) 108277713
IFU : 128611397(f9a) 128620199(f9b) 128621863
PHYP : 113529026 113538408(f9) 113544655
SMEO : 124386197(f9a) 124393102(f9b) 124394151
TFD : 113635590(f9a) 113637905 113650395(f9b)
AMEX : 103022627(f9) 103033862 103041525
CMAO : 118798569 118807185(f9a) 118824414(f9b)
EEE : 113574745 113576276(f9) 113583063
CHAR : 105907419(f9b) 105909308 105911766(f9a)
TRU : 101064607 101068927(f9) 445943(f9)
TFS : 130531323(f9a) 130535456 130538133(f9b)
TNG : GSTEN00012000G001 GSTEN00021128G001 GSTEN00031251G001
LCO : 104923492(f9) 104933045 104934181
NCC : 104958005(f9) 104966981
CGOB : 115014925(f9) 115017358 115018674
ELY : 117259475 117260738(f9a) 117263254(f9b)
EFO : 125888443 125894968(f9a) 125898498(f9b)
PLEP : 121944792 121947762(f9a) 121952108(f9b)
SLUC : 116037008(f9b) 116052318(f9a) 116058414
ECRA : 117952317(f9a) 117955774(f9b)
ESP : 116679434 116696315(f9) 116700694
PFLV : 114553065 114563384(f9) 114566228
GAT : 120816259 120817387(f9a) 120821765(f9b)
PPUG : 119210652(f9a) 119215010(f9b) 119219178
AFB : 129089049 129089700(f9a) 129113167(f9b)
CLUM : 117738001(f9a) 117741454 117742862(f9b)
MSAM : 119883019 119888354(f9a) 119896138(f9b)
SCHU : 122878610 122879908(f9a) 122888044(f9b)
CUD : 121516494(f9a) 121518348 121518745(f9b)
ALAT : 119004656 119007505(f9a) 119030677(f9b)
MZE : 101464969 101466133 101487720
ONL : 100694381 100704957 100710669
OAU : 116319684 116322509(f9a) 116335354
OML : 112142967(f9b) 112149281
XMA : 102218647 102223546 102232890
XCO : 114139367 114153445 114161730
XHE : 116707484 116714655 116728004
PRET : 103471616(f9) 103475255(proc) 103475699
PFOR : 103138877 103140167(f9) 103152964(proc)
PLAI : 106940167 106941078 106945726(f9) 106951497(proc)
PMEI : 106914303(proc) 106916355(f9) 106917156 106926451
GAF : 122832819 122837096(f9a) 122845323
CVG : 107084182 107089261 107103483
CTUL : 119786309(f9a) 119791588 119795204
GMU : 124860629(f9a) 124876095(f9b) 124884100
KMR : 108238908(f9b) 108250981
ALIM : 106524024(f9) 106534439
NWH : 119411452 119419953(f9b)
AOCE : 111567418 111579637 111583320
MCEP : 125008173(f9a) 125013724 125021693(f9b)
CSEM : 103378120 103390768(f9) 103395530
POV : 109635678(f9) 109643586
SSEN : 122760751 122773154 122778257(f9a) 122779212(f9b)
HHIP : 117768879(f9a) 117772464 117774356(f9b)
HSP : 118105997 118112359(f9a) 118122015(f9b)
LCF : 108872530(f9a) 108893791(f9b) 108902924
SDU : 111216838 111217075 111232459(f9)
SLAL : 111646698 111666341 111672128
XGL : 120785141(f9a) 120791817 120802120(f9b)
HCQ : 109510358 109511925(f9)
SSCV : 125982268 125982327 125988050
BPEC : 110155882 110158837(f9) 110174768
MALB : 109955339 109959991
BSPL : 114863862(f9a) 114868003 114869145(f9b)
SASA : 100380442(fa9) 106602969(f9) 106611733 106612366
STRU : 115154847(f9) 115162857 115205279 115205815
OTW : 112216678 112228949(f9b) 112256184(f9a) 112265006
OMY : 110490052 110504952(f9a) 110507316 110534144(f9b)
OGO : 123993164 123994829 124006117(f9b) 124011005
ONE : 115106768 115129409 115135497(f9) 115137179
OKI : 109864473 109883606(f9) 109905138 109906297
OKE : 118363426 118366006 118390511(f9b) 118397029
SALP : 111949682 111951166 111960637 111967439
SNH : 120018467 120028772 120057325(f9b) 120062323
CCLU : 121532151(f9a) 121541383 121567286 121579623
ELS : 105029672 105029823 109614554
SFM : 108922151 108922945 108929003
PKI : 111835018 111837223 111859692
AANG : 118210210 118224271(f9a) 118236647
LOC : 102691633 102698954(f9)
PSPA : 121317879(f9b) 121322738
ARUT : 117412272 117430184
PSEX : 120535044 120537308
CMK : 103178220(f9) 103179434
CPLA : 122555773 122557440
RSAN : 119379359 119396908
» show all
Taxonomy
Reference
Authors
Fujikawa K, Davie EW.
Title
Bovine factor IX (Christmas factor).
Journal
Reference
Authors
Davie EW, Fujikawa K, Kurachi K, Kisiel W.
Title
The role of serine proteases in the blood coagulation cascade.
Journal
Reference
Authors
Link RP, Castellino FJ.
Title
Kinetic comparison of bovine blood coagulation factors IXa alpha and IXa beta toward bovine factor X.
Journal
Reference
Authors
Cho K, Tanaka T, Cook RR, Kisiel W, Fujikawa K, Kurachi K, Powers JC.
Title
Active-site mapping of bovine and human blood coagulation serine proteases using synthetic peptide 4-nitroanilide and thio ester substrates.
Journal
Other DBs
ExPASy - ENZYME nomenclature database: 3.4.21.22