6CBE

Atomic structure of a rationally engineered gene delivery vector, AAV2.5


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
ASCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
AA [auth 0]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
AB [auth u]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
BA [auth 1]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
BB [auth v]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
CA [auth 2]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
CB [auth w]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
DA [auth 3]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
DB [auth x]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
EA [auth 4]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
EB [auth y]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
FA [auth 5]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
FB [auth z]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
GA [auth a]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
GB [auth 6]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
HA [auth b]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
HB [auth 7]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
ISCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
IA [auth c]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
JSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
JA [auth d]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
KSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
KA [auth e]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
LSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
LA [auth f]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
MSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
MA [auth g]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
NSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
NA [auth h]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
OSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
OA [auth i]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
PSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
PA [auth j]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
QSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
QA [auth k]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
RSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
RA [auth l]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
SSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
SA [auth m]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
TSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
TA [auth n]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
USCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
UA [auth o]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
VSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
VA [auth p]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
WSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
WA [auth q]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
XSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
XA [auth r]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
YSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
YA [auth s]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
ZSCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)
ZA [auth t]SCOP2B SuperfamilyssDNA viruses8041416 3000931 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
AParvo_coate6cbeA1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
AA [auth 0]Parvo_coate6cbe01 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
AB [auth u]Parvo_coate6cbeu1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
BParvo_coate6cbeB1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
BA [auth 1]Parvo_coate6cbe11 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
BB [auth v]Parvo_coate6cbev1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
CParvo_coate6cbeC1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
CA [auth 2]Parvo_coate6cbe21 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
CB [auth w]Parvo_coate6cbew1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
DParvo_coate6cbeD1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
DA [auth 3]Parvo_coate6cbe31 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
DB [auth x]Parvo_coate6cbex1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
EParvo_coate6cbeE1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
EA [auth 4]Parvo_coate6cbe41 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
EB [auth y]Parvo_coate6cbey1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
FParvo_coate6cbeF1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
FA [auth 5]Parvo_coate6cbe51 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
FB [auth z]Parvo_coate6cbez1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
GParvo_coate6cbeG1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
GA [auth a]Parvo_coate6cbea1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
GB [auth 6]Parvo_coate6cbe61 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
HParvo_coate6cbeH1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
HA [auth b]Parvo_coate6cbeb1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
HB [auth 7]Parvo_coate6cbe71 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
IParvo_coate6cbeI1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
IA [auth c]Parvo_coate6cbec1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
JParvo_coate6cbeJ1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
JA [auth d]Parvo_coate6cbed1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
KParvo_coate6cbeK1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
KA [auth e]Parvo_coate6cbee1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
LParvo_coate6cbeL1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
LA [auth f]Parvo_coate6cbef1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
MParvo_coate6cbeM1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
MA [auth g]Parvo_coate6cbeg1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
NParvo_coate6cbeN1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
NA [auth h]Parvo_coate6cbeh1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
OParvo_coate6cbeO1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
OA [auth i]Parvo_coate6cbei1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
PParvo_coate6cbeP1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
PA [auth j]Parvo_coate6cbej1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
QParvo_coate6cbeQ1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
QA [auth k]Parvo_coate6cbek1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
RParvo_coate6cbeR1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
RA [auth l]Parvo_coate6cbel1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
SParvo_coate6cbeS1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
SA [auth m]Parvo_coate6cbem1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
TParvo_coate6cbeT1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
TA [auth n]Parvo_coate6cben1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
UParvo_coate6cbeU1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
UA [auth o]Parvo_coate6cbeo1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
VParvo_coate6cbeV1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
VA [auth p]Parvo_coate6cbep1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
WParvo_coate6cbeW1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
WA [auth q]Parvo_coate6cbeq1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
XParvo_coate6cbeX1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
XA [auth r]Parvo_coate6cber1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
YParvo_coate6cbeY1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
YA [auth s]Parvo_coate6cbes1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
ZParvo_coate6cbeZ1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)
ZA [auth t]Parvo_coate6cbet1 A: beta sandwichesX: jelly-rollH: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)T: Nucleoplasmin-like/VP (viral coat and capsid proteins)F: Parvo_coatECOD (1.6)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
Capsid protein VP1

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
IPR013607Phospholipase A2-like domainDomain
IPR016184Capsid/spike protein, ssDNA virusHomologous Superfamily
IPR036952Parvovirus coat protein VP1/VP2Homologous Superfamily
IPR001403Parvovirus coat protein VP2Domain