Protein domains in Prosite database.
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| Peptidase family U32 signature | E-x-F-x(2)-G-[SA]-[LIVM]-C-x(4)-G-x-C-x-[LIVM]-S. |
| Peptidyl-tRNA hydrolase signature 1 | [FYH]-x(2)-[TN]-[RK]-H-N-x-G-x(2)-[LIVMFAYCT]-[LIVMFA]-[DEN]. |
| Peptidyl-tRNA hydrolase signature 2 | [GS]-x(3)-H-N-G-[LIVM]-[KR]-[DNS]-[LIVMTC]. |
| Peripherin / rom-1 signature | D-[GS]-V-P-F-[ST]-C-C-N-P-x-S-P-R-P-C. |
| Peroxidases active site signature | [SGATV]-{D}-x(2)-[LIVMA]-R-[LIVMA]-x-[FW]-H-{V}-[SAC]. |
| Peroxidases proximal heme-ligand signature | [DET]-[LIVMTA]-{NSYL}-{RPFC}-[LIVM]-[LIVMSTAG]-[SAG]-[LIVMSTAG]-H-[STA]-[LIVMFY]. |
| pfkB family of carbohydrate kinases signature 1 | [AG]-G-x(0,1)-[GAP]-x-N-{AGLS}-[STA]-x(2)-{A}-x-{G}-{GNKA}-[GS]-x(9)-G. |
| pfkB family of carbohydrate kinases signature 2 | [DNSK]-[PSTV]-x-[SAG](2)-[GD]-D-x(3)-[SAGV]-[AG]-[LIVMFYA]-[LIVMSTAP]. |
| Phenylalanine and histidine ammonia-lyases signature | [GS]-[STG]-[LIVM]-[STG]-[SAC]-S-G-[DH]-L-x-[PN]-L-[SA]-x(2,3)-[SAGVTL]. |
| Phosphatidate cytidylyltransferase signature | S-x-[LIVMF]-K-R-x(4)-K-D-x-[GSA]-x(2)-[LIF]-[PGS]-x-H-G-G-[LIVMF]-x-D-R-[LIVMFT]-D. |
| Phosphatidylethanolamine-binding protein family signature | [FYL]-x-[LVM]-[LIVF]-x-[TIVM]-[DC]-P-D-x-P-[SNG]-x(10)-H. |
| Phosphatidylinositol 3- and 4-kinases signature 1 | [LIVMFAC]-K-x(1,3)-[DEA]-[DE]-[LIVMCP]-R-Q-[DE]-x(4)-Q. |
| Phosphatidylinositol 3- and 4-kinases signature 2 | [GSET]-x-[AVE]-x(3)-[LIVM]-x(2)-[FYHW]-[LIVM](2)-x-[LIVMFN]-x-D-R-[HNG]-x(2)-N. |
| Phosphoenolpyruvate carboxykinase (ATP) signature | L-I-G-D-D-E-H-x-W-x-[DEPKVNA]-x-[GVS]-[IV]-x-N. |
| Phosphoenolpyruvate carboxykinase (GTP) signature | [FY]-P-S-[AGMS]-C-G-K-T-[NS]. |
| Phosphoenolpyruvate carboxylase active site 1 | [VTI]-x-T-A-H-P-T-[EQ]-x(2)-R-[KRHAQ]. |
| Phosphoenolpyruvate carboxylase active site 2 | [IVLC]-M-[LIVM]-G-Y-S-D-S-x-K-[DF]-[STAG]-G. |
| Phosphofructokinase signature | [RK]-x(4)-[GAS]-H-x-[QL]-[QR]-[GS]-[GF]-x(5)-[DE]-[RL]. |
| Phosphoglucomutase and phosphomannomutase phosphoserine signature | [GSA]-[LIVMF]-x-[LIVM]-[ST]-[PGA]-S-H-[NIC]-P. |
| Phosphoglucose isomerase signature 1 | [DENSA]-x-[LIVM]-[GP]-G-R-[FY]-[ST]-[LIVMFSTAP]-x-[GSTA]-[PSTACM]-[LIVMSA]-[GSAN]. |
| Phosphoglucose isomerase signature 2 | [GSA]-x-[LIVMCAYQS]-[LIVMFYWN]-x(4)-[FY]-[DNTH]-Q-x-[GA]-[IV]-[EQST]-x(2)-K. |
| Phosphoglycerate kinase signature | [KRHGTCVN]-[VT]-[LIVMF]-[LIVMC]-R-x-D-x-N-[SACV]-P. |
| Phosphoglycerate mutase family phosphohistidine signature | [LIVM]-x-R-H-G-[EQ]-x-{Y}-x-N. |
| Phosphoketolase signature 1 | E-G-G-E-L-G-Y. |
| Phosphoketolase signature 2 | G-x(3)-[DN]-x-P-x(2)-[LIVFT]-x(3)-[LIVM]-x-G-D-G-E. |
| Phospholipase A2 aspartic acid active site | [LIVMA]-C-{LIVMFYWPCST}-C-D-{GS}-{G}-{N}-x-{QS}-C. |
| Phospholipase A2 histidine active site | C-C-{P}-x-H-{LGY}-x-C. |
| Phosphomannose isomerase type I signature 1 | Y-x-D-x-N-H-K-P-E. |
| Phosphomannose isomerase type I signature 2 | H-A-Y-[LIVM]-x-G-x(2)-[LIVM]-E-x-M-A-x-S-D-N-x-[LIVM]-R-A-G-x-T-P-K. |
| Phosphopantetheine attachment site | [DEQGSTALMKRH]-[LIVMFYSTAC]-[GNQ]-[LIVMFYAG]-[DNEKHS]-S-[LIVMST]-{PCFY}-[STAGCPQLIVMF]-[LIVMATN]-[DENQGTAKRHLM]-[LIVMWSTA]-[LIVGSTACR]-{LPIY}-{VY}-[LIVMFA]. |
| Phosphoribosyl pyrophosphate synthetase signature | D-[LIM]-H-[SANDT]-x-[QS]-[IMSTAVF]-[QMLPH]-[GA]-[FY]-F-x(2)-P-[LIVMFCT]-D. |
| Phosphoribosylglycinamide formyltransferase active site | G-x-[STMC]-[IVTL]-x-[FYWVQELKR]-[VMAT]-x-[DEVMKAI]-x-[LIVMY]-D-x-G-x(2)-[LIVTYA]-x(6)-[LIVM]. |
| Phosphoribosylglycinamide synthetase signature | R-[LF]-G-D-P-E-x-[EQIM]. |
| Phosphoribulokinase signature | K-[LIVM]-x-R-D-x(3)-R-G-x-[ST]-x-E. |
| Phosphorylase pyridoxal-phosphate attachment site | E-A-[SC]-G-x-[GS]-x-M-K-x(2)-[LM]-N. |
| Phosphotriesterase family signature 1 | G-x-T-L-x-H-E-H-[LIV]. |
| Phosphotriesterase family signature 2 | A-x-A-x-A-x(2)-{N}-x-G-{S}-P-[LIVM]-x(2)-H. |
| Photosynthetic reaction center proteins signature | [NQH]-x(4)-P-x-H-x(2)-[SAG]-x(11)-[SAGC]-x-H-[SAG](2). |
| Photosystem I psaA and psaB proteins signature | C-D-G-P-[GE]-R-G-G-T-C. |
| Photosystem I psaG and psaK proteins signature | [GTND]-[FPMI]-x-[LIVMH]-x-[DEAT]-x(2)-[GA]-x-[GTAM]-[STA]-x-G-H-x-[LIVM]-[GAS]. |
| Phytochrome chromophore attachment site signature | [RGS]-[GSA]-[PV]-H-x-C-H-x(2)-Y. |
| Plant C6 type antimicrobial peptide (AMP) signature | C-[IV]-x(2,4)-[RG]-C-x(2,6)-[GP]-x-C-C-S-x(2,4)-C-x-{C}-x(4,8)-C. |
| Plant hemoglobins signature | [SN]-P-x-[LV]-x(2)-H-A-x(3)-F. |
| Plant lipid transfer proteins signature | [LIVM]-[PA]-x(2)-C-x(1,2)-[LIVM]-x(1,2)-[LIVMST]-x-[LIVMFY]-x(1,2)-[LIVMF]-[STRD]-x(3)-[DN]-C-x(2)-[LIVM]. |
| Plant thionins signature | C-C-x(5)-R-x(2)-[FY]-x(2)-C. |
| Plant viruses icosahedral capsid proteins 'S' region signature | [FYW]-x-[PSTA]-x(7)-G-x-[LIVM]-x-[LIVM]-x-[FYWI]-x(2)-D-x(5)-P. |
| Platelet-derived growth factor (PDGF) family signature | P-[PSR]-C-V-x(3)-R-C-[GSTA]-G-C-C. |
| PMP-22 / EMP / MP20 family signature 1 | [LIVMF]-[LIVMFC]-[LIVMF](2)-[SA]-[TL]-x(2)-[DNKS]-x-W-x(9,13)-[LIV]-W-x(2)-[CG]. |
| PMP-22 / EMP / MP20 family signature 2 | [RQ]-[AVS]-x-[MC]-[IV]-L-[SA]-x-[LI]-x(4)-[GSA]-[LIVMF]-[LIVMFS]-[LIVMF]. |
| Pollen proteins Ole e I family signature | [EQT]-G-x-V-Y-C-D-[TNP]-C-R. |
| Poly(ADP-ribose) polymerase zinc finger domain signature | C-[KR]-x-C-x(3)-I-x-[KAL]-x(3)-[RG]-x(16,18)-W-[FYH]-H-x(2)-C. |
| Polygalacturonase active site | [GSDENKRH]-x(2)-[VMFC]-x(2)-[GS]-H-G-[LIVMAG]-x(1,2)-[LIVM]-G-S. |
| Polyprenyl synthetases signature 1 | [LIVM](2)-x-D-D-x(2,4)-D-x(4)-R-R-[GH]. |
| Polyprenyl synthetases signature 2 | [LIVMFY]-G-x(2)-[FYL]-Q-[LIVM]-x-D-D-[LIVMFY]-x-[DNG]. |
| Porphobilinogen deaminase cofactor-binding site | E-[KR]-x-[LIVMFAT]-x(3)-[LIVMFAC]-x-[GSALV]-[GSANHD]-C-x-[IVTACS]-[PLA]-[LIVMF]-[GSA]. |
| Potato inhibitor I family signature | [FYW]-P-[EQH]-[LIV](2)-G-x(2)-[STAGV]-x(2)-A. |
| Potexviruses and carlaviruses coat protein signature | [RK]-[FYW]-A-[GAP]-F-D-x-F-x(2)-[LV]-x(3)-[GASTY]-[GASTV]. |
| POU-specific (POUs) domain signature 1 | [RKQ]-R-[LIM]-x-[LF]-G-[LIVMFY]-x-Q-x-[DNQ]-V-G. |
| POU-specific (POUs) domain signature 2 | S-Q-[STK]-[TA]-I-[SC]-R-[FH]-[ET]-x-[LSQ]-x(0,1)-[LIR]-[ST]. |
| PpiC-type peptidyl-prolyl cis-trans isomerase signature | F-[GSADEI]-x-[LVAQ]-A-x(3)-[ST]-x(3,4)-[STQ]-x(3,5)-[GER]-G-x-[LIVM]-[GS]. |
| Prenyl group binding site (CAAX box) | C-{DENQ}-[LIVM]-x>. |
| Prephenate dehydratase signature 1 | [FY]-x-[LIVM]-x(2)-[LIVM]-x(5)-[DN]-x(5)-T-R-F-[LIVMW]-x-[LIVM]. |
| Prephenate dehydratase signature 2 | [LIVM]-[ST]-[KR]-[LIVMF]-E-[ST]-R-P. |
| Prion protein signature 1 | A-G-A-A-A-A-G-A-V-V-G-G-L-G-G-Y. |
| Prion protein signature 2 | E-x-[ED]-x-K-[LIVM](2)-x-[KR]-[LIVM](2)-x-[QE]-M-C-x(2)-Q-Y. |
| Profilin signature | |
| Prokaryotic diacylglycerol kinase signature | E-x-[LIVM]-N-[ST]-[SA]-[LIV]-E-x(2)-V-D. |
| Prokaryotic dksA C4-type zinc finger | C-[DESN]-x-[CTS]-x(3)-I-x(3)-[RK]-x(4)-P-x(4)-[CSLAT]-x(2)-[CAYF]. |
| Prokaryotic DNA topoisomerase I active site | [EQ]-x-L-Y-[DEQSTLM]-x(3,12)-[LIVST]-[ST]-Y-x-R-[ST]-[DEQSN]. |
| Prokaryotic molybdopterin oxidoreductases signature 1 | [STAN]-x-[CH]-x(2,3)-C-[STAG]-[GSTVMF]-x-C-x-[LIVMFYW]-x-[LIVMA]-x(3,4)-[DENQKHT]. |
| Prokaryotic molybdopterin oxidoreductases signature 2 | [STA]-x-[STAC](2)-x(2)-[STA]-D-[LIVMY](2)-L-P-x-[STAC](2)-x(2)-E. |
| Prokaryotic molybdopterin oxidoreductases signature 3 | A-x(3)-[GDTN]-[IF]-x-[DNQTKEH]-x-[DEAQ]-x-[LIVM]-x-[LIVMC]-x-[NS]-x(2)-[GS]-x(4,5)-[AV]-x-[LIVMEF]-[STY]. |
| Prokaryotic N-terminal methylation site | [KRHEQSTAG]-G-[FYLIVM]-[ST]-[LT]-[LIVP]-E-[LIVMFWSTAG](14). |
| Prokaryotic sulfate-binding proteins signature 1 | K-x-[NQEK]-[GT]-G-[DQ]-x-[LIVM]-x(3)-Q-S. |
| Prokaryotic sulfate-binding proteins signature 2 | N-P-K-[ST]-S-G-x-A-R. |
| Prokaryotic transcription elongation factors signature 1 | [EKH]-[LHVI]-x(9,10)-[IVNLR]-x(3)-[LIV]-x(6)-G-D-x(2)-E-N-[GSA]-x-Y. |
| Prokaryotic transcription elongation factors signature 2 | S-x(2)-S-[PK]-[LIVMF]-[AG]-x-[SAGNE]-[LIVM]-[LIVY]-x(4)-[DNG]-[DE]. |
| Prokaryotic transglycosylases signature | [LIVM]-x(3)-E-S-x(3)-[AP]-x(3)-S-x(5)-G-[LIVM]-[LIVMFYW]-x-[LIVMFYW]-x(4)-[SAG]. |
| Prokaryotic zinc-dependent phospholipase C signature | H-Y-x-[GT]-D-[LIVMAF]-[DNSH]-x-P-x-H-[PA]-x-N. |
| Prokaryotic-type carbonic anhydrases signature 1 | C-[SA]-D-S-R-[LIVM]-x-[AP]. |
| Prokaryotic-type carbonic anhydrases signature 2 | [EQ]-[YF]-A-[LIVM]-x(2)-[LIVM]-x(4)-[LIVMF](3)-x-G-H-x(2)-C-G. |
| Prokaryotic-type class I peptide chain release factors signature | [ARH]-[STA]-x-G-x-G-G-Q-[HNGCSY]-[VI]-N-x(3)-[ST]-[AKG]-[IV]. |
| Proliferating cell nuclear antigen signature 1 | [GSTA]-[LIVMF]-x-[LIVMAS]-x-[GSAVI]-[LIVM]-[DS]-x-[NSAED]-[HKRNS]-[VIT]-x-[LMYF]-[VIGAL]-x-[LIVMF]-x-[LIVM]-x(4)-F. |
| Proliferating cell nuclear antigen signature 2 | [RKA]-C-[DE]-[RH]-x(3)-[LIVMF]-x(3)-[LIVM]-x-[SGAN]-[LIVMF]-x-K-[LIVMF](2). |
| Prolipoprotein diacylglyceryl transferase signature | [GI]-R-x-[GA]-N-[FWY]-[LIVMFA]-[NG]-x-E-x(2)-G. |
| Prolyl endopeptidase family serine active site | D-x(3)-A-x(3)-[LIVMFYW]-x(14)-G-x-S-x-G-G-[LIVMFYW](2). |
| Protamine P1 signature | [AV]-R-[NFY]-R-x(2,3)-[ST]-{S}-S-{NS}-S. |
| Proteasome A-type subunits signature | [FYNAGS]-x(4)-[STNLV]-x-[FYW]-S-[PDS]-x(0,1)-G-[RKHDS]-x(2)-Q-[LIVA]-[DENR]-[YH]-[GSAD]-x(2)-[GSAG]. |
| Proteasome B-type subunits signature | [LIVMACFT]-[GSA]-[LIVMF]-x-[FYLVGAC]-x(2)-[GSACFYI]-[LIVMSTACF]-[LIVMSTAC]-[LIVMFSTAC]-[GACI]-[GSTACV]-[DES]-x(15,16)-[RK]-x(12,13)-G-x(2)-[GSTA]-D. |
| Protein kinase C phosphorylation site | [ST]-x-[RK]. |
| Protein kinases ATP-binding region signature | [LIV]-G-{P}-G-{P}-[FYWMGSTNH]-[SGA]-{PW}-[LIVCAT]-{PD}-x-[GSTACLIVMFY]-x(5,18)-[LIVMFYWCSTAR]-[AIVP]-[LIVMFAGCKR]-K. |
| Protein phosphatase 2A regulatory subunit PR55 signature 1 | E-F-D-Y-L-K-S-L-E-I-E-E-K-I-N. |
| Protein phosphatase 2A regulatory subunit PR55 signature 2 | [NH]-[AG]-H-[TAD]-Y-H-I-N-S-I-S-[LIVMN]-[NS]-S-D. |
| Protein phosphatase 2C signature | [LIVMFY]-[LIVMFYA]-[GSAC]-[LIVM]-[FYC]-D-G-H-[GAV]. |
| Protein secE/sec61-gamma signature | [LIVMFY]-x-{D}-[DENQGA]-x-{E}-x(2)-[LIVMFTA]-x-[KRV]-x(2)-[KW]-P-x(3)-[SEQ]-x(5)-{D}-{CG}-[LIVT]-[LIVGA]-[LIVFGAST]. |
| Protein secY signature 1 | [GSTL]-[LIVMFK]-[LIVMFCA]-x-[LIVMF]-[GSAN]-[LIVM]-x-P-[LIVMFYN]-[LIVMFY]-x-[AS]-[GSTQD]-[LIVMFAT](3)-[EQ]-[LIVMFA](2). |
| Protein secY signature 2 | [LIVMFYW](2)-x-[DE]-x-[LIVM]-[STDNQ]-x(2,3)-[GK]-[LIVMF]-[GST]-[NST]-G-x-[GST]-[LIV]-[LIVFP]. |
| Protein-L-isoaspartate(D-aspartate) O-methyltransferase signature | [GSAED]-[DN]-G-x(2)-G-[FYWLV]-x(3)-[GSA]-[PTL]-[FY]-[DNSHE]-x-I. |
| Protozoan/cyanobacterial globins signature | F-[LF]-x(4)-[GE]-G-[PAT]-x(2)-[YW]-x-[GSE]-[KRQAE]-x(1,5)-[LIVM]-x(3)-H. |
| PTN/MK heparin-binding protein family signature 1 | S-[DE]-C-x-[DE]-W-x-W-x(2)-C-x-P-x-[SN]-x-D-C-G-[LIVMA]-G-x-R-E-G. |
