There are 1263 domains in the SMART database.

Signalling
14_3_3 4.1m acidPPc ADF ANK APCDDC ARF ArfGap
ARM B41 B561 B_lectin BAG BH4 BIR BTK
C1 C2 Calx_beta CARD CASc CH CheW CNH
cNMP CULLIN CYCc Cyclin_C Cyt-b5 DAGKa DAGKc DAX
DEATH DED DEP DSPc DYNc EAL EFh EH
ENTH FBOX FCH FF FH2 FHA FIST Frizzled
FYVE G_alpha GAF GAS2 GED GGDEF GGL GoLoco
GRAM GS GuKc HAMP HATPase_c HECTc HisKA HPT
Hr1 ILWEQ IPPc IQ ITAM KISc L27 LIM
LMWPc MA MeTrc MIR MYSc MyTH4 PAC PAS
PASTA PBD PDZ PH PI3K_C2 PI3K_p85B PI3K_rbd PI3Ka
PI3Kc PIPKc PLAc PLCXc PLCYc PLDc PP2Ac PP2Cc
PTB PTBI PTEN_C2 PTPc PTPc_DSPc PTPc_motif PX PXA
RA RAB RAN RanBD RAS RasGAP RasGEF RasGEFN
RBD REC RGS RHO RHOD RhoGAP RhoGEF RIIa
RING RIO S_TK_X S_TKc SAM SAR SEC14 Sec7
SH2 SH3 small_GTPase SOCS SPEC SPRY START STAT_int
STYKc t_SNARE TarH TBC TIR TRASH TyrKc UBA
UBCc UBQ UBX VHP VHS VPS9 WD40 WH1
WH2 WW ZnF_A20 ZnF_AN1 ZnF_RBZ ZnF_UBP ZnF_ZZ ZU5
Nuclear
35EXOc 53EXOc A1pp ADEAMc AlkA_N ANTAR AP2 AP2Ec
APC2 AraC_E_bind ARID AT_hook AWS AXH B3 BAF
BAH BASIC BBC BBOX BCL BEN BHD_1 BHD_2
BHD_3 BING4CT BOP1NT BP28CT BRCT BRIGHT BRK BRLZ
Bro-N BROMO Brr6_like_C_C BSD BTD BTP c-clamp C1_4
CarD_TRCF CAT_RBD CBF Cdc6_C CDT1 CENPB CG-1 CHK
CHROMO Cir_N CKS Copper-fist CPDc CPSF73-100_C CRM1_C CSP
CTD Cu_FIST CUT D5_N DDE_Tnp_IS1595 DDT DEXDc DM
DMAP_binding DNA_mis_repair DP DSHCT DSRM DSX_dimer DUF1087 DUF1693
DUF1744 DUF4210 DUF4217 DWA DWB DZF eIF5C ELK
ELM2 Elp3 ENDO3c Endonuclease_NS ERCC4 ETS EXOIII FACT-Spt16_Nlob
Fapy_DNA_glyco FBD FCD FES FH Fmp27_GFWDK Fmp27_SW Fmp27_WPPW
Ftsk_gamma Fungal_trans FYRC FYRN G_patch GAGA_bind GIYc H15
H2A H2B H2TH H3 H4 HALZ HDAC_interact HELICc
HhH1 HhH2 HLH HMG HMG17 HNHc HNS HOLI
HOX HRDC HSA HSF HTH_ARAC HTH_ARSR HTH_ASNC HTH_CRP
HTH_DEOR HTH_DTXR HTH_GNTR HTH_ICLR HTH_LACI HTH_LUXR HTH_MARR HTH_MERR
HTH_XRE IBN_N IENR1 IENR2 IPT IRF IRO JmjC
JmjN KASH KAT11 KH Kin17_mid KNOX1 KNOX2 KOW
KRAB Ku78 LAG1_DNAbind LEM LIGANc LNS2 LytTR MA3
MADF MADS MamL-1 MBD MBT MCM Mcm10 Med12
Mre11_DNA_bind MutH MutL_C MUTSac MUTSd N-SET Nbs1_C NEUZ
NGN NOSIC NUC194 NurA ORANGE PADR1 ParB PAX
PAZ PHD Piwi Plus3 POL3Bc POLAc POLBc POLIIIAc
POLXc POP4 PostSET POU POX PRE_C2HC PreSET PriCT_1
Prim-Pol PRY PSP PUA PUG PUR Resolvase RFX5_DNA_bdg
Rho_N RIBOc RPOL4c RPOL8c RPOL9 RPOL_N RPOLA_N RPOLCX
RPOLD RPR RQC RRM RTC4 Rtt106 RWD S4
SAND SANT SAP SCAN SET SFM Skp1 Sm
SMC_hinge SMR SnAC Spc7_N SPK SpoVT_AbrB SPT16 SPT2
SRA STE TAF TAN Tankyrase_bdg_C TBOX TDU TEA
Telo_bind Telomerase_RBD TFIIE TFS2M TFS2N THAP Thymopoietin TIFY
TOP1Ac TOP1Bc TOP2c TOP4c TOPEUc TOPRIM Tower Trans_reg_C
TRCF Ubox UDG UME UTRA XPGI XPGN YaeQ
YccV-like YL1_C YqgFc Zalpha Zds_C zf-AD zf-PARP ZnF_BED
ZnF_C2C2 ZnF_C2H2 ZnF_C2HC ZnF_C3H1 ZnF_C4 ZnF_CHCC ZnF_DBF ZnF_GATA
ZnF_NFX ZnF_PMZ ZnF_Rad18 ZnF_U1
Extracellular
A2M A2M_N_2 A2M_recep A4_EXTRA A_amylase_inhib AAI Aamy Aamy_C
ACR ACTH_domain Aerolysin Agglutinin AIP3 ALBUMIN AMA-1 Amb_all
Amb_V_allergen Ami_2 Ami_3 AMOP ANATO Antimicrobial21 APPLE Asparaginase
Autotransporter B_lectin Bet_v_1 BID_1 BID_2 BON BowB BPI1
BPI2 btg1 C1Q C345C C4 C6 CA Cache_2
CADG CALCITONIN CASH CBD_II CBD_IV CCP CFEM CHASE
CHASE2 CHRD ChtBD1 ChtBD2 ChtBD3 ChW CLa CLb
CLECT CLIP CNX Col_cuticle_N COLFI COLIPASE Connexin_CCC CRF
CSF2 CT CUB Cutinase CW CY CysPc DEFSN
DISIN DM4_12 DM6 DNaseIc DoH DSL EGF EGF_CA
EGF_Lam EGF_like Elicitin END EPEND EPH_lbd Excalibur FA58C
FAS1 FBG fCBD FGF Fib_alpha FIMAC Flo11 Flu_M1_C
FN1 FN2 FN3 FOLN FRI FTP FU G2F
G5 GA Galanin GASTRIN GEL GHA GHB GLA
GLECT GLUCA Glyco_10 Glyco_18 Glyco_25 Glyco_32 GPS GRAN
Haemagg_act HBM HintC HintN HormR HX HYDRO IB
ICA69 IFabd IG IG_like IGc1 IGc2 IGv IL1
IL10 IL2 IL4_13 IL6 IL7 IlGF INB Inhibitor_I29
Int_alpha Integrin_B_tail Jacalin JHBP KAZAL Kelch Knot1 KR
KU LamB LamG LamGL LamNT LCCL LDLa LIF_OSM
LINK LPD_N LRR LRR_BAC LRR_CC LRR_RI LRR_SD22 LRR_TYP
LRRCT LRRNT LU LY LysM LYZ1 LYZ2 MACPF
MAM MANEC MATH MD MHC_II_alpha MHC_II_beta ML N-glycanase_N
NAT_PEP NEAT NGF NH NIDO NL NMU NPP
NRF NTR NUC OLF Op_neuropeptide OSTEO P4Hc PA2c
PAH PAN_AP PbH1 PBP5_C PBPb PBPe PD PDGF
Pept_C1 PGA_cap PGRP PhBP PKD PLP PQQ PRP
PSA PSI PTH PTI PTN PTX RICIN RNAse_Pc
s48_45 SAA SAPA SapB SCP SCPU SCY SEA
SEL1 Sema SERPIN SF_P SH3b ShKT SO SR
STI STN SVWC TECPR TGFB THN TK TNF
TNFR TR_FER TR_THY Tryp_SPc TSP1 TSPc TSPN TY
UTG VIT VPS10 VWA VWC VWD WAP WIF
WNT1 WR1 WSC X8 XTALbg YARHG Zn_dep_PLPC Zn_pept
ZnMc ZP
Others
6PGD AAA AAA_PrkA AARP2CN ACTIN AD Ad_cyc_g-alpha Adenylsucc_synt
AdoHcyase AdoHcyase_NAD ADSL_C AFOR_N Agenet Agouti AgrB AgrD
Agro_virD5 AGTRAP Aha1_N AHS1 AHS2 AIF_C AIRC AKAP_110
Ala_racemase_C ALAD AlaDh_PNT_C AlaDh_PNT_N AlcB Ald_Xan_dh_C Aldolase_II alkPPc
Alpha-amyl_C2 Alpha-L-AF_C Alpha-mann_mid Alpha_adaptinC2 Alpha_kinase Alpha_L_fucos Alpha_TIF Amelin
Amelogenin AMP_N AMPKBI ANX AP3B1_C AP4E_app_platf APC10 Arfaptin
Arg_tRNA_synt_N Arrestin_C ASCH Aspzincin_M35 B12-binding_2 B2-adapt-app_C B3_4 B5
Bac_DnaA_C Bac_rhodopsin BACK BAR BATS BCS1_N Beach Beta-Casp
Beta-TrCP_D BetaGal_dom2 Bgal_small_N BHL Biotin_carb_C BLUF BLVR BMC
BRICHOS Brix BRO1 BTAD BTB Btz BURP c-SKI_SMAD_bind
C8 Ca_chan_IQ CactinC_cactus CAD Cadherin_pro calpain_III CaM_binding CaMBD
CAMSAP_CKK Candida_ALS_N CAP10 CAP_GLY Carb_anhydrase CARP CAT Catalase
Cation_ATPase_N CBM49 CBM_10 CBM_2 CBM_25 CBM_3 CBM_X CBS
CDC37_C CDC37_M CDC37_N CDC48_2 CDC48_N Cg6151-P CGGC CHAD
CHB_HEX ChSh CHZ Citrate_ly_lig CK_II_beta CLH ClpB_D2-small CM_2
CO_deh_flav_C CoA_binding CoA_trans CobW_C COG6 CorC_HlyC Costars CP12
CpcD Cpl-7 Cpn10 CPSase_L_D3 CPSase_sm_chain CPW_WPC CRA CRAL_TRIO_N
CRISPR_assoc CRS1_YhbY CTLH CTNS CUE Cullin_Nedd8 Cupin_1 CVNH
cwf21 CXC CxxC_CXXC_SSSS Cyanate_lyase CYCLIN CYTH D-ser_dehydrat Dabb
Dak1_2 Dak2 DALR_1 DALR_2 DBB DBC1 DBP10CT DBR1
DCD DCP2 DCX dDENN DDHD DDRGK DELLA DENN
DeoC DeoRC DHDPS DHHA2 DIL DIRP DKCLD DM10
DM11 DM13 DM14 DM15 DM16 DM3 DM5 DM7
DM8 DM9 DnaG_DnaB_bind DnaJ DPBB_1 Drf_FH3 Drf_GBD DRY_EERY
DTW DUF1041 DUF1086 DUF1220 DUF1237 DUF1338 DUF1518 DUF167
DUF1704 DUF1713 DUF1716 DUF1719 DUF1741 DUF1751 DUF1767 DUF1771
DUF1785 DUF1856 DUF1866 DUF1899 DUF1900 DUF1907 DUF1943 DUF1944
DUF3160 DUF3385 DUF3402 DUF3454 DUF3585 DUF3635 DUF3700 DUF4187
DUF4205 DUF4206 DUF4208 DUF663 DUF862 DUSP DWNN DysFC
DysFN E2_bind EB_dh ECIST_Cterm EF-1_beta_acid EF1_GNE EF1G EFG_C
EFG_IV efhand_Ca_insen EFP eIF1a eIF2B_5 eIF3_N eIF6 EKR
ELFV_dehydrog Elong-fact-P_C EMP24_GP25L Enolase_C Enolase_N ENT eRF1_1 ETF
EZ_HEAT FA FABD FANCL_C FATC FBA FDF FDX-ACB
Fe_hyd_SSU FeoA FerA FerB FerI FERM_C Fibrillarin FISNA
FIST_C FKS1_dom1 Flavin_Reduct Flavokinase FMN_bind Fn3_like FolB FoP_duplication
Frataxin_Cyay FRG FSA_C FTCD FTCD_N FTO_NTD FtsA G3P_acyltransf
G8 G_gamma Gal-bind_lectin GAL4 GARS_A GARS_C GATase_5 GatB_Yqey
GCK GDNF Germane GIDA_assoc_3 GIT Gln-synt_C GluR_Homer-bdg Gp_dh_N
Grip GYF GYR H-kinase_dim HA2 HABP4_PAI-RBP1 Haem_bd Haem_oxygenase_2
Haemolytic HAT HDc HEPN HIRAN HTTM HWE_HK IBR
IDEAL IG_FLMN IGR IKKbetaNEMObind IMPDH Integrin_b_cyt IRF-3 IRS
Iso_dh JAB_MPN Jag_N Josephin K167R KaiA KaiB KAP
KapB KbaA KilA-N KIND KLRAQ KRAP_IP3R_bind KRBA1 L51_S25_CI-B8
LA LAB_N Lactamase_B LAMTOR LANC_like LeuA_dimer Leuk-A4-hydro_C LH2
Lig_chan-Glu_bd Lipid_DES LisH LITAF LON Longin LRRcap LSM14
LsmAD M16C_associated M60-like Mab-21 Mac Mad3_BUB1_I Mago-bind MAGUK_N_PEST
malic Malic_M MAPKK1_Int Matrilin_ccoil MbtH MGS MgtE_N MIF4G
MIT MltA MoCF_biosynth Molybdop_Fe4S4 MORN MR_MLE Mterf N1221
N2227 NADH-G_4Fe-4S_3 NADH_4Fe-4S NDK NEBU Nfu_N NIL NOD
NODP NPCBM OMPdecase OmpH P-II PA14 PAM PAW
PB1 PCRF PEHE PepX_C PepX_N PGAM PHB PhnA_Zn_Ribbon
PIG-X PINc PINT PIP49_N PKS_AT PKS_DH PKS_ER PKS_KR
PKS_KS PKS_MT PKS_PP PKS_PP_betabranch PKS_TE PLEC PlsC PMEI
PolyA PP2C_SIG Prim_Zn_Ribbon Pro-kuma_activ Pro_CA PROF ProQ ProRS-C_1
Proteasome_A_N PSN PTPlike_phytase Pumilio PWI PWWP PYNP_C PYRIN
QLQ R3H rADc RAP Rapamycin_bind Raptor_N Ras_bdg_2 RasGEF_N_2
RelA_SpoT RES RESP18 RICTOR_M RICTOR_N RICTOR_phospho RICTOR_V RINGv
RL11 RNB Robl_LC7 RPEL RuBisCO_small RUN S1 SAF
SAM_PNT SATase_N Sec3-PIP2_bind Sec63 SecA_DEAD SecA_PP_bind Semialdhyde_dh SEP
SHR3_chaperone SMI1_KNR4 SNc SOCS_box Sorb Spo7_2_N SPOB_ab SpoU_sub_bind
SprT SRP54 SRP54_N STI1 SWAP SWIB SynN T5orf172
TAFH TAP_C Tet_JBP TGc THEG THUMP THY TilS_C
Tim44 TLC TLDc TOG TPK_B1_binding TPR Transket_pyr tRNA_SAD
TRP_N Tubulin Tubulin_C TUDOR UAS UBA_e1_C uDENN UDPG_MGDP_dh_C
UIM UreE_C UreE_N V4R VKc VRR_NUC WGR WHEP-TRS
WHy WRKY WSN WWE Y1_Tnp YajC YceI zf-3CxxC
zf-C4_ClpX ZipA_C ZM ZnF_CDGSH ZnF_TAZ ZnF_TTF ZnF_UBR1 Zpr1

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