There are 1009 domains in the SMART database.

Signalling
14_3_3 4.1m acidPPc ADF ANK ARF ArfGap ARM
B41 B561 B_lectin BAG BH4 BIR BTK C1
C2 Calx_beta CARD CASc CH CheW CNH cNMP
CULLIN CYCc DAGKa DAGKc DAX DEATH DED DEP
DSPc DYNc EAL EFh EH ENTH FBOX FCH
FF FH2 FHA FIST 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 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 BTP 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
D5_N DDT DEXDc DM DSRM DWA DWB DZF
eIF5C Elp3 ENDO3c Endonuclease_NS ERCC4 ETS EXOIII Fapy_DNA_glyco
FBD FCD FES FH Ftsk_gamma Fungal_trans FYRC FYRN
G_patch GIYc H15 H2A H2B 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 KH KOW KRAB Ku78 LEM
LIGANc LNS2 LytTR MA3 MADF MADS MBD MBT
MCM MutH MutL_C MUTSac MUTSd NEUZ NGN NOSIC
NurA ORANGE 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 Rho_N RIBOc RPOL4c RPOL8c RPOL9
RPOLA_N RPOLCX RPOLD RPR RQC RRM RWD S4
SAND SANT SAP SCAN SET SFM Skp1 Sm
SMC_hinge SMR SPK SpoVT_AbrB SPT2 SRA STE TAF
TBOX TDU TEA Telo_bind Telomerase_RBD TFIIE TFS2M TFS2N
THAP TIFY TOP1Ac TOP1Bc TOP2c TOP4c TOPEUc TOPRIM
Trans_reg_C TRCF Ubox UDG UME UTRA XPGI XPGN
YccV-like YL1_C YqgFc Zalpha zf-AD 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
A4_EXTRA A_amylase_inhib AAI Aamy Aamy_C ACR Aerolysin Agglutinin
AIP3 ALBUMIN AMA-1 Amb_all Amb_V_allergen Ami_2 Ami_3 AMOP
ANATO 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 CW CY
CysPc DEFSN DISIN DM4_12 DM6 DNaseIc DoH DSL
EGF EGF_CA EGF_Lam EGF_like END EPEND EPH_lbd Excalibur
FA58C FAS1 FBG fCBD FGF FIMAC Flu_M1_C FN1
FN2 FN3 FOLN FRI FTP FU G2F GA
Galanin GASTRIN GEL GHA GHB GLA GLECT GLUCA
Glyco_10 Glyco_18 Glyco_25 Glyco_32 GPS GRAN Haemagg_act HintC
HintN HormR HX HYDRO IB IFabd IG IG_like
IGc1 IGc2 IGv IL1 IL10 IL2 IL4_13 IL6
IL7 IlGF INB Inhibitor_I29 Int_alpha 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 NAT_PEP NEAT NGF NH NIDO NL
NMU NRF NTR NUC OLF 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 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 Zn_dep_PLPC Zn_pept ZnMc ZP
Others
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 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 Arfaptin Arg_tRNA_synt_N Arrestin_C ASCH 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
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 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 CxxC_CXXC_SSSS
CYCLIN Dabb DALR_1 DALR_2 DCD DCX dDENN DENN
DM10 DM11 DM13 DM14 DM15 DM16 DM3 DM5
DM7 DM8 DM9 DnaG_DnaB_bind DnaJ DPBB_1 DUSP DysFC
DysFN EB_dh EF1_GNE EFG_C EFG_IV eIF1a eIF2B_5 eIF6
EKR ELFV_dehydrog Elong-fact-P_C ETF EZ_HEAT FABD FDX-ACB Fe_hyd_SSU
FeoA Flavin_Reduct Flavokinase FMN_bind FolB FRG FtsA Gal-bind_lectin
GAL4 GatB_Yqey GDNF Germane GIT Gp_dh_N Grip GYF
GYR HA2 HAT HDc HEPN HIRAN HTTM HWE_HK
IBR IDEAL IG_FLMN JAB_MPN KIND L51_S25_CI-B8 LA Lactamase_B
LeuA_dimer LH2 Lig_chan-Glu_bd LisH LITAF LON LRRcap Mad3_BUB1_I
Malic_M MbtH MGS MgtE_N MIF4G MIT MltA MoCF_biosynth
Molybdop_Fe4S4 MORN MR_MLE Mterf NADH-G_4Fe-4S_3 NADH_4Fe-4S NDK NEBU
Nfu_N NIL NPCBM OMPdecase OmpH P-II PA14 PAM
PAW PB1 PCRF PepX_C PepX_N PGAM PHB PhnA_Zn_Ribbon
PIG-X PINc PINT PKS_AT PKS_DH PKS_ER PKS_KR PKS_KS
PKS_MT PKS_PP 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
Pumilio PWI PWWP PYNP_C QLQ R3H rADc RAP
RelA_SpoT RES RINGv RL11 RNB Robl_LC7 RPEL RuBisCO_small
RUN S1 SAF SAM_PNT SATase_N SEC63 Sec63 SecA_DEAD
SecA_PP_bind Semialdhyde_dh SEP SHR3_chaperone SMI1_KNR4 SNc SOCS_box Sorb
SpoU_sub_bind SprT SRP54 SRP54_N STI1 SWAP SWIB SynN
T5orf172 TAFH TAP_C TGc THEG THUMP THY TilS_C
Tim44 TLC TLDc TPK_B1_binding TPR Transket_pyr tRNA_SAD 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 YceI zf-C4_ClpX ZipA_C ZM ZnF_CDGSH ZnF_TAZ
ZnF_TTF ZnF_UBR1 Zpr1

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