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Numbers A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
AccessionPfam codeDescription
PF04564U-boxU-box domain
PF12220U1snRNP70_NU1 small nuclear ribonucleoprotein of 70kDa MW N terminal
PF12397U3snoRNP10U3 small nucleolar RNA-associated protein 10
PF08640U3_assoc_6U3 small nucleolar RNA-associated protein 6
PF08297U3_snoRNA_assocU3 snoRNA associated
PF10597U5_2-snRNA_bdgU5-snRNA binding site 2 of PrP8
PF10596U6-snRNA_bdgU6-snRNA interacting domain of PrP8
PF03064U79_P34HSV U79 / HCMV P34
PF08449UAAUAA transporter family
PF14732UAE_UbLUbiquitin/SUMO-activating enzyme ubiquitin-like domain
PF05234UAF_Rrn10UAF complex subunit Rrn10
PF14451Ub-Mut7CMut7-C ubiquitin
PF03658Ub-RnfHRnfH family Ubiquitin
PF14814UB2HBifunctional transglycosylase second domain
PF00627UBAUBA/TS-N domain
PF02134UBACTRepeat in ubiquitin-activating (UBA) protein
PF08587UBA_2Ubiquitin associated domain (UBA)
PF09288UBA_3Fungal ubiquitin-associated domain
PF14555UBA_4UBA-like domain
PF09358UBA_e1_CUbiquitin-activating enzyme e1 C-terminal domain
PF10585UBA_e1_thiolCysUbiquitin-activating enzyme active site
PF01040UbiAUbiA prenyltransferase family
PF01977UbiD3-octaprenyl-4-hydroxybenzoate carboxy-lyase
PF01209Ubie_methyltranubiE/COQ5 methyltransferase family
PF09145Ubiq-assocUbiquitin-associated
PF09165Ubiq-Cytc-red_NUbiquinol-cytochrome c reductase 8 kDa, N-terminal
PF00240ubiquitinUbiquitin family
PF14560Ubiquitin_2Ubiquitin-like domain
PF14836Ubiquitin_3Ubiquitin-like domain
PF03981Ubiq_cyt_C_chapUbiquinol-cytochrome C chaperone
PF14223UBN2gag-polypeptide of LTR copia-type
PF14227UBN2_2gag-polypeptide of LTR copia-type
PF14244UBN2_3gag-polypeptide of LTR copia-type
PF14075UBN_ABUbinuclein conserved middle domain
PF00789UBXUBX domain
PF00443UCHUbiquitin carboxyl-terminal hydrolase
PF13423UCH_1Ubiquitin carboxyl-terminal hydrolase
PF11613UCN2Agonist of corticotropin releasing factor R2, Urocortin-2
PF02939UcrQUcrQ family
PF02271UCR_14kDUbiquinol-cytochrome C reductase complex 14kD subunit
PF08997UCR_6-4kDUbiquinol-cytochrome C reductase complex, 6.4kD protein
PF10399UCR_Fe-S_NUbiquitinol-cytochrome C reductase Fe-S subunit TAT signal
PF02320UCR_hingeUbiquinol-cytochrome C reductase hinge protein
PF02921UCR_TMUbiquinol cytochrome reductase transmembrane region
PF05365UCR_UQCRX_QCR9Ubiquinol-cytochrome C reductase, UQCRX/QCR9 like
PF03456uDENNuDENN domain
PF03167UDGUracil DNA glycosylase superfamily
PF06427UDP-g_GGTaseUDP-glucose:Glycoprotein Glucosyltransferase
PF01704UDPGPUTP--glucose-1-phosphate uridylyltransferase
PF00201UDPGTUDP-glucoronosyl and UDP-glucosyl transferase
PF00984UDPG_MGDP_dhUDP-glucose/GDP-mannose dehydrogenase family, central domain
PF03720UDPG_MGDP_dh_CUDP-glucose/GDP-mannose dehydrogenase family, UDP binding domain
PF03721UDPG_MGDP_dh_NUDP-glucose/GDP-mannose dehydrogenase family, NAD binding domain
PF15456Uds1Up-regulated During Septation
PF05743UEVUEV domain
PF08694UFC1Ubiquitin-fold modifier-conjugating enzyme 1
PF03152UFD1Ubiquitin fusion degradation protein UFD1
PF10408Ufd2P_coreUbiquitin elongating factor core
PF03671Ufm1Ubiquitin fold modifier 1 protein
PF02809UIMUbiquitin interaction motif
PF02512UKVirulence determinant
PF11094UL11Membrane-associated tegument protein
PF08196UL2UL2 protein
PF10682UL40Glycoprotein of human cytomegalovirus HHV-5
PF12522UL73_NCytomegalovirus glycoprotein N terminal
PF06734UL97UL97
PF05685Uma2Putative restriction endonuclease
PF04817Umbravirus_LDMUmbravirus long distance movement (LDM) family
PF08064UMEUME (NUC010) domain
PF05348UMP1Proteasome maturation factor UMP1
PF05822UMPH-1Pyrimidine 5'-nucleotidase (UMPH-1)
PF07593UnbV_ASPICASPIC and UnbV
PF05216UNC-50UNC-50 family
PF14776UNC-79Cation-channel complex subunit UNC-79
PF05978UNC-93Ion channel regulatory protein UNC-93
PF15435UNC119_bdgUNC119-binding protein C5orf30 homologue
PF11701UNC45-centralMyosin-binding striated muscle assembly central
PF09720Unstab_antitoxPutative addiction module component
PF11543UN_NPL4Nuclear pore localisation protein NPL4
PF00021UPAR_LY6u-PAR/Ly-6 domain
PF00919UPF0004Uncharacterized protein family UPF0004
PF03649UPF0014Uncharacterised protein family (UPF0014)
PF01169UPF0016Uncharacterized protein family UPF0016
PF01170UPF0020Putative RNA methylase family UPF0020
PF01205UPF0029Uncharacterized protein family UPF0029
PF01894UPF0047Uncharacterised protein family UPF0047
PF01458UPF0051Uncharacterized protein family (UPF0051)
PF01933UPF0052Uncharacterised protein family UPF0052
PF02130UPF0054Uncharacterized protein family UPF0054
PF01893UPF0058Uncharacterised protein family UPF0058
PF02694UPF0060Uncharacterised BCR, YnfA/UPF0060 family
PF02696UPF0061Uncharacterized ACR, YdiU/UPF0061 family
PF01980UPF0066Uncharacterised protein family UPF0066
PF03702UPF0075Uncharacterised protein family (UPF0075)
PF02367UPF0079Uncharacterised P-loop hydrolase UPF0079
PF03652UPF0081Uncharacterised protein family (UPF0081)
PF01868UPF0086Domain of unknown function UPF0086
PF03653UPF0093Uncharacterised protein family (UPF0093)
PF02021UPF0102Uncharacterised protein family UPF0102
PF03706UPF0104Uncharacterised protein family (UPF0104)
PF03657UPF0113Uncharacterised protein family (UPF0113)
PF03350UPF0114Uncharacterized protein family, UPF0114
PF01594UPF0118Domain of unknown function DUF20
PF03661UPF0121Uncharacterised protein family (UPF0121)
PF04297UPF0122Putative helix-turn-helix protein, YlxM / p13 like
PF03458UPF0126UPF0126 domain
PF03673UPF0128Uncharacterised protein family (UPF0128)
PF03677UPF0137Uncharacterised protein family (UPF0137)
PF03669UPF0139Uncharacterised protein family (UPF0139)
PF03686UPF0146Uncharacterised protein family (UPF0146)
PF03685UPF0147Uncharacterised protein family (UPF0147)
PF03695UPF0149Uncharacterised protein family (UPF0149)
PF03681UPF0150Uncharacterised protein family (UPF0150)
PF03672UPF0154Uncharacterised protein family (UPF0154)
PF03682UPF0158Uncharacterised protein family (UPF0158)
PF03690UPF0160Uncharacterised protein family (UPF0160)
PF03687UPF0164Uncharacterised protein family (UPF0164)
PF03691UPF0167Uncharacterised protein family (UPF0167)
PF03665UPF0172Uncharacterised protein family (UPF0172)
PF03683UPF0175Uncharacterised protein family (UPF0175)
PF03684UPF0179Uncharacterised protein family (UPF0179)
PF03698UPF0180Uncharacterised protein family (UPF0180)
PF03701UPF0181Uncharacterised protein family (UPF0181)
PF03699UPF0182Uncharacterised protein family (UPF0182)
PF03676UPF0183Uncharacterised protein family (UPF0183)
PF03670UPF0184Uncharacterised protein family (UPF0184)
PF05250UPF0193Uncharacterised protein family (UPF0193)
PF05251UPF0197Uncharacterised protein family (UPF0197)
PF05254UPF0203Uncharacterised protein family (UPF0203)
PF05255UPF0220Uncharacterised protein family (UPF0220)
PF05256UPF0223Uncharacterised protein family (UPF0223)
PF05728UPF0227Uncharacterised protein family (UPF0227)
PF05727UPF0228Uncharacterised protein family (UPF0228)
PF06062UPF0231Uncharacterised protein family (UPF0231)
PF06781UPF0233Uncharacterised protein family (UPF0233)
PF06782UPF0236Uncharacterised protein family (UPF0236)
PF06783UPF0239Uncharacterised protein family (UPF0239)
PF06784UPF0240Uncharacterised protein family (UPF0240)
PF06785UPF0242Uncharacterised protein family (UPF0242)
PF06786UPF0253Uncharacterised protein family (UPF0253)
PF06787UPF0254Uncharacterised protein family (UPF0254)
PF06788UPF0257Uncharacterised protein family (UPF0257)
PF06789UPF0258Uncharacterised protein family (UPF0258)
PF06790UPF0259Uncharacterised protein family (UPF0259)
PF06792UPF0261Uncharacterised protein family (UPF0261)
PF06793UPF0262Uncharacterised protein family (UPF0262)
PF06794UPF0270Uncharacterised protein family (UPF0270)
PF08745UPF0278UPF0278 family
PF08594UPF0300Uncharacterised protein family (UPF0300)
PF08864UPF0302UPF0302 domain
PF13980UPF0370Uncharacterised protein family (UPF0370)
PF15475UPF0444Transmembrane protein C12orf23, UPF0444
PF15136UPF0449Uncharacterised protein family UPF0449
PF12640UPF0489UPF0489 domain
PF11703UPF0506UPF0506
PF15135UPF0515Uncharacterised protein UPF0515
PF15086UPF0542Uncharacterised protein family UPF0542
PF10639UPF0546Uncharacterised protein family UPF0546
PF10571UPF0547Uncharacterised protein family UPF0547
PF10574UPF0552Uncharacterised protein family UPF0552
PF10572UPF0556Uncharacterised protein family UPF0556
PF10577UPF0560Uncharacterised protein family UPF0560
PF10573UPF0561Uncharacterised protein family UPF0561
PF10595UPF0564Uncharacterised protein family UPF0564
PF10561UPF0565Uncharacterised protein family UPF0565
PF15114UPF0640Uncharacterised protein family UPF0640
PF15117UPF0697Uncharacterised protein family UPF0697
PF15092UPF0728Uncharacterised protein family UPF0728
PF14982UPF0731UPF0731 family
PF09416UPF1_Zn_bindRNA helicase (UPF2 interacting domain)
PF04050Upf2Up-frameshift suppressor 2
PF14681UPRTaseUracil phosphoribosyltransferase
PF06603UpxZUpxZ family of transcription anti-terminator antagonists
PF00179UQ_conUbiquitin-conjugating enzyme
PF10441Urb2Urb2/Npa2 family
PF00449Urease_alphaUrease alpha-subunit, N-terminal domain
PF00699Urease_betaUrease beta subunit
PF00547Urease_gammaUrease, gamma subunit
PF01774UreDUreD urease accessory protein
PF05194UreE_CUreE urease accessory protein, C-terminal domain
PF02814UreE_NUreE urease accessory protein, N-terminal domain
PF01730UreFUreF
PF07168Ureide_permeaseUreide permease
PF04115Ureidogly_hydroUreidoglycolate hydrolase
PF01014UricaseUricase
PF09138Urm1Urm1 (Ubiquitin related modifier)
PF01208URO-DUroporphyrinogen decarboxylase (URO-D)
PF01175UrocanaseUrocanase
PF07353Uroplakin_IIUroplakin II
PF02083Urotensin_IIUrotensin II
PF02476US2US2 family
PF02393US22US22 like
PF09753Use1Membrane fusion protein Use1
PF06233UsgUsg-like family
PF00577UsherOuter membrane usher protein
PF04871Uso1_p115_CUso1 / p115 like vesicle tethering protein, C terminal region
PF04869Uso1_p115_headUso1 / p115 like vesicle tethering protein, head region
PF00582UspUniversal stress protein family
PF14533USP7_C2Ubiquitin-specific protease C-terminal
PF12436USP7_ICP0_bdgICP0-binding domain of Ubiquitin-specific protease 7
PF08969USP8_dimerUSP8 dimerisation domain
PF08941USP8_interactUSP8 interacting
PF10625UspBUniversal stress protein B (UspB)
PF05722Ustilago_matingUstilago B locus mating-type protein
PF03253UTUrea transporter
PF01099UteroglobinUteroglobin family
PF03998Utp11Utp11 protein
PF04003Utp12Dip2/Utp12 Family
PF08625Utp13Utp13 specific WD40 associated domain
PF04615Utp14Utp14 protein
PF09384UTP15_CUTP15 C terminal
PF04192Utp21Utp21 specific WD40 associated putative domain
PF10395Utp8Utp8 family
PF07702UTRAUTRA domain
PF03851UvdEUV-endonuclease UvdE
PF02151UVRUvrB/uvrC motif
PF12344UvrBUltra-violet resistance protein B
PF08459UvrC_HhH_NUvrC Helix-hairpin-helix N-terminal
PF00580UvrD-helicaseUvrD/REP helicase N-terminal domain
PF13361UvrD_CUvrD-like helicase C-terminal domain
PF13538UvrD_C_2UvrD-like helicase C-terminal domain
PF11637UvsWATP-dependant DNA helicase UvsW
PF11056UvsYRecombination, repair and ssDNA binding protein UvsY
PF02614UxaCGlucuronate isomerase
PF11803UXS1_NUDP-glucuronate decarboxylase N-terminal
PF03786UxuAD-mannonate dehydratase (UxuA)