Here we list (domains of unknown function) DUFs with suggested similarity to other Pfam domains sorted by D-score (significant rps-blast similarities of a DUF to known domains are not included).
For this analysis the initial DUF sequence set was derived from Pfam18 database, made 80 percent non-redundant, and TM and coiled-coil regions have been masked. This sequence set included 34400 DUF proteins in 1462 families, of which 28 have a fam size below 2 (not suitable for DOUT analysis). The sequence set was analyzed by rps-blast against Pfam and sub-significant hits (E > 0.005, C > 40) have been further evaluated using DOUTfinder. Similarities with a D-score > 24 are listed in warm colors, sim. with D-score > 13 are listed in cold colors. As support for a correct assignment we list the Pfam19 CLANS assignment and distant similarities defined using psi-blast against a nr95 supplemented with PFAM18 sequences were applicable. Out of 86 probable domain similarities defined by DOUT 19 are also supported by a psi-blast hit, 32 are supported by CLANs defined similarity. | |||||
D-score | analysed DUF | distantly similar to | similarity supported by | swisspfam and interpro reports for analysed DUF seqs (domain overlaps reported) |
|
7912.76 | PF06071 DUF933 This domain is found at the C terminus of the YchF GTP-binding protein (Swiss:O13998) and is possibly related to the ubiquitin-like and MoaD/ThiS superfamilies. | PF02824 TGS (cdd|8387) | Psi: 2 hits | ||
7024.16 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF01022 HTH_5 (cdd|15275) | Clans: HTH | ||
1051.20 | PF06027 DUF914 This family consists of several hypothetical proteins of unknown function. Some of the sequences in this family are annotated as being putative membrane proteins. | PF00892 DUF6 (cdd|25647) | Psi: 1 hits Clans: DMT | ||
1033.86 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF01325 Fe_dep_repress (cdd|1869) | Clans: HTH | ||
672.65 | PF05838 DUF847 This family consists of several hypothetical bacterial sequences as well as one viral sequence Swiss:Q9MC03, the function of this family is unknown. | PF01471 PG_binding_1 (cdd|25760) | |||
632.04 | PF03151 DUF250 This family consists entirely of aligned regions from Drosophila melanogaster proteins. Swiss:O49724 contains three repeats of this region. In other proteins, the aligned region is located towards the C-terminus. The function of the aligned region is unknown. | PF00892 DUF6 (cdd|25647) | Clans: DMT | ||
553.19 | PF02001 DUF134 This family of archaeal proteins has no known function. | PF04967 HTH_10 (cdd|17559) | Clans: HTH | ||
545.02 | PF05653 DUF803 This family consists of several eukaryotic proteins of unknown function. | PF00892 DUF6 (cdd|25647) | Clans: DMT | ||
518.71 | PF03193 DUF258 - | PF00009 GTP_EFTU (cdd|22868) | Clans: G-protein | ||
465.93 | PF04311 DUF459 Putative periplasmic protein. | PF00657 Lipase_GDSL (cdd|25580) | Psi: 178 hits | ||
465.54 | PF05636 DUF795 This family consists of several bacterial proteins of unknown function. | PF06574 Flavokinase (cdd|26686) | Psi: 14 hits Clans: Flavokinase | ||
390.08 | PF02001 DUF134 This family of archaeal proteins has no known function. | PF01381 HTH_3 (cdd|23192) | Clans: HTH | ||
276.72 | PF02650 DUF199 - | PF04545 Sigma70_r4 (cdd|23546) | |||
255.27 | PF07605 DUF1568 This entry represents a conserved sequence region found in hypothetical proteins from a wide range of bacteria. Shewenella oneidensis contains multiple members. | PF01797 Transposase_17 (cdd|2325) | |||
249.75 | PF03314 DUF273 - | PF05637 Glyco_transf_34 (cdd|26404) | Psi: 48 hits | ||
222.40 | PF02001 DUF134 This family of archaeal proteins has no known function. | PF02954 HTH_8 (cdd|17248) | Clans: HTH | ||
218.87 | PF04079 DUF387 This family of conserved bacterial proteins are thought to possibly be helix-turn-helix type transcriptional regulators. | PF01047 MarR (cdd|15281) | Psi: 1 hits | ||
201.81 | PF07892 DUF1667 Hypothetical archaeal and bacterial proteins make up this family. A few proteins are annotated as being potential metal-binding proteins, and in fact the members of this family have four highly conserved cysteine residues, but no further literature evidence was found in this regard. | PF04879 Molybdop_Fe4S4 (cdd|16175) | Psi: 2 hits | ||
198.38 | PF05976 DUF893 This family consists of several putative bacterial membrane proteins of unknown function. | PF01027 UPF0005 (cdd|25673) | Psi: 24 hits | ||
194.52 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF01475 FUR (cdd|23216) | Clans: HTH | ||
175.37 | PF06028 DUF915 This family consists of several bacterial proteins of unknown function. Members of this family have an alpha/beta hydrolase fold. | PF01764 Lipase_3 (cdd|25817) | Clans: AB_hydrolase | ||
156.99 | PF04524 DUF586 This family contains a conserved region in several bacterial proteins of unknown function. | PF03544 TonB (cdd|9504) | |||
156.46 | PF07050 DUF1333 This family consists of several hypothetical bacterial proteins of around 145 residues in length. Members of this family appear to be specific to the Orders Bacillales and Lactobacillales. The function of this family is unknown. | PF06133 DUF964 (cdd|25006) | Psi: 23 hits | ||
155.91 | PF06075 DUF936 This family consists of several hypothetical proteins from Arabidopsis thaliana and Oryza sativa. The function of this family is unknown. | PF04057 Rep-A_N (cdd|17430) | |||
152.55 | PF01796 DUF35 This domain has no known function and is found in conserved hypothetical archaeal and bacterial proteins. The domain is approximately 120 amino acids long. The domain is duplicated in Swiss:O53566. | PF04035 RpoE2 (cdd|26175) | |||
144.43 | PF06862 DUF1253 This family represents the C-terminal portion (approximately 500 residues) of several hypothetical eukaryotic proteins of unknown function. | PF00270 DEAD (cdd|25466) | |||
127.63 | PF04640 DUF597 This family includes a conserved region in several uncharacterised plant proteins. | PF00643 zf-B_box (cdd|16789) | |||
121.91 | PF03141 DUF248 Members of this family of hypothetical plant proteins are probably methyltransferases: several of the aligned sequences either match the methyltransferase profile Profile:PS50124, or contain a SAM-binding motif Profile:PS50193. Swiss:Q9ZQ84 contains both. Several family members are described as ankyrin like. | PF01728 FtsJ (cdd|17031) | Clans: Methyltransfer | ||
112.19 | PF05153 DUF706 Family of uncharacterised eukaryotic function. Some members have a described putative function, but a common theme is not evident. | PF01966 HD (cdd|25853) | |||
110.27 | PF05301 DUF738 This family consists of several uncharacterised eukaryotic proteins of unknown function. | PF00583 Acetyltransf_1 (cdd|25558) | Clans: Acyltransferase | ||
103.83 | PF05903 DUF862 This family consists of the N terminal portion of several eukaryotic sequences and is found in both animals and plants. The function of this family is unknown. | PF04970 NC (cdd|17561) | |||
102.67 | PF06877 DUF1260 This family consists of several hypothetical bacterial proteins of around 120 residues in length. The function of this family is unknown. | PF05117 DUF695 (cdd|16412) | |||
101.58 | PF06171 DUF984 Family of bacterial proteins with unknown function. | PF06164 DUF978 (cdd|25037) | Clans: PUA | ||
96.66 | PF06764 DUF1223 This family consists of several hypothetical proteins of around 250 residues in length which are found in both plants and bacteria. The function of this family is unknown. | PF00462 Glutaredoxin (cdd|23000) | |||
94.96 | PF03961 DUF342 This family of bacterial proteins has no known function. The proteins are in the region of 500-600 amino acid residues in length. | PF03775 MinC_C (cdd|26139) | |||
87.15 | PF05703 DUF828 This family consists of several plant proteins of unknown function. | PF00169 PH (cdd|25426) | |||
85.96 | PF03141 DUF248 Members of this family of hypothetical plant proteins are probably methyltransferases: several of the aligned sequences either match the methyltransferase profile Profile:PS50124, or contain a SAM-binding motif Profile:PS50193. Swiss:Q9ZQ84 contains both. Several family members are described as ankyrin like. | PF05148 Methyltransf_8 (cdd|26352) | Clans: Methyltransfer | ||
85.95 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF00126 HTH_1 (cdd|25406) | Clans: HTH | ||
85.88 | PF03141 DUF248 Members of this family of hypothetical plant proteins are probably methyltransferases: several of the aligned sequences either match the methyltransferase profile Profile:PS50124, or contain a SAM-binding motif Profile:PS50193. Swiss:Q9ZQ84 contains both. Several family members are described as ankyrin like. | PF05401 NodS (cdd|23627) | Clans: Methyltransfer | ||
80.71 | PF03781 DUF323 This presumed domain is found in bacterial and eukaryotic proteins. In some cases these proteins also contain a protein kinase domain. The function of this domain is unknown. The domain has also been found in eukaryotic proteins [1] required for post-translational sulphatase modification. | PF00193 Xlink (cdd|760) | |||
75.66 | PF03195 DUF260 - | PF02151 UVR (cdd|17099) | |||
71.92 | PF07227 DUF1423 This family represents a conserved region approximately 500 residues long within a number of Arabidopsis thaliana proteins of unknown function. | PF00628 PHD (cdd|24448) | Psi: 4 hits | ||
67.80 | PF06500 DUF1100 This family consists of several hypothetical bacterial proteins of unknown function. Members of this family have an alpha/beta hydrolase fold. | PF00756 Esterase (cdd|25605) | Clans: AB_hydrolase | ||
63.27 | PF04174 DUF407 - | PF02842 GARS_B (cdd|8395) | |||
62.53 | PF05990 DUF900 This family consists of several hypothetical proteins of unknown function mostly found in Rhizobium species. Members of this family have an alpha/beta hydrolase fold. | PF01764 Lipase_3 (cdd|25817) | Clans: AB_hydrolase | ||
60.81 | PF01863 DUF45 This protein has no known function. Members are found in some archaebacteria, as well as Helicobacter pylori. The proteins are 190-240 amino acids long, with the C terminus being the most conserved region, containing three conserved histidines. This motif is similar to that found in Zinc proteases, suggesting that this family may also be proteases. | PF06114 DUF955 (cdd|26477) | |||
59.74 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF01726 LexA_DNA_bind (cdd|2256) | Clans: HTH | ||
57.19 | PF06164 DUF978 This family consists of several hypothetical bacterial proteins of unknown function. | PF04266 DUF437 (cdd|26224) | Clans: PUA | ||
56.94 | PF06104 DUF949 This family consists of several hypothetical bacterial proteins of unknown function. | PF03734 ErfK_YbiS_YhnG (cdd|26133) | Psi: 187 hits | ||
56.64 | PF04590 DUF595 This family represents a conserved region, found in several Caenorhabditis elegans proteins. | PF00685 Sulfotransfer_1 (cdd|25588) | |||
53.15 | PF06735 DUF1210 This family represents a conserved region within plant proline-rich proteins. | PF01190 Pollen_Ole_e_I (cdd|7934) | |||
52.40 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF02082 Rrf2 (cdd|4677) | Clans: HTH | ||
51.63 | PF03141 DUF248 Members of this family of hypothetical plant proteins are probably methyltransferases: several of the aligned sequences either match the methyltransferase profile Profile:PS50124, or contain a SAM-binding motif Profile:PS50193. Swiss:Q9ZQ84 contains both. Several family members are described as ankyrin like. | PF03291 Pox_MCEL (cdd|15532) | Clans: Methyltransfer | ||
50.03 | PF07223 DUF1421 This family represents a conserved region approximately 350 residues long within a number of plant proteins of unknown function. | PF00627 UBA (cdd|23047) | |||
49.05 | PF06244 DUF1014 This family consists of several hypothetical eukaryotic proteins of unknown function. | PF00505 HMG_box (cdd|23011) | Clans: HMG-box | ||
48.55 | PF01863 DUF45 This protein has no known function. Members are found in some archaebacteria, as well as Helicobacter pylori. The proteins are 190-240 amino acids long, with the C terminus being the most conserved region, containing three conserved histidines. This motif is similar to that found in Zinc proteases, suggesting that this family may also be proteases. | PF03926 DUF335 (cdd|8853) | Psi: 14 hits | ||
46.26 | PF06028 DUF915 This family consists of several bacterial proteins of unknown function. Members of this family have an alpha/beta hydrolase fold. | PF05057 DUF676 (cdd|26334) | Psi: 10 hits Clans: AB_hydrolase | ||
45.90 | PF06821 DUF1234 The Crystal Structure Of The Yden Gene Product Swiss:P96671 from B. Subtilis has been solved. The structure shows an alpha-beta hydrolase fold suggesting an enzymatic function for these proteins [1]. | PF05990 DUF900 (cdd|24863) | Clans: AB_hydrolase | ||
45.61 | PF06801 DUF1532 - | PF02977 CarbpepA_inh (cdd|3471) | Psi: 2 hits | ||
44.94 | PF08216 DUF1716 This domain is found in eukaryotic proteins. A human nuclear protein with this domain (Swiss:Q8WYA6) is thought to have a role in apoptosis [1]. | PF00514 Arm (cdd|16750) | |||
43.92 | PF07037 DUF1323 This family consists of several hypothetical Enterobacterial proteins of around 120 residues in length. The function of this family is unknown. | PF01381 HTH_3 (cdd|23192) | |||
42.84 | PF01883 DUF59 This family includes prokaryotic proteins of unknown function. The family also includes PhaH Swiss:O84984 from Pseudomonas putida. PhaH forms a complex with PhaF Swiss:O84982, PhaG Swiss:O84983 and PhaI Swiss:O84985, which hydroxylates phenylacetic acid to 2-hydroxyphenylacetic acid [1]. So members of this family may all be components of ring hydroxylating complexes. | PF01106 NifU (cdd|7905) | |||
41.41 | PF01796 DUF35 This domain has no known function and is found in conserved hypothetical archaeal and bacterial proteins. The domain is approximately 120 amino acids long. The domain is duplicated in Swiss:O53566. | PF01907 Ribosomal_L37e (cdd|8177) | |||
39.56 | PF04601 DUF569 Family of hypothetical proteins. Some family members contain a two copies of the region. | PF02815 MIR (cdd|24654) | Psi: 20 hits Clans: Trefoil | ||
38.67 | PF01947 DUF98 This prokaryotic family has no known function. | PF04482 DUF564 (cdd|15779) | Psi: 12 hits | ||
38.24 | PF04480 DUF559 - | PF01376 Enterotoxin_b (cdd|23189) | |||
37.18 | PF01995 DUF128 This archaebacterial protein family has no known function. The domain is found duplicated in Swiss:O27611. | PF01475 FUR (cdd|23216) | |||
37.04 | PF05883 DUF855 This family consists of several Baculovirus proteins of around 130 residues in length. The function of this family is unknown. | PF00097 zf-C3HC4 (cdd|24362) | Psi: 14 hits | ||
35.86 | PF07045 DUF1330 This family consists of several hypothetical bacterial proteins of around 90 residues in length. The function of this family is unknown. | PF03795 YCII (cdd|8741) | |||
35.53 | PF06133 DUF964 This family consists of several relatively short bacterial and archaeal hypothetical sequences. The function of this family is unknown. | PF07050 DUF1333 (cdd|27157) | |||
33.70 | PF04273 DUF442 Family of uncharacterised proteins. | PF03162 Y_phosphatase2 (cdd|8540) | |||
32.32 | PF03193 DUF258 - | PF03205 MobB (cdd|23435) | |||
30.87 | PF04482 DUF564 Protein of unknown function found in algal chloroplasts and in a cyanobacterium. | PF01947 DUF98 (cdd|2473) | |||
30.72 | PF07006 DUF1310 This family consists of several hypothetical proteins of around 125 residues in length. Members of this family seem to be specific to Listeria and Streptococcus species. The function of this family is unknown. | PF07252 DUF1433 (cdd|27359) | |||
30.19 | PF05872 DUF853 This family consists of several bacterial proteins of unknown function. Swiss:Q8YFZ2 is thought to be an ATPase. | PF00004 AAA (cdd|25355) | Clans: AAA | ||
30.00 | PF07755 DUF1611 This region is found in a number of hypothetical bacterial and archaeal proteins. The region is approximately 350 residues long. A member of this family (Swiss:Q6M063) is thought to associate with another subunit to form an H+-transporting ATPase, but no evidence has been found to support this. | PF00448 SRP54 (cdd|25515) | |||
29.52 | PF04343 DUF488 This family includes several proteins of uncharacterised function. | PF06571 DUF1130 (cdd|26683) | |||
29.32 | PF02578 DUF152 - | PF00289 CPSase_L_chain (cdd|854) | |||
28.72 | PF05591 DUF770 This family consists of several proteins of unknown function from various bacterial species. | PF00088 Trefoil (cdd|7445) | |||
28.22 | PF03444 DUF293 This domain is always found with a pair of CBS domains Pfam:PF00571. this region may be distantly related to the HrcA proteins of prokaryotes (Bateman A pers. obs.). | PF01726 LexA_DNA_bind (cdd|2256) | Psi: 6 hits Clans: HTH | ||
27.66 | PF05990 DUF900 This family consists of several hypothetical proteins of unknown function mostly found in Rhizobium species. Members of this family have an alpha/beta hydrolase fold. | PF05057 DUF676 (cdd|26334) | Psi: 2 hits Clans: AB_hydrolase | ||
25.92 | PF03703 DUF304 Domain found in uncharacterised family of membrane proteins. 1-3 copies found in each protein, with each copy flanked by transmembrane helices. | PF06713 DUF1200 (cdd|26822) | |||
25.75 | PF01060 DUF290 This family called family 2 in [1], has weak similarity to transthyretin (formerly called prealbumin) which transports thyroid hormones. The specific function of this protein is unknown. | PF07210 DUF1416 (cdd|27317) | |||
25.63 | PF05331 DUF742 This family consists of several uncharacterised Streptomyces proteins as well as one from Mycobacterium tuberculosis. The function of these proteins is unknown. | PF01022 HTH_5 (cdd|15275) | Clans: HTH | ||
25.44 | PF02578 DUF152 - | PF03975 CheD (cdd|8902) | |||
24.27 | PF01709 DUF28 This domain is found in bacterial and yeast proteins it compromises the entire length or central region of most of the proteins in the family, all of which are hypothetical with no known function. The average length of this domain is approximately 230 amino acids long. | PF00382 TFIIB (cdd|945) | |||
23.49 | PF03618 DUF299 Family of bacterial proteins with no known function. | PF01582 TIR (cdd|23237) | |||
21.97 | PF02001 DUF134 This family of archaeal proteins has no known function. | PF05225 HTH_psq (cdd|24764) | Clans: HTH | ||
21.66 | PF01939 DUF91 The function of this prokaryotic protein is unknown. | PF04313 HSDR_N (cdd|17471) | |||
20.63 | PF02576 DUF150 - | PF01423 LSM (cdd|25754) | |||
19.50 | PF07211 DUF1417 This family consists of several hypothetical bacterial and phage proteins of around 180 residues in length. The function of this family is unknown. | PF07352 Phage_Mu_Gam (cdd|27459) | |||
19.04 | PF01809 DUF37 This domain is found in short (70 amino acid) hypothetical proteins from various bacteria. The domain contains three conserved cysteine residues. Swiss:Q44066 from Aeromonas hydrophila has been found to have hemolytic activity (unpublished). | PF02467 Whib (cdd|8311) | |||
18.86 | PF04301 DUF452 - | PF00561 Abhydrolase_1 (cdd|23022) | Psi: 113 hits | ||
18.85 | PF03444 DUF293 This domain is always found with a pair of CBS domains Pfam:PF00571. this region may be distantly related to the HrcA proteins of prokaryotes (Bateman A pers. obs.). | PF00196 GerE (cdd|25436) | Clans: HTH | ||
18.84 | PF03141 DUF248 Members of this family of hypothetical plant proteins are probably methyltransferases: several of the aligned sequences either match the methyltransferase profile Profile:PS50124, or contain a SAM-binding motif Profile:PS50193. Swiss:Q9ZQ84 contains both. Several family members are described as ankyrin like. | PF07021 MetW (cdd|27128) | Clans: Methyltransfer | ||
18.70 | PF05976 DUF893 This family consists of several putative bacterial membrane proteins of unknown function. | PF07185 DUF1404 (cdd|27292) | |||
18.66 | PF04266 DUF437 Archaeal protein of unknown function. | PF06171 DUF984 (cdd|25044) | Psi: 4 hits Clans: PUA | ||
18.28 | PF01060 DUF290 This family called family 2 in [1], has weak similarity to transthyretin (formerly called prealbumin) which transports thyroid hormones. The specific function of this protein is unknown. | PF00576 Transthyretin (cdd|23029) | |||
18.17 | PF05891 DUF858 This family consists of several eukaryotic proteins of unknown function. | PF05401 NodS (cdd|23627) | Clans: Methyltransfer | ||
17.15 | PF05891 DUF858 This family consists of several eukaryotic proteins of unknown function. | PF01564 Spermine_synth (cdd|15373) | Psi: 2 hits Clans: Methyltransfer | ||
17.07 | PF03618 DUF299 Family of bacterial proteins with no known function. | PF02224 Cytidylate_kin (cdd|2739) | |||
16.77 | PF05537 DUF759 This family consists of several uncharacterised proteins from the Lyme disease spirochete Borrelia burgdorferi. | PF07268 EppA_BapA (cdd|27375) | |||
15.85 | PF03928 DUF336 This family contains uncharacterised sequences, including several GlcG proteins. The alignment contains many conserved motifs that are suggestive of cofactor binding and enzymatic activity. | PF00785 PAC (cdd|16824) | |||
14.71 | PF04079 DUF387 This family of conserved bacterial proteins are thought to possibly be helix-turn-helix type transcriptional regulators. | PF02082 Rrf2 (cdd|4677) | |||
13.95 | PF05050 DUF672 This family includes several proteins of unknown function and seems to be specific to C. Elegans. | PF01482 DUF13 (cdd|16970) | Psi: 40 hits | ||
13.94 | PF03193 DUF258 - | PF03029 ATP_bind_1 (cdd|23407) | Clans: G-protein | ||
13.55 | PF03444 DUF293 This domain is always found with a pair of CBS domains Pfam:PF00571. this region may be distantly related to the HrcA proteins of prokaryotes (Bateman A pers. obs.). | PF01325 Fe_dep_repress (cdd|1869) | Psi: 2 hits Clans: HTH | ||
13.44 | PF01638 DUF24 Members of this family are predicted to be transcriptional regulators that are related to the Pfam:PF01047 family. | PF02295 z-alpha (cdd|2806) | Clans: HTH | ||
13.29 | PF06155 DUF971 This family consists of several short bacterial proteins and one sequence (Swiss:Q8RZ62) from Oryza sativa. The function of this family is unknown. | PF07076 DUF1344 (cdd|27183) | |||
13.23 | PF07210 DUF1416 This family consists of several hypothetical bacterial proteins of around 100 residues in length. Members of this family appear to be Actinomycete specific. The function of this family is unknown. | PF01060 DUF290 (cdd|24508) | |||
13.01 | PF03926 DUF335 This family of uncharacterised proteins may be zinc metallopeptidases. | PF06114 DUF955 (cdd|26477) |