Citrus Sinensis ID: 042873
Local Sequence Feature Prediction
| Prediction and (Method) | Result |
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Close Homologs for Annotation Transfer
Close Homologs in the Non-Redundant Database Detected by BLAST 
Original result of BLAST against Nonredundant Database
GI ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
Q cover ![]() |
H cover ![]() |
Identity ![]() |
E-value ![]() |
| Query | 180 | ||||||
| 356532573 | 167 | PREDICTED: uncharacterized protein LOC10 | 0.922 | 0.994 | 0.563 | 3e-50 | |
| 225432312 | 168 | PREDICTED: uncharacterized protein LOC10 | 0.894 | 0.958 | 0.529 | 1e-45 | |
| 224107327 | 180 | predicted protein [Populus trichocarpa] | 1.0 | 1.0 | 0.5 | 3e-44 | |
| 225437310 | 185 | PREDICTED: uncharacterized protein LOC10 | 0.994 | 0.967 | 0.483 | 4e-44 | |
| 449433405 | 172 | PREDICTED: translocator protein homolog | 0.938 | 0.982 | 0.517 | 2e-43 | |
| 224064430 | 197 | predicted protein [Populus trichocarpa] | 0.944 | 0.862 | 0.485 | 3e-43 | |
| 224131166 | 199 | predicted protein [Populus trichocarpa] | 0.944 | 0.854 | 0.482 | 4e-42 | |
| 255582174 | 190 | peripheral-type benzodiazepine receptor, | 0.988 | 0.936 | 0.463 | 1e-41 | |
| 383932366 | 189 | putative peripheral-type benzodiazepine | 0.938 | 0.894 | 0.497 | 5e-39 | |
| 50978430 | 192 | peripheral-type benzodiazepine receptor | 0.938 | 0.880 | 0.476 | 1e-38 |
| >gi|356532573|ref|XP_003534846.1| PREDICTED: uncharacterized protein LOC100790873 [Glycine max] | Back alignment and taxonomy information |
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Score = 202 bits (515), Expect = 3e-50, Method: Compositional matrix adjust.
Identities = 102/181 (56%), Positives = 127/181 (70%), Gaps = 15/181 (8%)
Query: 1 MASQALHPLYKNNSPTTSHKPETKMISAKRAFRSLAFSISVPLSVTLAIICIFGSGKNY- 59
MASQ LH +TK A+RA RSLA I+VP ++TL II +FGSG+ Y
Sbjct: 1 MASQTLH--------------DTKKSQARRALRSLAIGIAVPFTLTLTIIILFGSGRKYN 46
Query: 60 RALPKPFWFPPLWFIHLATLSSSFFMSLAAWLVWADGGFHARSDSLLLYVAQVSLSVLWD 119
+ + KPFWF PLWFIHL+ L SSFFM LAAWLVWADGGF +D++ LY+A VSLS++W
Sbjct: 47 QIISKPFWFAPLWFIHLSILGSSFFMGLAAWLVWADGGFQGETDAMSLYIAHVSLSIVWH 106
Query: 120 PLVLVTGAACLGLVFCVAHFGTLVACYKSFEKVNPFAKDLVKPCLAWMGFLTMVNYKLIY 179
PLVLV GA L L+ C+ +F TL CY F KVNPFAKDL KPCLAW +L +V++KLI+
Sbjct: 107 PLVLVMGAYWLALISCLVNFVTLFLCYLRFRKVNPFAKDLAKPCLAWAAYLCLVSFKLIF 166
Query: 180 L 180
+
Sbjct: 167 I 167
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Source: Glycine max Species: Glycine max Genus: Glycine Family: Fabaceae Order: Fabales Class: Phylum: Streptophyta Superkingdom: Eukaryota |
| >gi|225432312|ref|XP_002276187.1| PREDICTED: uncharacterized protein LOC100259718 [Vitis vinifera] | Back alignment and taxonomy information |
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| >gi|224107327|ref|XP_002314447.1| predicted protein [Populus trichocarpa] gi|222863487|gb|EEF00618.1| predicted protein [Populus trichocarpa] | Back alignment and taxonomy information |
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| >gi|225437310|ref|XP_002263702.1| PREDICTED: uncharacterized protein LOC100267613 [Vitis vinifera] | Back alignment and taxonomy information |
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| >gi|449433405|ref|XP_004134488.1| PREDICTED: translocator protein homolog [Cucumis sativus] gi|449529256|ref|XP_004171617.1| PREDICTED: translocator protein homolog [Cucumis sativus] | Back alignment and taxonomy information |
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| >gi|224064430|ref|XP_002301472.1| predicted protein [Populus trichocarpa] gi|224100985|ref|XP_002334319.1| predicted protein [Populus trichocarpa] gi|222843198|gb|EEE80745.1| predicted protein [Populus trichocarpa] gi|222870389|gb|EEF07520.1| predicted protein [Populus trichocarpa] | Back alignment and taxonomy information |
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| >gi|224131166|ref|XP_002321017.1| predicted protein [Populus trichocarpa] gi|222861790|gb|EEE99332.1| predicted protein [Populus trichocarpa] | Back alignment and taxonomy information |
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| >gi|255582174|ref|XP_002531881.1| peripheral-type benzodiazepine receptor, putative [Ricinus communis] gi|223528489|gb|EEF30518.1| peripheral-type benzodiazepine receptor, putative [Ricinus communis] | Back alignment and taxonomy information |
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| >gi|383932366|gb|AFH57280.1| putative peripheral-type benzodiazepine receptor [Gossypium hirsutum] | Back alignment and taxonomy information |
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| >gi|50978430|emb|CAH10765.1| peripheral-type benzodiazepine receptor [Solanum tuberosum] | Back alignment and taxonomy information |
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Prediction of Gene Ontology (GO) Terms
Close Homologs with Gene Ontology terms Detected by BLAST 
Original result of BLAST against Gene Ontology (AMIGO)
ID ![]() |
Alignment graph ![]() |
Length ![]() |
Definition ![]() |
Q cover ![]() |
H cover ![]() |
Identity ![]() |
E-value ![]() |
| Query | 180 | ||||||
| TAIR|locus:2043358 | 196 | TSPO "TSPO(outer membrane tryp | 0.977 | 0.897 | 0.361 | 2.4e-28 | |
| FB|FBgn0031263 | 185 | CG2789 [Drosophila melanogaste | 0.516 | 0.502 | 0.343 | 3.3e-08 | |
| UNIPROTKB|P30536 | 169 | TSPO "Translocator protein" [H | 0.522 | 0.556 | 0.352 | 8.7e-08 | |
| RGD|2228 | 169 | Tspo "translocator protein" [R | 0.522 | 0.556 | 0.343 | 8.7e-08 | |
| UNIPROTKB|P30535 | 169 | TSPO "Translocator protein" [B | 0.544 | 0.579 | 0.323 | 1.1e-07 | |
| UNIPROTKB|Q6UN27 | 169 | TSPO "Translocator protein" [S | 0.522 | 0.556 | 0.343 | 5e-07 | |
| UNIPROTKB|F1SJR8 | 169 | TSPO "Translocator protein" [S | 0.522 | 0.556 | 0.343 | 8e-07 | |
| UNIPROTKB|F1NZA2 | 167 | TSPO "Uncharacterized protein" | 0.544 | 0.586 | 0.313 | 1e-06 | |
| MGI|MGI:88222 | 169 | Tspo "translocator protein" [M | 0.511 | 0.544 | 0.326 | 2.2e-06 | |
| UNIPROTKB|E2RQH5 | 169 | TSPO "Uncharacterized protein" | 0.533 | 0.568 | 0.33 | 8.1e-06 |
| TAIR|locus:2043358 TSPO "TSPO(outer membrane tryptophan-rich sensory protein)-related" [Arabidopsis thaliana (taxid:3702)] | Back alignment and assigned GO terms |
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Score = 316 (116.3 bits), Expect = 2.4e-28, P = 2.4e-28
Identities = 64/177 (36%), Positives = 93/177 (52%)
Query: 2 ASQALHPLYKNNSPTTSHKPETKMISAKRAFRSLAFSISVPLSVTLAIICIFGSGKNY-R 60
A+ A+ + ++ K + K AKR +SL +++ P+ VTL G+ Y
Sbjct: 17 ATTAMAETERKSADDNKGKRDQKRAMAKRGLKSLTVAVAAPVLVTLFATYFLGTSDGYGN 76
Query: 61 AXXXXXXXXXXXXIHLATLSSSFFMSLAAWLVWADGGFHARSDSLLLYVAQVSLSVLWDP 120
+H L+SS M LAAWLVW DGGFH + ++L LY+AQ L ++WDP
Sbjct: 77 RAKSSSWIPPLWLLHTTCLASSGLMGLAAWLVWVDGGFHKKPNALYLYLAQFLLCLVWDP 136
Query: 121 LVLVTGAACLGLVFCVAHFGTLVACYKSFEKVNPFAKDLVKPCLAWMGFLTMVNYKL 177
+ G+ GL + L CYK+F +++P A +LVKPCLAW F+ VN KL
Sbjct: 137 VTFRVGSGVAGLAVWLGQSAALFGCYKAFNEISPVAGNLVKPCLAWAAFVAAVNVKL 193
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| FB|FBgn0031263 CG2789 [Drosophila melanogaster (taxid:7227)] | Back alignment and assigned GO terms |
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| UNIPROTKB|P30536 TSPO "Translocator protein" [Homo sapiens (taxid:9606)] | Back alignment and assigned GO terms |
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| RGD|2228 Tspo "translocator protein" [Rattus norvegicus (taxid:10116)] | Back alignment and assigned GO terms |
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| UNIPROTKB|P30535 TSPO "Translocator protein" [Bos taurus (taxid:9913)] | Back alignment and assigned GO terms |
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| UNIPROTKB|Q6UN27 TSPO "Translocator protein" [Sus scrofa (taxid:9823)] | Back alignment and assigned GO terms |
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| UNIPROTKB|F1SJR8 TSPO "Translocator protein" [Sus scrofa (taxid:9823)] | Back alignment and assigned GO terms |
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| UNIPROTKB|F1NZA2 TSPO "Uncharacterized protein" [Gallus gallus (taxid:9031)] | Back alignment and assigned GO terms |
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| MGI|MGI:88222 Tspo "translocator protein" [Mus musculus (taxid:10090)] | Back alignment and assigned GO terms |
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| UNIPROTKB|E2RQH5 TSPO "Uncharacterized protein" [Canis lupus familiaris (taxid:9615)] | Back alignment and assigned GO terms |
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Prediction of Enzyme Commission (EC) Number
EC Number Prediction by Ezypred Server 
Original result from Ezypred Server
Fail to connect to Ezypred Server
Prediction of Functionally Associated Proteins
Functionally Associated Proteins Detected by STRING 
Original result from the STRING server
Fail to connect to STRING server
Conserved Domains and Related Protein Families
Conserved Domains Detected by RPS-BLAST 
Original result of RPS-BLAST against CDD database part I
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
E-value ![]() |
| Query | 180 | |||
| pfam03073 | 147 | pfam03073, TspO_MBR, TspO/MBR family | 3e-13 | |
| COG3476 | 161 | COG3476, COG3476, Tryptophan-rich sensory protein | 2e-09 |
| >gnl|CDD|217354 pfam03073, TspO_MBR, TspO/MBR family | Back alignment and domain information |
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Score = 63.4 bits (155), Expect = 3e-13
Identities = 41/147 (27%), Positives = 65/147 (44%), Gaps = 2/147 (1%)
Query: 36 AFSISVPLSVTLAIICIFGSGKN-YRALPKPFWFPPLWFIHLATLSSSFFMSLAAWLVWA 94
I++ L+ + Y +L KP W PP W M +AA+LVW
Sbjct: 1 LIFIAICLAAGFLGGLFTPTSSEWYASLRKPSWTPPNWVFGPVWTVLYILMGIAAYLVWR 60
Query: 95 DGGFHARSDSLL-LYVAQVSLSVLWDPLVLVTGAACLGLVFCVAHFGTLVACYKSFEKVN 153
G R L L+ Q++L+ LW PL + L L+ + + ++A +F +V+
Sbjct: 61 AGPGTKRRKLALALFALQLALNALWSPLFFGLHSPGLALIVILLLWLLVLATIVAFWRVS 120
Query: 154 PFAKDLVKPCLAWMGFLTMVNYKLIYL 180
A L+ P L W+ F T +NY + L
Sbjct: 121 RLAALLLVPYLLWVSFATYLNYSIWRL 147
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Tryptophan-rich sensory protein (TspO) is an integral membrane protein that acts as a negative regulator of the expression of specific photosynthesis genes in response to oxygen/light. It is involved in the efflux of porphyrin intermediates from the cell. This reduces the activity of coproporphyrinogen III oxidase, which is thought to lead to the accumulation of a putative repressor molecule that inhibits the expression of specific photosynthesis genes. Several conserved aromatic residues are necessary for TspO function: they are thought to be involved in binding porphyrin intermediates. In, the rat mitochondrial peripheral benzodiazepine receptor (MBR) was shown to not only retain its structure within a bacterial outer membrane, but also to be able to functionally substitute for TspO in TspO- mutants, and to act in a similar manner to TspO in its in situ location: the outer mitochondrial membrane. The biological significance of MBR remains unclear, however. It is thought to be involved in a variety of cellular functions, including cholesterol transport in steroidogenic tissues. Length = 147 |
| >gnl|CDD|226007 COG3476, COG3476, Tryptophan-rich sensory protein (mitochondrial benzodiazepine receptor homolog) [Signal transduction mechanisms] | Back alignment and domain information |
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Conserved Domains Detected by HHsearch 
Original result of HHsearch against CDD database
ID ![]() | Alignment Graph ![]() | Length ![]() |
Definition ![]() |
Probability ![]() |
| Query | 180 | |||
| PF03073 | 148 | TspO_MBR: TspO/MBR family; InterPro: IPR004307 Mem | 100.0 | |
| COG3476 | 161 | Tryptophan-rich sensory protein (mitochondrial ben | 100.0 | |
| PHA02980 | 160 | hypothetical protein; Provisional | 100.0 | |
| KOG3797 | 168 | consensus Peripheral-type benzodiazepine receptor | 100.0 | |
| PF07096 | 124 | DUF1358: Protein of unknown function (DUF1358); In | 90.22 |
| >PF03073 TspO_MBR: TspO/MBR family; InterPro: IPR004307 Members of this group are involved in transmembrane signalling | Back alignment and domain information |
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Probab=100.00 E-value=9.6e-42 Score=266.96 Aligned_cols=144 Identities=31% Similarity=0.540 Sum_probs=136.1
Q ss_pred HHHHHHHHHHHHHHHHhcC--CcccCCCCCCCCCCChhhHHHHHHHHHHHHHHHHHHHHhcCC-CccchhHHHHHHHHHH
Q 042873 37 FSISVPLSVTLAIICIFGS--GKNYRALPKPFWFPPLWFIHLATLSSSFFMSLAAWLVWADGG-FHARSDSLLLYVAQVS 113 (180)
Q Consensus 37 ~~i~~~~~~g~~~~~~~~~--~~wY~~L~kP~w~PP~~vF~~vW~ily~lmg~a~~lv~~~~~-~~~~~~~l~ly~~ql~ 113 (180)
+++++|.++|.++++++++ ++||++|+||+|+||+|+|+++|+++|++||+|+|++|++++ .++++.++.+|++|++
T Consensus 2 i~~~~~~~~~~~~~~~~~~~~~~wy~~L~kP~~~Pp~~~f~~vW~~ly~l~g~a~~~v~~~~~~~~~~~~~l~l~~~~l~ 81 (148)
T PF03073_consen 2 IFIAAPLVVGFLSGYLTPTDVSEWYDSLKKPSWTPPGWVFGPVWTILYILMGIASYLVWRKGGGSPRRRRALALYAIQLA 81 (148)
T ss_pred eeeHHHHHHHHHHHHHcCCcchHHHhhccCCCCCCcccHHHHHHHHHHHHHHHHHHhhHhcccCcchhHHHHHHHHHHHH
Confidence 5678899999999999875 578999999999999999999999999999999999999874 4455788999999999
Q ss_pred hhhhhhHHHHhhhhhHHHHHHHHHHHHHHHHHHHHHhhhChhHHHHHhHHHHHHHHHHHHHHHHHhC
Q 042873 114 LSVLWDPLVLVTGAACLGLVFCVAHFGTLVACYKSFEKVNPFAKDLVKPCLAWMGFLTMVNYKLIYL 180 (180)
Q Consensus 114 lN~~Ws~lFF~~~~~~la~i~i~~l~~~~~~~~~~f~~i~~~Aa~LliPYl~W~~fAt~Ln~~i~~l 180 (180)
+|.+|+++||+.|++++|+++++++++++..++..++|+||.|+++++||++|++|||+||++++||
T Consensus 82 ln~~W~~ifF~~~~~~la~~~~~~l~~~~~~~~~~~~~~~~~a~~l~~Pyl~W~~fAt~Ln~~i~~L 148 (148)
T PF03073_consen 82 LNFAWSPIFFGLRSLGLALIIILALLGLLAALIFAFWKISRTAGLLLIPYLAWLSFATYLNFSIWRL 148 (148)
T ss_pred HHHHHHHHHHHHHcccHHHHHHHHHHHHHHHHHHHHccccHhhHHHHHHHHHHHHHHHHHHHHHHhC
Confidence 9999999999999999999999999999999999999999999999999999999999999999997
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In both prokaryotes and mitochondria they are localized to the outer membrane, and have been shown to bind and transport dicarboxylic tetrapyrrole intermediates of the haem biosynthetic pathway [, ]. They are associated with the major outer membrane porins (in prokaryotes) and with the voltage-dependent anion channel (in mitochondria) []. Rhodobacter sphaeroides TspO (previously CrtK) is involved in signal transduction, functioning as a negative regulator of the expression of some photosynthesis genes (PpsR/AppA repressor/antirepressor regulon). This down-regulation is believed to be in response to oxygen levels. TspO works through (or modulates) the PpsR/AppA system and acts upstream of the site of action of these regulatory proteins []. It has been suggested that the TspO regulatory pathway works by regulating the efflux of certain tetrapyrrole intermediates of the haem/bacteriochlorophyll biosynthetic pathways in response to the availability of molecular oxygen, thereby causing the accumulation of a biosynthetic intermediate that serves as a corepressor for the regulated genes []. A homologue of the TspO protein in Rhizobium meliloti (Sinorhizobium meliloti) is involved in regulating expression of the ndi locus in response to stress conditions []. There is evidence that the S. meliloti TspO acts through, or in addition to, the FixL regulatory system. In animals, the peripheral-type benzodiazepine receptor (PBR, MBR) is a mitochondrial protein (located in the outer mitochondrial membrane) characterised by its ability to bind with nanomolar affinity to a variety of benzodiazepine-like drugs, as well as to dicarboxylic tetrapyrrole intermediates of the haem biosynthetic pathway. Depending upon the tissue, it was shown to be involved in steroidogenesis, haem biosynthesis, apoptosis, cell growth and differentiation, mitochondrial respiratory control, and immune and stress response, but the precise function of the PBR remains unclear. The role of PBR in the regulation of cholesterol transport from the outer to the inner mitochondrial membrane, the rate-determining step in steroid biosynthesis, has been studied in detail. PBR is required for the binding, uptake and release, upon ligand activation, of the substrate cholesterol []. PBR forms a multimeric complex with the voltage-dependent anion channel (VDAC) [] and adenine nucleotide carrier []. Molecular modeling of PBR suggested that it might function as a channel for cholesterol. Indeed, cholesterol uptake and transport by bacterial cells was induced upon PBR expression. Mutagenesis studies identified a cholesterol recognition/interaction motif (CRAC) in the cytoplasmic C terminus of PBR [, ]. In complementation experiments, rat PBR (pk18) functionally substitutes for its homologue TspO in R. sphaeroides, negatively affecting transcription of specific photosynthesis genes []. This suggests that PBR may function as an oxygen sensor, transducing an oxygen-triggered signal leading to an adaptive cellular response. These observations suggest that fundamental aspects of this receptor and the downstream signal transduction pathway are conserved in bacteria and higher eukaryotic mitochondria. The alpha-3 subdivision of the purple bacteria is considered to be a likely source of the endosymbiont that ultimately gave rise to the mitochondrion. Therefore, it is possible that the mammalian PBR remains both evolutionarily and functionally related to the TspO of R. sphaeroides.; GO: 0016021 integral to membrane |
| >COG3476 Tryptophan-rich sensory protein (mitochondrial benzodiazepine receptor homolog) [Signal transduction mechanisms] | Back alignment and domain information |
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| >PHA02980 hypothetical protein; Provisional | Back alignment and domain information |
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| >KOG3797 consensus Peripheral-type benzodiazepine receptor and related proteins [Signal transduction mechanisms] | Back alignment and domain information |
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| >PF07096 DUF1358: Protein of unknown function (DUF1358); InterPro: IPR009792 This family consists of several hypothetical eukaryotic proteins of around 125 residues in length | Back alignment and domain information |
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Homologous Structure Templates
Structure Templates Detected by BLAST 
Original result of BLAST against Protein Data Bank
No homologous structure with e-value below 0.005
Structure Templates Detected by RPS-BLAST 
Original result of RPS-BLAST against PDB70 database
No hit with e-value below 0.005
Structure Templates Detected by HHsearch 
Original result of HHsearch against PDB70 database
No hit with probability above 80.00
Homologous Structure Domains
Structure Domains Detected by RPS-BLAST 
Original result of RPS-BLAST against SCOP70(version1.75) database
No hit with e-value below 0.005
Homologous Domains Detected by HHsearch 
Original result of HHsearch against SCOP70(version1.75) database
No hit with probability above 80.00