Tan0017274 (gene) Snake gourd v1

Overview
NameTan0017274
Typegene
OrganismTrichosanthes anguina (Snake gourd v1)
DescriptionDetected protein of confused Function
LocationLG05: 8715871 .. 8718205 (+)
RNA-Seq ExpressionTan0017274
SyntenyTan0017274
Sequences
The following sequences are available for this feature:

Gene sequence (with intron)

Legend: exonCDSpolypeptidethree_prime_UTR
Hold the cursor over a type above to highlight its positions in the sequence below.
ATGTTTTGGAAACTAAAATCGTTGGTTGATAAGTTCATGGAGGAAGTGAAGGAGGCGGTGGAAACGGACGTTGAAGATAGAATGAAGAAGGAGAAAGAGATGCAGAGCAACATCAAGGAACGAGAACGCGATGTAACAGAGCGGGAAGCTGCATGGAAGGAGGAGCTTTCACGACGAGAGGTACTGTTTACTGTAAAAATGGCGAACTCTTCTTTCTCTTCTTCATCTTCCCTCCCGCCTGCATTTCCTCTCCTTTCAAAATGTTGCCGCATCCGTGGGGTGTGGATCATTTATAGTTTATGAACTTTCCCAGATTTTTCTTTTTTAAAAATTCACCATCACCAAGCTATTTTTTTTTTTTTTTTTTAATAAGTCTTACACATTTTTTCTATTTTAAAAATTAATGGATCTTTTACTCCATCAAGATCAACCCTGGAGGATTCAAATCATGACCTTTCATCATGCTATACCTCTTGATTTATTAAATATAAAGTTAAATGTTATGTTTAATGAGTTTTTAAATTTTAAATTTTGTGTTGGAGAATTATTTAAAATGTCATAAAATTTAAAACTTAAGATTCTATTGGAAACAAAATAAAAAATTTAAACCTTTTTTATAACTATTTGGTTTTTTATTTTTTTTGTTTTTGAAAATTAAGCCTATAGATACTTTTTCATGTTTTCTTATCTAGTTTTTAAATGTGTTTTAAAAAACCAAACCAAGTTTTAAAAATTTAAAAAAAAAAAAAAGTAGTTTCTAAAAACTTGTTTATGCTTTTGAAATTTAGCTAAAAATTCAAGTATTTTCTTAAAAAATATGGAAATTATTGTAGGGTTGGGTGAAAACCTGTAGAGAAATTATGAGAAAACAAATACAATTTCCAAAAACAAAAAACCAAGACTCTATTTGATAACCATTTGGTTTTTGGTTTTTGGTTTTGAAGATTGTACTTGTTATCTCATCATTTCTCTACAATGGTTTTTATCCTCCTTACAACGGTCCCGCTTTTCTTAAGAAAACACTTGAATTCTTAGCTAAATTTCAAAAGCAAAAACAAGTTTTTGAAAACTATTTTTTTTAGTTTTTACAAGTTGACTTGATTTTTGAAAACACATTTAAAAAGTAGATAAGAAAACATGACAAGTCATGGGTGAAAGTAGTATTTATACGCTTAATTTTTAAAAACCAAATGGTTATCAACGGGTCACAAAATTAACCACTTTTTAAAATTTAGAATCTTTTTGACATAAAATTGAAAGTTCATAAACTTGTTAGATATTTTTTAAGGTTACAAGACTAAATAGACACAAAAAAAAATACAGAACTAAACTTGTAATTTAACATATATTATGCATTATCGAGTAAAGTTATGTTCGTGAGCTATGAACTTTTACTATTGTCAATGGAATTCCTTTTTTAATTAATCAATACAATTGTCAATAGATTCTAACATAATTTTTTTTTTTCTTAAGTTCAGCAATTGCAAGTTAGAGTTAGAGAAATGATTTTAAGTCACTTGTTAGAGTCAAGGCACCTATTACCAAAGTTCAGTCCTACTCTAATTAATCCATTTAAGCCACTTGTAATTTGTATCAAATCTAGTATTGAGTTTAGACATGAAGAGCCTCAAATCTTAATCAAAATTTAGTGCTATCAAGGGCTAAAATAAAATATTTCAAAATATAAAGGAAAAAAATGGTGGAATAATACATAACCCTAACTTCAAAATTAGTTGATATTGCTCATTTTTAAATTTATCAATAGAACATTTTAAAAAGAAGTAAAAGAAACTTGATGATACATAAATTATTTAGAAACATTTCATGATGTATTTGTTTGTATTTTATTCAGGCAGAGATTGCACGACAAGAATTAAAGCTGAGAATGGAAAGGGAGGATTTTGAAAAAGAAAAAAGTGTGCTTATAGGAGCTGCATCCATCCAAGATAACCACGATGGAGCTCTTGAAATCACTGTTAATGGTGAGAAATACCGATGCCTCAGATTTTCCAAAGCTAAGAGATGACTCCTTAACGATCTAACGGGACTTACTTTCCACTTCTTCGGGTAAAATATACTTTTAGTCCCTCAAATTTAAACTTAATTTCTATTTGGTCCCTAAGATCTTAAAGTTAACACTCTTAATCCTTGAGGTTTTAATTTAATTTCCATCTGGTCTAAAGTTTCAATTCGTACATGATTCGCTCCCAAAATTTAAATTTGATTTTTAATTAATCTCTAGAGTTTGAAATTAGTTCCTAATTGGCCTTTTACACTCACCTCATCATTTCCTATCGTTTAGAAACTAATTTCAAACTTAGACTAATTAAAAATC

mRNA sequence

ATGTTTTGGAAACTAAAATCGTTGGTTGATAAGTTCATGGAGGAAGTGAAGGAGGCGGTGGAAACGGACGTTGAAGATAGAATGAAGAAGGAGAAAGAGATGCAGAGCAACATCAAGGAACGAGAACGCGATGTAACAGAGCGGGAAGCTGCATGGAAGGAGGAGCTTTCACGACGAGAGGCAGAGATTGCACGACAAGAATTAAAGCTGAGAATGGAAAGGGAGGATTTTGAAAAAGAAAAAAGTGTGCTTATAGGAGCTGCATCCATCCAAGATAACCACGATGGAGCTCTTGAAATCACTGTTAATGGTGAGAAATACCGATGCCTCAGATTTTCCAAAGCTAAGAGATGACTCCTTAACGATCTAACGGGACTTACTTTCCACTTCTTCGGGTAAAATATACTTTTAGTCCCTCAAATTTAAACTTAATTTCTATTTGGTCCCTAAGATCTTAAAGTTAACACTCTTAATCCTTGAGGTTTTAATTTAATTTCCATCTGGTCTAAAGTTTCAATTCGTACATGATTCGCTCCCAAAATTTAAATTTGATTTTTAATTAATCTCTAGAGTTTGAAATTAGTTCCTAATTGGCCTTTTACACTCACCTCATCATTTCCTATCGTTTAGAAACTAATTTCAAACTTAGACTAATTAAAAATC

Coding sequence (CDS)

ATGTTTTGGAAACTAAAATCGTTGGTTGATAAGTTCATGGAGGAAGTGAAGGAGGCGGTGGAAACGGACGTTGAAGATAGAATGAAGAAGGAGAAAGAGATGCAGAGCAACATCAAGGAACGAGAACGCGATGTAACAGAGCGGGAAGCTGCATGGAAGGAGGAGCTTTCACGACGAGAGGCAGAGATTGCACGACAAGAATTAAAGCTGAGAATGGAAAGGGAGGATTTTGAAAAAGAAAAAAGTGTGCTTATAGGAGCTGCATCCATCCAAGATAACCACGATGGAGCTCTTGAAATCACTGTTAATGGTGAGAAATACCGATGCCTCAGATTTTCCAAAGCTAAGAGATGA

Protein sequence

MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRREAEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR
Homology
BLAST of Tan0017274 vs. NCBI nr
Match: XP_021713884.1 (uncharacterized protein LOC110681991 [Chenopodium quinoa] >XP_021753276.1 uncharacterized protein LOC110718697 [Chenopodium quinoa] >XP_021846845.1 uncharacterized protein LOC110786603 [Spinacia oleracea] >KNA18259.1 hypothetical protein SOVF_072570 [Spinacia oleracea])

HSP 1 Score: 161.0 bits (406), Expect = 6.2e-36
Identity = 86/117 (73.50%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++KS+VDKF++E+KEA+E D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKSVVDKFVQELKEALEADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. NCBI nr
Match: XP_019167913.1 (PREDICTED: uncharacterized protein LOC109163631 [Ipomoea nil] >XP_031118413.1 uncharacterized protein LOC116022010 [Ipomoea triloba])

HSP 1 Score: 160.6 bits (405), Expect = 8.1e-36
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKF+EE+KEA++ D+ DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFVEELKEALDADIRDRLMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE++L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEVRLKMERENLEKEKSVLMGTASSQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. NCBI nr
Match: XP_022928423.1 (uncharacterized protein LOC111435239 [Cucurbita moschata] >XP_022989491.1 uncharacterized protein LOC111486533 [Cucurbita maxima] >XP_023529819.1 uncharacterized protein LOC111792534 [Cucurbita pepo subsp. pepo] >KAG7022778.1 hypothetical protein SDJN02_16514, partial [Cucurbita argyrosperma subsp. argyrosperma])

HSP 1 Score: 160.2 bits (404), Expect = 1.1e-35
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKFMEE+KEA++ D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFMEELKEALDADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+ME+E+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMEKENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. NCBI nr
Match: KAF7808382.1 (beta-mannosyltransferase-like protein [Senna tora])

HSP 1 Score: 160.2 bits (404), Expect = 1.1e-35
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKF+EE+KEA++ D++DR+ KE+EMQS IKERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFVEELKEALDADIQDRIMKEREMQSYIKEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRF+KAK+
Sbjct: 61  AEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFAKAKK 117

BLAST of Tan0017274 vs. NCBI nr
Match: XP_010530976.1 (PREDICTED: uncharacterized protein LOC104807412 [Tarenaya hassleriana] >XP_022020807.1 uncharacterized protein LOC110920893 [Helianthus annuus] >KAF5818791.1 hypothetical protein HanXRQr2_Chr02g0070151 [Helianthus annuus])

HSP 1 Score: 159.8 bits (403), Expect = 1.4e-35
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKF+EE+KEA++ D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFVEELKEALDADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. ExPASy TrEMBL
Match: A0A0K9RH16 (Uncharacterized protein OS=Spinacia oleracea OX=3562 GN=SOVF_072570 PE=4 SV=1)

HSP 1 Score: 161.0 bits (406), Expect = 3.0e-36
Identity = 86/117 (73.50%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++KS+VDKF++E+KEA+E D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKSVVDKFVQELKEALEADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. ExPASy TrEMBL
Match: A0A803LGU2 (Uncharacterized protein OS=Chenopodium quinoa OX=63459 PE=4 SV=1)

HSP 1 Score: 161.0 bits (406), Expect = 3.0e-36
Identity = 86/117 (73.50%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++KS+VDKF++E+KEA+E D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKSVVDKFVQELKEALEADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. ExPASy TrEMBL
Match: A0A6J1JK80 (uncharacterized protein LOC111486533 OS=Cucurbita maxima OX=3661 GN=LOC111486533 PE=4 SV=1)

HSP 1 Score: 160.2 bits (404), Expect = 5.1e-36
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKFMEE+KEA++ D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFMEELKEALDADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+ME+E+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMEKENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. ExPASy TrEMBL
Match: A0A6J1ENZ6 (uncharacterized protein LOC111435239 OS=Cucurbita moschata OX=3662 GN=LOC111435239 PE=4 SV=1)

HSP 1 Score: 160.2 bits (404), Expect = 5.1e-36
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKFMEE+KEA++ D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFMEELKEALDADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+ME+E+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMEKENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. ExPASy TrEMBL
Match: A0A251VHC3 (Uncharacterized protein OS=Helianthus annuus OX=4232 GN=HannXRQ_Chr02g0047201 PE=4 SV=1)

HSP 1 Score: 159.8 bits (403), Expect = 6.7e-36
Identity = 85/117 (72.65%), Postives = 105/117 (89.74%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K++VDKF+EE+KEA++ D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKAVVDKFVEELKEALDADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
           AEIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  AEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

BLAST of Tan0017274 vs. TAIR 10
Match: AT2G17350.1 (unknown protein; Has 119 Blast hits to 93 proteins in 40 species: Archae - 0; Bacteria - 3; Metazoa - 18; Fungi - 12; Plants - 44; Viruses - 0; Other Eukaryotes - 42 (source: NCBI BLink). )

HSP 1 Score: 156.0 bits (393), Expect = 1.9e-38
Identity = 83/117 (70.94%), Postives = 103/117 (88.03%), Query Frame = 0

Query: 1   MFWKLKSLVDKFMEEVKEAVETDVEDRMKKEKEMQSNIKERERDVTEREAAWKEELSRRE 60
           M  ++K +VDKF+EE+K+A++ D++DR+ KE+EMQS I+ERER+V EREAAWK ELSRRE
Sbjct: 1   MSLRIKLVVDKFVEELKQALDADIQDRIMKEREMQSYIEEREREVAEREAAWKAELSRRE 60

Query: 61  AEIARQELKLRMEREDFEKEKSVLIGAASIQDNHDGALEITVNGEKYRCLRFSKAKR 118
            EIARQE +L+MERE+ EKEKSVL+G AS QDN DGALEITV+GEKYRCLRFSKAK+
Sbjct: 61  TEIARQEARLKMERENLEKEKSVLMGTASNQDNQDGALEITVSGEKYRCLRFSKAKK 117

The following BLAST results are available for this feature:
Match NameE-valueIdentityDescription
Match NameE-valueIdentityDescription
XP_021713884.16.2e-3673.50uncharacterized protein LOC110681991 [Chenopodium quinoa] >XP_021753276.1 unchar... [more]
XP_019167913.18.1e-3672.65PREDICTED: uncharacterized protein LOC109163631 [Ipomoea nil] >XP_031118413.1 un... [more]
XP_022928423.11.1e-3572.65uncharacterized protein LOC111435239 [Cucurbita moschata] >XP_022989491.1 unchar... [more]
KAF7808382.11.1e-3572.65beta-mannosyltransferase-like protein [Senna tora][more]
XP_010530976.11.4e-3572.65PREDICTED: uncharacterized protein LOC104807412 [Tarenaya hassleriana] >XP_02202... [more]
Match NameE-valueIdentityDescription
A0A0K9RH163.0e-3673.50Uncharacterized protein OS=Spinacia oleracea OX=3562 GN=SOVF_072570 PE=4 SV=1[more]
A0A803LGU23.0e-3673.50Uncharacterized protein OS=Chenopodium quinoa OX=63459 PE=4 SV=1[more]
A0A6J1JK805.1e-3672.65uncharacterized protein LOC111486533 OS=Cucurbita maxima OX=3661 GN=LOC111486533... [more]
A0A6J1ENZ65.1e-3672.65uncharacterized protein LOC111435239 OS=Cucurbita moschata OX=3662 GN=LOC1114352... [more]
A0A251VHC36.7e-3672.65Uncharacterized protein OS=Helianthus annuus OX=4232 GN=HannXRQ_Chr02g0047201 PE... [more]
Match NameE-valueIdentityDescription
AT2G17350.11.9e-3870.94unknown protein; Has 119 Blast hits to 93 proteins in 40 species: Archae - 0; Ba... [more]
InterPro
Analysis Name: InterPro Annotations of Snake gourd (anguina) v1
Date Performed: 2021-10-25
IPR TermIPR DescriptionSourceSource TermSource DescriptionAlignment
NoneNo IPR availablePANTHERPTHR35715OS08G0511800 PROTEINcoord: 3..117
NoneNo IPR availablePANTHERPTHR35715:SF6SUBFAMILY NOT NAMEDcoord: 3..117

Relationships

The following mRNA feature(s) are a part of this gene:

Feature NameUnique NameType
Tan0017274.1Tan0017274.1mRNA


GO Annotation
GO Assignments
This gene is annotated with the following GO terms.
Category Term Accession Term Name
molecular_function GO:0016757 glycosyltransferase activity