ID A0A1Q5HXT4_9ACTN Unreviewed; 455 AA.
AC A0A1Q5HXT4;
DT 12-APR-2017, integrated into UniProtKB/TrEMBL.
DT 12-APR-2017, sequence version 1.
DT 24-JAN-2024, entry version 25.
DE RecName: Full=D-inositol-3-phosphate glycosyltransferase {ECO:0000256|HAMAP-Rule:MF_01695};
DE EC=2.4.1.250 {ECO:0000256|HAMAP-Rule:MF_01695};
DE AltName: Full=N-acetylglucosamine-inositol-phosphate N-acetylglucosaminyltransferase {ECO:0000256|HAMAP-Rule:MF_01695};
DE Short=GlcNAc-Ins-P N-acetylglucosaminyltransferase {ECO:0000256|HAMAP-Rule:MF_01695};
GN Name=mshA {ECO:0000256|HAMAP-Rule:MF_01695};
GN ORFNames=AMK29_33610 {ECO:0000313|EMBL:OKJ49668.1};
OS Streptomyces sp. CB02261.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1703940 {ECO:0000313|EMBL:OKJ49668.1, ECO:0000313|Proteomes:UP000186742};
RN [1] {ECO:0000313|EMBL:OKJ49668.1, ECO:0000313|Proteomes:UP000186742}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CB02261 {ECO:0000313|EMBL:OKJ49668.1,
RC ECO:0000313|Proteomes:UP000186742};
RX PubMed=27999165; DOI=10.1128/mbio.02104-16;
RA Yan X., Ge H., Huang T., Hindra, Yang D., Teng Q., Crnovcic I., Li X.,
RA Rudolf J.D., Lohman J.R., Gansemans Y., Zhu X., Huang Y., Zhao L.X.,
RA Jiang Y., Van Nieuwerburgh F., Rader C., Duan Y., Shen B.;
RT "Strain Prioritization and Genome Mining for Enediyne Natural Products.";
RL MBio 7:e02104-e02116(2016).
CC -!- FUNCTION: Catalyzes the transfer of a N-acetyl-glucosamine moiety to
CC 1D-myo-inositol 3-phosphate to produce 1D-myo-inositol 2-acetamido-2-
CC deoxy-glucopyranoside 3-phosphate in the mycothiol biosynthesis
CC pathway. {ECO:0000256|HAMAP-Rule:MF_01695}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=1D-myo-inositol 3-phosphate + UDP-N-acetyl-alpha-D-glucosamine
CC = 1D-myo-inositol 2-acetamido-2-deoxy-alpha-D-glucopyranoside 3-
CC phosphate + H(+) + UDP; Xref=Rhea:RHEA:26188, ChEBI:CHEBI:15378,
CC ChEBI:CHEBI:57705, ChEBI:CHEBI:58223, ChEBI:CHEBI:58401,
CC ChEBI:CHEBI:58892; EC=2.4.1.250;
CC Evidence={ECO:0000256|ARBA:ARBA00000935, ECO:0000256|HAMAP-
CC Rule:MF_01695};
CC -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_01695}.
CC -!- SIMILARITY: Belongs to the glycosyltransferase group 1 family. MshA
CC subfamily. {ECO:0000256|ARBA:ARBA00008449, ECO:0000256|HAMAP-
CC Rule:MF_01695}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:OKJ49668.1}.
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DR EMBL; LIVX01000015; OKJ49668.1; -; Genomic_DNA.
DR RefSeq; WP_073819987.1; NZ_LIVX01000015.1.
DR AlphaFoldDB; A0A1Q5HXT4; -.
DR OrthoDB; 9810929at2; -.
DR Proteomes; UP000186742; Unassembled WGS sequence.
DR GO; GO:0008375; F:acetylglucosaminyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0102710; F:D-inositol-3-phosphate glycosyltransferase activity; IEA:UniProtKB-EC.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0010125; P:mycothiol biosynthetic process; IEA:UniProtKB-UniRule.
DR CDD; cd03800; GT4_sucrose_synthase; 1.
DR Gene3D; 3.40.50.2000; Glycogen Phosphorylase B; 2.
DR HAMAP; MF_01695; MshA; 1.
DR InterPro; IPR001296; Glyco_trans_1.
DR InterPro; IPR028098; Glyco_trans_4-like_N.
DR InterPro; IPR017814; Mycothiol_biosynthesis_MshA.
DR NCBIfam; TIGR03449; mycothiol_MshA; 1.
DR PANTHER; PTHR45947; SULFOQUINOVOSYL TRANSFERASE SQD2; 1.
DR PANTHER; PTHR45947:SF3; SULFOQUINOVOSYL TRANSFERASE SQD2; 1.
DR Pfam; PF13579; Glyco_trans_4_4; 1.
DR Pfam; PF00534; Glycos_transf_1; 1.
DR SUPFAM; SSF53756; UDP-Glycosyltransferase/glycogen phosphorylase; 1.
PE 3: Inferred from homology;
KW Glycosyltransferase {ECO:0000256|ARBA:ARBA00022676, ECO:0000256|HAMAP-
KW Rule:MF_01695};
KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01695};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01695};
KW Transferase {ECO:0000256|ARBA:ARBA00022679, ECO:0000256|HAMAP-
KW Rule:MF_01695}.
FT DOMAIN 52..227
FT /note="Glycosyltransferase subfamily 4-like N-terminal"
FT /evidence="ECO:0000259|Pfam:PF13579"
FT DOMAIN 241..414
FT /note="Glycosyl transferase family 1"
FT /evidence="ECO:0000259|Pfam:PF00534"
FT REGION 1..28
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT COMPBIAS 13..27
FT /note="Basic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 39
FT /ligand="1D-myo-inositol 3-phosphate"
FT /ligand_id="ChEBI:CHEBI:58401"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 45..46
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 50..55
FT /ligand="1D-myo-inositol 3-phosphate"
FT /ligand_id="ChEBI:CHEBI:58401"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 53
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 108
FT /ligand="1D-myo-inositol 3-phosphate"
FT /ligand_id="ChEBI:CHEBI:58401"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 141
FT /ligand="1D-myo-inositol 3-phosphate"
FT /ligand_id="ChEBI:CHEBI:58401"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 165
FT /ligand="1D-myo-inositol 3-phosphate"
FT /ligand_id="ChEBI:CHEBI:58401"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 185
FT /ligand="1D-myo-inositol 3-phosphate"
FT /ligand_id="ChEBI:CHEBI:58401"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 260
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 265
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 326
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 335
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 336
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 338
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 348
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 356
FT /ligand="UDP-N-acetyl-alpha-D-glucosamine"
FT /ligand_id="ChEBI:CHEBI:57705"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
FT BINDING 362
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01695"
SQ SEQUENCE 455 AA; 48600 MW; E9755E78E3903FA5 CRC64;
MSQYVSRFAG TRHRHPAPSR LRLPGRSRTP RRVAMLSVHT SPLHQPGTGD AGGMNVYIVE
LAKRLAAIDI EVEIFTRATT GGLPPVVELT PGVLVRHVDA GPYEGLAKEE LPAQLCAFTH
GVMQAWAGHR PGHYDLVHSH YWLSGHVGWL AAERWGVPLV HAMHTMAKVK NAALAEGDTP
EPAARVIGET QIVSAADRLI ANTAEEADEL ARFYEADPGK IAVVHPGVNL DHFRPADGRA
AARARLGLPQ DAFIPVFAGR IQPLKAPDIL LRAAAVLLER DPSLRSRMIV PVVGGPSGSG
LAKPEGLQKL AARLGIADIV RFHPPVGQDR LADWFRAASV LVMPSYSESF GLVAIEAQAA
GTPVVAAAVG GLPVAVRDET TGFLVQGHDP ADYARALGRF VADPSLTDRM GAAAALHAGS
FGWDTAASGT ADVYTAAVHD HRLRENRRRV RSHHG
//
