>TIGR02128 G6PI_arch bifunctional phosphoglucose/phosphomannose isomerase; InterPro: IPR011857 Mannose-6-phosphate isomerase or phosphomannose isomerase (5.3.1.8 from EC) (PMI) is the enzyme that catalyzes the interconversion of mannose-6-phosphate and fructose-6-phosphate. In eukaryotes PMI is involved in the synthesis of GDP-mannose, a constituent of N- and O-linked glycans and GPI anchors and in prokaryotes it participates in a variety of pathways, including capsular polysaccharide biosynthesis and D-mannose metabolism. PMI's belong to the cupin superfamily whose functions range from isomerase and epimerase activities involved in the modification of cell wall carbohydrates in bacteria and plants, to non-enzymatic storage proteins in plant seeds, and transcription factors linked to congenital baldness in mammals . Three classes of PMI have been defined . These bifunctional isomerases form a distinct phylogenetic cluster within the larger phosphoglucose isomerase (PGI) superfamily . They show relatively low sequence identity to other PGIs, but contain similar structural elements and show almost complete conservation of the catalytic residues in the active site, indicating they use a similar catalytic mechanism . The family appears to have originated in the archaea, with the bacterial proteins being acquired through horizontal transfer.; GO: 0004347 glucose-6-phosphate isomerase activity, 0004476 mannose-6-phosphate isomerase activity.

Probab=99.25 E-value=1.1e-08 Score=79.55 Aligned_cols=279 Identities=18% Similarity=0.197 Sum_probs=148.5 Q ss_pred CCCCCCEEEEECCCCCCHHHHHHHHHHHH-CCCCCEEEECCHHHCCCCCCCCCCEEEEECCCCCCHHHHHHHHHHHHCCC Q ss_conf 35655103520365430799999999862-56673143042010012334455505775267881899999999863024 Q gi|254780943|r 287 FANISGLLVSSCGTSYLAGLVGKFWFERL-ARLKVEIDVSSEFRYRDFVYSSKWASLFISQSGETADTLASLRYMRTQGL 365 (608) Q Consensus 287 ~~~~~~I~~vGcGTSy~Aal~~~~~~e~~-~~i~v~v~~asEf~y~~~~~~~~tlvI~iSQSGeT~dti~Al~~ak~~g~ 365 (608) T Consensus 24 ~e~~~~iv~~GmGGSGi~G~~~~~~~~~~~~~~Pvfvv~--DY~~-p~~v~~~~~lIAvSYSGNT~ETl~~~e~A~~~~~ 100 (338) T TIGR02128 24 IEAYDEIVISGMGGSGIAGRILSELLLEKSFEVPVFVVK--DYRL-PAFVDGKTLLIAVSYSGNTEETLSAVEEAKKKGA 100 (338) T ss_pred CCCCCCEEEECCCHHHHHHHHHHHHHHHHCCCCCEEEEC--CCCC-CCCCCCCEEEEEEECCCCHHHHHHHHHHHHHCCC T ss_conf 465562278725657899999999865324788888870--7789-6988985179998617866899999999986579 Q ss_pred CEEEEECCCCCCCCCCC-CC---CCCCCCC--CCCCCCHHHHHHHHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHH Q ss_conf 42465117876310002-41---0136742--001100078889999999999999776212001577632279998759 Q gi|254780943|r 366 TIGSLVNVLESTIARES-DF---IFPIKAG--PEIGVASTKAFTCQLLVLVIMAIYAGKVRGYINEEQERELIRSLVEIP 439 (608) Q Consensus 366 ~tiaItN~~~S~la~~a-D~---~i~~~aG--~Ei~VasTKsftaql~~l~llal~l~~~~g~i~~~~~~~~~~~L~~lp 439 (608) T Consensus 101 ~~~aITS--GG~L~e~A~e~g~~~i~iP~G~qPR~a~p--ysfiPyl~~~~~-~-~~~~~~g----~d~~~~~~~~gd~~ 170 (338) T TIGR02128 101 KVIAITS--GGKLEEMAKEEGLDVIKIPKGLQPRAALP--YSFIPYLLTALI-L-MLIKPLG----IDIEEAERVLGDLK 170 (338) T ss_pred CEEEEEC--CCHHHHHCCCCCCCEEEECCCCCCCCCCC--HHHHHHHHHHHH-H-HHHCCCC----CCHHHHHHHHHHHH T ss_conf 5599944--85388630114875688288611321040--568999999999-9-7621247----42436666788877 Q ss_pred HHHHHHHHHHHHHHHHHHHHHHC-CCCEEEEECC-CCHHHHHHHHHHHHHHHHHHC--CCCCHHHCCCCCHHHHCC---- Q ss_conf 99999999767744677987420-3614552136-644999999999999742211--442324314463788079---- Q gi|254780943|r 440 RKMFDVLQNIYSQIEKLCCGLAK-CQTLLYVGRG-SSYPLALEGALKIKEISYLHA--EGYAAGELKHGPIALITE---- 511 (608) Q Consensus 440 ~~i~~~l~~~~~~i~~~a~~~~~-~~~~~~lG~G-~~y~~A~EgALKlkE~syiha--eg~~agE~kHGP~ali~~---- 511 (608) T Consensus 171 E~l~~~~~~~k~~~~~LA~~i~~G~riPvIy~~~G~~~~iA~R~K~eiNENAK~pA~~~~~p--E~nHNei~~~~~~~~~ 248 (338) T TIGR02128 171 ERLIEDTEKLKALAKRLAEEIYNGYRIPVIYSSSGPTRPIAERWKNEINENAKIPAYFNILP--ELNHNEIEGLEDPKEV 248 (338) T ss_pred HHHHHCCCHHHHHHHHHHHHHHCCCCCEEEEECCCCCHHHHHHHHHHHHHHCCCCCCCCCCC--CCCCCCCCCCCCCCCC T ss_conf 65320165235789999999867920518870788714776777555533126532010057--8755521256786200 Q ss_pred ---CCEEEEEECCCHHHHHH-HHHHHHHHH-CCCEEEEEECCCCCCCCCCCCCCEEECCCC----CHHHHHHHHHHH-HH Q ss_conf ---87189994480146889-999999982-798089995653210001346627986887----815665899999-99 Q gi|254780943|r 512 ---GTFVIAIAPYDRFFQKT-LSNIQEIVT-RGGRVIFITDEEGLKRQDFPSIETIVLPSM----GEIVSPIVFSLP-IQ 581 (608) Q Consensus 512 ---~~~vi~i~~~~~~~~k~-~s~~~Ei~a-rg~~vi~I~~~~~~~~~~~~~~~~i~iP~~----~~~l~pl~~~ip-lQ 581 (608) T Consensus 249 ~~l~~~~~~~~~~d~~r~~~r~~~T~~i~~~~g~~~~~I-----------------~-~~~rGGP~s~la~~~sL~~l~g 310 (338) T TIGR02128 249 YGLYEIVFLSDESDHSRVKKRVDITEKILGEYGVSFISI-----------------Y-SVGRGGPNSLLARILSLIHLAG 310 (338) T ss_pred CCCCEEEEEEECCCCCCCCCHHHEEEHHHCCCCCCCEEE-----------------E-EEECCCCCHHHHHHHHHHHHHH T ss_conf 015124898873676511111101000332614332167-----------------5-3212786138999999999977 Q ss_pred HHHHHHHHHHCCCCCCC Q ss_conf 99999999838779889 Q gi|254780943|r 582 MIAYCTAVLIGTDVDQP 598 (608) Q Consensus 582 llAy~~A~~~G~dpD~P 598 (608) T Consensus 311 ~~Sv~LA~l~g~~P~~~ 327 (338) T TIGR02128 311 LVSVKLAELRGVDPEPV 327 (338) T ss_pred HHHHHHHHHHCCCCCCC T ss_conf 89898999847883136

HHsearch alignment for GI: 254780943 and conserved domain: TIGR02128