7LCE

Structure of D-Glucosaminate-6-phosphate Ammonia-lyase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Structure and Mechanism of d-Glucosaminate-6-phosphate Ammonia-lyase: A Novel Octameric Assembly for a Pyridoxal 5'-Phosphate-Dependent Enzyme, and Unprecedented Stereochemical Inversion in the Elimination Reaction of a d-Amino Acid.

Phillips, R.S.Ting, S.C.Anderson, K.

(2021) Biochemistry 60: 1609-1618

  • DOI: https://doi.org/10.1021/acs.biochem.1c00106
  • Primary Citation of Related Structures:  
    7LC0, 7LCE

  • PubMed Abstract: 

    d-Glucosaminate-6-phosphate ammonia-lyase (DGL) is a pyridoxal 5'-phosphate (PLP)-dependent enzyme that produces 2-keto-3-deoxygluconate 6-phosphate (KDG-6-P) in the metabolism of d-glucosaminic acid by Salmonella enterica serovar typhimurium. We have determined the crystal structure of DGL by SAD phasing with selenomethionine to a resolution of 2.58 Å. The sequence has very low identity with most other members of the aminotransferase (AT) superfamily. The structure forms an octameric assembly as a tetramer of dimers that has not been observed previously in the AT superfamily. PLP is covalently bound as a Schiff base to Lys-213 in the catalytic dimer at the interface of two monomers. The structure lacks the conserved arginine that binds the α-carboxylate of the substrate in most members of the AT superfamily. However, there is a cluster of arginines in the small domain that likely serves as a binding site for the phosphate of the substrate. The deamination reaction performed in D 2 O gives a KDG-6-P product stereospecifically deuterated at C3; thus, the mechanism must involve an enamine intermediate that is protonated by the enzyme before product release. Nuclear magnetic resonance (NMR) analysis demonstrates that the deuterium is located in the pro - R position in the product, showing that the elimination of water takes place with inversion of configuration at C3, which is unprecedented for a PLP-dependent dehydratase/deaminase. On the basis of the crystal structure and the NMR data, a reaction mechanism for DGL is proposed.


  • Organizational Affiliation

    Department of Chemistry, University of Georgia, Athens, Georgia 30602, United States.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
D-glucosaminate-6-phosphate ammonia lyase
A, B, C, D
369Salmonella enterica subsp. enterica serovar TyphimuriumMutation(s): 0 
Gene Names: 
selA_2dgaEA3104_21605A3111_09960A3122_12735A3146_15045A3R41_07565A3S30_02955A3T21_08030A3T81_03495A3U32_14755A3V03_16095A3V89_00235A3W57_03380A3W75_06435A3W86_04545A3X15_00235A3X55_04110A3Y76_07350A3Z96_04130A4J27_00240A4N07_07395A4O05_16705A4O41_15960A4R48_20285A6D61_11415A9C21_08165A9T39_10340A9U46_05925A9U64_14215AAA76_11240AAB27_10705AAB39_09580AAC08_22375AAC35_03015AAC42_07475AAC44_12965AAC98_15720AAQ24_10865AB424_07565ABO94_07150ABP87_07705ADQ28_15815ADQ45_06130AE787_04130AF480_11215AF488_12465AF489_14925AF497_03560AGC55_05030AGM99_04990AGQ32_00230AH984_08495AHN93_11520AIC76_13770AKH62_08615AKH68_15555AKI16_07535APY91_09970AQ530_12475AS118_05705AT354_07990AU613_17865AU805_03345AU830_11590AU839_08945AU951_10085AU965_14750AVA38_16490AVB77_06395AVB94_01990AVC05_03285AVC09_05420AVD08_07985AVD75_06905AVD94_10420AVG17_05175AVL02_11640AVL16_06920AVM19_07240AWT30_07820AXM10_00235AXM23_11675AXR84_06650AXU58_07370AXX99_20725B1265_04750B1398_07865B1642_06605B1B86_06895B1B89_06400B1I91_10675B1P38_09445B1Q82_13995B2E31_11510B4V59_11225B4W90_05125B5A40_02630B6362_02605B6G98_15880B6M25_05275B6M43_12740B7071_05520B7890_15470B7J30_00235B7Q27_04745B8Y16_02890B8Y36_14530B8Z46_05570B9653_18625B9M14_04555B9O84_10005B9U29_13595BBQ66_19075BEL47_14045BGP52_05050BIC00_16670BIC01_11055BIC03_04280BIC13_02610BK110_04945BKM50_17535BLB03_07155BMS46_12040BMU56_20200BSC80_11910BSD55_09105BZ203_16380BZ210_08555BZG47_19060BZN20_09225BZZ88_15855C4E88_12820C5U54_06940C5W43_16235CA117_13580CB102_20575CB119_16505CB161_06635CB198_11260CB380_17240CB383_04725CB530_02085CB535_00175CB570_01230CB657_00235CBH20_03930CBM40_06725CBM67_03730CBM76_13060CBN77_11220CBO42_00235CBR08_02610CBU32_01115CBZ90_15285CC339_14505CC403_03575CC453_00230CC594_06105CC886_09390CC918_00235CC944_20085CC971_07645CCF93_04520CCP17_05010CCW27_18020CD48_04815CD977_15700CDJ75_02455CDT37_05005CDZ72_00235CE355_04080CE615_12255CE70_04735CE806_15205CE87_08585CE896_21755CEC46_19125CEC56_02375CED07_08930CEQ70_11170CER78_03375CET98_06315CEY64_14985CFB16_07970CFB28_16270CFE76_08205CFE79_11130CFF58_22315CFF59_19115CFJ48_05760CGG73_14400CHN22_12270CI444_06460CIX60_11070CJC42_10875CPR79_09105CPS79_03995CPX68_05985CQE35_10530CQG18_03115CQO33_02070CR370_15260CRB02_10605CSG22_20575CVR97_16080D3147_00235D3174_05685D3F31_08530D3T68_09530D3Y48_19240D4361_00240D4369_00240D4380_09495D4387_02320D4422_07370D4E62_06310D4E68_00240D4E74_02175D4X64_02180D4X79_05690D4Y62_05865D5823_19415D5949_13715D5B48_05005D5C67_00240D5C71_11480D5N86_06955D5N95_00240D5O82_09450D5P17_09065D5X47_03110D5Y28_11235D6360_00275D6367_02720D6371_04905D6373_12445D6395_00240D6421_10680D6422_07120D6J79_02575D6K10_09245D6P67_04165D6Q64_05870D6S43_05365D6T00_07770D6T40_10725D7F20_21465D7H43_10555D7N92_03130D7O44_10745D8Q90_03285D8S24_00240D9O84_05575DD95_07090DJ388_10345DJ702_11425DK061_06395DK631_10775DK641_05920DK642_07845DK696_05345DK698_11005DKJ10_10855DKR95_03040DKS55_07075DKU45_07400DKU57_08220DKU80_11340DLB14_09155DLB57_06490DLB93_00240DLR28_04025DM322_03750DMI89_17320DMV40_02585DMZ93_10670DN204_11415DN359_15470DNB97_16355DNL62_00235DNM27_07420DNM63_05200DNU59_06600DNV08_08925DNV12_22105DNV30_10245DNZ37_00240DO350_15285DO533_10945DO585_00240DO640_00240DO698_04005DO828_05535DO960_18855DOH72_08010DOI32_06290DOI53_00275DOI92_07580DOJ91_05370DOQ54_07505DOQ88_06595DOR12_09195DOV43_01485DOW25_05970DP680_00240DPB45_06940DPB48_09455DPD95_04015DPD99_03130DPF41_12160DPF68_05950DPK32_08430DPL02_09045DPP94_11120DPP97_08450DPS76_06440DPT18_06260DPU20_08250DPY58_21110DQ848_00240DQ947_10795DQ951_13090DQC39_12325DQC52_09065DQD03_08600DQE64_00240DQK42_06135DQQ98_04505DQR10_02075DQR44_03115DQR61_02270DQS14_20990DQY10_19985DQZ46_16710DQZ56_05305DR982_16460DRL45_03615DRM14_09020DRM16_02480DRR75_12965DRT61_12205DRT65_06680DRV05_06455DRW84_09175DRX66_00240DS270_05005DS296_13430DS451_21555DS453_00240DS521_06150DS619_07370DSF69_08225DSG41_20795DSN15_04030DSR36_08415DTE73_18135DTF68_09125DTG22_04235DTG27_15945DTW13_07590DTW14_13540DTW26_02575DU223_00180DU657_14935DU821_00240DU879_06295DU924_08765DUQ28_07785DUQ56_16470DUQ92_07545DUR36_07980DUV75_04770DUW10_02530DUW48_08310DVF14_05050DVF88_06690DVG01_08595DVZ53_15260DWU22_19055DY580_08660DYM27_12345DYS82_09190DZG11_15905E0584_00630E0595_11110E0935_00235E0M34_18235E0U75_03505E0V94_06670E1A11_05265E5196_07260E6W45_04890EBB93_02425EBC01_13365EBD14_00240EBD99_09680EBK21_05650EBO41_20635EBP31_08480EC404_07450EC52_14135ECC89_00240ED424_06825ED467_10440EDL18_02440EEK73_11800EEQ30_13355EER35_18550EGL32_09475EGN81_05445EGU67_11330EHB09_17235EHB55_10585EHC98_02435EIE48_09040EIW53_10020EJI18_05270EJO08_11050EJO98_16350EKA25_11620EL822_05540ELO47_13095ELR28_06650ELS01_05755EM832_11295EM840_09780EMN66_04645EMY79_15795EO190_18975EP115_07090EP446_06715EPB30_05540EPH81_06660EQG93_07825EQG94_09250ERM04_03100EU306_03130EU349_07740EU873_00180EUQ65_10430EUQ74_00240EUS13_02440EVY71_23275EW905_00175EWB18_17085EWE52_14555EWJ47_07780EWZ09_02215EXA47_08960EXB31_05605EXB41_06725EYA29_07825EYJ91_20305F0D96_19290F2O93_12040F2P00_06605F3Q46_04325F3Q58_02410F3Q59_06345F3Q88_01060F3Q97_07950F3R12_09345F3R61_02230F3R63_05095F9G02_17445F9O44_10085FE758_16315FJM64_04360FL833_04125FQC24_04530FQD13_14295G0038_05905G0040_17515G0042_11585G0045_09800G0047_04965G0048_08470G0051_05035G0052_10225G0059_05310G0061_07560G0062_08145G0063_08025G0067_08640G0069_08215G0070_17335G0071_06575G0072_13865G0074_09615G0076_06860G0077_08400G0080_10265G0084_11025G0086_10525G0087_08470G0088_07565G0089_24050G0090_03130G0094_03360G0100_23465G0101_07665G0102_07355G0111_06985G0113_08455G0117_05190G0123_08470G0124_08205G0148_07230G0157_07885G0170_09205G0A05_13435G0A28_19680G0A32_12905G0A39_19405G0A43_18505G0A46_20665G0A50_13145G0A51_13555G0A52_20510G0A60_11970G0A61_12165G0A63_10835G0A67_15570G0A68_11040G0A70_12455G0A76_09550G0A79_14300G0A92_05965G0A97_12565G0B03_05725G0B05_02180G0B07_02085G0B08_22240G0B12_00240G0B96_05695G0C03_02550G0C04_06550G0C34_07930G0E15_12285G0E20_21705G0J24_04435G0J26_07840G0J27_01470G0J28_05610G0J31_20395G0J33_04105G0J34_08885G0J36_05910G0J37_08625G0J40_07450G0J44_08740G0J45_05875G0J46_06385G0J47_08505G0J49_06645G0J50_09345G0J51_07485G0J53_02615G0J55_05325G0J58_03610G0J59_15850G0J62_08675G0J65_11105G0J66_02280G0J67_05475G0J69_02410G0J71_02410G0J73_11645G0J76_02420G0J79_18650G0J81_05100G0J85_05100G0J89_11575G0J92_10820G0J94_11985G0J96_10390G0J97_14955G0K00_17375G0K03_06240G0K04_14270G0K05_08930G0K07_02410G0K10_06835G0K13_05515G0K15_04050G0K16_10760G0K18_14355G0K19_03030G0K20_11195G0K23_06230G0K25_00240G0K26_17405G0K28_11645G0K30_05630G0K31_02225G0K32_18475G0K33_05010G0K37_00240G0K38_09780G0K39_15835G0K41_07335G0K42_07825G0K44_16875G0K46_05100G0K47_19060G0K48_10980G0K49_11770G0K52_12965G0K53_13120G0K56_11430G0K58_10200G0K59_12505G0K61_08160G0K65_06450G0K68_04385G0K70_15725G0K72_03355G0K74_12235G0K75_06340G0K78_16920G0K80_12825G0K83_04965G0K85_10130G0L25_16420G0L31_14425G0L32_08690G0L34_08105G0L35_20795G0L36_14945G0L37_09110G0L38_11490G0L40_21035G0L42_16900G0L48_07660G0L49_02470G0L51_19890G0L52_20660G0L55_18750G0L67_13070G0L68_20065G0L70_07980G0L73_13585G0L76_17550G0L77_11200G0L83_10285G0L88_19875G0L93_18390G0L96_20235G0L98_18225G0M00_19570G0M21_14965G0M30_17360G0M33_16950G0M35_12335G0M36_18250G0N45_04380G0N48_08260G0N51_11665G0N53_03490G0N55_07025G0N57_13470G0N58_04060G0N59_10005G0N60_09080G0N61_04965G0N62_04540G0N64_06650G0N65_05590G0N66_21090G0N67_06670G0N71_07665G0N75_10020G0N78_06135G0N82_06235G0N84_07205G0N85_03490G0N86_10660G0N88_07085G0N89_05685G0N90_07165G0N92_11300G0N94_07575G0N95_15445G0N98_09015G0N99_10120G0O00_03325G0O03_06970G0O10_06195G0O14_10965G0O15_13285G0O18_14145G0O19_08800G0O20_17425G0O22_05125G0O25_20055G0O27_07025G0O31_07570G0O32_21335G0O36_21525G0O39_04960G0O40_12880G0O41_07440G0O43_08505G0O44_04920G0O47_08020G0O52_21675G0O55_06740G0O57_07305G0O58_09440G0O59_13640G0O60_08790G0O63_04375G0O66_12960G0O68_06785G0O70_08215G0O71_08220G0O74_07190G0O75_06905G0O77_08060G0O78_07830G0O80_06955G0O81_02860G0O82_09670G0O84_08215G0O85_05165G0O86_09770G0O87_07360G0O88_03240G0O89_05405G0O92_08325G0O93_03630G0O94_12755G0O97_09015G0O99_10900G0P00_14390G0P01_14665G0P02_06035G0P05_12305G0P06_07745G0P08_08440G0P12_12695G0P13_05070G0P17_06150G0P18_07030G0P19_04865G0P24_11795G0P26_08220G0P28_08290G0P30_07950G0P31_10265G0P36_13335G0P37_11525G0P41_13560G0P44_12170G0P45_14285G0P48_07355G0P49_11185G0P52_05035G0P53_09245G0P56_09400G0P57_08220G0P58_04380G0P63_13655G0P65_04270G0P67_09515G0P68_15025G0P69_13380G0P73_11960G0P75_19470G0P76_20900G1O10_07355G1P61_07755G1P78_03080G1P83_03095G2203_07390G2212_08770G2221_13825G2290_12030G2793_12950G2918_12910G2951_05600G3221_002461G3230_003350G3231_003124G3247_001587G3248_002520G3263_002773G3270_002858G3275_000607G3312_001215G3336_001483G3357_001539G3369_002117G3433_003279G3460_000048G3464_003259G3A35_05400G3V06_004273G3V14_002992G3V17_003950G3V21_001420G3V56_000436G3V57_002645G3X03_004111G4189_000938G4190_003975G4192_004415G4198_002583G4201_001978G4202_001352G4A01_001700G4A83_001807G4A85_000671G4A87_001005G4B68_003747G4B72_003627G4B74_000558G4C74_000608G4D32_004267G4D46_004008G4F88_00370G4F89_00370G4F91_00370G4F92_00370G4G47_002570G4G67_002555G4G68_003571G4G76_003775G4G79_002547G4G97_004277G4H00_000670G4H04_002753G4H07_003539G4H08_003660G4H18_000608G4H21_000608G4H24_000607G4H63_002557G4I66_002831G4J07_001603G4J08_001574G4J11_002933G4J12_003190G4J18_004388G4J20_002959G4J37_003102G4J39_003166G4J41_002973G4J45_002325G4J90_001589G4K02_003670G4K03_001902G4O54_004300G4O56_001447G4O59_004199G4O60_004410G4O67_003632G4O69_004091G4P29_002967G4P83_001728G4P85_000670G4P89_003632G4P91_003586G4P93_003012G4Q12_001802G4Q28_000607G4Q31_000605G4Q50_002019G4Q52_001653G4Q59_002683G4Q60_000670G4Q63_002117G4Q67_003536G4Q94_003028G4R01_000669G4R02_003778G4R15_003726G4R16_000614G4W73_000432G4W86_003908G4W87_000607G4W88_000607G4W91_000048G4Y10_003178G9269_000711G9302_000670G9304_003120G9305_002536G9309_003364G9313_000670G9314_003368G9367_001351G9381_002972G9C24_000259G9C41_004198G9C46_002377G9C47_004436G9C49_004027G9C57_000605G9C64_003813G9G03_004136G9G04_002988G9G34_001906G9G36_003863G9G45_002336G9G50_002760G9G62_002931G9W19_002475G9W28_001548G9W45_002746G9W52_002669G9W63_002107G9W65_000605G9W79_002017G9W95_000608G9W96_003645G9X40_002052GB021_11435GB040_06400GB076_10055GB106_05325GB114_07815GB120_04950GB122_13355GB139_06265GB171_03525GB209_07450GB221_07260GB238_15175GB280_05035GB321_06910GB339_12600GB342_04485GB368_11605GB416_12110GB459_13610GB466_11405GB505_11285GB551_03595GB645_19215GBS58_05415GBW03_18930GBW44_14320GBW52_03920GBW76_13155GBX20_14340GBX55_07035GBX64_03350GBY13_10615GBY23_14735GBY73_05465GBZ51_19350GCH31_10010GCQ81_08735GCZ80_14565GEZ01_02385GJE27_05045GJE28_03920GNA88_002595GNA97_002742GNA99_002309GNB28_002637GNB36_000501GNB86_003979GNC11_000604GNC19_004412GNC45_003965GNC75_004026GNC95_004342GT380_04835GTH60_03240GTH62_18910GTH63_07720GTH66_07825GTH67_16665GTH68_08150GTH72_22355GTH73_04965GTH75_05695GTH79_13140GTH81_12785GTH85_08460GTH87_08790GTH91_16020GTH93_08215GTH94_05215GW08_10275GXC51_04920GXC56_04920GXG40_04920GYI58_10120GYI62_000613GYI77_08610GYJ04_09620GYJ24_19790GYJ27_19010GYJ30_09425GYJ32_10720JO10_10940KP44_05010LZ63_11700NCTC13348_05383NG02_09455NG06_03180NG18_09875NU83_16200QA89_05780QD15_00240R035_07335RJ78_11910SE14_03992Y934_02410YG50_14220YR17_12730Z700_02955ZB89_00275ZC54_05665ZT09_16440ZT28_05370ZT74_02580ZT89_14290ZU86_20300ZU92_09900ZV06_05630ZV33_02980ZV34_03345ZV38_15785ZV58_14295ZV70_05935ZV78_06520ZW74_10075ZX03_14710ZY23_00235ZY27_13660ZY40_20350ZY51_07350ZZ18_15495ZZ43_14445ZZ77_18640ZZ79_05625

EC: 2.9.1.1
UniProt
Find proteins for D0ZLR3 (Salmonella typhimurium (strain 14028s / SGSC 2262))
Explore D0ZLR3 
Go to UniProtKB:  D0ZLR3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0ZLR3
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
DMS
Query on DMS

Download Ideal Coordinates CCD File 
E [auth A]
F [auth A]
G [auth A]
N [auth B]
S [auth C]
E [auth A],
F [auth A],
G [auth A],
N [auth B],
S [auth C],
W [auth D]
DIMETHYL SULFOXIDE
C2 H6 O S
IAZDPXIOMUYVGZ-UHFFFAOYSA-N
CA
Query on CA

Download Ideal Coordinates CCD File 
H [auth A]
I [auth A]
J [auth A]
K [auth A]
L [auth A]
H [auth A],
I [auth A],
J [auth A],
K [auth A],
L [auth A],
M [auth A],
O [auth B],
P [auth B],
Q [auth B],
R [auth B],
T [auth C],
U [auth C],
V [auth C],
X [auth D],
Y [auth D],
Z [auth D]
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Modified Residues  1 Unique
IDChains TypeFormula2D DiagramParent
LLP
Query on LLP
A, B, C, D
L-PEPTIDE LINKINGC14 H22 N3 O7 PLYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.58 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.193 
  • R-Value Observed: 0.194 
  • Space Group: P 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 60.374α = 90
b = 171.569β = 90
c = 195.054γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
Aimlessdata scaling
PHASERphasing
Cootmodel building

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United States1R01-GM137008

Revision History  (Full details and data files)

  • Version 1.0: 2021-06-09
    Type: Initial release
  • Version 1.1: 2023-10-18
    Changes: Data collection, Database references, Refinement description
  • Version 1.2: 2023-11-15
    Changes: Data collection