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. Author manuscript; available in PMC: 2021 Dec 20.
Published in final edited form as: Chem Rev. 2021 Mar 16;121(9):5193–5239. doi: 10.1021/acs.chemrev.0c01005

Table 1.

LGP of CRE/ESKAPE and Other Pathogensa

LGPb strainc metal complexd protein ligandse aa massf pIg E. coli K-12 orthologueh NCBI refi PDB
Commensal E. coli
FecA MG1655 FeCit ND 741 81 707 5.61 NSI NP_418711.1 1PNZ
FepA MG1655 FeEnt colB, D; H8, mE495 724 79 771 5.4 53% IroN NP_415116.1 1FEP
FhuA MG1655 Fc colM, T1, T5, φ80 714 78 742 5.3 NSI NP_414692.1 1BY5
Fiu MG1655 FeDHBS ND 727 78 432 5.75 NSI NP_415326.1 6BPN
FhuE MG1655 FeRta ND 693 77 411 4.89 NSI NP_415620.1 6E4V
Cir MG1655 FeDHBS colIa, Ib, 638 71 149 5.2 35% FepA NP_416660.1 2HDF
BtuB MG1655 B12 ColE1, E3, BF23 594 66 325 5.35 NSI NP_418401.1 1NQE
Pathogenic E. coli
YddB UPEC 042 ND ND 771 87 206 6.06 NSI CBG34449.1 6OFR
IutA 083:H1j FeAbn cloacin DF13, colV 708 78 061 5.23 NSI WP_000973516.1 ND
IroN 083:H1j FeGEnt ND 701 76 525 5.79 52% FepA ADR29866.1 ND
YncD UPEC C15 ND ND 677 74 900 5.32 NSI AKC11926.1 6V81
FyuA 0157:H7 FeYbt pesticin 551 71 387 5.52 NSI EFB2704300.1 ND
ChuA 0157:H7 Hn ND 632 69 436 5.27 NSI NP_312407.1 ND
LGP1 0157:H7 ND ND 687 76 150 5.48 NSI QGF16871.1 ND
LGP2 0157:H7 ND ND 634 71 005 5.69 NSI QGF15879.1 ND
K. pneumoniae
FepA4 Kp52.145 FeEnt ND 728 80 070 5.67 72% FepA WP_004179434.1 ND
FepA1 Kp52.145 FeEnt ND 717 79 665 5.41 81% FepA CDO13414.1 ND
FhuA Kp52145 Fc ND 715 79 054 5.34 89% FhuA WP_048972727.1 ND
IutA hvKP1 FeAbn cloacin DF13 708 78 043 5.23 NSI CDO11693.1 ND
Fiu KP52145 FeDHBS ND 727 78 023 5.71 77% Fiu WP_171841556.1 ND
FepA2 KP52145 ND ND 701 77 382 5.31 51% FepA CDO16709.1 ND
FhuE KP52145 FeRTAl ND 695 76 897 5.25 50% FhuE AYK02175.1 ND
IroN KP52145k FeGEnt ND 700 76 760 6.41 51% FepA WP_042940746.1 ND
FcuA KP52145 ND ND 703 76 166 5.57 NSI EMB11413.1 ND
YncD hvKP1 ND ND 677 74 569 5.75 NSI EMB10697.1 ND
FyuA hvKP1 FeYbt pesticin 652 71 400 5.52 NSI CDO15344.1 ND
Cir Kp52.145 FeDHBS 632 70 367 5.35 82% Cir EMB11539.1 ND
ChuA hvKP1 Hn ND 613 67 571 5.27 100% ChuA WP_001322816.1 ND
BtuB KP52145 B12 ND 592 66 035 5.32 57% BtuB CDO16333.1 ND
LGP1 KP52145 ND ND 737 81 135 5.62 NSI QDA45483.1 ND
LGP2 KP52145 ND ND 680 74 658 5.64 33% FhuA EMB11926.1 ND
A. baumannii
Fiu 17978 FeDHBS ND 771 84 285 6.89 34% Fiu AZM39353.1 ND
BfnH 17978 FeBfn ND 728 80 491 5.84 NSI ABO12082.2 ND
FepA 17978 FeEnt ND 730 80 248 5.67 45% FepA WP_005135700.1 ND
PiuA 17978 FeDHBS ND 736 80 054 6.23 31% Fiu ABO10929.1 5FP1
PirA 17978 FeDHBS ND 714 78 022 5.43 NSI SCX98474.1 5FR8
BauA 17978 FeAcn ND 712 77 497 7.6 NSI ABO12804.2 ND
BauA 19606 FeAcn ND 703 76 016 5.62 NSI WP_001073039.1 6H7V
FhuA 19606 Fc ND 679 75 739 5.59 25% FhuA ABO12348.2 ND
FbsN 19606 FeFbn ND 629 68 763 6.82 25% FhuA ABO12983.2 ND
BtuB 19606 B12 ND 598 65 781 5.71 25% BtuB ABO13283.2 ND
LGP1 19606 ND ND 862 93 996 5.08 NSI CAA0247590.1 ND
LGP2 19606 ND ND 781 88 811 6.63 34% FecA ABO13864.1 ND
LGP3 19606 ND ND 697 78 847 5,8 NSI ABO13728.2 ND
LGP4 19606 ND ND 674 77 325 5.52 NSI EEX02122.1 ND
LGP5 19606 ND ND 681 75757 5.48 25% FhuA ABO11495.2 ND
LGP6 19606 ND ND 669 74 690 5.18 42% FepA ABO13298.2 ND
P. aeruginosa
HxuA PAO1 Hn ND 965 95 071 7.33 NSI CRQ69633.1 ND
HasR PAO1 Hn ND 855 94 205 5.85 NSI NP_252098.1 ND
FpvA PAO1 FePvd pyocins S2, S3, S4 772 86 469 5.27 NSI NP_251088.1 2IAH
PupA PAO1 FePch ND 777 86 005 5.28 NSI AMU01031.1 ND
FoxA PAO1 FxB ND 773 85 273 5.05 32% FhuA NP_251156.1 6196
ChuA PAO1 Hn ND 737 81 892 5.99 NSI AAC13289.1 ND
FepA1 PAO1 FeEnt? ND 735 80 919 5.85 71% FepA MXH37568.1 ND
PiuD PAO1 FeDHBS ND 731 80 149 5.68 NSI WP_132667204.1 5NEC
FepA2 PAO1 FeEnt? ND 717 79 687 5.19 81% FepA MXH36562.1 5NEC
P. aeruginosa
PfeA PAO1 FeEnt ND 721 78 503 5.8 60% IroN NP_251378.1 6Q5E
PiuA PAO1 ND ND 729 78 313 5.7 77% Fiu MXH35875.1 5FOK
ChtA PAO1 FeRTAl ND 714 78 166 5.45 NSI PTC33848.1 ND
IutA PAO1 FeAbn ND 708 78 161 4.96 72% IutA MXH36073.1 ND
PirA PAO1 FeDHBS ND 714 77 992 5.43 56% FepA AAG04320.1 5FP2
FhuA PAO1 Fc ND 702 77 881 5.37 61% FhuA MXH37021.1 ND
IroN PAO1 FeGEnt ND 714 77 866 5.38 60% IroN WP_058129121.1 ND
FptA PAO1 FePch pyocin E5 682 75 597 5.58 NSI NP_252911.1 1XKW
FhuE PAO1 FeRTAl ND 689 75 467 5.14 46% FhuE CRQ23141.1 ND
FvbA PAO1 FeVbn ND 665 73 731 5.46 NSI WP_003093526.1 ND
Cir PAO1 FeDHBS ND 632 70 398 5.31 80% Cir MXH34319.1 ND
BtuB PAO1 B12 ND 598 66 521 5.38 57% BtuB MXH38591.1 ND
LGP1 PAO1 ND ND 821 92 251 6.39 NSI BAQ41081.1 ND
Y. pestis
HasR KIM6+ Hn ND 795 89 654 7.96 56% HasR WP_002209485.1 ND
IutA KIM6+ FeAbn ND 745 82 439 5.36 67% IutA WP_087813403.1 ND
FhuE KIM6+ FeRTAl ND 717 79 827 7.8 27% FhuE WP_002211883.1 ND
FhuA KIM6+ Fc ND 716 78 382 5.99 26% FhuA AAS63640.1 ND
huA KIM6+ Hn ND 690 75 802 5.24 68% ChuA WP_002209062.1 ND
Cir KIM6+ FeDHBS ND 679 75 555 6.0 38% Cir WP_071526008.1 ND
BtuB KIM6+ B12 ND 672 72 172 5.45 65% BtuB WP_058987704.1 ND
Psn KIM6+ FeYbt pesticin 651 71 442 5.62 NSI AAC69592.1 4EPA
LGP1 KIM6+ Cu++? ND 698 76 423 8.82 28% BtuB WP_002208882.1 ND
LGP2 KIM6+ Hn? ND 667 76 274 5.34 45% YoeA WP_002211632.1 ND
LGP3 KIM6+ FeDHBS ND 678 74 129 6.2 31% Cir AAM84435.1 ND
Other Gram (−) Pathogens
HasR S. marscescens m Hn ND 865 94 847 6.2 NSI CAE46936.1 3CSN
FauA B. pertussis alcaligin ND 699 77 593 6.75 NSI WP_014905926.1 3EFM
FrpB N. meningitidis n FeEnt? ND 692 76 823 9.42 NSI AAF42315.1 4AIP
a

We identified 79 LGP that participate in the uptake of ferric siderophores, heme or other metal complexes. This list, that is not fully comprehensive, illustrates the breadth of metal chelate recognition in Gram (−) bacterial pathogens. We used sequences of the mature proteins for analysis by CLUSTALΩ, the results of which appear in Figures S1 and 5.

b

LGP reflect standard nomenclature; if function is unknown, the protein is enumerated: e.g., EcoLGP1, EcoLGP2, etc.

c

Bacterial strain from which the genomic information originated.

d

Ferric siderophore or metal porphyrin; see text for abbreviations.

e

Abbreviations: col, colicin; m, microcin.

f

Mass (Da) of the mature protein.

g

Isoelectric point of the mature protein.

h

Extent of identity to the closest homologue in E. coli K-12 strain MG1655; NSI; NSI, no significant identity (i.e., <25%).

i

Entries originated from the NCBI PROTEIN database.

j

Structural gene resides on pNRG857c in strain O83:H1.

k

Structural gene resides on pLVPK in strain Kp52.145, also called pII.

l

LGP that recognize RTA often also bind FxB or coprogen.

m

S. marcescens strain SM365.

n

N. meningitidis strain MC58.