Sites on a Tree

 

Searching for up to 100 curated homologs for 18233 FitnessBrowser__Keio:18233 (470 a.a.)

Found high-coverage hits (≥70%) to 67 curated proteins.

Removed hits that are identical to the query, leaving 66

You can add additional sequences or change the %identity threshold for inclusion. Once you have selected sequences, you can build an alignment and a tree.

Hits with ≥ 30% identity

CYCA_ECOL6 / A0A0H2VDI7 D-serine/D-alanine/glycine transporter from Escherichia coli O6:H1 (strain CFT073 / ATCC 700928 / UPEC) (see 2 papers)
    99% identity, 100% coverage of query (935 bits)

TC 2.A.3.1.17 / M1IW84 D-serine/L-alanine/D-alanine/glycine/D-cycloserine uptake porter of 556 aas, CycA from Mycobacterium bovis BCG str. Korea 1168P
    59% identity, 98% coverage of query (523 bits)

RR42_RS28305 L-threonine:H+ symporter from Cupriavidus basilensis FW507-4G11
    45% identity, 99% coverage of query (427 bits)

TC 2.A.3.1.6 / P37460 Proline-specific permease (ProY) from Salmonella typhimurium (see 2 papers)
    41% identity, 97% coverage of query (356 bits)

RR42_RS33495 L-phenylalanine:H+ symporter AroP from Cupriavidus basilensis FW507-4G11
    40% identity, 98% coverage of query (355 bits)

AroR / b0112 aromatic amino acid:H+ symporter AroP from Escherichia coli K-12 substr. MG1655 (see 5 papers)
aroP / P15993 aromatic amino acid:H+ symporter AroP from Escherichia coli (strain K12) (see 6 papers)
AROP_ECOLI / P15993 Aromatic amino acid transport protein AroP; Aromatic amino acid:H(+) symporter AroP; General aromatic amino acid permease; General aromatic transport system from Escherichia coli (strain K12) (see 8 papers)
TC 2.A.3.1.3 / P15993 Aromatic amino acid:H+ symporter, AroP of 457 aas and 12 TMSs (Cosgriff and Pittard 1997). Transports phenylalanine, tyrosine and tryptophan from Escherichia coli (see 6 papers)
    40% identity, 98% coverage of query (351 bits)

AO356_17670 L-alanine and D-alanine permease from Pseudomonas fluorescens FW300-N2C3
    43% identity, 93% coverage of query (351 bits)

PfGW456L13_4291 L-tryptophan transporter from Pseudomonas fluorescens GW456-L13
    40% identity, 97% coverage of query (346 bits)

AO353_12275 histidine permease from Pseudomonas fluorescens FW300-N2E3
    41% identity, 97% coverage of query (345 bits)

AO353_16120 D-alanine and L-alanine transporter from Pseudomonas fluorescens FW300-N2E3
    43% identity, 93% coverage of query (344 bits)

SERP2_LACLM / A2RI86 DL-alanine permease SerP2 from Lactococcus lactis subsp. cremoris (strain MG1363) (see 2 papers)
    42% identity, 97% coverage of query (343 bits)

AO356_18530 L-tyrosine transporter from Pseudomonas fluorescens FW300-N2C3
    38% identity, 97% coverage of query (340 bits)

TC 2.A.3.1.20 / F2HQ24 Serine transporter, SerP2 or YdgB, of 459 aas and 12 TMSs (Trip et al. 2013). Transports L-alanine (Km = 20 μM), D-alanine (Km = 38 μM), L-serine, D-serine (Km = 356 μM) and glycine (Noens and Lolkema 2015). The encoding gene is adjacent to the one encoding SerP1 (TC# 2.A.3.1.21) from Lactococcus lactis subsp. lactis (strain CV56)
    42% identity, 97% coverage of query (338 bits)

YajM / b0402 putative transporter ProY from Escherichia coli K-12 substr. MG1655 (see 6 papers)
TC 2.A.3.1.23 / P0AAE2 ProY of 457 aas and 12 TMSs from Escherichia coli (strain K12)
    41% identity, 96% coverage of query (337 bits)

PS417_05405 L-alanine and D-alanine permease from Pseudomonas simiae WCS417
    43% identity, 93% coverage of query (337 bits)

PheP / b0576 phenylalanine:H+ symporter PheP from Escherichia coli K-12 substr. MG1655 (see 3 papers)
pheP / P24207 phenylalanine:H+ symporter PheP from Escherichia coli (strain K12) (see 3 papers)
PHEP_ECOLI / P24207 Phenylalanine-specific permease; Phenylalanine:H(+) symporter PheP from Escherichia coli (strain K12) (see 6 papers)
TC 2.A.3.1.1 / P24207 Phenylalanine:H+ symporter, PheP of 458 aas and 12 established TMSs from Escherichia coli (see 6 papers)
    38% identity, 96% coverage of query (337 bits)

H281DRAFT_04042 phenylacetate transporter from Paraburkholderia bryophila 376MFSha3.1
    40% identity, 90% coverage of query (330 bits)

YBXG_BACSU / P54425 Probable threonine/serine transporter YbxG from Bacillus subtilis (strain 168) (see paper)
    42% identity, 97% coverage of query (328 bits)

YifK / b3795 putative transporter YifK from Escherichia coli K-12 substr. MG1655 (see 5 papers)
thrP / P27837 threonine/serine:H+ symporter ThrP from Escherichia coli (strain K12) (see 5 papers)
    39% identity, 97% coverage of query (325 bits)

TC 2.A.3.1.21 / F2HQ25 Serine uptake transporter, SerP1, of 259 aas and 12 TMSs (Trip et al. 2013). L-serine is the highest affinity substrate (Km = 18 μM), but SerP1 also transports L-threonine and L-cysteine (Km values = 20 - 40 μM) from Lactococcus lactis subsp. lactis (strain CV56)
    40% identity, 95% coverage of query (322 bits)

SERP1_LACLM / A2RI87 Serine permease SerP1 from Lactococcus lactis subsp. cremoris (strain MG1363) (see 2 papers)
    42% identity, 84% coverage of query (319 bits)

YncF / b1453 L-asparagine transporter from Escherichia coli K-12 substr. MG1655 (see 2 papers)
ANSP_ECOLI / P77610 L-asparagine permease; L-asparagine transport protein from Escherichia coli (strain K12) (see paper)
TC 2.A.3.1.24 / P77610 Asparagine transporter of 499 aas and 12 TMSs, 91% identical to the orthologue in Salmonella enterica (2.A.3.1.8) from Escherichia coli (strain K12)
    37% identity, 97% coverage of query (296 bits)

GABP_BACSU / P46349 Gamma-aminobutyric acid permease; GABA permease; 4-aminobutyrate permease; Gamma-aminobutyrate permease; Proline transporter GabP from Bacillus subtilis (strain 168) (see 3 papers)
TC 2.A.3.1.5 / P46349 β-alanine/γ-aminobutyrate/proline/3,4-dehydroproline:H+ symporter, GabP from Bacillus subtilis (see 4 papers)
gabP / AAC44641.1 gamma-aminobutyrate permease from Bacillus subtilis (see 2 papers)
    35% identity, 96% coverage of query (296 bits)

gabP / AAB62306.1 GabP from Bacillus subtilis (see 4 papers)
    35% identity, 96% coverage of query (295 bits)

TC 2.A.3.1.8 / P40812 Asparagine permease (AnsP) of 497 aas and 12 TMSs from Salmonella typhimurium (see 2 papers)
ansP / AAA80001.1 L-asparagine permease from Salmonella enterica (see paper)
    37% identity, 97% coverage of query (294 bits)

ANSP2_MYCTU / P9WQM7 L-asparagine permease 2; L-asparagine transport protein 2 from Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) (see paper)
    35% identity, 92% coverage of query (274 bits)

YVBW_BACSU / O32257 Uncharacterized amino acid permease YvbW from Bacillus subtilis (strain 168)
    38% identity, 82% coverage of query (265 bits)

LYSP_LACLM / A2RNZ6 Lysine-specific permease LysP; Lysine transporter LysP from Lactococcus lactis subsp. cremoris (strain MG1363) (see paper)
    33% identity, 98% coverage of query (253 bits)

AO353_05930 L-tryptophan transporter from Pseudomonas fluorescens FW300-N2E3
    33% identity, 85% coverage of query (251 bits)

TC 2.A.3.1.18 / K7VV21 The lysine specific transporter, LysP of 488 aas and 12 TMSs from Lactococcus lactis subsp. cremoris UC509.9
    33% identity, 98% coverage of query (250 bits)

MmuP / b0260 CP4-6 prophage; S-methyl-L-methionine transporter from Escherichia coli K-12 substr. MG1655 (see 3 papers)
mmuP / Q47689 CP4-6 prophage; S-methyl-L-methionine transporter from Escherichia coli (strain K12) (see 2 papers)
TC 2.A.3.1.10 / Q47689 S-Methylmethionine permease, MmuP from Escherichia coli (see 3 papers)
    33% identity, 96% coverage of query (243 bits)

CadR / b2156 lysine:H+ symporter from Escherichia coli K-12 substr. MG1655 (see 15 papers)
lysP / P25737 lysine:H+ symporter from Escherichia coli (strain K12) (see 13 papers)
LYSP_ECOLI / P25737 Lysine-specific permease LysP; Lysine transporter LysP; Trigger transporter LysP from Escherichia coli (strain K12) (see 7 papers)
TC 2.A.3.1.2 / P25737 Lysine:H+ symporter. Forms a stable complex with CadC to allow lysine-dependent adaptation to acidic stress (Rauschmeier et al. 2013). The Salmonella orthologue is 95% identical to the E. coli protein and is highly specific for Lysine. Residues involved in lysine binding have been identified from Escherichia coli (see 5 papers)
lysP lysine-specific permease from Escherichia coli K12 (see 5 papers)
    35% identity, 87% coverage of query (240 bits)

HISP_LACLM / A2RI97 Histidine permease HisP from Lactococcus lactis subsp. cremoris (strain MG1363) (see paper)
    40% identity, 73% coverage of query (238 bits)

ROCE_BACSU / P39137 Amino-acid permease RocE from Bacillus subtilis (strain 168) (see paper)
TC 2.A.3.1.11 / P39137 L-Arginine permease, RocE from Bacillus subtilis (see 3 papers)
    32% identity, 98% coverage of query (231 bits)

GabP / b2663 4-aminobutanoate:H+ symporter from Escherichia coli K-12 substr. MG1655 (see 11 papers)
gabP / P25527 4-aminobutanoate:H+ symporter from Escherichia coli (strain K12) (see 10 papers)
GABP_ECOLI / P25527 Gamma-aminobutyric acid permease; GABA permease; 4-aminobutyrate carrier; 4-aminobutyrate permease; Gamma-aminobutyrate permease from Escherichia coli (strain K12) (see 7 papers)
TC 2.A.3.1.4 / P25527 γ-aminobutyrate:H+ symporter, GabP. It also transports a variety of pyridine carboxylates. Phosphatidylethanolamine is required for its proper topological organization(Zhang et al. 2005) from Escherichia coli (see 5 papers)
    30% identity, 94% coverage of query (225 bits)

AROP_CORGL / Q46065 Aromatic amino acid transport protein AroP; General aromatic amino acid permease from Corynebacterium glutamicum (strain ATCC 13032 / DSM 20300 / BCRC 11384 / JCM 1318 / LMG 3730 / NCIMB 10025) (see paper)
TC 2.A.3.1.12 / Q46065 Aromatic amino acid permease, AroP from Corynebacterium glutamicum (Brevibacterium flavum) (see 2 papers)
    32% identity, 85% coverage of query (220 bits)

BAUD_PSEAE / Q9I703 Probable GABA permease; 4-amino butyrate transport carrier; Gamma-aminobutyrate permease from Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1) (see paper)
    32% identity, 94% coverage of query (217 bits)

LYP1_YEAST / P32487 Lysine-specific permease from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) (see 2 papers)
TC 2.A.3.10.10 / P32487 Lysine permease of 611 aas and 13 putative TMSs, Lyp1 from Saccharomyces cerevisiae (Baker's yeast) (see 9 papers)
LYP1 / GI|1302328 lysine-specific permease from Saccharomyces cerevisiae
    32% identity, 92% coverage of query (206 bits)

TC 2.A.3.1.22 / F2HN33 Transporter for phenylalainine, tyrosine and tryptophan of 449 aas and 12 TMSs, FywP or YsjA from Lactococcus lactis subsp. lactis (strain CV56)
    33% identity, 73% coverage of query (202 bits)

agtA amino acid transporter from Emericella nidulans (see 2 papers)
    32% identity, 86% coverage of query (202 bits)

FYWP_LACLM / A2RMP5 Aromatic amino acid permease FywP from Lactococcus lactis subsp. cremoris (strain MG1363) (see paper)
    34% identity, 73% coverage of query (201 bits)

CAN1_CANGA / Q6FNY1 Arginine permease CAN1 from Candida glabrata (strain ATCC 2001 / BCRC 20586 / JCM 3761 / NBRC 0622 / NRRL Y-65 / CBS 138) (Yeast) (Nakaseomyces glabratus) (see paper)
    32% identity, 89% coverage of query (200 bits)

PUT4_SCHPO / Q9URZ3 Probable proline-specific permease put4 from Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) (see paper)
    34% identity, 93% coverage of query (196 bits)

PUT4_YEAST / P15380 Proline-specific permease from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) (see paper)
TC 2.A.3.10.3 / P15380 Proline permease from Saccharomyces cerevisiae (Baker's yeast) (see 4 papers)
PUT4 / RF|NP_014993.1 proline-specific permease from Saccharomyces cerevisiae
    31% identity, 85% coverage of query (193 bits)

GAP2_CANAL / A0A1D8PK89 General amino-acid permease GAP2 from Candida albicans (strain SC5314 / ATCC MYA-2876) (Yeast) (see 6 papers)
TC 2.A.3.10.24 / Q59YT0 General amino and permease and transceptor, GAP2. Transports all amino acids including citruline and eight tested toxic amino acid derivatives from Candida albicans (see paper)
    32% identity, 82% coverage of query (190 bits)

YI26_SCHPO / Q9P768 Uncharacterized amino-acid permease P7G5.06 from Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) (see paper)
per1 plasma membrane amino acid permease Per1 from Schizosaccharomyces pombe (see 2 papers)
    31% identity, 96% coverage of query (187 bits)

GAP3_CANAL / A0A1D8PN88 Amino-acid permease GAP3 from Candida albicans (strain SC5314 / ATCC MYA-2876) (Yeast) (see 5 papers)
    32% identity, 86% coverage of query (186 bits)

GAP4_CANAL / Q59WB3 S-adenosylmethionine permease GAP4; SAM permease; Amino-acid permease GAP4 from Candida albicans (strain SC5314 / ATCC MYA-2876) (Yeast) (see 6 papers)
TC 2.A.3.10.25 / Q59WB3 Arginine transporter, GAP4 from Candida albicans (see paper)
GAP4 potential general amino acid permease from Candida albicans (see paper)
    32% identity, 89% coverage of query (184 bits)

Build an alignment

Build an alignment for 18233 and 48 homologs with ≥ 30% identity

Select sequences

Add sequences from UniProt, PDB, RefSeq, or MicrobesOnline (separate identifiers with commas or spaces):

Or download the sequences

Change minimum %identity:

Additional hits (identity < 30%)

CAN1_YEAST / P04817 Arginine permease CAN1; Canavanine resistance protein 1 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) (see 12 papers)
TC 2.A.3.10.4 / P04817 Arginine permease from Saccharomyces cerevisiae (Baker's yeast) (see 6 papers)
CAN1 / RF|NP_010851.1 arginine permease from Saccharomyces cerevisiae
    29% identity, 90% coverage of query (183 bits)

CAT1_SCHPO / Q9URZ4 Cationic amino acid transporter 1 from Schizosaccharomyces pombe (strain 972 / ATCC 24843) (Fission yeast) (see paper)
    29% identity, 90% coverage of query (170 bits)

GAP1_YEAST / P19145 General amino-acid permease GAP1 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) (see 19 papers)
TC 2.A.3.10.2 / P19145 General amino acid permease (all L-amino acids and some D-amino acids as well as β-alanine, polyamines and GABA) from Saccharomyces cerevisiae (Baker's yeast) (see 8 papers)
GAP1 / RF|NP_012965.1 general amino-acid permease GAP1 from Saccharomyces cerevisiae
    30% identity, 85% coverage of query (167 bits)

GNP1_YEAST / P48813 High-affinity glutamine permease from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) (see 5 papers)
TC 2.A.3.10.5 / P48813 High affinity glutamine permease from Saccharomyces cerevisiae (Baker's yeast) (see 12 papers)
GNP1 / GI|927778 high-affinity glutamine permease from Saccharomyces cerevisiae
    26% identity, 85% coverage of query (149 bits)

SSY1_YEAST / Q03770 SPS-sensor component SSY1; Amino-acid permease homolog SSY1 from Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast) (see 9 papers)
TC 2.A.3.10.12 / Q03770 Leucine sensor/transcription factor. Mutants hyper- and hyposensitive to inducer (Poulsen et al., 2008) suggest a sensor mechanism involving outward and inward facing conformations from Saccharomyces cerevisiae (Baker's yeast) (see 12 papers)
SSY1 / RF|NP_010444.1 amino-acid permease SSY1 from Saccharomyces cerevisiae (see paper)
    24% identity, 87% coverage of query (94.0 bits)

3l1lA Structure of arg-bound escherichia coli adic
    23% identity, 80% coverage of query (71.2 bits)

YjdD / b4115 arginine:agmatine antiporter from Escherichia coli K-12 substr. MG1655 (see 3 papers)
adiC / P60061 arginine:agmatine antiporter from Escherichia coli (strain K12) (see 2 papers)
ADIC_ECOLI / P60061 Arginine/agmatine antiporter from Escherichia coli (strain K12) (see 6 papers)
ADIC_ECO57 / P60063 Arginine/agmatine antiporter from Escherichia coli O157:H7 (see 3 papers)
TC 2.A.3.2.5 / P60061 Homodimeric electrogenic arginine (Km=80μM):agmatine antiporter, AdiC, involved in extreme acid resistance (Fang et al., 2007; Gong et al., 2003; Iyer et al., 2003). A projection structure at 6.5 Å resolution has been published (Casagrande et al., 2008), and the 3.2 Å resolution X-ray structure was determined by Fang et al., 2009 and Gao et al., 2009 from Escherichia coli (see 6 papers)
adiC / GB|AAN45533.1 arginine/agmatine antiporter from Shigella flexneri (see 6 papers)
    24% identity, 80% coverage of query (71.2 bits)

5j4nA / P60061 Crystal structure of the l-arginine/agmatine antiporter adic in complex with agmatine at 2.6 angstroem resolution (see paper)
    24% identity, 80% coverage of query (70.9 bits)

CTR1_HUMAN / P30825 High affinity cationic amino acid transporter 1; CAT-1; CAT1; Ecotropic retroviral leukemia receptor homolog; Ecotropic retrovirus receptor homolog; Solute carrier family 7 member 1; System Y+ basic amino acid transporter from Homo sapiens (Human) (see 4 papers)
TC 2.A.3.3.9 / P30825 High affinity cationic amino acid transporter 1 (CAT-1) (CAT1) (Ecotropic retroviral leukemia receptor homologue) (Ecotropic retrovirus receptor homologue) (ERR) (Solute carrier family 7 member 1) (System Y+ basic amino acid transporter) from Homo sapiens (see 6 papers)
    22% identity, 70% coverage of query (63.2 bits)

SLC7A8 / Q9UHI5 large neutral amino acids transporter small subunit 2 from Homo sapiens (see 4 papers)
LAT2_HUMAN / Q9UHI5 Large neutral amino acids transporter small subunit 2; L-type amino acid transporter 2; hLAT2; Solute carrier family 7 member 8 from Homo sapiens (Human) (see 14 papers)
TC 2.A.3.8.20 / Q9UHI5 Large neutral amino acids transporter small subunit 2 (L-type amino acid transporter 2) (hLAT2) (Solute carrier family 7 member 8). Certain detergents stabilize and allow purification of the 4F2hc-LAT2 complex, allowing the measurement of substrate binding. In addition, an improved 3D map could be obtained from Homo sapiens (see 12 papers)
    25% identity, 80% coverage of query (60.5 bits)

7cmiB The lat2-4f2hc complex in complex with leucine
    25% identity, 80% coverage of query (59.3 bits)

7cmhB / Q9UHI5 The lat2-4f2hc complex in complex with tryptophan (see paper)
    25% identity, 80% coverage of query (59.3 bits)

7b00A Human lat2-4f2hc complex in the apo-state
    25% identity, 80% coverage of query (59.3 bits)

LAT2_MOUSE / Q9QXW9 Large neutral amino acids transporter small subunit 2; L-type amino acid transporter 2; mLAT2; Solute carrier family 7 member 8 from Mus musculus (Mouse) (see 6 papers)
    26% identity, 80% coverage of query (58.5 bits)

STET_BACSU / O34739 Serine/threonine exchanger SteT from Bacillus subtilis (strain 168) (see paper)
TC 2.A.3.8.12 / O34739 The Ser/Thr exchange transporter (SteT) (also transports aromatic amino acids with lower efficiency) (Reig et al., 2007). The substrate-bound state of SteT shows increased conformational flexibility and kinetic stability, enabling transport of substrate across the cell membrane (Bippes et al. 2009). TMS8 sculpts the substrate-binding site and undergoes conformational changes during the transport cycle of SteT (Bartoccioni et al., 2010). Mutations allow substrate binding but not translocation. Other mutations stabilize the protein and result in higher production levels from Bacillus subtilis (see 2 papers)
    23% identity, 89% coverage of query (58.2 bits)

RMV1_ARATH / Q9FFL1 Polyamine transporter RMV1; Protein RESISTANT TO METHYL VIOLOGEN 1 from Arabidopsis thaliana (Mouse-ear cress) (see paper)
TC 2.A.3.12.3 / Q9FFL1 Plasma membrane polyamine/paraquot uptake transporter of 490 aas, RMV1. Also called PUT3 and LAT1. Mutations give rise to partial paraquot (a toxic common herbicide that generates superoxide and reactive oxygen species (ROS)) from Arabidopsis thaliana
    23% identity, 83% coverage of query (53.1 bits)

BAT1_HUMAN / P82251 b(0,+)-type amino acid transporter 1; b(0,+)AT1; Glycoprotein-associated amino acid transporter b0,+AT1; Solute carrier family 7 member 9 from Homo sapiens (Human) (see 16 papers)
TC 2.A.3.8.19 / P82251 B(0,+)-type amino acid transporter 1 (B(0,+)AT) (Glycoprotein-associated amino acid transporter b0,+AT1) (Solute carrier family 7 member 9) from Homo sapiens (see 9 papers)
    22% identity, 86% coverage of query (49.3 bits)

GadC / b1492 L-glutamate:4-aminobutyrate antiporter from Escherichia coli K-12 substr. MG1655 (see 5 papers)
gadC / P63235 L-glutamate:4-aminobutyrate antiporter from Escherichia coli (strain K12) (see 14 papers)
GADC_ECOLI / P63235 Glutamate/gamma-aminobutyrate antiporter; Glu/GABA antiporter; Extreme acid sensitivity protein from Escherichia coli (strain K12) (see 12 papers)
GADC_SHIFL / P63236 Glutamate/gamma-aminobutyrate antiporter; Glu/GABA antiporter from Shigella flexneri (see paper)
TC 2.A.3.7.3 / C8U8G2 Glutamate:GABA antiporter, GadC (YcaM). GadC, transports GABA/Glu only under acidic conditions, with no detectable activity at pH  values higher than 6.5 (Ma et al., 2012). Ma et al. (2012) determined the crystal structure of GadC at 3.1 Å resolution under basic conditions. GadC, comprising 12 TMSs, exists in a closed state, with its carboxy-terminal domain serving as a plug to block an otherwise inward-open conformation. Structural and biochemical analyses revealed the essential transport residues, identified the transport path and suggested a transport mechanism involving the rigid-body rotation of a helical bundle for GadC and other amino acid antiporters from Escherichia coli O103:H2 (strain 12009 / EHEC) (see paper)
gadC extreme acid sensitivity protein XasA from Escherichia coli K12 (see 12 papers)
    20% identity, 79% coverage of query (43.9 bits)

Or start over

by Morgan Price, Arkin group
Lawrence Berkeley National Laboratory