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Table 2 Allelic and amino acid difference in genes involved in apoptosis, iron acquisition, and LOS between Neisseriameningitidis serogroup W and Y isolates

From: Difference in virulence between Neisseria meningitidis serogroups W and Y in transgenic mice

Locus

Gene name

Gene product

Function

Allele Serogroup Y (frequency)

Allele Serogroup W (frequency)

Difference in amino acids between serogroups W and Y

Frequency of alleles in isolates in PubMLST

NEIS2020

porB

Porin, major outer membrane protein

Inflammatory response/ induction of apoptosis

67 (8/10)

244 (12/13)

142 aa

Y: 37%

W: 47%

NEIS0651

iga

IgA1 protease

Inflammatory response/ induction of apoptosis

189 (9/10)

37 (10/13)

72 aa

Y: 60%

W: 74%

NEIS0414

ponA

Penicillin-binding protein 1

Inflammatory response/ induction of apoptosis

45 (9/10)

1 (10/13)

2 aa

Y: 71%

W: 95%

NEIS1753

penA

Penicillin-binding protein 2

Inflammatory response/ induction of apoptosis

8 (10/10)

59 (11/13)

0 aa

Y: 70%

W: 74%

NEIS1468

lbpA

Lactoferrin binding protein A

Iron acquisition

226 (9/10)

8 (9/13)

33 aa

Y: 51%

W: 82%

NEIS1469

lbpB

Lactoferrin binding protein B

Iron acquisition

137 (9/10)

5 (7/13)

155 aa

Y: 52%

W: 49%

NEIS1690

tbpA

Transferrin binding protein A

Iron acquisition

1054 (3/10)

2 (11/13)

221 aa

Y: 3.8%

W: 89%

NEIS1691

tbpB

Transferrin binding protein B

Iron acquisition

1111 (3/10)

1 (12/13)

441 aa

Y: 1.4%

W: 81%

NEIS1946

hpuA

Haemoglobin-haptoglobin utilisation protein

Iron acquisition

110 (4/10)

776 (3/13) Absent (9/13)

70 aa

Y: 44%

W: 52% (Absent), 13% (776)

NEIS1947

hpuB

Haemoglobin-haptoglobin utilisation protein

Iron acquisition

35 (10/10)

1898 (9/13)

39 aa

Y: 67%

W: 32%

hmbR

hmbR

Haemoglobin receptor protein

Iron acquisition

Absent (10/10)

8 (6/13) 9 (6/13)

N/A

Y: 98%

W: 21% (8), 46% (9)

NEIS0304

mshA

Lipid A export ATP-binding/permease protein (IM)

LOS

118 (9/10)

89 (12/13)

2 aa

Y: 82%

W: 28%

NEIS0657

rlpB

 

LOS

3 (9/10)

1 (12/13)

0 aa

Y: 75%

W: 95%

NEIS1456

rfaF

Heptosyltransferase II

LOS

22 (10/10)

4 (13/13)

6 aa

Y: 77%

W: 71%

NEIS1618

lgtF

Beta-1,4 glucosyltransferase

LOS

57 (9/10)

43 (13/13)

2 aa

Y: 70%

W: 80%

NEIS1619

rfaK

Alpha-1,2 N-acetylglucosamine transferase

LOS

31 (10/10)

92 (12/13)

12 aa

Y: 77%

W: 52%

NEIS1812

yhbG

Lipopolysaccharide ABC transporter

LOS

107 (6/10)

1 (12/13)

12 aa

Y: 9.4%

W: 88%

NEIS1814

lptC

Lipopolysaccharide export system protein (OM)

LOS

2 (10/10)

1 (12/13)

3 aa

Y: 89%

W: 86%

NEIS1900

lgtE

Lacto-N-neotetraose biosynthesis glycosyl transferase

LOS

162;206 (6/10)

45;321 (13/13)

101 aa

Y: 40%

W: 52%

NEIS1901

lgtB

Lacto-N-neotetraose biosynthesis glycosyl transferase

LOS

81 (6/10)

79 (13/13)

10 aa

Y: 61%

W: 56%

NEIS1986

lpt3

LOS O-3 PEA transferase

LOS

38 (1/10) Absent (9/10)

4 (12/13)

13 aa

Y: 7.7% (38), 51% (Absent)

W: 80%

NEIS2012

lpt6

O-6 PEA LOS transferase

LOS

Absent (10/10)

3 (13/13)

N/A

Y: 96%

W: 84%

NEIS2134

rfaC

Heptosyltransferase I

LOS

3 (10/10)

1 (13/13)

17 aa

Y: 82%

W: 60%

  1. aa Amino acids
  2. N/A Not applicable
  3. LOS Lipooligosaccharide
  4. W Neisseria meningitidis Serogroup W
  5. Y Neisseria meningitidis Serogroup Y