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VF category: Gram- non-hemophore-dependent (total 59 related VFs in database, current show from 1 to 10)
 
VF Bacteria Brief description
Chu
(E. coli heme uptake)
Escherichia
(E. coli CFT073)
chuA encodes for a 69-kDa outer membrane protein responsible for heme uptake. The chuA nucleotide sequence shows high homology to shuA gene of S. dysenteriae type 1. The gene is part of a larger locus, termed the heme transport locus, which appears to be widely distributed among pathogenic E. coli strains. ...
Shu
Shigella
(S. dysenteriae Sd197)
Heme utilization genes have been identified in numerous pathogens, including E. coli O157:H7, Yersinia pestis, Yersinia enterocolitica, Vibrio cholerae, Haemophilus influenzae, Neisseria meningitidis, etc. Two heme-uptake systems:. (1) direct binding of heme or heme-containing proteins to specific outer membrane receptors. (2) secretion of hemophores to interact with the hemoproteins and present it to specific receptors. ...
Hgp
(Hemoglobin-binding protein)
Haemophilus
(H. influenzae Rd KW20)
H. influenzae has an absolute requirement for exogenously supplied heme for aerobic growth. Most of the pathway converting δ-aminolevulinic acid to heme is lost. So H. influenzae has derived several mechanism to use host heme-hemopexin, hemoglobin-haptoglobin as sources of heme iron for growth. Three hemoglobin- and hemoglobin-haptoglobin binding protein genes, hgpA, hgpB, and hgpC, contain lengths of tetrameric CCAA repeats. ...
HhuA
(Hemoglobin:haptoglobin complexes binding protein)
Haemophilus
(H. influenzae TN106)
Similar to HgpA, mediates binding of both hemoglobin:haptoglobin complexes and free hemoglobin. ...
HmbR
Neisseria
(N. meningitidis MC58)
The gene encoding the hemoglobin receptor, hmbR, is located downstream of a gene involved in the catabolism of heme, hemO. Expression of HmbR undergoes phase variation due to slip-strand mispairing of poly(G) tracts within the hmbR gene. The advantage associated with phase-varying surface proteins is evasion of the host immune response. ...
HpuAB
Neisseria
(N. meningitidis Z2491)
Expression of HpuAB undergoes phase variation due to slip-strand mispairing of poly(G) tracts within the hpuA gene. ...
Heme receptor HutA
Vibrio
(V. cholerae O1 biovar El Tor str. N16961)
Heme receptors. ...
Heme receptor HutR
Vibrio
(V. cholerae O1 biovar El Tor str. N16961)
Heme receptors. ...
Hgp
(Hemoglobin-binding protein)
Haemophilus
(H. ducreyi 35000HP)
H. influenzae has an absolute requirement for exogenously supplied heme for aerobic growth. Most of the pathway converting δ-aminolevulinic acid to heme is lost. So H. influenzae has derived several mechanism to use host heme-hemopexin, hemoglobin-haptoglobin as sources of heme iron for growth. Three hemoglobin- and hemoglobin-haptoglobin binding protein genes, hgpA, hgpB, and hgpC, contain lengths of tetrameric CCAA repeats. ...
Hgp
(Hemoglobin-binding protein)
Haemophilus
(H. influenzae 86-028NP)
H. influenzae has an absolute requirement for exogenously supplied heme for aerobic growth. Most of the pathway converting δ-aminolevulinic acid to heme is lost. So H. influenzae has derived several mechanism to use host heme-hemopexin, hemoglobin-haptoglobin as sources of heme iron for growth. Three hemoglobin- and hemoglobin-haptoglobin binding protein genes, hgpA, hgpB, and hgpC, contain lengths of tetrameric CCAA repeats. ...
   


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