|
Source of XI
|
Activity (U/mg protein)
|
Aerobic growth rate on xylose (hour-1)
|
Source
|
Identity with xym1 XI
|
Identity with xym2 XI
|
Identity with Piromyces XI
|
|---|
|
Metagenome xym1b
|
0.33 ± 0.05
|
0.02
|
This study
|
100%
|
67%
|
61%
|
|
Metagenome xym2b
|
0.20 ± 0.04
|
0.02
|
This study
|
67%
|
100%
|
63%
|
|
Piromyces sp.
b,c
|
0.35
|
0.07
|
This study
|
61%
|
63%
|
100%
|
|
Piromyces sp.
|
0.3 to 1.1
|
0.22
|
[18]
|
61%
|
63%
|
100%
|
|
Piromyces sp.c
|
0.5 to 0.8
|
0.02
|
[17]
|
61%
|
63%
|
100%
|
|
Piromyces sp.
c
|
0.0538
|
0.056
|
[16]
|
61%
|
63%
|
100%
|
|
Orpinomyces sp.
|
1.6
|
0.01
|
[15]
|
61%
|
61%
|
94%
|
|
Xanthomonas campestris
|
0.016
|
0.02
|
[44]
|
64%
|
63%
|
61%
|
|
Bacteroides thetaiotaomicron
|
0.14
|
n.m.
|
[45]
|
61%
|
64%
|
83%
|
|
Clostridium phytofermentans
c
|
0.0344
|
0.057
|
[16]
|
54%
|
52%
|
54%
|
|
Clostridium thermosulfurogenes
|
n.m.
|
n.d.
|
[46]
|
51%
|
49%
|
49%
|
|
Escherichia coli
|
n.m.
|
n.d.
|
[19]
|
50%
|
52%
|
48%
|
|
Bacillus subtilis
|
n.m.
|
n.m.
|
[47]
|
48%
|
48%
|
47%
|
|
Lactobacillus pentosus
|
n.d.
|
n.d.
|
[47]
|
48%
|
47%
|
46%
|
|
Thermus thermophilus
|
0.0007 to 0.012
|
n.m.
|
[48]
|
31%
|
30%
|
29%
|
- an.m., not measured; n.d., not detected. Sequence identity with xym1, xym2 and Piromyces XI gene is also given at the protein level. bGlucose-grown cells. cCodon-optimised gene.
