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| PROSITE documentation PDOC00585 |
Orn/Lys/Arg decarboxylases family 1 pyridoxal-phosphate attachment site
Description:
Pyridoxal-dependent decarboxylases acting on ornithine, lysine, arginine and
related substrates can be classified into two different families on the basis
of sequence similarities [1,2]. The first family consists of:
- Prokaryotic ornithine decarboxylase (EC 4.1.1.17) (ODC). ODC catalyzes the
transformation of ornithine into putrescine.
- Prokaryotic lysine decarboxylase (EC 4.1.1.18) (LDC). LDC catalyzes the
transformation of lysine into cadaverine.
- Escherichia coli biodegradative arginine decarboxylase (EC 4.1.1.19) (ADC).
ADC catalyzes the transformation of arginine into agmatine.
- Bacillus subtilis hypothetical protein yaaO.
One of the regions of sequence similarity contains a conserved lysine residue
which is known, in Escherichia coli LDC [3] and in ADC [4], to be the site of
attachment of the pyridoxal-phosphate group. We have used this region as a
signature pattern.
These enzymes are collectively known as group III decarboxylases [2].
Last update:
November 1997 / Text revised.
Technical section:
PROSITE method (with tools and information) covered by this documentation:
| OKR_DC_1, PS00703; Orn/Lys/Arg decarboxylases family 1 pyridoxal-P attachment site (PATTERN) |
| Consensus pattern: |
[STAV]-x-S-x-H-K-x(2)-[GSTAN](2)-x-[STA]-Q-[STA](2)
K is the pyridoxal-P attachment site |
| Sequences known to belong to this class detected by the pattern: |
ALL, except for yaaO |
| Other sequence(s) detected in Swiss-Prot: |
NONE |
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| Matching PDB structures:
1C4K 1ORD [ALL] |
References:
| 1 |
Authors | Bairoch A. |
| Source | Unpublished observations (1993). |
| 2 |
Authors | Sandmeier E., Hale T.I., Christen P. |
| Source | Eur. J. Biochem. 221:997-1002(1994). |
| 3 |
Authors | Meng S.-Y., Bennett G.N. |
| Title | Nucleotide sequence of the Escherichia coli cad operon: a system for neutralization of low extracellular pH. |
| Source | J. Bacteriol. 174:2659-2669(1992). |
| PubMed ID | 1556085 |
| 4 |
Authors | Stim K.P., Bennett G.N. |
| Title | Nucleotide sequence of the adi gene, which encodes the biodegradative acid-induced arginine decarboxylase of Escherichia coli. |
| Source | J. Bacteriol. 175:1221-1234(1993). |
| PubMed ID | 8383109 |
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