Purification, sequencing, and phylogenetic analyses of novel Lys-49 phospholipases A2 from the venoms of rattlesnakes and other pit vipers

I. H. Tsai, Y. H. Chen, Y. M. Wang, Ming-Chung Tu, A. T. Tu

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Basic phospholipase A2 homologs with Lys49 substitution at the essential Ca2+-binding site are present in the venom of pit vipers under many genera. However, they have not been found in rattlesnake venoms before. We have now screened for this protein in the venom of rattlesnakes and other less studied pit vipers. By gel filtration chromatography and RP-HPLC, Lys49-phospholipase-like proteins were purified from the venoms of two rattlers, Crotalus atrox and Crotalus m. molossus, and five nonrattlers, Porthidium nummifer, Porthidium godmani, Bothriechis schlegelii, Trimeresurus puniceus, and Trimeresurus albolabris. Their N-terminal amino acid sequences were shown to be characteristic for this phospholipase subfamily. The purified basic proteins from rattlesnakes caused myonecrosis and edema in experimental animals. We have also cloned the cDNAs and solved the complete sequences of four novel Lys49-phospholipases from the venom glands of C. atrox, P. godmani, B. schlegelii, and Deinagkistrodon acutus (hundred-pace). Phylogenetic analyses based on the amino acid sequences of 28 Lys49-phospholipases separate the pitviper of the New World from those of the Old World, and the arboreal Asiatic species from the terrestrial Asiatic species. The implications of the phylogeny tree to the systematics of pit vipers, and structure-function relationship of the Lys49-phospholipases are discussed.

Original languageEnglish
Pages (from-to)236-244
Number of pages9
JournalArchives of Biochemistry and Biophysics
Volume394
Issue number2
DOIs
Publication statusPublished - 2001 Oct 15

Fingerprint

Crotalid Venoms
Phospholipases
Phospholipases A2
Purification
Crotalus
Trimeresurus
Venoms
Amino Acid Sequence
Amino Acids
Proteins
Phylogeny
Chromatography
Gel Chromatography
Edema
Animals
Substitution reactions
Complementary DNA
Gels
Binding Sites
High Pressure Liquid Chromatography

Keywords

  • Complete sequence
  • Phospholipase A
  • Phylogenetic analysis
  • Pitviper venom

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology

Cite this

Purification, sequencing, and phylogenetic analyses of novel Lys-49 phospholipases A2 from the venoms of rattlesnakes and other pit vipers. / Tsai, I. H.; Chen, Y. H.; Wang, Y. M.; Tu, Ming-Chung; Tu, A. T.

In: Archives of Biochemistry and Biophysics, Vol. 394, No. 2, 15.10.2001, p. 236-244.

Research output: Contribution to journalArticle

@article{19443de3ec07401e952b12deb6a688e8,
title = "Purification, sequencing, and phylogenetic analyses of novel Lys-49 phospholipases A2 from the venoms of rattlesnakes and other pit vipers",
abstract = "Basic phospholipase A2 homologs with Lys49 substitution at the essential Ca2+-binding site are present in the venom of pit vipers under many genera. However, they have not been found in rattlesnake venoms before. We have now screened for this protein in the venom of rattlesnakes and other less studied pit vipers. By gel filtration chromatography and RP-HPLC, Lys49-phospholipase-like proteins were purified from the venoms of two rattlers, Crotalus atrox and Crotalus m. molossus, and five nonrattlers, Porthidium nummifer, Porthidium godmani, Bothriechis schlegelii, Trimeresurus puniceus, and Trimeresurus albolabris. Their N-terminal amino acid sequences were shown to be characteristic for this phospholipase subfamily. The purified basic proteins from rattlesnakes caused myonecrosis and edema in experimental animals. We have also cloned the cDNAs and solved the complete sequences of four novel Lys49-phospholipases from the venom glands of C. atrox, P. godmani, B. schlegelii, and Deinagkistrodon acutus (hundred-pace). Phylogenetic analyses based on the amino acid sequences of 28 Lys49-phospholipases separate the pitviper of the New World from those of the Old World, and the arboreal Asiatic species from the terrestrial Asiatic species. The implications of the phylogeny tree to the systematics of pit vipers, and structure-function relationship of the Lys49-phospholipases are discussed.",
keywords = "Complete sequence, Phospholipase A, Phylogenetic analysis, Pitviper venom",
author = "Tsai, {I. H.} and Chen, {Y. H.} and Wang, {Y. M.} and Ming-Chung Tu and Tu, {A. T.}",
year = "2001",
month = "10",
day = "15",
doi = "10.1006/abbi.2001.2524",
language = "English",
volume = "394",
pages = "236--244",
journal = "Archives of Biochemistry and Biophysics",
issn = "0003-9861",
publisher = "Academic Press Inc.",
number = "2",

}

TY - JOUR

T1 - Purification, sequencing, and phylogenetic analyses of novel Lys-49 phospholipases A2 from the venoms of rattlesnakes and other pit vipers

AU - Tsai, I. H.

AU - Chen, Y. H.

AU - Wang, Y. M.

AU - Tu, Ming-Chung

AU - Tu, A. T.

PY - 2001/10/15

Y1 - 2001/10/15

N2 - Basic phospholipase A2 homologs with Lys49 substitution at the essential Ca2+-binding site are present in the venom of pit vipers under many genera. However, they have not been found in rattlesnake venoms before. We have now screened for this protein in the venom of rattlesnakes and other less studied pit vipers. By gel filtration chromatography and RP-HPLC, Lys49-phospholipase-like proteins were purified from the venoms of two rattlers, Crotalus atrox and Crotalus m. molossus, and five nonrattlers, Porthidium nummifer, Porthidium godmani, Bothriechis schlegelii, Trimeresurus puniceus, and Trimeresurus albolabris. Their N-terminal amino acid sequences were shown to be characteristic for this phospholipase subfamily. The purified basic proteins from rattlesnakes caused myonecrosis and edema in experimental animals. We have also cloned the cDNAs and solved the complete sequences of four novel Lys49-phospholipases from the venom glands of C. atrox, P. godmani, B. schlegelii, and Deinagkistrodon acutus (hundred-pace). Phylogenetic analyses based on the amino acid sequences of 28 Lys49-phospholipases separate the pitviper of the New World from those of the Old World, and the arboreal Asiatic species from the terrestrial Asiatic species. The implications of the phylogeny tree to the systematics of pit vipers, and structure-function relationship of the Lys49-phospholipases are discussed.

AB - Basic phospholipase A2 homologs with Lys49 substitution at the essential Ca2+-binding site are present in the venom of pit vipers under many genera. However, they have not been found in rattlesnake venoms before. We have now screened for this protein in the venom of rattlesnakes and other less studied pit vipers. By gel filtration chromatography and RP-HPLC, Lys49-phospholipase-like proteins were purified from the venoms of two rattlers, Crotalus atrox and Crotalus m. molossus, and five nonrattlers, Porthidium nummifer, Porthidium godmani, Bothriechis schlegelii, Trimeresurus puniceus, and Trimeresurus albolabris. Their N-terminal amino acid sequences were shown to be characteristic for this phospholipase subfamily. The purified basic proteins from rattlesnakes caused myonecrosis and edema in experimental animals. We have also cloned the cDNAs and solved the complete sequences of four novel Lys49-phospholipases from the venom glands of C. atrox, P. godmani, B. schlegelii, and Deinagkistrodon acutus (hundred-pace). Phylogenetic analyses based on the amino acid sequences of 28 Lys49-phospholipases separate the pitviper of the New World from those of the Old World, and the arboreal Asiatic species from the terrestrial Asiatic species. The implications of the phylogeny tree to the systematics of pit vipers, and structure-function relationship of the Lys49-phospholipases are discussed.

KW - Complete sequence

KW - Phospholipase A

KW - Phylogenetic analysis

KW - Pitviper venom

UR - http://www.scopus.com/inward/record.url?scp=0035886722&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035886722&partnerID=8YFLogxK

U2 - 10.1006/abbi.2001.2524

DO - 10.1006/abbi.2001.2524

M3 - Article

C2 - 11594738

AN - SCOPUS:0035886722

VL - 394

SP - 236

EP - 244

JO - Archives of Biochemistry and Biophysics

JF - Archives of Biochemistry and Biophysics

SN - 0003-9861

IS - 2

ER -