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Edman Sequencing Research Group (ESRG)
| Current Members | Studies | Activities | Electronic Posters | Publications | Membership History |

Mission of the Edman Sequencing Research Group:
The Edman sequencing research group (ESRG) was created by the Executive Board (EB) to assist ABRF members in evaluating their capabilities to analyze the N-terminus of proteins/peptides using Edman Sequencing chemistry in order to establish realistic expectations for this technology.

ESRG Guidelines:
The ESRG has the responsibility to design and distribute yearly samples to the ABRF membership following a reasonable timeline decided mutually by the ESRG and the EB. This includes sample design (EB approval required), sample preparation, test evaluation by ESRG members, sample distribution, data receipt and evaluation, oral and/or poster presentation at the ABRF or other international meeting (e.g., Protein Society or ASBMB), and finally, publication in a peer reviewed journal such as the Journal of Biomolecular Techniques (JBT) or BioTechniques. The study should be designed for but not limited to Edman sequence analysis of peptides and proteins containing the 20 common amino acids plus (optionally) other post-translationally modified amino acids that are commonly found in proteins. Use of other techniques that complement Edman sequence analysis (e.g., MALDI analysis of a peptide sample) should be encouraged if the member lab has those capabilities and believes these techniques will help in analysis of the sample. The ESRG should be comprised of 6-8 members plus one EB Liaison whose purpose is to assist the research group and to facilitate communication with the EB. The ESRG should meet about once a month via a conference call to discuss the current sample and ensure continued progress. Once a year one of the members should be made chair in a fashion determined by the ESRG. The chair has the ultimate responsibility for ensuring the success of the RG and its studies, from initial design to the final publication. This includes communication with the EB, management office, JBT or other journal, chairs of the other protein research groups, ABRF membership, and the yearly ABRF meeting organizers. Every year, 2-3 members rotate off the RG and are replaced by new members who are nominated by the ESRG for approval by the EB. The ESRG should have a 3-5 year plan in mind when it designs its studies. The ESRG should use this as a guideline but is not limited to it, either in order presented or type of sample. To help ensure that the ESRG meets the continuing needs of ABRF members, each sample submission form would contain a few survey questions to better gauge the kinds of samples that would be most useful to our members and to solicit suggestions for future studies.
Current Membership
Peter Hunziker (Chair) - University of Zurich
Brian Hampton - Universtiy of Maryland School of Medicine
Dr. Kerry Maddox - Shriners Hosp for Children
Wendy Sandoval - Genentech, Inc.
John S. Smith - Univ of Texas Med Branch
Richard S Thoma - Monsanto
Dr Nancy D Denslow (EB liaison) - Univ of Florida-Gainesville
Studies
1) ESRG 2009 Study: Comparing Edman and Mass Spectrometry Techniques for N-terminal Sequencing
    - ESRG 2009 Study Announcement
    - Cover Letter/Sample Instructions (15K)
    - Vendor ABRF Study Participation Guidelines (18K)
    - Data Sheet - Excel file for both Edman and MS Data
2) ESRG 2008 Study "Investigation into homopolymeric amino acid N-terminal sequence tags and their effects on automated Edman degradation"
    - ESRG 2008 Study Announcement
    - Cover Letter/Sample Instructions
    - Data Sheet (41K)
    - Vendor ABRF Study Participation Guidelines (18K)
3) ESRG 2007 Study "Procedures used to Determine the N-Terminal Sequence of a Blocked Protein"
    - ESRG 2007 Study Announcement
    - Cover Letter/Sample Instructions
    - Deblocking Cycle
    - Data Sheet (25K)
4) ESRG 2006 Study "Edman Sequencing as a Method for Polypeptide Quantitation"
    - ESRG 2006 Study Announcement
5) ESRG 2005 Study "Identification of Modified Amino Acids by Edman Sequencing"
    - Instructions for Filling Out the Datasheet
    - Sample Description Including Modified Amino Acids
    - Data Sheet (19K)
6) ESRG 2004 Study "Modified Amino Acids in Edman Sequencing"
    - Sample Description Including Modified Amino Acids
7) ESRG 2004 Study Aid: Pages 10-12 from "Identification of Modified PTH-Amino Acids in Protein Sequence Analysis" 1st ed. compiled by Mark Crankshaw and Greg Grant
    - Chromatogram: page 10
    - Legend to chromatogram: page 11
    - Legend continued: page 12
Activities
1) ESRG Newsletter Vol.1 No.1, - Report on the ESRG at ABRF 2008, Salt Lake City, Utah and a Tribute to Pehr Edman
    - View Newsletter
Electronic Posters
1) ESRG 2008 Poster. "Investigation into Homopolymeric Amino Acid N-terminal Sequence Tags and their Effects on Automated Edman Degradation "
    - View Document (59K)
2) ESRG 2008 Oral Presentation. "Effects of a Homopolymeric Amino Acid Tag on Edman Degradation"
    - View Document (316K)
3) ESRG 2007 Poster: "Procedures used to Determine the N-Terminal Sequence of a Blocked Protein"
    - View Document (1,896K)
4) ESRG 2007 Oral Presentation: "Procedures used to Determine the N-Terminal Sequence of a Blocked Protein"
    - View Document (3,121K)
5) ESRG 2006 poster: "Edman Sequencing as a Method for Polypeptide Quantitation"
    - View Document (462K)
6) ESRG 2006: Oral presentation: Edman Sequencing as a Method for Polypeptide Quantitation
    - View Document (4,350K)
7) ESRG 2005 "State of Edman Sequencing" Survey, used for both the poster and oral presentation at the ABRF meeting, Savannah, GA, February 5-8, 2005
    - View Document (567K)
8) ESRG 2005 poster "Identification of Modified Amino Acids by Edman Sequencing"
    - View Document (1,774K)
9) ESRG 2005: Oral presentation: Modified amino acids by Edman sequencing
    - View Document (353K)
10) "ABRF ESRG 2004 Study: Modified Amino Acids in Edman Sequencing"; ESRG study poster presented at the 2004 ABRF meeting February 28-March 2 in Portland, Oregon.
    - View Poster
11) "Modified Amino Acids in Edman Sequencing"; ESRG study results presented at the 2004 ABRF meeting February 28-March 2 in Portland, Oregon.
    - View Document (371K)
12) "ABRF-ESRG 2003: Analysis of a PVDF-Bound Known Protein with a Homogeneous Amino-Terminus" ; ESRG study poster presented at the 2003 ABRF meeting February 10-13 in Denver, Colorado.
    - View poster
13) Slides from tutorial, "Making the Most of Your Edman Sequence Data; A Primer on Data Calling, Analysis, Interpretation and Reporting" in pdf format, presented at the 2003 ABRF meeting February 10-13 in Denver, Colorado.
    - View slides
14) Slides from the 2003 ESRG Study oral presentation given at the 2003 ABRF meeting, Feb 10-13 in Denver, Colorado.
    - View presentation
15) "ABRF-2002 ESRG, a Difficult Sequence: Analysis of a PVDF-Bound Known Protein With a Heterogeneous Amino-Terminus"; poster presented at the 2002 ABRF meeting March 10-12 in Austin, Texas.
    - View Poster (28K)
16) Slides from ESRG 2002 Study oral presentation given at 2002 ABRF meeting March 10-12 in Austin, Texas
    - View Presentation (209K)
17) The first half of the tutorial session "N-terminal Edman sequencing sample preparation" slides in pdf format.
    - View Presentation (849K)
18) Second half of the tutorial session "N-terminal Edman sequencing sample preparation" slides in pdf format.
    - View Presentation (194K)
19) Here is the method briefs handout from the tutorial session. Please use these methods and references only as guides for you to develop similar methods more fully in your own labs, no liability to ABRF for their use.
    - View Document (39K)
Publications
1) Brune, D., N.D. Denslow, R. Kobayashi, W.S. Lane, J.W. Leone, B.J. Madden, J.M. Neveu, and J. Pohl, ABRF ESRG 2005 Study: identification of seven modified amino acids by Edman sequencing. J Biomol Tech, 2006. 17(5): p. 308-326.
    - Link to Full Text
2) D. Brune, J.M. Crawford, R.G. Cook, N.D. Denslow, R. Kobayashi, B.J. Madden, J. M. Neveu, and L. Steinke, Edman Sequencing Research Group 2004 Study: Modified Amino Acids in Edman Sequencing, J. Biomol. Tech., Sep 2005; 16: 272 - 284.
    - Link to Full Text
3) Buckel, S.D., Cook,R.G., Crawford,M.J., Denslow, N., Madden,B.J., Steinke, L., Fernandez, J., Neveu,J.M; ABRF-2003 ESRG: Analysis of a PVDF-Bound KNown Protein With a Heterogeneous Amino-Terminus Journal of Biomolecular Techniques 14:278-288 (2003).
    - Link to Full Text
4) Buckel, S.D., Cook,R.G., Crawford, J.M., Dupont, D.R., Madden,B.J., Neveu,J.M., Steinke, L., Fernandez, J.,; ABRF-2002 ESRG, A Difficult Sequence: Analysis of a PVDF-Bound KNown Protein With a Heterogeneous Amino-Terminus Journal of Biomolecular Techniques 13:246-257 (2002).
    - Link to Abstract
5) WJ Henzel, A Admon, SA Carr, G Davis, K De Jongh, W Lane, M Rohde, and L Steinke ABRF-98SEQ: Evaluation of peptide sequencing at high sensitivity J. Biomol. Tech., Jun 2000; 11: 92 - 99.
    - Link to Abstract
6) Stone, K., Fernandez, J., Admon, A., Henzel, W., Lane, W., Rohde, M., and Steinke, L. ABRF-97SEQ: Sequencing Results of a Low-Level Sample. J Biomol Tech, 10:26-32 (1999)
7) Fernandez, J., Admon, A., DeJongh, K., Grant, G., Henzel, W., Lane, W. S., Stone, K. L. and Merrill, B. Evaluation of ABRF-96SEQ: A Sequence Assignment Exercise. In (D. R. Marshak, ed.) Techniques in Protein Chemistry VIII, Academic Press, San Diego, pp 69-78 (1997)
8) DeJongh, K. S., Fernandez, J., Gambee, J. E., Grant, G. A., Merrill, B., Stone, K. L. and Rush, J. Design and Analysis of ABRF-95SEQ, a Recombinant Protein with Sequence Heterogeneity. In (D. Marshak, ed.) Techniques in Protein Chemistry VII, Academic Press, San Diego, pp 347-358 (1996)
9) Gambee, J. E., Andrews, P. C., Grant, G. A., Merrill, B., Mische, S. M. and Rush, J. Assignment of Cysteine and Tryptophan Residues during Protein Sequencing: Results of ABRF-94SEQ. In (J. W. Crabb, ed.) Techniques in Protein Chemistry VI, Academic Press, San Diego, pp 209-217 (1995)
10) Rush, J., Andrews, P. C., Crimmins, D. L., Gambee, J. E., Grant, G. A., Mische, S. M. and Speicher, D. W. A Synthetic Peptide for Evaluating Protein Sequencing Capabilities: Design of ABRF-93SEQ and Results. In (J.W. Crabb, ed.) Techniques in Protein Chemistry V, Academic Press, San Diego, pp133-141 (1994)
11) Mische, S. M., Yuksel, K. U., Mende-Muller, L. M., Matsudaira, P., Crimmins, D. L. and Andrews, P. C. Protein Sequencing of Post-translationally Modified Peptides and Proteins: Design, Characterization and Results of ABRF-92SEQ. In (R. H. Angeletti, ed.) Techniques in Protein Chemistry IV, Academic Press, San Diego, pp 453-461 (1993)
12) Crimmins, D. L., Grant, G. A., Mende-Muller, L. M., Niece, R. L., Slaughter, C., Speicher, D. W. and Yuksel, K. U. Evaluation of Protein Sequencing Core Facilities: Design, Characterization, and Results form a Test Sample (ABRF-91SEQ). In (R. H. Angeletti, ed.) Techniques in Protein Chemistry III, Academic Press, San Diego, pp 35-35 (1992)
13) Yuksel, K. U., Grant, G. A., Mende-Muller, L. M., Niece, R. L., Williams, K. R. and Speicher, D. W. Protein Sequencing from Polyvinylidene Difluoride Membranes: Design and Characterization of a Test Sample (ABRF-90SEQ) and Evaluation of Results. In (J. J. Villafranca, ed.) Techniques in Protein Chemistry II, Academic Press, San Diego, pp 151-162 (1991)
14) Speicher, D. W., Grant, G. A., Niece, R. L., Blacher, R. W., Fowler A. V. and Williams, K. R. Design, Characterization and Results of ABRF-89SEQ: A Test Sample for Evaluating Protein Sequencer Performance in Protein Microchemistry Core Facilities. In (T. E. Hugli, ed.) Current Research in Protein Chemistry, Academic Press, San Diego, pp 159-166 (1990)
Membership History
Member Name Organization Details
Daniel Brune Arizona State Univ  Chair: 02/05 - 02/06
Member: 02/06 - 04/07
Scott Buckel Amgen, Inc.  Member: 01/01 - 03/03
Richard G. Cook Baylor Col of Med  Member: 01/01 - 03/04
J. M. Crawford Yale Univ. Keck Biotech Res. Lab.  Member: 01/01 - 03/04
Dr Nancy D Denslow Univ of Florida-Gainesville  Chair: 03/04 - 02/05
Member: 03/02 - 03/04
David R. Dupont Applied Biosystems  Member: 01/01 - 03/02
Joseph Fernandez Rockefeller Univ  Chair: 01/01 - 03/02
Member: 03/02 - 03/03
Brian Hampton Universtiy of Maryland School of Medicine  Chair: 04/07 - 02/08
Member: 02/05 - 04/07
Peter Hunziker University of Zurich  Member: 03/06 - 02/08
Ryuji Kobayashi UT MD Anderson Cancer Center  Member: 03/03 - 03/06
William S. Lane Harvard University  EB Liason: 10/03 - 02/05
Joseph W. Leone Pfizer  Chair: 02/06 - 04/07
Memberchair-emeritus: 04/07 - 02/08
Member: 03/04 - 02/06
Joseph F. Leykam Michigan State University  Member: 04/07 - 08/07
Dr. Klaus Linse Univ of Texas at Austin  Member: 02/05 - 02/08
Benjamin J Madden Mayo Clinic  Chair: 02/03 - 03/04
Member: 03/04 - 02/05
Member: 01/01 - 02/03
John M Neveu Harvard University  Chair: 04/02 - 01/03
Member: 02/03 - 02/05
Member: 01/01 - 03/02
Dr. Ronald L. Niece Research Resources & Technologies  Member: 03/88 - 03/91
Dr Jan Pohl Emory Univ Sch of Med  Member: 03/04 - 04/07
Laurey Steinke University of Nebraska Medical Center  EB liason: 01/01 - 09/03
Richard S Thoma Monsanto  Chair: 04/07 - 02/08
Member: 02/05 - 04/07
Ken R. Williams Yale Univ, Keck Lab  Member: 03/88 - 03/90