Initial Public Offering (IPO): Pre-Effective Amendment to Registration Statement (General Form) — Form S-1 Filing Table of Contents
Document/ExhibitDescriptionPagesSize
1: S-1/A Pre-Effective Amendment to Registration Statement HTML 1.12M
(General Form)
16: CORRESP ¶ Comment-Response or Other Letter to the SEC HTML 46K
2: EX-1.1 Underwriting Agreement HTML 178K
3: EX-3.1 Articles of Incorporation/Organization or By-Laws HTML 107K
4: EX-3.2 Articles of Incorporation/Organization or By-Laws HTML 97K
5: EX-3.3 Articles of Incorporation/Organization or By-Laws HTML 35K
6: EX-4.1 Instrument Defining the Rights of Security Holders HTML 34K
7: EX-5.1 Opinion re: Legality HTML 12K
8: EX-10.14 Material Contract HTML 45K
9: EX-10.16 Exhbit 10.16 HTML 91K
10: EX-10.17 Material Contract HTML 58K
11: EX-10.18 Material Contract HTML 47K
12: EX-10.19 Material Contract HTML 60K
13: EX-10.20 Material Contract HTML 26K
14: EX-10.21 Material Contract HTML 150K
15: EX-23.1 Consent of Experts or Counsel HTML 9K
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Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the use in this Amendment No. 4 to the Registration Statement on Form S-1 (No. 333-140973) of our report
dated February 28, 2007, except for Note 15, as to which the date is May 7, 2007, relating to the consolidated financial statements of Helicos BioSciences Corporation, which
appears in such Registration Statement. We also consent to the reference to us under the headings "Experts" in such Registration Statement.
/s/
PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Boston, Massachusetts May 7, 2007
