FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * Sun Life Assurance CO of Canada   2. Issuer Name and Ticker or Trading Symbol TORTOISE MLP FUND, INC. [NTG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director __X__ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 150 KING STREET WEST,  3. Date of Earliest Transaction (Month/Day/Year) 10/07/2010 (Street) TORONTO, A6 M5H 1J9 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) ___ Form filed by One Reporting Person _X_ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price 2.48% Senior Notes Series A due Dec. 15, 2013 10/28/2010   P   3,333,000 A $ 3,333,000 $ 10,000,000 D   4.29% Senior Notes Series D due Dec. 15, 2020 10/28/2010   P   4,333,642 A $ 4,333,642 $ 13,000,000 D   4.29% Senior Notes Series D due Dec. 15, 2020 10/28/2010   P   333,358 A $ 333,358 $ 1,000,000 D (1)   2.48% Senior Notes Series A due Dec. 15, 2013 10/28/2010   P   3,333,000 A $ 3,333,000 $ 10,000,000 I See Below. 4.29% Senior Notes Series D due Dec. 15, 2020 10/28/2010   P   4,333,642 A $ 4,333,642 $ 13,000,000 I See Below. 4.29% Senior Notes Series D due Dec. 15, 2020 10/28/2010   P   333,358 A $ 333,358 $ 1,000,000 I See Below.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Sun Life Assurance CO of Canada 150 KING STREET WEST TORONTO, A6 M5H 1J9		X
SUN LIFE INSURANCE & ANNUITY CO OF NEW YORK 60 E 42ND ST, SUITE 1115 NEW YORK, NY 10165		X
SUN LIFE FINANCIAL INC SUN LIFE ASSURANCE CO OF CANADA 150 KING STREET WEST SUITE 1400 TORONTO, A6		X

Signatures

/s/ John T. Donnelly, Senior Managing Director - Investment Products and Strategies on behalf of Sun Life Assurance Company of Canada and Sun Life Insurance and Annuity Company of New York		10/29/2010
**Signature of Reporting Person		Date
/s/ Ann King, Authorized Signer for Sun Life Assurance Company of Canada and Sun Life Insurance and Annuity Company of New York		10/29/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Direct ownership held by Sun Life Insurance and Annuity Co of New York, an affiliate of Sun Life Assurance CO of Canada.
Remarks: Sun Life Financial Inc. (a) owns 100% of the outstanding shares of common stock of Sun Life Assurance Company of Canada, the direct owner of the 2.48% Senior Notes Series A due December 15, 2013 and $13,000,000 of the 4.29% Senior Notes Series D due December 15, 2020 and (b) indirectly owns 100% of the outstanding shares of common stock of Sun Life Insurance and Annuity Company of New York, the direct owner of $1,000,000 of the 4.29% Senior Notes Series D due December 15, 2020.

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