SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

Information to be Included in Statements Filed Pursuant to §240.13d-1(b), (c)
and (d) and Amendments Thereto Filed Pursuant to §240.13d-2

Under the Securities Exchange Act of 1934
(Amendment No. 2 )*

Keryx Biopharmaceuticals
______________________________
(Name of Issuer)

Common Stock
______________________________
(Title of Class of Securities)

492515101
______________________________
(CUSIP Number)

     February 29, 2008
_______________________________________________________
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

(x) Rule 13d-1(b)
( ) Rule 13d-1(c)
( ) Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

(Continued on following page(s))

1.	NAME OF REPORTING PERSONS
	TIAA-CREF Investment Management, LLC
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a) ( )
				(b) ( )
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
NUMBER OF SHARES BENEFICIALLY OWNED
BY EACH REPORTING PERSON WITH:
	5.	SOLE VOTING POWER	4,005,598
	6.	SHARED VOTING POWER	0
	7.	SOLE DISPOSITIVE POWER	4,005,598
	8.	SHARED DISPOSITIVE POWER	0
9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	4,005,598
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
	SHARES                                                                                 ( )
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
	9.15%
12.	TYPE OF REPORTING PERSON
	IA

1.	NAME OF REPORTING PERSONS
	College Retirement Equities Fund - Stock Account
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a) ( )
				(b) ( )
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
	New York
NUMBER OF SHARES BENEFICIALLY OWNED
BY EACH REPORTING PERSON WITH:
	5.	SOLE VOTING POWER	0
	6.	SHARED VOTING POWER	3,026,444
	7.	SOLE DISPOSITIVE POWER	0
	8.	SHARED DISPOSITIVE POWER	3,026,444
9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	3,026,444
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES
	CERTAIN SHARES                                                               ( )
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
	6.92%
12.	TYPE OF REPORTING PERSON
	IV

1.	NAME OF REPORTING PERSONS
	Teachers Advisors, Inc.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP			(a) ( )
				(b) ( )
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
	Delaware
NUMBER OF SHARES BENEFICIALLY OWNED
BY EACH REPORTING PERSON WITH:
	5.	SOLE VOTING POWER	715,212
	6.	SHARED VOTING POWER	0
	7.	SOLE DISPOSITIVE POWER	715,212
	8.	SHARED DISPOSITIVE POWER	0
9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
	715,212
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN
	SHARES                                                                                    ( )
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9
	1.64%
12.	TYPE OF REPORTING PERSON
	IA

Item 1(a).		NAME OF ISSUER:
		Keryx Biopharmaceuticals
Item 1(b).		ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
		750 Lexington Avenue
		New York, NY 10022
Items 2(a)-2(c).		NAME, ADDRESS OF PRINCIPAL BUSINESS OFFICE, AND CITIZENSHIP
		OF PERSONS FILING:
		TIAA-CREF Investment Management, LLC (“Investment Management”)
		730 Third Avenue
		New York, NY 10017-3206
		Citizenship: Delaware
		College Retirement Equities Fund-Stock Account (“CREF Stock Account”)
		730 Third Avenue
		New York, NY 10017-3206
		Citizenship: New York
		Teachers Advisors, Inc. (“Advisors”)
		730 Third Avenue
		New York, NY 10017-3206
		Citizenship: Delaware
Item 2(d).		TITLE OF CLASS OF SECURITIES:
		Common Stock
Item 2(e).		CUSIP NUMBER: 492515101
Item 3.		IF THIS STATEMENT IS FILED PURSUANT TO RULES 13d-1(b), OR 13d-2(b) or
		(c), CHECK WHETHER THE PERSON FILING IS A:
Investment Management
(a)	( )	Broker or dealer registered under Section 15 of the Exchange Act.
(b)	( )	Bank as defined in Section 3(a)(6) of the Exchange Act.
(c)	( )	Insurance Company as defined in Section 3(a)(19) of the Exchange Act.
(d)	( )	Investment Company registered under Section 8 of the Investment Company Act.
(e)	(x)	An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).
(f)	( )	An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).
(g)	( )	A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).
(h)	( )	A savings association as defined in Section 3(b) of the Federal Deposit Insurance
		Act.
(i)	( )	A church plan that is excluded from the definition of an
		investment company under Section 3(c)(14) of the Investment Company Act.
(j)	( )	Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

CREF Stock Account
(a)	( )	Broker or dealer registered under Section 15 of the Exchange Act.
(b)	( )	Bank as defined in Section 3(a)(6) of the Exchange Act.
(c)	( )	Insurance Company as defined in Section 3(a)(19) of the Exchange Act.
(d)	(x)	Investment Company registered under Section 8 of the Investment Company Act.
(e)	( )	An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).
(f)	( )	An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).
(g)	( )	A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).
(h)	( )	A savings association as defined in Section 3(b) of the Federal Deposit Insurance
		Act.
(i)	( )	A church plan that is excluded from the definition of an
		investment company under Section 3(c)(14) of the Investment Company Act.
(j)	( )	Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
Advisors
(a)	( )	Broker or dealer registered under Section 15 of the Exchange Act.
(b)	( )	Bank as defined in Section 3(a)(6) of the Exchange Act.
(c)	( )	Insurance Company as defined in Section 3(a)(19) of the Exchange Act.
(d)	( )	Investment Company registered under Section 8 of the Investment Company Act.
(e)	(x)	An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).
(f)	( )	An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).
(g)	( )	A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).
(h)	( )	A savings association as defined in Section 3(b) of the Federal Deposit Insurance
		Act.
(i)	( )	A church plan that is excluded from the definition of an
		investment company under Section 3(c)(14) of the Investment Company Act.
(j)	( )	Group, in accordance with Rule 13d-1(b)(1)(ii)(J).
If this statement is filed pursuant to Rule 13d-1(c), check this box. ( )

Item 4.	OWNERSHIP
	(a) Aggregate amount beneficially owned:	4,720,810 (See Exhibit A attached)
	(b) Percent of class:	10.79%
	(c) Powers of shares:
		Investment Management	CREF- Stock Account	Advisors
Sole Voting Power:		4,005,598	0	715,212
Shared Voting Power:		0	3,026,444	0
Sole Dispositive Power:		4,005,598	0	715,212
Shared Dispositive Power:		0	3,026,444	0

Item 5.	OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.
	If this statement is being filed to report the fact that as of the date hereof the reporting
	person has ceased to be the beneficial owner of more than five percent of the class of
	securities, check the following ( ).
Item 6.	OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER
	PERSON.
	See Exhibit A attached
Item 7.	IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH
	ACQUIRED THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING
	COMPANY.
	Not Applicable
Item 8.	IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
	Not Applicable
Item 9.	NOTICE OF DISSOLUTION OF GROUP.
	Not Applicable
Item 10.	CERTIFICATION.
	By signing below I certify that, to the best of my knowledge and belief, the securities
	referred to above were acquired and are held in the ordinary course of business and were
	not acquired and are not held for the purpose of or with the effect of changing or
	influencing the control of the issuer of the securities and were not acquired and are not
	held in connection with or as a participant in any transaction having that purpose or
	effect.

SIGNATURE.

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: March 10, 2008

TIAA-CREF INVESTMENT

MANAGEMENT, LLC

By: /s/ Michael Albert_

Michael Albert

Managing Director

COLLEGE RETIREMENT EQUITIES

FUND-STOCK ACCOUNT

By: /s/ Michael Albert_

Michael Albert

Managing Director Control Services

TEACHERS ADVISORS, INC.

By: /s/ Michael Albert

Michael Albert

Managing Director

EXHIBIT A

ITEM 6. OWNERSHIP.

TIAA-CREF Investment Management, LLC (“Investment Management”) acts as an investment adviser to the College Retirement Equities Fund (“CREF”), a registered investment company, and may be deemed to be a beneficial owner of 4,005,598 shares of Issuer’s common stock owned by CREF. Teachers Advisors, Inc. (“Advisors”) is the investment adviser to three registered investment companies, TIAA-CREF Institutional Mutual Funds (“Institutional Funds”), TIAA-CREF Life Funds (“Life Funds”), and TIAA Separate Account VA-1 (“VA-1”), as well as the TIAA-CREF Asset Management Commingled Funds Trust I (“TCAM Funds”),and may be deemed to be a beneficial owner of 715,212 shares of Issuer’s common stock owned by Institutional Funds. Investment Management and Advisors are reporting their combined holdings for the purpose of administrative convenience. These shares were acquired in the ordinary course of business, and not with the purpose or effect of changing or influencing control of the Issuer. Each of Investment Management and Advisors expressly disclaims beneficial ownership of the other’s securities holdings and each disclaims that it is a member of a “group” with the other.